March weather forecastWest Lake Sammamish, WA
March
Weather in March
The first month of the spring, March, is a fresh month in West Lake Sammamish, Washington, with an average temperature varying between 50°F (10°C) and 36.1°F (2.3°C).Temperature
In March, West Lake Sammamish experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 45.1°F (7.3°C) in February to a fresh 50°F (10°C). March witnesses an average nighttime temperature of 36.1°F (2.3°C).Humidity
The average relative humidity in March is 83%.Rainfall
In West Lake Sammamish, in March, it is raining for 14.8 days, with typically 1.3" (33mm) of accumulated precipitation. 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. In West Lake Sammamish, Washington, in March, snow falls for 2 days, with typically accumulated 0.63" (16mm) of snow. In West Lake 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 March is 11h and 57min.On the first day of the month, sunrise is at 6:47 am and sunset at 5:54 pm PST. On the last day of March, sunrise is at 6:47 am and sunset at 7:37 pm PDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from PDT to PST.
Sunshine
The average sunshine in March in West Lake Sammamish is 6.1h.UV index
In West Lake Sammamish, Washington, the average daily maximum UV index in March is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 3 in March translates into these instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
West Lake Sammamish, WA
- Average high temperature in March: 50°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 March: 36.1°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 March
West Lake Sammamish, WA
- Average pressure in March: 30.01"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 March
West Lake Sammamish, WA
- Average wind speed in March: 4.8mph
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 March
West Lake Sammamish, WA
- Average humidity in March: 83%
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 March
West Lake Sammamish, WA
- Average rainfall in March: 1.3"
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 March
West Lake Sammamish, WA
- Average rainfall days in March: 14.8 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 March
West Lake Sammamish, WA
- Average snowfall in March: 0.63"
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 March
West Lake Sammamish, WA
- Average snowfall days in March: 2 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 March /
Average sunshine in March
West Lake Sammamish, WA
- Average daylight in March: 11h and 54min
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 March: 6h and 6min
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 March
West Lake Sammamish, WA
- Average sunshine days in March: 14.3 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 March
West Lake Sammamish, WA
- Average UV index in March: 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 March
West Lake Sammamish, WA
- Average cloud cover in March: 54
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 March
West Lake Sammamish, WA
- Average visibility in March: 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).





