March weather forecastMount Vernon, IA
March
Weather in March
March, the first month of the spring in Mount Vernon, is a chilly month, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 30.7°F (-0.7°C).Temperature
With the onset of March, Mount Vernon experiences a distinct temperature rise, with the average high-temperature advancing from February's subzero cold 30.6°F (-0.8°C) to a frosty 45.5°F (7.5°C). The average nighttime temperature lowers to a freezing cold 30.7°F (-0.7°C) throughout March.Humidity
In Mount Vernon, the average relative humidity in March is 77%.Rainfall
In Mount Vernon, in March, it is raining for 12.1 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, there are 147.9 rainfall days, and 31.57" (802mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In March, it is snowing for 6.1 days. Throughout March, 2.01" (51mm) of snow is accumulated. Throughout the year, there are 44 snowfall days, and 18.35" (466mm) of snow is accumulated.Daylight
In Mount Vernon, the average length of the day in March is 11h and 58min.On the first day of the month, sunrise is at 6:39 am and sunset at 5:56 pm CST. On the last day of March, sunrise is at 6:48 am and sunset at 7:30 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 6.3h.UV index
In March, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 3 during March translates into these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Mount Vernon, IA
- Average high temperature in March: 45.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in March: 30.7°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).
Average pressure in March
Mount Vernon, IA
- Average pressure in March: 30.08"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in March
Mount Vernon, IA
- Average wind speed in March: 10.5mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in March
Mount Vernon, IA
- Average humidity in March: 77%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall in March
Mount Vernon, IA
- Average rainfall in March: 2.05"
The wettest month (with the highest rainfall) is May (5").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in March
Mount Vernon, IA
- Average rainfall days in March: 12.1 days
The month with the highest number of rainy days is May (19 days).
The months with the least rainy days are January and February (5.2 days).
Average snowfall in March
Mount Vernon, IA
- Average snowfall in March: 2.01"
The month with the highest snowfall is January (5.79").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in March
Mount Vernon, IA
- Average snowfall days in March: 6.1 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
Mount Vernon, IA
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in March: 6h and 18min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in March
Mount Vernon, IA
- Average sunshine days in March: 13.9 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in March
Mount Vernon, IA
- Average UV index in March: 3
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in March
Mount Vernon, IA
- Average cloud cover in March: 50
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility in March
Mount Vernon, IA
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
