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
The transition to March introduces an increase in the average high-temperature, shifting from an icy 35.6°F (2°C) in February to a frosty 46°F (7.8°C). Grand Coulee, in the month of March, anticipates a consistent average low-temperature of 32°F (0°C).Humidity
In March, the average relative humidity in Grand Coulee is 74%.Rainfall
In Grand Coulee, in March, during 12.1 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, there are 102.1 rainfall days, and 9.65" (245mm) of precipitation is accumulated.Snowfall
January through April, September through December are months with snowfall. In Grand Coulee, during March, snow falls for 3.2 days and regularly aggregates up to 1.89" (48mm) of snow. In Grand Coulee, during the entire year, snow falls for 33.4 days and aggregates up to 14.65" (372mm) 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 6:35 am and sunset at 5:41 pm PST. On the last day of March, sunrise is at 6:34 am and sunset at 7:25 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 Grand Coulee is 7.3h.UV index
In March, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 3 in March suggests the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. To cut down UV radiation exposure by about half, sport a wide-brim hat. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are March temperatures?
What is the average humidity in March?
How much does it rain in March?
How many days does it snow in March?
What is the average length of the day in March?
When are sunrise and sunset in March?
When does Daylight Saving Time (DST) start in March?
How long on average sun shines in March?
What is the UV index reading in March?
Average temperature in March
Grand Coulee, WA
- Average high temperature in March: 46°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is December (31.6°F).
- Average low temperature in March: 32°F
The month with the highest average low temperature is August (61.3°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).
Average pressure in March
Grand Coulee, WA
- Average pressure in March: 30.01"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).
Average wind speed in March
Grand Coulee, WA
- Average wind speed in March: 6.3mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is January (4.9mph).
Average humidity in March
Grand Coulee, WA
- Average humidity in March: 74%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is August (36%).
Average rainfall in March
Grand Coulee, WA
- Average rainfall in March: 1.06"
The wettest months (with the highest rainfall) are May and December (1.18").
The driest months (with the least rainfall) are July and August (0.2").
Average rainfall days in March
Grand Coulee, WA
- Average rainfall days in March: 12.1 days
The month with the highest number of rainy days is March (12.1 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in March
Grand Coulee, WA
- Average snowfall in March: 1.89"
The month with the highest snowfall is January (4.41").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in March
Grand Coulee, WA
- Average snowfall days in March: 3.2 days
The month with the highest number of snowfall days is December (10.5 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in March /
Average sunshine in March
Grand Coulee, WA
- Average daylight in March: 11h and 5min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in March: 7h and 2min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in March
Grand Coulee, WA
- Average sunshine days in March: 14.7 days
The month with the most sunshine days is August (25.8 days).
The month with the least sunshine days is March (14.7 days).
Average UV index in March
Grand Coulee, WA
- Average UV index in March: 3
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in March
Grand Coulee, WA
- Average cloud cover in March: 43
The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are July and August (Cloud cover 12).
Average visibility in March
Grand Coulee, WA
- Average visibility in March: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (4mi).
Grand Coulee, Washington, USA
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