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
Sammamish's weather in April shows a minor rise in the average high-temperature, moving slightly up from March's cool 50°F (10°C) to a moderate 55.8°F (13.2°C). Sammamish's average low-temperature in April is measured at a cold 38.8°F (3.8°C).Humidity
The average relative humidity in April is 80%.Rainfall
In Sammamish, in April, during 14 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. Throughout the year, there are 136.7 rainfall days, and 13.39" (340mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows in Sammamish. During 0.4 snowfall days, in April, Sammamish aggregates 0.12" (3mm) of snow. In Sammamish, during the entire year, snow falls for 9.3 days and aggregates up to 3.27" (83mm) of snow.Daylight
The average length of the day in April in Sammamish is 13h and 41min.On the first day of the month, sunrise is at 6:44 am and sunset at 7:38 pm. On the last day of April, in Sammamish, sunrise is at 5:50 am and sunset at 8:19 pm PDT.
Sunshine
In April, the average sunshine is 7.9h.UV index
In April, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 3 in April suggests the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the average April temperature in Sammamish?
What is the average humidity in April in Sammamish?
How much does it rain in Sammamish in April?
What is the last month it snows in Sammamish?
How many hours of daylight does Sammamish have in April?
When is the sunrise / sunset in April in Sammamish?
How many hours of sunshine does Sammamish have in April?
What is the UV index intensity in April in Sammamish?
Average temperature in April
Sammamish, WA
- Average high temperature in April: 55.8°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 (42.3°F).
- Average low temperature in April: 38.8°F
The month with the highest average low temperature is August (52.2°F).
The coldest month (with the lowest average low temperature) is December (33.6°F).
Average pressure in April
Sammamish, WA
- Average pressure in April: 30.04"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
Sammamish, WA
- Average wind speed in April: 4.3mph
The windiest month (with the highest average wind speed) is January (5mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in April
Sammamish, WA
- Average humidity in April: 80%
The months with the highest relative humidity are January, February and December (85%).
The month with the lowest relative humidity is July (70%).
Average rainfall in April
Sammamish, WA
- Average rainfall in April: 1.22"
The wettest month (with the highest rainfall) is December (1.85").
The driest months (with the least rainfall) are July and August (0.35").
Average rainfall days in April
Sammamish, WA
- Average rainfall days in April: 14 days
The month with the highest number of rainy days is March (14.8 days).
The month with the least rainy days is August (5.2 days).
Average snowfall in April
Sammamish, WA
- Average snowfall in April: 0.12"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Sammamish, WA
- Average snowfall days in April: 0.4 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 and October (0 days).
Average daylight in April /
Average sunshine in April
Sammamish, 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 30min).
- Average sunshine in April: 7h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 4h and 12min).
Average sunshine days in April
Sammamish, WA
- Average sunshine days in April: 13.9 days
The month with the most sunshine days is August (24 days).
The month with the least sunshine days is November (13.5 days).
Average UV index in April
Sammamish, 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
Sammamish, WA
- Average cloud cover in April: 52
The month with the most cloud cover is December (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in April
Sammamish, WA
- 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, March, April, May, October, November and December (5mi).
Sammamish, Washington, USA
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