February Weather in Lewistown, United States

Last updated: June 24, 2025

In February, the average temperature in Lewistown, United States hovers around -1°C (31°F), with extremes ranging from a chilling -27°C (-17°F) to a surprisingly warm 24°C (75°F). Be prepared for some wet days, as 57 mm (2.2 in) of precipitation typically falls over 10 days. Additionally, 80% average humidity means you'll definitely want to dress for the season!

February Temperature in Lewistown

In February in Lewistown, the average temperature is -1°C (31°F). Maximums can reach 24°C (75°F), while minimums can drop as low as -27°C (-17°F). This wide temperature range makes it essential for travelers to pack accordingly for both warmth and comfort.

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 (31°F), with highs reaching up to 24°C (75°F) and lows dropping to around -27°C (-17°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 precipitation amount is 57 mm (2.2 in) over a span of 10 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 57 mm (2.2 inches) of precipitation spread over approximately 10 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 80%. With average temperature -1°C (31°F), this humidity feels like a biting chill that seeps into your bones, making every step outdoors a brisk reminder of the cold.

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 80%, 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	-2°C (29°F)	59 mm (2.3 inches)	82%	moderate
February Weather	-1°C (31°F)	57 mm (2.2 inches)	80%	moderate
March Weather	7°C (44°F)	115 mm (4.5 inches)	80%	high
April Weather	11°C (53°F)	100 mm (4.0 inches)	80%	very high
May Weather	18°C (66°F)	177 mm (7.0 inches)	82%	very high
June Weather	24°C (76°F)	105 mm (4.1 inches)	83%	extreme
July Weather	26°C (79°F)	91 mm (3.6 inches)	81%	very high
August Weather	24°C (76°F)	93 mm (3.7 inches)	80%	very high
September Weather	21°C (71°F)	81 mm (3.2 inches)	76%	very high
October Weather	14°C (57°F)	114 mm (4.5 inches)	76%	high
November Weather	5°C (42°F)	52 mm (2.1 inches)	85%	moderate
December Weather	2°C (36°F)	41 mm (1.6 inches)	86%	moderate