March weather forecastSaint Louis, MI
March
Weather in March
March, the first month of the spring in Saint Louis, is an icy month, with an average temperature fluctuating between 40.8°F (4.9°C) and 26.4°F (-3.1°C).Temperature
As Saint Louis enters March, the average high-temperature increases from the a subzero cold 29.5°F (-1.4°C) of February to a cold 40.8°F (4.9°C). During March, Saint Louis's temperature averages to a freezing cold 26.4°F (-3.1°C) at night.Humidity
In March, the average relative humidity is 78%.Rainfall
In March, the rain falls for 10.5 days. Throughout March, 1.38" (35mm) of precipitation is accumulated. In Saint Louis, during the entire year, the rain falls for 141.3 days and collects up to 22.48" (571mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In March, it is snowing for 8 days. Throughout March, 2.2" (56mm) of snow is accumulated. Throughout the year, there are 65.5 snowfall days, and 19.65" (499mm) 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 7:13 am and sunset at 6:27 pm EST. On the last day of March, sunrise is at 7:20 am and sunset at 8:04 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.
Sunshine
The average sunshine in March is 5.5h.UV index
In March, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during March leads to these instructions:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Saint Louis, MI
- Average high temperature in March: 40.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in March: 26.4°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in March
Saint Louis, MI
- Average pressure in March: 30.09"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in March
Saint Louis, MI
- Average wind speed in March: 9.4mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in March
Saint Louis, MI
- Average humidity in March: 78%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in March
Saint Louis, MI
- Average rainfall in March: 1.38"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in March
Saint Louis, MI
- Average rainfall days in March: 10.5 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in March
Saint Louis, MI
- Average snowfall in March: 2.2"
The month with the highest snowfall is January (5.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in March
Saint Louis, MI
- Average snowfall days in March: 8 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in March /
Average sunshine in March
Saint Louis, MI
- 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: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in March
Saint Louis, MI
- Average sunshine days in March: 13.9 days
The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is January (10.3 days).
Average UV index in March
Saint Louis, MI
- Average UV index in March: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in March
Saint Louis, MI
- Average cloud cover in March: 54
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in March
Saint Louis, MI
- Average visibility in March: 6mi
The months with the highest visibility are March, April, May, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, September and December (5mi).
