January Weather in Baltimore, United States

Last updated: February 24, 2025

January in Baltimore, United States brings a chill to the air, with temperatures fluctuating from a minimum of -13°C (9°F) to a comfortable maximum of 17°C (63°F). The average temperature hovers around 2°C (36°F), setting the stage for brisk winter days. This month also sees a fair amount of precipitation, totaling 70 mm (2.8 in) over 8 days, contributing to the city's lush landscapes even in chilly weather. With humidity levels reaching 84%, the air feels damp, enhancing the winter experience. Whether bundled up for outdoor adventures or warming up indoors, January in Baltimore is a season of contrasts and cozy charm.

January Temperature in Baltimore

In Baltimore, January welcomes the chill of winter with temperatures that can dip as low as -13°C (9°F), creating a stark contrast to the milder days that can reach up to 17°C (63°F). The average temperature hovers around 2°C (36°F), indicating that the month is firmly entrenched in the cold season. As the days progress towards February, a slight downward trend in minimum temperatures is noted, with lows dipping to -14°C (8°F). However, by late winter and into March, there’s a notable improvement as temperatures begin to rise, suggesting a transition from the cold grip of winter to the anticipation of spring. This pattern demonstrates Baltimore's characteristic climate shifts, where winter’s chill is closely followed by the promise of warming days ahead.

January Weather in Baltimore: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Baltimore, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec363945556474807772624841
Data source: Temperature data for Baltimore generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Baltimore

In January, Baltimore experiences a relatively mild start to the year, with an average precipitation of 70 mm (2.8 in) over approximately 8 days of rain. This modest rainfall sets the tone for a gradual uptick in both precipitation and rainy days as the year progresses. By February, precipitation nearly doubles, reaching 117 mm (4.6 in) while the rainy days increase to 12, revealing a trend towards wetter conditions. This pattern is further cemented in subsequent months, with March and April also showcasing higher amounts, peaking in May with 145 mm (5.7 in) and 14 rainy days. The increasing trend in precipitation highlights a significant escalation as spring approaches, complemented by the consistent theme of rainy days typically rising from winter into summer. Overall, January acts as a gentle precursor to the much wetter months that follow in Baltimore.

January Precipitation Trends in Baltimore

The chart displays monthly precipitation patterns in Baltimore, with values for each month alongside January's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec701179911414510615114311112390116
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Baltimore

In Baltimore, January stands out with a relatively high humidity level of 84%, setting the tone for the winter months. This extreme moisture lingers slightly into February and March, both maintaining an 83% humidity level. As spring approaches, a gradual decline occurs, with April showing a slight dip to 81% and May dropping further to 78%. The trend continues through the summer, with July and August experiencing the lowest humidity levels at 74% and 72%, respectively, providing a brief respite before humidity levels rise again in the fall. Notably, November and December see an uptick, returning to 84% and 85%, creating a cyclic pattern where winter and late autumn bring back the moisture, highlighting Baltimore's characteristic climate.

January Average Humidity in Baltimore

This chart illustrates the average monthly humidity levels in Baltimore, with January's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how January's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%81%78%79%74%72%75%81%85%84%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Baltimore

In Baltimore, January brings a UV Index of 3, categorizing exposure as moderate, with a burn time of 30 minutes. This trend of moderate UV levels continues into February. However, as spring approaches, the UV Index begins to climb, peaking in the summer months where it reaches an intense 10 during June and July. These shifts highlight a growing need for sun protection as the year progresses, particularly from March onward when the UV Index surpasses 5. By contrast, values dip back down to 3 by December, reinforcing the cyclical nature of UV exposure in the region. To stay informed about UV levels throughout the year, check out Baltimore UV Index.

Maximum UV Index Levels in Baltimore for January

The chart shows the monthly maximum UV Index (UVI) for Baltimore in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec357910101098753
Data source: Baltimore January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Baltimore

In Baltimore, January ushers in the year with 151 hours of sunshine, a modest start that sets the stage for a gradual increase in brightness. As the cold winter days transition into early spring, February sees a rise to 182 hours, hinting at the promise of warmer times ahead. By March, the days brighten significantly with 261 hours, while April and May continue to impress with 268 and 297 hours of sunshine, respectively. This upward trend peaks in the summer months, culminating in July's glorious 359 hours, bathing the city in light. As the seasons shift, sunlight begins to wane, with August’s 329 hours followed by a steady decline into the fall and winter, bringing 281 hours in September and dropping to 190 hours in December. Overall, Baltimore's sunshine patterns reveal a vibrant and lively summer, framed by a quieter, yet cozy winter.

Monthly Sunshine Duration in Baltimore: January Highlighted

The January sunshine duration represents the total number of hours Baltimore experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec151h182h261h268h297h339h359h329h281h250h226h190h
Data source: Baltimore January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Baltimore During January

In January, Baltimore experiences a 45% chance of sunny weather, which sets the stage for a promising start to the year. As the winter months progress, this percentage stands in stark contrast to the following month, February, where sunny days dip to 28%, marking it as the cloudiest time of the year. Interestingly, March sees a rebound with a 53% likelihood of sunshine, hinting at the impending arrival of spring. Overall, January's mild sunshine levels are indicative of a transitional period in Baltimore's climate, as residents eagerly anticipate brighter days ahead.

Percentage of Sunny Days in January in Baltimore

The chart illustrates the percentage of sunny days in Baltimore throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Baltimore experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec46%28%53%46%40%39%51%35%54%41%55%36%
Data source: Baltimore January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Baltimore in January

In Baltimore, January marks the beginning of a gradual increase in daylight, with only 9 hours of sunshine illuminating the city. As the season progresses, February brings a slight boost to 10 hours, setting the stage for the more significant jump in daylight that follows. By March, residents enjoy 11 hours, heralding the arrival of spring and a more radiant April, which shines with 13 hours of daylight. This trend continues into May and June, where daylight reaches a peak of 14 hours, offering ample opportunity for outdoor activities. As summer fades into autumn, daylight starts to wane, with August still basking in 13 hours before gradually decreasing to 12 hours in September. The decline continues into October and November, each offering 11 and 10 hours respectively, before returning to a cozy 9 hours in December. This cyclical pattern underscores the changing seasons and the increasing interplay between light and life in Baltimore throughout the year.

Average Daylight Hours in Baltimore for January

The chart illustrates the variation in daylight duration in Baltimore throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 45m10h 43m11h 58m13h 15m14h 19m14h 51m14h 34m13h 36m12h 23m11h 7m10h9h 26m
Data source: Baltimore daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Baltimore

In Baltimore, the January winds typically breeze in at an average speed of 3.8 m/s (8 mph), marking a transitional phase as the city emerges from the stillness of winter. As the months progress into February and March, the winds pick up slightly, reaching 4.1 m/s (9 mph), hinting at the approaching spring. This moderate increase continues into April, where the winds remain steady before gradually tapering off in the warmer months of June and July, dipping to 3.3 m/s (7 mph) and 3.0 m/s (7 mph), respectively. This trend culminates in August, when breezes lighten to 2.6 m/s (6 mph), showcasing the calm that often accompanies summer heat. However, as the seasons shift again, the winds regain strength in September and October, returning to more robust figures, peaking once again in November. By the year's end in December, the winds whisper a cool 3.4 m/s (8 mph), perpetuating the cycle of change that characterizes Baltimore's atmospheric rhythm.

Average January Wind Speed in Baltimore

The chart displays monthly wind speed patterns in Baltimore, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.8 m/s4.14.14.03.73.33.02.63.53.73.93.4
Data source: Baltimore January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Baltimore Compares to Other Months

The weather in Baltimore changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of January's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Baltimore and find detailed weather information for every month.

January and February exhibit some notable differences in weather patterns. January sees a minimum temperature of -13°C (9°F) with an average of 2°C (36°F) and a maximum of 17°C (63°F), accompanied by 70 mm (2.8 in) of precipitation over 8 days and a humidity level of 84%. In contrast, February tends to be slightly colder at night with a minimum of -14°C (8°F) but offers a marginally higher average temperature of 4°C (39°F) and a maximum of 20°C (69°F). Additionally, February experiences increased precipitation at 117 mm (4.6 in) over 12 days, while humidity remains relatively stable at 83%. For more detailed insights, check out Baltimore weather in February.

In January, the weather is notably colder, with average temperatures hovering around 2°C (36°F) and a minimum of -13°C (9°F). Precipitation is moderate, with around 70 mm (2.8 in) spread across 8 days, and the humidity reaching a high of 84%. In contrast, March shows a significant warming trend, boasting an average temperature of 7°C (45°F) and a maximum of 24°C (75°F), marking a shift towards spring. Although March experiences slightly more precipitation at 99 mm (3.9 in) over 10 days, the humidity remains relatively stable at 83%. For a closer look at the changing climate, check out Baltimore weather in March.

In January, the weather is notably colder, with temperatures ranging from a brisk -13°C (9°F) to a mild 17°C (63°F), and an average of 2°C (36°F). The month experiences around 70 mm (2.8 in) of precipitation over approximately 8 days, coupled with high humidity levels at 84%. In contrast, April brings a significant warming trend, with average temperatures rising to a comfortable 13°C (55°F), and highs reaching up to 27°C (81°F). Although April is slightly wetter with 114 mm (4.5 in) of rainfall over 11 days, the humidity is slightly lower at 81%. For a detailed look at April's weather, check out Baltimore weather in April.

In January, temperatures can drop as low as -13°C (9°F), with average highs around 2°C (36°F), making it a chilly month with significant precipitation of 70 mm (2.8 in) over about 8 days and high humidity at 84%. In contrast, May brings a much milder climate, with minimum temperatures of 3°C (38°F) and average highs reaching 18°C (65°F), peaking at a warm 30°C (87°F). Rainfall increases to 145 mm (5.7 in) over about 14 days, but the humidity drops slightly to 78%, providing a refreshing feel as spring transitions into summer. For more detailed insights on the typical weather during this month, check out Baltimore weather in May.

In January, the weather is significantly colder, with temperatures ranging from a frigid minimum of -13°C (9°F) to a milder maximum of 17°C (63°F), resulting in an average temperature of just 2°C (36°F). The month experiences about 70 mm (2.8 in) of precipitation over 8 days, accompanied by high humidity levels at 84%. In contrast, June brings a much warmer climate with temperatures soaring from a minimum of 11°C (52°F) to a peak of 32°C (90°F), averaging 23°C (74°F). Although June sees increased precipitation of 106 mm (4.2 in) spread over 14 days, the overall humidity decreases slightly to 79%. For a more detailed look at the weather patterns in June, you can check out Baltimore weather in June.

January and July present striking contrasts in weather patterns. In January, temperatures range from a chilling -13°C (9°F) to a mild 17°C (63°F), with an average of 2°C (36°F). This month also experiences higher humidity levels at 84% and approximately 70 mm of precipitation over 8 days. In contrast, July boasts warmer temperatures, with a minimum of 17°C (63°F) and a maximum reaching up to 35°C (96°F), averaging 27°C (80°F). Although July is generally drier with 151 mm of precipitation across 13 days, the humidity drops to 74%. For more detailed insights, you can check out Baltimore weather in July.

In January, temperatures in the region can drop as low as -13°C (9°F), but the average hovers around a chilly 2°C (36°F), reaching a maximum of 17°C (63°F). The month experiences about 70 mm (2.8 in) of precipitation over approximately 8 days, accompanied by a high humidity level of 84%. In stark contrast, August brings significantly warmer temperatures, with a minimum of 16°C (62°F) and an average of 25°C (78°F), peaking at 33°C (92°F). However, it also sees increased precipitation, with 143 mm (5.6 in) over 16 days, and a lower humidity of 72%. For more detailed insights into the warmer month, check out the link: Baltimore weather in August.

In January, the weather is significantly colder, with temperatures ranging from a brisk -13°C (9°F) to a mild max of 17°C (63°F), creating an average temperature of just 2°C (36°F). This month also experiences approximately 70 mm (2.8 in) of precipitation over 8 days, coupled with a high humidity level of 84%. In stark contrast, September sees much warmer temperatures, ranging from a minimum of 9°C (49°F) to a comfortable maximum of 32°C (89°F), with an average temperature of 22°C (72°F). However, September is also wetter, with around 111 mm (4.4 in) of rainfall across 10 days and a slightly lower humidity level of 75%. For a more detailed look at September weather, check out Baltimore weather in September.

When comparing the weather between January and October, there are notable differences in temperature and precipitation patterns. January often experiences colder temperatures, with minimums dropping to -13°C (9°F) and averaging around 2°C (36°F), while October enjoys milder conditions, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 32°C (91°F) and an average of 17°C (63°F). In terms of precipitation, October is generally wetter, receiving 123 mm (4.8 in) over 11 days compared to January's 70 mm (2.8 in) across 8 days. Although both months have high humidity levels, January's humidity sits at 84%, slightly higher than October's 81%. For more information about October weather, you can visit Baltimore weather in October.

In January, temperatures in Baltimore can range from a chilling -13°C (9°F) at their lowest to a milder 17°C (63°F) at their peak, with an average of about 2°C (36°F). The month experiences approximately 70 mm (2.8 in) of precipitation over 8 days, coupled with a relatively high humidity level of 84%.

In contrast, November sees a more moderate temperature range, with lows around -4°C (26°F) and highs reaching up to 23°C (73°F), averaging 9°C (48°F). Precipitation increases slightly to 90 mm (3.6 in), yet the number of rainy days remains the same at 8, and humidity is slightly higher at 85%. For a closer look at Baltimore's November weather, visit Baltimore weather in November.

January and December in Baltimore exhibit notable similarities and differences in weather. Both months maintain high humidity levels of 84%, but January is generally colder, with an average temperature of 2°C (36°F) compared to December's average of 5°C (41°F). While both months can reach a maximum temperature of 17°C (63°F), January experiences lower minimum temperatures, dipping to -13°C (9°F) compared to December's -9°C (16°F). Precipitation is more abundant in December, with 116 mm (4.6 in) over 9 days, while January sees 70 mm (2.8 in) across 8 days. For more details on December weather, check Baltimore weather in December.

Compare Baltimore's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Baltimore

As the heart of winter, January in Baltimore presents a stark contrast to the milder months, characterized by its chilly temperatures, which can dip significantly, often making outdoor activities a challenge. With an average temperature lingering around just 2°C, the city experiences its coldest days, with maximum highs reaching only up to 17°C and occasional lows plummeting to -13°C. The elevated humidity at 84% can make the cold feel even more biting, while the city receives about 70 mm of precipitation over approximately 8 days, bringing a mix of rain and the occasional snowfall. For those curious about the broader climatic trends you can expect throughout the year, explore the details further at Baltimore Climate.