April weather forecastStar, ID
April
Weather in April
April is a mild spring month in Star, Idaho, with temperature in the range of an average low of 39°F (3.9°C) and an average high of 57.7°F (14.3°C).Temperature
April's onset brings a subtle temperature rise, moving from a cool 50.2°F (10.1°C) in March to a refreshing 57.7°F (14.3°C). During the month of April, the temperature falls to an average of 39°F (3.9°C).Humidity
In April, the average relative humidity is 56%.Rainfall
In Star, in April, during 13.9 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, there are 118.3 rainfall days, and 14.13" (359mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 0.7 snowfall days, in April, Star aggregates 0.16" (4mm) of snow. Throughout the year, there are 29 snowfall days, and 17.4" (442mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 28min.On the first day of the month, sunrise is at 7:25 am and sunset at 8:13 pm. On the last day of April, sunrise is at 6:38 am and sunset at 8:47 pm MDT.
Sunshine
In April, the average sunshine is 9.5h.UV index
In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 3 in April interprets into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Star, ID
- Average high temperature in April: 57.7°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is December (35.1°F).
- Average low temperature in April: 39°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (23.9°F).
Average pressure in April
Star, ID
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is January (30.25"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in April
Star, ID
- Average wind speed in April: 6.8mph
The windiest months (with the highest average wind speed) are March and April (6.8mph).
The calmest month (with the lowest average wind speed) is January (4.8mph).
Average humidity in April
Star, ID
- Average humidity in April: 56%
The month with the highest relative humidity is January (80%).
The months with the lowest relative humidity are July and August (31%).
Average rainfall in April
Star, ID
- Average rainfall in April: 1.3"
The wettest month (with the highest rainfall) is March (2.2").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in April
Star, ID
- Average rainfall days in April: 13.9 days
The month with the highest number of rainy days is March (17 days).
The month with the least rainy days is July (4 days).
Average snowfall in April
Star, ID
- Average snowfall in April: 0.16"
The month with the highest snowfall is December (5.31").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Star, ID
- Average snowfall days in April: 0.7 days
The month with the highest number of snowfall days is December (8.5 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
Star, ID
- Average daylight in April: 13h and 30min
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 30min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in April
Star, ID
- Average sunshine days in April: 14.3 days
The month with the most sunshine days is July (23.1 days).
The month with the least sunshine days is March (12.1 days).
Average UV index in April
Star, ID
- Average UV index in April: 3
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Star, ID
- Average cloud cover in April: 30
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 8).
Average visibility in April
Star, ID
- 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).





