March Weather in Casper, United States

Last updated: June 24, 2025

In Casper, United States, the average temperature in March typically hovers around -1°C (31°F). However, don't be surprised if you experience a chilling minimum of -30°C (-22°F) or a surprisingly warm maximum of 19°C (67°F). During this time, expect about 48 mm (1.9 in) of precipitation spread over 8 days, and with an average humidity of 70%, the weather can feel quite crisp!

March Temperature in Casper

In March in Casper, the average temperature is -1°C (31°F). Maximums can reach 19°C (67°F), while minimums can be as low as -30°C (-22°F). Travelers should prepare for a wide range of temperatures, from chilly conditions to surprisingly warm days.

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

The chart illustrates March temperature patterns in Casper, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Casper, March typically has an average temperature of -1°C (31°F), with highs reaching up to 19°C (67°F) and lows dropping to around -30°C (-22°F).

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

March Precipitation in Casper

In Casper in March, the precipitation amount is 48 mm (1.9 in) over a span of 8 days.

March Precipitation Trends in Casper

The chart displays monthly precipitation patterns in Casper, 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. In Casper, March typically receives around 48 mm (1.9 inches) of precipitation spread over approximately 8 days.

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

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Millimeters (mm) Inches (in)

March Humidity in Casper

In Casper in March, humidity is 70%. With an average temperature of -1°C (31°F), this humidity feels like a biting chill that penetrates your clothes, making outdoor exploration brisk and invigorating yet slightly uncomfortable without proper layers.

March Average Humidity in Casper

This chart illustrates the average monthly humidity levels in Casper, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Casper is approximately 70%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Casper

In Casper in March, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Casper.

Maximum UV Index Levels in Casper for March

The chart shows the monthly maximum UV Index (UVI) for Casper 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. In March, the maximum UV index in Casper typically reaches 7, which falls under the high exposure category.

Data source: Casper 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.

How March Weather in Casper Compares to Other Months

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

This table compares monthly weather conditions in Casper, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	23 mm (0.9 inches)	79%	moderate
February Weather	-7°C (19°F)	31 mm (1.2 inches)	81%	high
March Weather	-1°C (31°F)	48 mm (1.9 inches)	70%	high
April Weather	3°C (38°F)	59 mm (2.3 inches)	67%	extreme
May Weather	10°C (50°F)	70 mm (2.7 inches)	70%	very high
June Weather	18°C (65°F)	30 mm (1.2 inches)	75%	extreme
July Weather	22°C (72°F)	17 mm (0.7 inches)	76%	extreme
August Weather	21°C (69°F)	19 mm (0.7 inches)	76%	extreme
September Weather	16°C (60°F)	29 mm (1.2 inches)	72%	very high
October Weather	5°C (41°F)	43 mm (1.7 inches)	70%	high
November Weather	1°C (34°F)	26 mm (1.0 inches)	76%	moderate
December Weather	-5°C (24°F)	27 mm (1.1 inches)	81%	moderate