Contents
- Weather in March
- Frequently asked questions
- Average temperature in March
- Average pressure in March
- Average wind speed in March
- Average humidity in March
- Average rainfall in March
- Average rainfall days in March
- Average snowfall in March
- Average snowfall days in March
- Average daylight in March
- Average sunshine in March
- Average sunshine days in March
- Average UV index in March
- Average cloud cover in March
- Average visibility in March
Weather in March
Temperature
In Mercer Island, the average high-temperature in March is almost the same as in February - a fresh 50.5°F (10.3°C). In March, in Mercer Island, the average low-temperature is 36.9°F (2.7°C).Humidity
In March, the average relative humidity in Mercer Island, Washington, is 83%.Rainfall
In Mercer Island, it is raining for 13.7 days, with typically 1.02" (26mm) of accumulated precipitation. Throughout the year, in Mercer Island, there are 119.1 rainfall days, and 11.97" (304mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Mercer Island. March is the last month it regularly snows. During 1 snowfall days, in March, Mercer Island aggregates 0.31" (8mm) of snow. In Mercer Island, during the entire year, snow falls for 7 days and aggregates up to 3.27" (83mm) of snow.Daylight
In Mercer Island, the average length of the day in March is 11h and 57min.On the first day of the month, sunrise is at 6:48 am and sunset at 5:53 pm PST. On the last day of March, sunrise is at 6:49 am and sunset at 7:36 pm PDT.
Note: On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from PST to PDT. Daylight Saving Time lasts until Sunday, November 5. 2023, at 2:00 am; consequently, the time zone reverts from PDT to PST.
Sunshine
In March, the average sunshine is 6.3h.UV index
In March, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 3 in March transform into the following instructions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
FAQ
What is the temperature in March in Mercer Island?
What is the average humidity in March in Mercer Island?
How much does it rain in Mercer Island in March?
What is the last month it snows in Mercer Island?
How many hours of daylight does Mercer Island have in March?
What time are sunrise and sunset in March in Mercer Island?
When does Daylight Saving Time (DST) start in March in Mercer Island?
How long on average sun shines in March in Mercer Island?
How high is the UV index in March in Mercer Island?
Average temperature in March
Mercer Island, WA
- Average high temperature in March: 50.5°F
The warmest month (with the highest average high temperature) is August (76.6°F).
The month with the lowest average high temperature is December (42.8°F).
- Average low temperature in March: 36.9°F
The month with the highest average low temperature is August (53.4°F).
The coldest month (with the lowest average low temperature) is February (34.5°F).
Average pressure in March
Mercer Island, 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
Mercer Island, WA
- Average wind speed in March: 5.1mph
The windiest month (with the highest average wind speed) is March (5.1mph).
The calmest month (with the lowest average wind speed) is August (3.4mph).
Average humidity in March
Mercer Island, WA
- Average humidity in March: 83%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is July (69%).
Average rainfall in March
Mercer Island, WA
- Average rainfall in March: 1.02"
The wettest month (with the highest rainfall) is December (2.01").
The driest month (with the least rainfall) is July (0.24").
Average rainfall days in March
Mercer Island, WA
- Average rainfall days in March: 13.7 days
The month with the highest number of rainy days is March (13.7 days).
The month with the least rainy days is August (4.1 days).
Average snowfall in March
Mercer Island, WA
- Average snowfall in March: 0.31"
The month with the highest snowfall is February (1.77").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in March
Mercer Island, WA
- Average snowfall days in March: 1 days
The month with the highest number of snowfall days is February (3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in March /
Average sunshine in March
Mercer Island, WA
- Average daylight in March: 11h and 57min
The month with the longest days is June (Average daylight: 15h and 55min).
The month with the shortest days is December (Average daylight: 8h and 31min).
- Average sunshine in March: 6h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average sunshine days in March
Mercer Island, WA
- Average sunshine days in March: 15.8 days
The month with the most sunshine days is August (24.9 days).
The month with the least sunshine days is February (13.8 days).
Average UV index in March
Mercer Island, WA
- Average UV index in March: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in March
Mercer Island, WA
- Average cloud cover in March: 53
The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in March
Mercer Island, WA
- Average visibility in March: 5mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March, April, October, November and December (5mi).
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