March Weather in Sullivan, United States

Last updated: June 24, 2025

In March, the average temperature in Sullivan, United States hovers around 7°C (44°F). Prepare for a wide range, with minimums dipping to -17°C (2°F) and maximums soaring up to 25°C (77°F). Expect 127 mm (5.0 in) of precipitation over approximately 12 days, accompanied by a high average humidity of 84%. Stay cozy and ready for varying weather conditions!

March Temperature in Sullivan

In March in Sullivan, the average temperature is 7°C (44°F). The maximum can reach 25°C (77°F), and the minimum can be as low as -17°C (2°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

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

The chart illustrates March temperature patterns in Sullivan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sullivan, March typically has an average temperature of 7°C (44°F), with highs reaching up to 25°C (77°F) and lows dropping to around -17°C (2°F).

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

March Precipitation in Sullivan

In Sullivan in March, the precipitation amount is 127 mm (5.0 in) occurring over the course of 12 days.

March Precipitation Trends in Sullivan

The chart displays monthly precipitation patterns in Sullivan, 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 Sullivan, March typically receives around 127 mm (5.0 inches) of precipitation spread over approximately 12 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 Sullivan

In Sullivan in March humidity is 84%. With an average temperature of 7°C (44°F), this humidity feels like a damp chill that seeps into your bones, making it uncomfortable for traveling and requiring extra layers to stay warm and dry.

March Average Humidity in Sullivan

This chart illustrates the average monthly humidity levels in Sullivan, 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 Sullivan is approximately 84%, 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 Sullivan

In Sullivan in March, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Sullivan, you can refer to this Hourly UV Index in Sullivan.

Maximum UV Index Levels in Sullivan for March

The chart shows the monthly maximum UV Index (UVI) for Sullivan 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 Sullivan typically reaches 6, which falls under the high exposure category.

Data source: Sullivan 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 Sullivan Compares to Other Months

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

This table compares monthly weather conditions in Sullivan, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-1°C (30°F)	79 mm (3.1 inches)	84%	moderate
February Weather	0°C (33°F)	79 mm (3.1 inches)	82%	moderate
March Weather	7°C (44°F)	127 mm (5.0 inches)	84%	high
April Weather	12°C (53°F)	125 mm (4.9 inches)	83%	very high
May Weather	19°C (66°F)	138 mm (5.4 inches)	80%	very high
June Weather	24°C (76°F)	108 mm (4.2 inches)	83%	extreme
July Weather	25°C (78°F)	116 mm (4.6 inches)	82%	very high
August Weather	24°C (75°F)	128 mm (5.0 inches)	82%	very high
September Weather	22°C (71°F)	69 mm (2.7 inches)	79%	very high
October Weather	14°C (58°F)	123 mm (4.8 inches)	79%	high
November Weather	6°C (42°F)	89 mm (3.5 inches)	88%	moderate
December Weather	3°C (37°F)	64 mm (2.5 inches)	87%	moderate