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 arrival coincides with a temperature rise, moving from March's icy 42.1°F (5.6°C) to a fresh 52.7°F (11.5°C). In the month of April, Shelley experiences an average low-temperature of 34.3°F (1.3°C).Humidity
In April, the average relative humidity is 60%.Rainfall
In April, the rain falls for 15.3 days. Throughout April, 1.34" (34mm) of precipitation is accumulated. In Shelley, during the entire year, the rain falls for 124.6 days and collects up to 12.24" (311mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Shelley, during April, snow falls for 5 days and regularly aggregates up to 1.57" (40mm) of snow. In Shelley, during the entire year, snow falls for 75.1 days and aggregates up to 30.59" (777mm) of snow.Daylight
In April, the average length of the day is 13h and 27min.On the first day of April, sunrise is at 7:08 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:21 am and sunset at 8:29 pm MDT.
Sunshine
In Shelley, Idaho, the average sunshine in April is 9.9h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In April, the maximum UV index of 3 suggests this advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April?
How many days does it rain in April?
How much does it snow in April?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index reading in April?
Average temperature in April
Shelley, ID
- Average high temperature in April: 52.7°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is December (27.9°F).
- Average low temperature in April: 34.3°F
The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is January (14.7°F).
Average pressure in April
Shelley, ID
- Average pressure in April: 29.96"Hg
The month with the highest atmospheric pressure is January (30.3"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in April
Shelley, ID
- Average wind speed in April: 8.9mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is January (6mph).
Average humidity in April
Shelley, ID
- Average humidity in April: 60%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are July and August (36%).
Average rainfall in April
Shelley, ID
- Average rainfall in April: 1.34"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in April
Shelley, ID
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in April
Shelley, ID
- Average snowfall in April: 1.57"
The month with the highest snowfall is January (7.44").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Shelley, ID
- Average snowfall days in April: 5 days
The month with the highest number of snowfall days is December (16.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Shelley, ID
- Average daylight in April: 13h and 3min
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: 9h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 48min).
Average sunshine days in April
Shelley, ID
- Average sunshine days in April: 10.2 days
The month with the most sunshine days is October (18.9 days).
The month with the least sunshine days is March (10 days).
Average UV index in April
Shelley, ID
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Shelley, ID
- Average cloud cover in April: 32
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in April
Shelley, ID
- Average visibility in April: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and February (4mi).
Shelley, Idaho, USA
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