February Weather in Lewistown, United States

Last updated: June 24, 2025

In February, the average temperature in Lewistown, United States hovers around -1°C (30°F). While you might experience a chill with minimums plummeting to -30°C (-22°F), the mercury can rise as high as 22°C (73°F). Expect to get a bit wet, with 68 mm (2.7 in) of precipitation spread across 11 days, and don't forget to prepare for the 81% average humidity that adds to the overall experience.

February Temperature in Lewistown

In February in Lewistown, the average temperature is -1°C (30°F). Maximums can reach 22°C (73°F), while minimums can drop as low as -30°C (-22°F). Travelers should be prepared for significant temperature fluctuations and pack accordingly.

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 -1°C (30°F), with highs reaching up to 22°C (73°F) and lows dropping to around -30°C (-22°F).

Data source: Temperature data for Lewistown generated using information from the Copernicus Climate Change Service.

February Precipitation in Lewistown

In Lewistown in February, the total precipitation amount is 68 mm (2.7 in) spread over a duration 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 68 mm (2.7 inches) of precipitation spread over approximately 11 days.

Data source: Precipitation data for February generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

February Humidity in Lewistown

In Lewistown in February, humidity is 81%. With an average temperature of -1°C (30°F), this humidity feels like an extra layer of chill settles in, making travel uncomfortable and the cold air cling to your skin, dampening the experience with every breath.

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 81%, offering insight into how humid the weather typically is during this month.

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 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Lewistown.

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 5, which falls under the moderate exposure category.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	60 mm (2.4 inches)	81%	moderate
February Weather	-1°C (30°F)	68 mm (2.7 inches)	81%	moderate
March Weather	6°C (42°F)	121 mm (4.8 inches)	81%	high
April Weather	11°C (51°F)	108 mm (4.3 inches)	82%	very high
May Weather	18°C (64°F)	169 mm (6.7 inches)	78%	very high
June Weather	24°C (75°F)	152 mm (6.0 inches)	81%	extreme
July Weather	25°C (78°F)	103 mm (4.0 inches)	79%	very high
August Weather	24°C (75°F)	86 mm (3.4 inches)	77%	very high
September Weather	21°C (70°F)	74 mm (2.9 inches)	78%	very high
October Weather	13°C (56°F)	117 mm (4.6 inches)	78%	high
November Weather	5°C (41°F)	57 mm (2.2 inches)	87%	moderate
December Weather	1°C (35°F)	52 mm (2.0 inches)	84%	low