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
Observing a slight rise in April, the average high-temperature shifts from March's cold 35.8°F (2.1°C) to a frosty 44.6°F (7°C). Saint Charles's nighttime temperature in April drops to an average of 26.1°F (-3.3°C).Humidity
In April, the average relative humidity is 75%.Rainfall
In Saint Charles, Idaho, in April, it is raining for 13.4 days, with typically 2.13" (54mm) of accumulated precipitation. In Saint Charles, during the entire year, the rain falls for 105.7 days and collects up to 16.69" (424mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. In Saint Charles, Idaho, in April, snow falls for 11 days, with typically accumulated 8.46" (215mm) of snow. Throughout the year, there are 104.6 snowfall days, and 63.58" (1615mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 23min.On the first day of the month, sunrise is at 7:06 am and sunset at 7:51 pm. On the last day of April, in Saint Charles, sunrise is at 6:21 am and sunset at 8:24 pm MDT.
Sunshine
In April, the average sunshine is 9h.UV index
The average daily maximum UV index in April in Saint Charles, Idaho, is 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the average person.Note: An average UV index of 2 in April transforms into this advice:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in April?
What is the average humidity in April?
How much does it rain in April?
How much does it snow in April?
What is the average length of the day in April in Saint Charles?
What time are sunrise and sunset in April?
How many hours of sunshine does Saint Charles have in April?
What is the UV index reading in April?
Average temperature in April
Saint Charles, ID
- Average high temperature in April: 44.6°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is December (25.5°F).
- Average low temperature in April: 26.1°F
The month with the highest average low temperature is August (49.8°F).
The coldest month (with the lowest average low temperature) is January (8.4°F).
Average pressure in April
Saint Charles, ID
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.29"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in April
Saint Charles, ID
- Average wind speed in April: 5.8mph
The windiest month (with the highest average wind speed) is June (6mph).
The calmest month (with the lowest average wind speed) is January (4.3mph).
Average humidity in April
Saint Charles, ID
- Average humidity in April: 75%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is August (42%).
Average rainfall in April
Saint Charles, ID
- Average rainfall in April: 2.13"
The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is July (0.91").
Average rainfall days in April
Saint Charles, ID
- Average rainfall days in April: 13.4 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in April
Saint Charles, ID
- Average snowfall in April: 8.46"
The month with the highest snowfall is March (12.17").
The months with the least snowfall are July and August (0").
Average snowfall days in April
Saint Charles, ID
- Average snowfall days in April: 11 days
The month with the highest number of snowfall days is February (20 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in April /
Average sunshine in April
Saint Charles, ID
- Average daylight in April: 13h and 2min
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 April: 9h and 0min
The months with the most sunshine are July and August (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in April
Saint Charles, ID
- Average sunshine days in April: 9.4 days
The month with the most sunshine days is July (18.4 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in April
Saint Charles, ID
- Average UV index in April: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in April
Saint Charles, ID
- Average cloud cover in April: 39
The month with the most cloud cover is February (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 13).
Average visibility in April
Saint Charles, ID
- Average visibility in April: 5mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January and February (3mi).
Saint Charles, Idaho, USA
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