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's onset brings a temperature rise, moving from a cool 54.1°F (12.3°C) in March to a refreshing 65.3°F (18.5°C). Saint Charles experiences an average low-temperature of 48°F (8.9°C) in month of April.Humidity
The average relative humidity in April is 75%.Rainfall
In Saint Charles, in April, during 14.8 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. Throughout the year, there are 141.9 rainfall days, and 27.68" (703mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Saint Charles, the average length of the day in April is 13h and 14min.On the first day of April in Saint Charles, sunrise is at 6:45 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 7:53 pm CDT.
Sunshine
In Saint Charles, the average sunshine in April is 8.6h.UV index
The average daily maximum UV index in April in Saint Charles is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 5 during April leads to these instructions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
What are April temperatures in Saint Charles?
What is the average humidity in April in Saint Charles?
How many days does it rain in April in Saint Charles?
When it does not snow in Saint Charles?
Does it snow in Saint Charles in April?
What is the average length of the day in April in Saint Charles?
When are sunrise and sunset in April in Saint Charles?
How long on average sun shines in April in Saint Charles?
What is the UV index reading in April in Saint Charles?
Average temperature in April
Saint Charles, MO
- Average high temperature in April: 65.3°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in April: 48°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in April
Saint Charles, MO
- Average pressure in April: 29.94"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Saint Charles, MO
- Average wind speed in April: 8.9mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in April
Saint Charles, MO
- Average humidity in April: 75%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (70%).
Average rainfall in April
Saint Charles, MO
- Average rainfall in April: 3.19"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in April
Saint Charles, MO
- Average rainfall days in April: 14.8 days
The month with the highest number of rainy days is July (16.3 days).
The months with the least rainy days are February and December (7.3 days).
Average snowfall in April
Saint Charles, MO
- Average snowfall in April: 0"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Saint Charles, MO
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Saint Charles, MO
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in April
Saint Charles, MO
- Average sunshine days in April: 13.2 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in April
Saint Charles, MO
- Average UV index in April: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in April
Saint Charles, MO
- Average cloud cover in April: 41
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
Saint Charles, MO
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Saint Charles, Missouri, USA
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