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February Weather in Lewistown, United States

Last updated: June 24, 2025

In February, the average temperature in Lewistown, United States hovers around -8°C (18°F), with temperatures ranging from a chilly -34°C (-30°F) at their lowest to a moderate 14°C (57°F) at their highest. Expect precipitation of about 43 mm (1.7 in) over 11 days, contributing to an average humidity of 85%. Bundle up and prepare for a cold and damp month!

February Temperature in Lewistown

In February in Lewistown, the average temperature is -8°C (18°F). Maximum temperatures can reach up to 14°C (57°F), while the minimum can plunge as low as -34°C (-30°F). Travelers should be prepared for both chilly days and the possibility of extreme cold during their visit.

February Weather in Lewistown: Daily Temperature Highs, Lows, and Averages

The chart illustrates February temperature patterns in Lewistown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Lewistown, February typically has an average temperature of -8°C (18°F), with highs reaching up to 14°C (57°F) and lows dropping to around -34°C (-30°F).
JanFebMarAprMayJunJulAugSepOctNovDec251832385060696757413426
Data source: Temperature data for Lewistown generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

February Precipitation in Lewistown

In Lewistown in February, the total precipitation amount is 43 mm (1.7 in) recorded over a span of 11 days.

February Precipitation Trends in Lewistown

The chart displays monthly precipitation patterns in Lewistown, with values for each month alongside February’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how February’s conditions compare to those of other months. In Lewistown, February typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec254329768480303145453431
Data source: Precipitation data for February generated using information from the Copernicus Climate Change Service.
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February Humidity in Lewistown

In Lewistown in February humidity is 85%. With an average temperature of -8°C (18°F), this humidity feels like an icy blanket that clings to your skin, making outdoor travel chillingly uncomfortable despite the cold air.

February Average Humidity in Lewistown

This chart illustrates the average monthly humidity levels in Lewistown, with February’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In February, average humidity in Lewistown is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%85%77%72%75%78%79%76%67%69%78%85%
Data source: Humidity data for February generated using information from the Copernicus Climate Change Service.

February UV Index in Lewistown

In Lewistown in February, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Lewistown for better planning.

Maximum UV Index Levels in Lewistown for February

The chart shows the monthly maximum UV Index (UVI) for Lewistown in February, 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. In February, the maximum UV index in Lewistown typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24589101098532
Data source: Lewistown February 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.

How February Weather in Lewistown Compares to Other Months

Weather in Lewistown varies notably across the year, with each month offering distinct climate conditions. This page compares February’s weather to other months in Lewistown, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Lewistown, showing how February’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (25°F)25 mm (1.0 inches)81%low
February Weather-8°C (18°F)43 mm (1.7 inches)85%moderate
March Weather0°C (32°F)29 mm (1.2 inches)77%moderate
April Weather3°C (38°F)76 mm (3.0 inches)72%very high
May Weather10°C (50°F)84 mm (3.3 inches)75%very high
June Weather16°C (61°F)80 mm (3.2 inches)78%very high
July Weather20°C (69°F)30 mm (1.2 inches)79%very high
August Weather19°C (67°F)31 mm (1.2 inches)76%very high
September Weather14°C (57°F)45 mm (1.8 inches)67%very high
October Weather5°C (42°F)45 mm (1.8 inches)69%moderate
November Weather1°C (34°F)34 mm (1.3 inches)78%moderate
December Weather-3°C (27°F)31 mm (1.2 inches)85%low

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