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 onset brings a minor rise in the average high-temperature, moving from a frosty 49.8°F (9.9°C) in March to a cool 55.2°F (12.9°C). In Summit, the average low-temperature during the month of April is a wintry 38.3°F (3.5°C).Humidity
In Summit, the average relative humidity in April is 80%.Rainfall
In April, the rain falls for 18.4 days. Throughout April, 2.68" (68mm) of precipitation is accumulated. In Summit, during the entire year, the rain falls for 183.4 days and collects up to 32.48" (825mm) of precipitation.Snowfall
In Summit, snow does not fall in April through October.Daylight
In Summit, the average length of the day in April is 13h and 39min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:39 pm. On the last day of April, sunrise is at 5:53 am and sunset at 8:19 pm PDT.
Sunshine
In Summit, the average sunshine in April is 8h.UV index
In Summit, Washington, 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 radiation for the average person.Note: In April, a daily maximum UV index of 3 leads to the following instructions:
Take precautions - Protection against skin and eye damage is obliged. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. During bright days, sunglasses that offer UVA and UVB defense are recommended. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Summit?
What is the average humidity in April in Summit?
How much does it rain in Summit in April?
When it does not snow in Summit?
Does it snow in Summit in April?
How many hours of daylight does Summit have in April?
When are sunrise and sunset in April in Summit?
How long on average sun shines in April in Summit?
What is the UV index reading in April in Summit?
Average temperature in April
Summit, WA
- Average high temperature in April: 55.2°F
The warmest month (with the highest average high temperature) is August (76.5°F).
The month with the lowest average high temperature is December (42.8°F).
- Average low temperature in April: 38.3°F
The month with the highest average low temperature is August (51.6°F).
The coldest month (with the lowest average low temperature) is December (32.7°F).
Average pressure in April
Summit, WA
- Average pressure in April: 30.05"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in April
Summit, WA
- Average wind speed in April: 4.4mph
The windiest month (with the highest average wind speed) is March (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in April
Summit, WA
- Average humidity in April: 80%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is July (69%).
Average rainfall in April
Summit, WA
- Average rainfall in April: 2.68"
The wettest month (with the highest rainfall) is December (4.92").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in April
Summit, WA
- Average rainfall days in April: 18.4 days
The month with the highest number of rainy days is March (21 days).
The month with the least rainy days is August (6.2 days).
Average snowfall in April
Summit, WA
- Average snowfall in April: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in April
Summit, WA
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is February (2.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Summit, WA
- 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 36min).
- Average sunshine in April: 8h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in April
Summit, WA
- Average sunshine days in April: 9.3 days
The month with the most sunshine days is August (22.3 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in April
Summit, WA
- Average UV index in April: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in April
Summit, WA
- Average cloud cover in April: 52
The months with the most cloud cover are January and December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in April
Summit, WA
- Average visibility in April: 5mi
The months with the highest visibility are July and August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, September, October, November and December (5mi).
Summit, Washington, USA
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