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
As Yelm transitions into April, the average high-temperature is observed to slightly rise from a fresh 50.7°F (10.4°C) in March to a mild 56.3°F (13.5°C). Throughout the April nights, Yelm encounters a low-temperature of 37.8°F (3.2°C).Humidity
The average relative humidity in April is 81%.Rainfall
In Yelm, in April, during 18.8 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, there are 178.1 rainfall days, and 33.82" (859mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Yelm, Washington. April is the last month it regularly snows in Yelm, Washington. During 0.3 snowfall days, in April, Yelm aggregates 0.04" (1mm) of snow. Throughout the year, in Yelm, there are 9 snowfall days, and 6.38" (162mm) of snow is accumulated.Daylight
In Yelm, the average length of the day in April is 13h and 38min.On the first day of April in Yelm, Washington, sunrise is at 6:47 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 8:20 pm PDT.
Sunshine
In Yelm, the average sunshine in April is 7.4h.UV index
In April, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 3 in April interprets into the following advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
What are April temperatures in Yelm?
What is the average humidity in April in Yelm?
How much does it rain in Yelm in April?
What is the last month it snows in Yelm?
How many hours of daylight does Yelm have in April?
When are sunrise and sunset in April in Yelm?
How many hours of sunshine does Yelm have in April?
How high is the UV index in April in Yelm?
Average temperature in April
Yelm, WA
- Average high temperature in April: 56.3°F
The warmest month (with the highest average high temperature) is August (77.5°F).
The month with the lowest average high temperature is December (43°F).
- Average low temperature in April: 37.8°F
The month with the highest average low temperature is August (50.5°F).
The coldest month (with the lowest average low temperature) is December (32.9°F).
Average pressure in April
Yelm, WA
- Average pressure in April: 30.06"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in April
Yelm, WA
- Average wind speed in April: 4.5mph
The windiest month (with the highest average wind speed) is January (4.9mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in April
Yelm, WA
- Average humidity in April: 81%
The months with the highest relative humidity are January, February, November and December (87%).
The month with the lowest relative humidity is July (70%).
Average rainfall in April
Yelm, WA
- Average rainfall in April: 2.8"
The wettest month (with the highest rainfall) is December (5.28").
The driest month (with the least rainfall) is July (0.39").
Average rainfall days in April
Yelm, WA
- Average rainfall days in April: 18.8 days
The month with the highest number of rainy days is March (20.2 days).
The month with the least rainy days is August (5.3 days).
Average snowfall in April
Yelm, WA
- Average snowfall in April: 0.04"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Yelm, WA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (3.2 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
Yelm, WA
- 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: 7h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 4h and 0min).
Average sunshine days in April
Yelm, WA
- Average sunshine days in April: 9.3 days
The month with the most sunshine days is August (23.4 days).
The months with the least sunshine days are February and March (8.8 days).
Average UV index in April
Yelm, WA
- Average UV index in April: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Yelm, WA
- Average cloud cover in April: 55
The months with the most cloud cover are January, February, March and December (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in April
Yelm, WA
- Average visibility in April: 5mi
The months with the highest visibility are April, May, June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, November and December (4mi).
Yelm, Washington, USA
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