October Weather in Baltimore, United States

Last updated: February 24, 2025

October in Baltimore, United States presents a delightful transition into the autumn season. Daytime temperatures can soar to a warm 32°C (91°F), while cooler nights bring the average down to a comfortable 17°C (63°F), with lows dipping to 4°C (39°F). With an overall 81% humidity, the air feels rich and invigorating. Rainfall is a common occurrence, contributing to a total of 123 mm (4.8 in) across 11 days, creating a vivid, colorful backdrop as the leaves change. This month is a dynamic blend of warmth and fall charm, making it an ideal time to explore the city.

October Temperature in Baltimore

In October, Baltimore experiences a pleasant transition into fall, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 32°C (91°F), resulting in a comfortable average of 17°C (63°F). This month marks a significant shift from the lingering warmth of summer, as the city enjoys mild days that are perfect for outdoor activities and cozy evenings. The gradual decrease in temperature not only makes October a beautiful time to witness the vibrant autumn foliage but also offers a hint of the chill that will soon settle in with November. Overall, October stands out as a delightful blend of warmth and coolness, inviting residents and visitors alike to relish the season’s charm.

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

The chart illustrates October 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.

October Precipitation in Baltimore

In October, Baltimore experiences a notable shift in its precipitation patterns, receiving an average of 123 mm (4.8 in) of rain over 11 days. This slightly elevated rainfall compared to the previous month creates a sense of transition as the city moves from the warmth of summer into the cooler fall season. While September saw 111 mm (4.4 in) over just 10 days, October's rainfall helps to replenish local water resources and nourish the vibrant autumnal foliage. The trend of increasing precipitation in the latter months of the year highlights Baltimore's shifting climate dynamics, marking a pivotal time for both the environment and the city's residents. As the leaves change and temperatures drop, October stands as a critical month for precipitation, serving as a bridge to the wetter, winter months ahead.

October Precipitation Trends in Baltimore

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

October Humidity in Baltimore

In October, Baltimore experiences a notable humidity level of 81%, indicating a slight uptick as the city transitions from the drier summer months. Throughout the year, humidity hovers significantly high, with January and November peaking at 84% and 85% respectively. However, as the seasons change, there's a gradual decline from the steamy heights of summer—July and August record the lowest humidity levels at 74% and 72%. This October reading marks a return to a more humid environment, suggesting that as fall settles in, the air becomes heavier, preparing for the wetter winter ahead. Overall, while summer's heat provides some respite with lower humidity levels, the autumn months bring a refreshingly moist atmosphere that contrasts the drier summer days.

October Average Humidity in Baltimore

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

October UV Index in Baltimore

In October, Baltimore experiences a noticeable shift in sun exposure, with a UV Index of 7, categorized as high. This marks a gradual decline from the very high levels seen throughout the summer months, yet it's still important to be cautious, as the burn time decreases to around 25 minutes. Compared to the peak of the season where consistent scores of 10 prevailed, October's index invites residents to enjoy the milder days, all while keeping sun safety in mind. As the leaves turn and the temperatures cool, remember that while the intensity of sunlight wanes, protecting your skin remains crucial. For more insights on UV levels, check out Baltimore UV Index.

Maximum UV Index Levels in Baltimore for October

The chart shows the monthly maximum UV Index (UVI) for Baltimore in October, 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 October 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.

October Sunshine in Baltimore

As autumn settles in Baltimore, October embraces a warmth reminiscent of summer, providing residents with an impressive 250 hours of sunshine. While the month enjoys fewer sun-soaked days than the peak of summer, it still ranks high compared to the earlier months of the year. The trend reveals a gradual decline in sunlight as the city transitions from the sunlit highs of July and June, yet October's golden rays help bridge the gap before the days grow shorter in November. This month stands out for its gentle luminosity, making it a delightful time to enjoy outdoor activities against the backdrop of vibrant fall foliage. The cumulative hours of sunshine, while less than previous months, still reflect the lingering charm of the season, inviting both residents and visitors to soak in the last vestiges of sun before winter descends.

Monthly Sunshine Duration in Baltimore: October Highlighted

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

Chance of Sun in Baltimore During October

In Baltimore, October offers a 41% chance of sunny weather, placing it slightly below the average for the year. As the summer heat transitions into the crispness of autumn, the likelihood of sunny days tends to fluctuate. Notably, September boasts the highest probability of sunshine at 54%, showcasing the tail end of summer's warmth. However, October's chances fall, reflecting a gradual decline as the region prepares for winter. This month lies just above the less sunny months of February and June, and slightly below April and May, suggesting that while clear skies are still possible, residents should be prepared for the playful variability of fall weather.

Percentage of Sunny Days in October in Baltimore

The chart illustrates the percentage of sunny days in Baltimore throughout the year, with October 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 October chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Baltimore in October

As October rolls into Baltimore, the city embraces the transition from summer's long days to the cozy embrace of autumn. With 11 hours of daylight, October marks a subtle shift from the brightness of the preceding months, yet it still offers a pleasant balance of light for outdoor activities. The gradual decline from the summer peak of 14 hours illuminates the changing seasons, highlighting a clear trend of decreasing daylight as the year winds down. This gradual fade, mirrored in the decline seen in September and continuing into November, signifies the onset of the shorter, darker days of winter, inviting residents to savor each sunlit moment of this beautiful fall month.

Average Daylight Hours in Baltimore for October

The chart illustrates the variation in daylight duration in Baltimore throughout the year, with October 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.

October Winds in Baltimore

As October unfolds in Baltimore, the city experiences a gentle whisper of the wind, with an average speed of 3.7 m/s (8 mph). This marks a slight increase from the summer months, where winds were at their calmest, drifting down to 2.6 m/s (6 mph) in August. The transition into fall brings a refreshing change, as October's breezes resemble those of April and May, signaling the approach of winter. The winds begin to gather strength again as the year winds down, reaching 3.9 m/s (9 mph) in November. Overall, October stands as a bridge between the serene stillness of summer and the brisk gusts of late fall, offering a perfect backdrop for autumn festivities and vibrant foliage.

Average October Wind Speed in Baltimore

The chart displays monthly wind speed patterns in Baltimore, with values for each month shown alongside October's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how October's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.84.14.14.03.73.33.02.63.53.7 m/s3.93.4
Data source: Baltimore October wind data, generated using information from the Copernicus Climate Change Service.

How October 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 October'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.

October and January present quite contrasting weather patterns. In October, temperatures can range from a cool 4°C (39°F) at night to a warm 32°C (91°F) during the day, with an average of 17°C (63°F). The month also sees considerable rainfall, with about 123 mm (4.8 in) of precipitation over 11 days and an average humidity of 81%. In stark contrast, January brings much colder conditions, with temperatures dropping to a minimum of -13°C (9°F) and peaking at a mild 17°C (63°F), averaging around 2°C (36°F). Precipitation decreases to 70 mm (2.8 in) over just 8 days, while humidity slightly rises to 84%. For further details on January weather, you can visit Baltimore weather in January.

October and February present stark contrasts in weather. In October, temperatures range from a mild 4°C (39°F) to a warm 32°C (91°F), with an average temperature of 17°C (63°F) and relatively high humidity at 81%. Precipitation is common, totaling 123 mm (4.8 in) over 11 days, creating a humid and comfortable atmosphere. In contrast, February is much chillier, with temperatures dipping as low as -14°C (8°F) and averaging just 4°C (39°F). While February's maximum temperature reaches 20°C (69°F), it still feels significantly cooler overall. Despite slightly less precipitation at 117 mm (4.6 in) over 12 days, February's humidity stands at 83%, contributing to a damp and frigid environment. For a detailed overview of February conditions, check out Baltimore weather in February.

The weather in October generally showcases a warmer and more variable climate, with average temperatures ranging from a minimum of 4°C (39°F) to a maximum of 32°C (91°F). In contrast, March tends to be cooler, with temperatures ranging from -7°C (20°F) to 24°C (75°F). Precipitation levels are relatively comparable, with October receiving about 123 mm (4.8 inches) over 11 days and March slightly less at 99 mm (3.9 inches) over 10 days. Humidity remains similar in both months, hovering around 81% in October and 83% in March. For a closer look at the specifics of March weather, you can visit Baltimore weather in March.

October and April present contrasting weather patterns, despite similar humidity levels of 81%. October has a broader temperature range, with minimums of 4°C (39°F) and maximums reaching 32°C (91°F), while April's temperatures range from a chilly 0°C (32°F) to a comfortable 27°C (81°F). Both months receive comparable precipitation, around 114-123 mm, spread over approximately 11 days; however, October generally feels warmer with its average temperature of 17°C (63°F) compared to April's 13°C (55°F). For more detailed insights, you can check out the Baltimore weather in April.

When comparing the weather in October and May, we observe notable similarities and differences. In October, temperatures range from a minimum of 4°C (39°F) to a maximum of 32°C (91°F), with an average of 17°C (63°F). The month experiences about 123 mm (4.8 in) of precipitation over 11 days and has a higher humidity level of 81%. In contrast, May features slightly cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 30°C (87°F), averaging at 18°C (65°F). May sees a bit more rainfall, totaling 145 mm (5.7 in) over 14 days, while humidity is slightly lower at 78%. For more details, check out Baltimore weather in May.

October and June exhibit distinct weather patterns in terms of temperature and precipitation. In June, the temperatures range from a minimum of 11°C (52°F) to an average of 23°C (74°F), peaking at a maximum of 32°C (90°F). This month experiences slightly less precipitation, totaling 106 mm (4.2 in) over 14 days, with humidity at 79%. In contrast, October sees cooler temperatures with a minimum of 4°C (39°F) and an average of 17°C (63°F), while still reaching a maximum of 32°C (91°F). However, October is wetter, receiving 123 mm (4.8 in) of precipitation over 11 days and higher humidity at 81%. For a detailed look at June weather, visit Baltimore weather in June.

When comparing the weather in October to that of July, we see a striking contrast in temperatures and conditions. October experiences a broader temperature range, with a minimum of 4°C (39°F) and a maximum of 32°C (91°F), averaging around 17°C (63°F). In contrast, July is generally warmer, with minimum temperatures starting at 17°C (63°F) and reaching up to 35°C (96°F), averaging 27°C (80°F). Additionally, October has a higher humidity level at 81% and slightly less precipitation, totaling 123 mm (4.8 in) over 11 days, compared to July's 151 mm (6.0 in) over 13 days. For more details on July weather, you can check Baltimore weather in July.

In comparing the weather between October and August, we see notable differences in temperature and precipitation patterns. October presents cooler temperatures with a minimum of 4°C (39°F) and an average of 17°C (63°F), peaking at 32°C (91°F), while August maintains significantly warmer conditions, with a minimum of 16°C (62°F), an average of 25°C (78°F), and a maximum of 33°C (92°F). Precipitation is also different, with October experiencing 123 mm (4.8 in) over 11 days, compared to August's higher total of 143 mm (5.6 in) over 16 days. Additionally, October’s humidity levels are higher at 81%, compared to August's 72%. For more insights on August weather, you can refer to Baltimore weather in August.

October weather shows a noticeable shift compared to September, with lower minimum temperatures averaging 4°C (39°F) compared to September's 9°C (49°F). Although both months experience the same maximum temperature of 32°C (91°F), October tends to have a cooler overall average of 17°C (63°F), compared to September's warmer average of 22°C (72°F). Additionally, October brings slightly more precipitation, totaling 123 mm (4.8 in) across 11 days, while September sees a bit less with 111 mm (4.4 in) over 10 days. The humidity also increases in October, rising to 81% from September's 75%. For more details, check out Baltimore weather in September.

October and November present a noticeable shift in weather patterns. In October, temperatures range from a comfortable minimum of 4°C (39°F) to a warm maximum of 32°C (91°F), with an average of 17°C (63°F). This month experiences a higher level of humidity at 81% and more precipitation, totaling 123 mm (4.8 in) over 11 days. In contrast, November brings cooler conditions, with temperatures dipping to a minimum of -4°C (26°F) and averaging 9°C (48°F), peaking at 23°C (73°F). The precipitation decreases to 90 mm (3.6 in) over 8 days, and humidity increases slightly to 85%. For more specific details about November weather, visit Baltimore weather in November.

October and December weather present a stark contrast in terms of temperature and climate conditions. In October, temperatures can range from a chilly minimum of 4°C (39°F) to a warm maximum of 32°C (91°F), with an average temperature of 17°C (63°F). The month sees moderate precipitation, totaling 123 mm (4.8 in) over about 11 days, accompanied by relative humidity of 81%. In contrast, December experiences much colder temperatures, with a minimum dipping to -9°C (16°F) and a maximum of just 17°C (64°F), resulting in an average temperature of 5°C (41°F). While precipitation is slightly less at 116 mm (4.6 in) over 9 days, humidity rises to 84%. For more detailed insights, you can refer to Baltimore weather in December.

Compare Baltimore's Climate with Cities Worldwide

Conclusion: What to Expect From October Weather in Baltimore

As October unfolds in Baltimore, the city experiences a delightful transition marked by a moderate average temperature that invites residents outdoors. Unlike the scorching summer months, October brings cooler nights and a refreshing autumnal breeze, making it perfect for enjoying the vibrant fall foliage. However, with an average humidity of 81% and about 11 days of precipitation, the weather can be a mix of chilly and damp conditions, reminding us of the impending winter. This month stands out as a time of change, blending the lingering warmth of summer with the crisp coolness of fall. For more insights into what to expect throughout the year, visit Baltimore Climate.