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 brings a slight increase in the average high-temperature, progressing from a frosty 46.8°F (8.2°C) in March to a cool 54.5°F (12.5°C). An average low-temperature of 36°F (2.2°C) is observed during April nights in Princeton.Humidity
In April, the average relative humidity is 72%.Rainfall
In Princeton, during April, the rain falls for 18.1 days and regularly aggregates up to 2.01" (51mm) of precipitation. In Princeton, during the entire year, the rain falls for 143.2 days and collects up to 20.51" (521mm) of precipitation.Snowfall
Months with snowfall in Princeton are January through May, September through December. In Princeton, Idaho, in April, snow falls for 4.1 days, with typically accumulated 1.73" (44mm) of snow. In Princeton, during the entire year, snow falls for 60.2 days and aggregates up to 47.24" (1200mm) of snow.Daylight
The average length of the day in April is 13h and 38min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:17 pm. On the last day of April, sunrise is at 5:31 am and sunset at 7:56 pm PDT.
Sunshine
In April, the average sunshine is 9h.UV index
In Princeton, Idaho, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: A maximum high UV index of 3 in April translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Princeton in April?
What is the average humidity in April in Princeton?
How many days does it rain in April in Princeton?
How many days does it snow in April in Princeton?
How many hours of daylight does Princeton have in April?
When is the sunrise / sunset in April in Princeton?
How many hours of sunshine does Princeton have in April?
How high is the UV index in April in Princeton?
Average temperature in April
Princeton, ID
- Average high temperature in April: 54.5°F
The warmest month (with the highest average high temperature) is August (83.7°F).
The month with the lowest average high temperature is December (34°F).
- Average low temperature in April: 36°F
The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is December (24.1°F).
Average pressure in April
Princeton, ID
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is January (30.2"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in April
Princeton, ID
- Average wind speed in April: 6.3mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July, August and September (4.8mph).
Average humidity in April
Princeton, ID
- Average humidity in April: 72%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (40%).
Average rainfall in April
Princeton, ID
- Average rainfall in April: 2.01"
The wettest month (with the highest rainfall) is December (2.68").
The driest months (with the least rainfall) are July and August (0.47").
Average rainfall days in April
Princeton, ID
- Average rainfall days in April: 18.1 days
The month with the highest number of rainy days is April (18.1 days).
The months with the least rainy days are July and August (5.9 days).
Average snowfall in April
Princeton, ID
- Average snowfall in April: 1.73"
The month with the highest snowfall is January (12.56").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Princeton, ID
- Average snowfall days in April: 4.1 days
The month with the highest number of snowfall days is December (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Princeton, ID
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in April: 9h and 0min
The month with the most sunshine is August (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 4h and 30min).
Average sunshine days in April
Princeton, ID
- Average sunshine days in April: 9.3 days
The month with the most sunshine days is July (23.3 days).
The month with the least sunshine days is February (9.2 days).
Average UV index in April
Princeton, ID
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in April
Princeton, ID
- Average cloud cover in April: 41
The month with the most cloud cover is February (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in April
Princeton, 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 December (4mi).
Princeton, Idaho, USA
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