March weather forecastRio, IL
March
Weather in March
March, the first month of the spring in Rio, is a chilly month, with an average temperature fluctuating between 48°F (8.9°C) and 32.9°F (0.5°C).Temperature
The transition to March introduces an increase in the average high-temperature, shifting from an icy 34.7°F (1.5°C) in February to a chilly 48°F (8.9°C). An average low-temperature of 32.9°F (0.5°C) is observed in Rio, Illinois, during the March nights.Humidity
In Rio, the average relative humidity in March is 76%.Rainfall
In Rio, in March, during 9.3 rainfall days, 0.75" (19mm) of precipitation is typically accumulated. Throughout the year, there are 109.9 rainfall days, and 11.14" (283mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Rio. In Rio, during March, snow falls for 3.2 days and regularly aggregates up to 0.47" (12mm) of snow. In Rio, during the entire year, snow falls for 28 days and aggregates up to 4.53" (115mm) of snow.Daylight
In March, the average length of the day in Rio, Illinois, is 11h and 58min.On the first day of the month, sunrise is at 6:34 am and sunset at 5:53 pm CST. On the last day of March, sunrise is at 6:45 am and sunset at 7:26 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 in Rio, Illinois, is 6.4h.UV index
In March, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In March, a regular UV index of 3 translates into these guidelines:
Guard yourself - Avoiding sunburn is suggested. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Rio, IL
- Average high temperature in March: 48°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in March: 32.9°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in March
Rio, IL
- 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 (29.91"Hg).
Average wind speed in March
Rio, IL
- Average wind speed in March: 10.6mph
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 (6.8mph).
Average humidity in March
Rio, IL
- Average humidity in March: 76%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in March
Rio, IL
- Average rainfall in March: 0.75"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are January and December (0.47").
Average rainfall days in March
Rio, IL
- Average rainfall days in March: 9.3 days
The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in March
Rio, IL
- Average snowfall in March: 0.47"
The month with the highest snowfall is January (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in March
Rio, IL
- Average snowfall days in March: 3.2 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
Rio, IL
- Average daylight in March: 12h and 0min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in March: 6h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in March
Rio, IL
- Average sunshine days in March: 17.5 days
The month with the most sunshine days is December (21.6 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in March
Rio, IL
- Average UV index in March: 3
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in March
Rio, IL
- Average cloud cover in March: 49
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in March
Rio, IL
- 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).
