Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April sees a temperature increase, moving from a wintry 40.8°F (4.9°C) in March to a fresh 52.9°F (11.6°C). Saint Louis experiences an average nighttime temperature of 36.3°F (2.4°C) in the month of April.Humidity
The least humid month is April, with an average relative humidity of 75%.Rainfall
In April, in Saint Louis, the rain falls for 14.5 days. Throughout April, 2.44" (62mm) 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
January through April, October through December are months with snowfall. April is the last month it regularly snows. During 3.3 snowfall days, in April, Saint Louis aggregates 1.65" (42mm) of snow. In Saint Louis, during the entire year, snow falls for 65.5 days and aggregates up to 19.65" (499mm) of snow.Daylight
In April, the average length of the day is 13h and 27min.On the first day of April, sunrise is at 7:18 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 8:39 pm EDT.
Sunshine
The average sunshine in April in Saint Louis, Michigan, is 7h.UV index
In Saint Louis, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In April, the UV index of 3 transforms into the following advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Experience reduced UV exposure by about half when donning a wide-brim hat. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What is the average April temperature in Saint Louis?
What is the least humid month in Saint Louis?
What is the average humidity in April in Saint Louis?
How many days does it rain in April in Saint Louis?
What is the last month it snows in Saint Louis?
How many hours of daylight does Saint Louis have in April?
When is the sunrise / sunset in April in Saint Louis?
How many hours of sunshine does Saint Louis have in April?
What is the UV index reading in April in Saint Louis?
Average temperature in April
Saint Louis, MI
- Average high temperature in April: 52.9°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 April: 36.3°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 April
Saint Louis, MI
- Average pressure in April: 29.96"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 April
Saint Louis, MI
- Average wind speed in April: 9.9mph
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 April
Saint Louis, MI
- Average humidity in April: 75%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in April
Saint Louis, MI
- Average rainfall in April: 2.44"
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 April
Saint Louis, MI
- Average rainfall days in April: 14.5 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 April
Saint Louis, MI
- Average snowfall in April: 1.65"
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 April
Saint Louis, MI
- Average snowfall days in April: 3.3 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 April /
Average sunshine in April
Saint Louis, MI
- Average daylight in April: 13h and 2min
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 April: 7h and 0min
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 April
Saint Louis, MI
- Average sunshine days in April: 12.3 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 April
Saint Louis, MI
- Average UV index in April: 3
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 April
Saint Louis, MI
- Average cloud cover in April: 50
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 April
Saint Louis, MI
- Average visibility in April: 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).
Saint Louis, Michigan, USA
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