March weather forecastOntario, WI
March
Weather in March
The first month of the spring, March, is a wintry month in Ontario, Wisconsin, with an average temperature varying between 40.5°F (4.7°C) and 25.9°F (-3.4°C).Temperature
The onset of March marks a clear increase in the average high-temperature, escalating from a subzero cold 26.1°F (-3.3°C) in February to an icy 40.5°F (4.7°C). An average nighttime temperature of 25.9°F (-3.4°C) is noted during the month of March.Humidity
In Ontario, the average relative humidity in March is 82%.Rainfall
In March, the rain falls for 9.8 days. Throughout March, 1.81" (46mm) of precipitation is accumulated. In Ontario, during the entire year, the rain falls for 131.7 days and collects up to 27.83" (707mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Ontario, during March, snow falls for 6.8 days and regularly aggregates up to 2.68" (68mm) of snow. Throughout the year, in Ontario, there are 50.2 snowfall days, and 21.69" (551mm) of snow is accumulated.Daylight
In March, the average length of the day is 11h and 58min.On the first day of the month, sunrise is at 6:37 am and sunset at 5:51 pm CST. On the last day of March, sunrise is at 6:44 am and sunset at 7:28 pm CDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from CDT to CST.
Sunshine
In March, the average sunshine is 5.5h.UV index
The average daily maximum UV index in March is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 2 during March translates into these guidelines:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Ontario, WI
- Average high temperature in March: 40.5°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (22.1°F).
- Average low temperature in March: 25.9°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).
Average pressure in March
Ontario, WI
- Average pressure in March: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in March
Ontario, WI
- Average wind speed in March: 8.8mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in March
Ontario, WI
- Average humidity in March: 82%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (77%).
Average rainfall in March
Ontario, WI
- Average rainfall in March: 1.81"
The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in March
Ontario, WI
- Average rainfall days in March: 9.8 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (3.5 days).
Average snowfall in March
Ontario, WI
- Average snowfall in March: 2.68"
The month with the highest snowfall is February (5.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in March
Ontario, WI
- Average snowfall days in March: 6.8 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
Ontario, WI
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in March: 5h and 30min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in March
Ontario, WI
- Average sunshine days in March: 16.3 days
The month with the most sunshine days is December (17.5 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in March
Ontario, WI
- Average UV index in March: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in March
Ontario, WI
- Average cloud cover in March: 55
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in March
Ontario, WI
- Average visibility in March: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).





