March Weather in Keystone, United States

Last updated: February 24, 2025

In March, Keystone, United States experiences a unique blend of late winter chill and early spring promise. With a maximum temperature of 9°C (49°F) and an average of -5°C (22°F), residents and visitors alike navigate a landscape where the minimum can plunge to a brisk -25°C (-12°F). This month sees around 67 mm (2.7 in) of precipitation spread over 14 days, contributing to a humid atmosphere with an average humidity level of 81%. As Keystone transitions from winter's grip, the fluctuating weather patterns create a dynamic backdrop for outdoor activities and scenic exploration.

March Temperature in Keystone

In Keystone, United States, March signals a gradual warming as winter gives way to spring. The month opens with chilly minimum temperatures around -25°C (-12°F), setting a brisk tone, while the average temperature begins to rise to a relatively milder -5°C (22°F). Daytime highs reach a cozy 9°C (49°F), mirroring the end-of-winter thaw underway. This pattern showcases a significant shift from the frigid depths of February, where minimums dipped to a staggering -28°C (-19°F). As March progresses, the landscape transforms with melting snow and budding greenery, marking the transition towards a more temperate April—a sign that the icy grip of winter is loosening, paving the way for the warmer days ahead.

March Weather in Keystone: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Keystone, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec131422273546525145302013
Data source: Temperature data for Keystone 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.

March Precipitation in Keystone

In March, Keystone experiences a notable uptick in precipitation, accumulating 67 mm (2.7 in) over approximately 14 days of rainfall. This increase marks a continuation of the trend initiated in February, where 59 mm (2.3 in) fell, setting the stage for the spring season. As the region transitions into April, precipitation rises further to 78 mm (3.1 in), suggesting a pattern of increasing moisture that not only nourishes the blooming landscape but also contributes to the vibrant ecosystem. The consistency of rainfall days in March reflects the ongoing unpredictable weather patterns typical of early spring, setting the tone for the wetter months ahead.

March Precipitation Trends in Keystone

The chart displays monthly precipitation patterns in Keystone, with values for each month alongside March's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec415967788150835343564143
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

March Humidity in Keystone

In March, Keystone experiences a notable shift in humidity levels, dropping to 81% after a consistently higher range throughout the winter months, where January and February recorded 88% and 87% respectively. This decline marks the beginning of a gradual decrease leading into spring, as April further cools down to 76% and May brings a drier atmosphere at 66%. The transition is evident as the landscape shifts from the dampness characteristic of winter, paving the way for the warmer, more enjoyable summer months ahead, where humidity levels reach their yearly low of 52% in July before beginning to rise again. This March drop not only signals the end of winter's grip but also sets the tone for the transitional months, enhancing the overall experience of the changing seasons in this beautiful region.

March Average Humidity in Keystone

This chart illustrates the average monthly humidity levels in Keystone, with March's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how March's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%81%76%67%58%52%56%65%76%82%89%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Keystone

As spring awakens in March, the UV Index in Keystone, United States, soars to 9, indicating a shift to a very high exposure category, with a burn time reduced to just 15 minutes. This significant rise from February's 6 underscores the increasing intensity of the sun's rays as the days grow longer and warmer. With the UV Index expected to escalate even further in April and May, when it reaches extreme levels, it's crucial for residents and visitors to adopt sun protection measures early on. Staying informed about these trends is vital for enjoying the outdoors safely. For more details on UV levels throughout the year, visit Keystone UV Index.

Maximum UV Index Levels in Keystone for March

The chart shows the monthly maximum UV Index (UVI) for Keystone in March, 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.
JanFebMarAprMayJunJulAugSepOctNovDec469121314131211754
Data source: Keystone March 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.

March Sunshine in Keystone

March marks a delightful turning point in Keystone, as the sun begins to shine brighter and longer. With 291 hours of sunshine, it outshines the winter months, inviting residents and visitors alike to embrace the budding warmth of spring. This increase in sunlight sets the stage for a gradual ascent, leading into April and May where sunshine reaches 316 hours and an impressive 355 hours, respectively. The clear trend toward longer days fosters an atmosphere of excitement, signaling that outdoor adventures and scenic escapes are just around the corner. As the days grow longer, Keystone's vibrant landscapes come alive, making March a pivotal month of transition and promise.

Monthly Sunshine Duration in Keystone: March Highlighted

The March sunshine duration represents the total number of hours Keystone experiences direct sunlight during the month of March, excluding cloudy or obstructed periods. This chart compares the sunshine duration of March with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec183h232h291h316h355h382h382h357h314h280h247h237h
Data source: Keystone March Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Keystone During March

As March unfolds in Keystone, United States, the likelihood of sunny weather stands at 47%, a slight uptick compared to February's 38%. This indicates a welcome trend as the winter months gradually yield to the promise of spring. Although March isn't the sunniest month on record, it comes close to the average sun chance seen in January and contributes to the increasing potential for clear skies leading into April, which boasts a 51% chance of sunshine. The transition into warmer months throughout the year hints at an overall upward trajectory, peaking in the summer and early fall. Thus, while March still shows signs of winter's grip, the approaching season offers a hopeful glimpse of sunnier days ahead.

Percentage of Sunny Days in March in Keystone

The chart illustrates the percentage of sunny days in Keystone throughout the year, with March 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 Keystone experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec48%38%47%52%42%52%48%61%65%54%60%53%
Data source: Keystone March chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Keystone in March

As March unfolds in Keystone, United States, residents experience a noticeable increase in daylight duration, with the sun gracing the skies for 11 hours. This shift marks a transition from the brisk, shorter days of January and February, each providing only 9 and 10 hours of light, respectively. The gradual lengthening of daylight heralds the arrival of spring, promising more sun-soaked days ahead. By April, the trend accelerates, with daylight reaching 13 hours, signaling that nature is ready to burst into bloom. This progressive increase not only brightens the landscape but also lifts spirits, encouraging outdoor activities as Keystone prepares for the warmer months ahead.

Average Daylight Hours in Keystone for March

The chart illustrates the variation in daylight duration in Keystone throughout the year, with March highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 44m10h 43m11h 58m13h 16m14h 21m14h 53m14h 35m13h 37m12h 23m11h 6m9h 59m9h 25m
Data source: Keystone daylight hours, calculated by summing the hours between sunrise and sunset for each day.

March Winds in Keystone

In March, the winds in Keystone, United States embrace the early signs of spring, with an average wind speed of 2.5 m/s (6 mph). This slight dip from February's 3.2 m/s (7 mph) indicates a transition as the cold winter winds start to soften. As the month unfolds, residents can expect a mix of breezy days that invigorate the crisp mountain air, paving the way for warmer weather ahead. Following this trend, the winds generally remain gentle leading into April, suggesting a calming effect in the wake of the higher speeds observed in the earlier months. Overall, March presents a delightful balance of revitalizing gusts, inviting outdoor exploration in the fresh, emerging spring landscape.

Average March Wind Speed in Keystone

The chart displays monthly wind speed patterns in Keystone, with values for each month shown alongside March's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how March's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.73.22.5 m/s2.62.42.01.82.02.02.52.82.9
Data source: Keystone March wind data, generated using information from the Copernicus Climate Change Service.

How March Weather in Keystone Compares to Other Months

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

In comparing the weather between March and January, March generally presents slightly milder temperatures, with an average of -5°C (22°F), compared to January's colder average of -11°C (13°F). While January has a lower minimum temperature of -26°C (-15°F), March still experiences a chilly minimum of -25°C (-12°F). Precipitation is more frequent in March, occurring over 14 days with a total of 67 mm (2.7 in), which is significantly higher than January’s precipitation of 41 mm (1.6 in) over only 10 days. Additionally, humidity is slightly lower in March at 81%, compared to January's 88%. For more detailed insights on weather trends, you can refer to Keystone weather in January.

In comparing the weather between March and February, March shows a slight improvement in temperatures with average lows of -25°C (-12°F) compared to February's colder minimum of -28°C (-19°F). While both months share the same maximum temperature of 9°C (48°F), March offers a milder average temperature of -5°C (22°F) versus February's -10°C (14°F). Precipitation levels are also slightly higher in March, with 67 mm (2.7 in) over 14 days, compared to February's 59 mm (2.3 in) for the same number of days. Humidity is marginally lower in March at 81%, compared to February's 87%. For more details on February weather, check out Keystone weather in February.

In comparing the weather between March and April, both months exhibit cold temperatures, but there are some notable differences. March sees a minimum temperature of -25°C (-12°F) with an average of -5°C (22°F) and a maximum of 9°C (49°F), while April features slightly milder temperatures with a minimum of -21°C (-5°F) and an average of -3°C (27°F), reaching a maximum of 10°C (50°F). Precipitation is relatively consistent, with March receiving 67 mm (2.7 in) over 14 days compared to April's 78 mm (3.1 in) over 13 days. Additionally, humidity levels are slightly lower in April at 76%, compared to March's 81%. For more specific insights into April’s climate, you can check Keystone weather in April.

When comparing the weather in March and May, it is clear that both months experience cold temperatures, but May typically offers a slight improvement. In March, temperatures can plunge as low as -25°C (-12°F), with an average of -5°C (22°F) and a maximum of 9°C (49°F). Meanwhile, May sees a milder range, with minimum temperatures around -13°C (10°F) and a maximum reaching 17°C (63°F). Although precipitation in both months is similar, with March at 67 mm (2.7 in) and May slightly higher at 81 mm (3.2 in), the humidity levels drop significantly from March's 81% to May's 66%. For a closer look at what to expect during May, check out Keystone weather in May.

March and June present striking contrasts in weather conditions. In March, temperatures range from a frigid minimum of -25°C (-12°F) to a mild maximum of 9°C (49°F), with an average of -5°C (22°F). This month sees considerable precipitation, totaling 67 mm (2.7 in) over approximately 14 days, coupled with high humidity at 81%. In contrast, June enjoys a much warmer climate, with temperatures ranging from a minimum of -9°C (15°F) to a comfortable maximum of 24°C (75°F) and an average of 8°C (46°F). Precipitation in June is lighter, at 50 mm (2.0 in) over about 10 days, and humidity drops to 58%. For more details on the climate during June, visit Keystone weather in June.

March and July present contrasting weather conditions, showcasing the transition from winter to summer. In March, temperatures range from a chilling minimum of -25°C (-12°F) to a maximum of 9°C (49°F), with an average around -5°C (22°F). The month experiences significant precipitation, totaling 67 mm (2.7 in) across 14 days, accompanied by high humidity at 81%. In stark contrast, July boasts a much milder climate, with temperatures ranging from a minimum of -2°C (28°F) to a comfortable maximum of 23°C (74°F), averaging 11°C (53°F). July sees slightly more precipitation at 83 mm (3.3 in) over 15 days, but with a notable decrease in humidity to 52%. For a more detailed look at July weather, you can check out Keystone weather in July.

March and August offer distinct weather experiences, highlighting the transition from winter to summer. In March, temperatures can be quite frigid, with minimums dropping to -25°C (-12°F) and an average of -5°C (22°F), contrasted by max temperatures of only 9°C (49°F). The month also sees higher humidity at 81% and a notable 67 mm (2.7 in) of precipitation over about 14 days. In contrast, August presents a much milder climate, with minimum temperatures at 0°C (32°F) and an average of 11°C (52°F), reaching a comfortable maximum of 22°C (73°F). Precipitation is reduced to 53 mm (2.1 in) across 11 days, and humidity drops to 56%. For more specific details on August weather, you can check Keystone weather in August.

March weather is characterized by colder temperatures, with a minimum of -25°C (-12°F) and an average around -5°C (22°F). The month experiences a fair amount of precipitation, totaling 67 mm (2.7 in) over roughly 14 days, and humidity levels remain high at 81%. In contrast, September offers a significant warming trend, with temperatures ranging from a minimum of -11°C (13°F) to a pleasant average of 7°C (46°F), peaking at 22°C (72°F). Precipitation decreases to 43 mm (1.7 in) over just 9 days, and humidity drops to a more comfortable 65%. For more detailed insights, check out Keystone weather in September.

March and October present notably different weather conditions despite both being transitional months in many regions. In March, temperatures typically range from a minimum of -25°C (-12°F) to a maximum of 9°C (49°F), with an average of -5°C (22°F). This month often sees substantial precipitation, accumulating to 67 mm (2.7 inches) over approximately 14 days, contributing to an 81% humidity level. In contrast, October experiences milder conditions, with temperatures varying from -24°C (-10°F) to a warmer maximum of 17°C (63°F) and an average of -1°C (31°F). Precipitation is slightly lower at 56 mm (2.2 inches) over about 9 days, and the humidity level is also lower at 76%. For a detailed look at weather patterns specifically in October, explore Keystone weather in October.

March and November feature similar cold temperatures, but the nuances in their weather patterns are notable. In March, the average temperature hovers around -5°C (22°F) with daily highs reaching up to 9°C (49°F). However, precipitation is more frequent during this month, occurring on about 14 days and totaling 67 mm (2.7 in), accompanied by humidity levels of 81%. In contrast, November showcases slightly lower temperatures, with an average of -7°C (20°F) and a maximum of 10°C (50°F). Precipitation is less frequent, falling on 8 days, and totals 41 mm (1.6 in), while humidity remains comparable at 82%. For more detailed weather information in November, you can refer to Keystone weather in November.

March weather is generally milder compared to December, with average temperatures hovering around -5°C (22°F), while December experiences a chillier average of -11°C (13°F). Both months face low maximum temperatures, but March offers slightly warmer highs of 9°C (49°F) compared to December’s 8°C (47°F). In terms of precipitation, March is wetter with 67 mm (2.7 in) over approximately 14 days, while December has less precipitation at 43 mm (1.7 in) across 10 days. Humidity remains high in both months, with December slightly more humid at 89% compared to March's 81%. For more detailed insights, you can refer to Keystone weather in December.

Compare Keystone's Climate with Cities Worldwide

Conclusion: What to Expect From March Weather in Keystone

March in Keystone showcases a distinct transition from the depths of winter, where chilly temperatures linger but gradually begin to warm. While the month still clings to the remnants of snow, its average temperature begins to rise, providing a refreshing shift from the more extreme cold of January and February. With a fair amount of precipitation, March can be quite wet, resulting in a blend of rain and late-season snow, creating a unique and dynamic atmosphere. The humidity reaches a notable 81%, contributing to a crisp yet invigorating mountain air. For those curious about the broader climate trends and how March compares to other months, check out Keystone Climate for more insights.