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 is noted with a slight increase in the average high-temperature, moving from a wintry 39.7°F (4.3°C) in March to a frosty 48°F (8.9°C). In Silverton, the April nights cool down to an average low of 29.5°F (-1.4°C).Humidity
In Silverton, the average relative humidity in April is 80%.Rainfall
In Silverton, in April, during 17.3 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. Throughout the year, there are 128.7 rainfall days, and 24.65" (626mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Silverton. In April, in Silverton, it is snowing for 6.1 days. Throughout April, 3.7" (94mm) of snow is accumulated. In Silverton, during the entire year, snow falls for 74.7 days and aggregates up to 63.27" (1607mm) of snow.Daylight
In April, the average length of the day is 13h and 40min.On the first day of April, sunrise is at 6:20 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 7:54 pm PDT.
Sunshine
The average sunshine in April is 7.6h.UV index
In April, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 2 in April translates into the following instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. To guard against the harmful effects of the Sun, minimize exposure during midday. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
What are April temperatures in Silverton?
What is the average humidity in April in Silverton?
How much does it rain in Silverton in April?
How many days does it snow in April in Silverton?
What is the average length of the day in April in Silverton?
When is the sunrise / sunset in April in Silverton?
How long on average sun shines in April in Silverton?
What is the UV index reading in April in Silverton?
Average temperature in April
Silverton, ID
- Average high temperature in April: 48°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is December (30°F).
- Average low temperature in April: 29.5°F
The month with the highest average low temperature is August (47.8°F).
The coldest month (with the lowest average low temperature) is December (19.2°F).
Average pressure in April
Silverton, ID
- Average pressure in April: 30"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The months with the lowest atmospheric pressure are June and August (29.93"Hg).
Average wind speed in April
Silverton, ID
- Average wind speed in April: 4.9mph
The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest months (with the lowest average wind speed) are September and December (4.2mph).
Average humidity in April
Silverton, ID
- Average humidity in April: 80%
The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in April
Silverton, ID
- Average rainfall in April: 2.48"
The wettest month (with the highest rainfall) is January (3.07").
The driest month (with the least rainfall) is July (0.51").
Average rainfall days in April
Silverton, ID
- Average rainfall days in April: 17.3 days
The month with the highest number of rainy days is April (17.3 days).
The month with the least rainy days is July (6 days).
Average snowfall in April
Silverton, ID
- Average snowfall in April: 3.7"
The month with the highest snowfall is January (16.5").
The months with the least snowfall are June, July and August (0").
Average snowfall days in April
Silverton, ID
- Average snowfall days in April: 6.1 days
The month with the highest number of snowfall days is December (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in April /
Average sunshine in April
Silverton, ID
- Average daylight in April: 13h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in April: 7h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in April
Silverton, ID
- Average sunshine days in April: 9.4 days
The month with the most sunshine days is July (23.7 days).
The month with the least sunshine days is March (9.3 days).
Average UV index in April
Silverton, ID
- Average UV index in April: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in April
Silverton, ID
- Average cloud cover in April: 52
The months with the most cloud cover are January, February and December (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in April
Silverton, ID
- Average visibility in April: 5mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
Silverton, Idaho, USA
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