Average Precipitation for Washington in March





The tables below give monthly averages for rainfall plus snowfall during March at cities and other locations in Washington.

Each place has a total for the amount of precipitation it usually receives this month. There is also information on the number of days with wet weather. That includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The precipitation totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

You can jump to a separate table for each region of the state: Olympic Peninsula & West Coast, San Juan Islands & Puget Sound, Cascade Mountains and Eastern Washington.

Olympic Peninsula & West Coast

Average monthly precipitation in March
Days Place Inches Milli­metres
22 Aberdeen 9.8 248
22 Clearwater 13.1 331
23 Forks 14.3 363
14 Friday Harbor, San Juan Island 1.4 34
23 Grayland 8.4 214
24 Long Beach 8.7 221
16 Port Angeles 2.4 60

San Juan Islands, Puget Sound & South

March averages for total precipitation
Days Place Inches Milli­metres
17 Anacortes 2.4 61
18 Bellingham 3.4 85
19 Bremerton 6.4 162
20 Centralia 4.4 112
19 Everett 3.6 92
21 Longview 4.9 125
16 Oak Harbor, Whidbey Island 1.7 43
14 Olga, Orcas Island 2.6 67
19 Olympia 5.7 144
15 Port Townsend 1.9 47
17 Seattle 4.2 106
20 Shelton 7.2 184
18 Tacoma 4.4 111
18 Vancouver 4.4 113

Cascade Mountains

Average amount of rain and snow in March
Days Place Inches Milli­metres
21 Baker Lake Dam 10.4 265
20 Baring 11.9 302
18 Ross Dam 6.4 162

Eastern Washington State

Precipitation totals for March
Days Place Inches Milli­metres
12 Boundary Dam 2.4 60
7 Chelan 1.1 28
10 Coulee Dam 1.1 27
8 Kennewick 0.7 17
9 Leavenworth 2.5 62
7 Moses Lake 0.7 19
12 Pullman 2.1 52
12 Spokane 1.8 46
12 Walla Walla 2.1 54
6 Wenatchee 0.7 19
8 Winthrop 1.2 31
7 Yakima 0.6 16
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Washington Precipitation
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