Washington weather in May: Statewide normals and every place, NOAA 1991-2020
In May, Washington's statewide normal high is 64°F and normal low 42°F; normal highs run from 59°F in Long Beach to 77°F in Pasco (NOAA 1991-2020 normals).
- Statewide normal high
- 64°FMay, 1991-2020
- Statewide normal low
- 42°FMay, 1991-2020
- Statewide normal precipitation
- 2.47 inMay
- Warmest place
- 77°Fnormal high, Pasco
- Coolest place
- 59°Fnormal high, Long Beach
Where is Washington warmest and wettest in May?
Pasco has the warmest May afternoons (77°F) and Long Beach the coolest (59°F). Cougar gets the most precipitation (5.17 in) and Richland the least (0.63 in).
Statewide, May averaged 52.6°F in 2021, 48.5°F in 2022, 58.2°F in 2023, 51.2°F in 2024, 53.3°F in 2025, 56.1°F in 2026, against a 1991-2020 normal of 52.9°F.
| Place | High | Low | Precip. | Snow |
|---|---|---|---|---|
| Seattle | 66°F | 49°F | 1.88 | 0.0 |
| Spokane | 67°F | 45°F | 1.55 | 0.1 |
| Tacoma | 65°F | 47°F | 2.08 | – |
| Vancouver | 68°F | 48°F | 2.51 | – |
| Kent | 68°F | 49°F | 2.10 | – |
| Everett | 63°F | 48°F | 2.11 | – |
| Renton | 66°F | 49°F | 1.86 | – |
| Yakima | 74°F | 44°F | 0.74 | 0.0 |
| Bellingham | 64°F | 47°F | 2.23 | – |
| Kennewick | 75°F | 50°F | 0.84 | – |
| Pasco | 77°F | 46°F | 0.71 | – |
| Richland | 74°F | 48°F | 0.63 | – |
| Olympia | 66°F | 43°F | 2.26 | 0.0 |
| Bremerton | 66°F | 47°F | 2.36 | 0.0 |
| Longview | 69°F | 45°F | 3.11 | – |
| Wenatchee | 72°F | 49°F | 0.77 | – |
| Mount Vernon | 65°F | 47°F | – | – |
| Walla Walla | 71°F | 49°F | 2.07 | 0.0 |
| Pullman | 65°F | 44°F | 1.41 | – |
| Moses Lake | 74°F | 45°F | 0.72 | – |
| Hazel Dell | 66°F | 44°F | 2.81 | 0.0 |
| Battle Ground | 67°F | 43°F | 3.36 | 0.0 |
| Arlington | 67°F | 41°F | 3.43 | 0.0 |
| Ellensburg | 71°F | 45°F | 0.92 | – |
| Port Angeles | 60°F | 43°F | 1.17 | – |
| Monroe | 64°F | 44°F | 3.42 | 0.0 |
| Centralia | 67°F | 44°F | 2.44 | – |
| Anacortes | 66°F | 48°F | 1.86 | – |
| Aberdeen | 61°F | 47°F | 3.46 | 0.0 |
| Sunnyside | 73°F | 44°F | 0.75 | – |
| Snoqualmie | 64°F | 46°F | 4.04 | 0.0 |
| Sedro-Woolley | 65°F | 47°F | 3.46 | 0.0 |
| Shelton | 67°F | 44°F | 2.62 | – |
| Port Townsend | 63°F | 47°F | 1.52 | 0.0 |
| Hoquiam | 60°F | 47°F | 2.99 | – |
| Ephrata | 73°F | 48°F | 0.75 | – |
| Selah | 72°F | 43°F | 0.85 | – |
| Quincy | 73°F | 47°F | 0.69 | – |
| Sequim | 62°F | 44°F | 1.16 | 0.0 |
| Prosser | 74°F | 48°F | 0.88 | – |
| Blaine | 64°F | 47°F | 2.57 | 0.0 |
| Buckley | 65°F | 44°F | 3.51 | 0.0 |
| Deer Park | 67°F | 39°F | 1.92 | – |
| Omak | 72°F | 45°F | 1.19 | – |
| Connell | 74°F | 44°F | 0.83 | – |
| Colville | 72°F | 43°F | 1.93 | 0.0 |
| Wapato | 75°F | 47°F | 0.83 | 0.0 |
| Chelan | 72°F | 46°F | 1.05 | 0.0 |
| Goldendale | 69°F | 39°F | 1.04 | 0.0 |
| Elma | 68°F | 44°F | 3.29 | – |
| Forks | 65°F | 43°F | 4.96 | 0.0 |
| Raymond | 63°F | 43°F | 3.64 | 0.0 |
| Leavenworth | 71°F | 40°F | 1.40 | 0.0 |
| Friday Harbor | 64°F | 44°F | 1.14 | – |
| Chewelah | 70°F | 40°F | 2.03 | – |
| Carson | 66°F | 41°F | 3.34 | 0.0 |
| Dayton | 70°F | 45°F | 1.80 | 0.0 |
| Cle Elum | 66°F | 40°F | 1.64 | – |
| Newport | 68°F | 41°F | 2.24 | – |
| Coupeville | 62°F | 47°F | 1.73 | 0.0 |
| Davenport | 65°F | 39°F | 1.37 | 0.0 |
| Long Beach | 59°F | 45°F | 3.55 | 0.0 |
| Ritzville | 69°F | 41°F | 1.19 | 0.0 |
| Entiat | 73°F | 46°F | 0.95 | 0.0 |
| Darrington | 67°F | 44°F | 3.70 | – |
| Pomeroy | 67°F | 44°F | 1.60 | 0.0 |
| McMillin | 64°F | 45°F | 2.97 | 0.0 |
| Coulee Dam | 71°F | 46°F | 1.11 | – |
| Waterville | 67°F | 41°F | 1.07 | – |
| Tonasket | 74°F | 44°F | – | – |
| Easton | 61°F | 39°F | 2.21 | – |
| Republic | 68°F | 37°F | 2.06 | 0.0 |
| Wilbur | 68°F | 39°F | 1.17 | – |
| Odessa | 71°F | 41°F | 1.01 | 0.0 |
| Concrete | 65°F | 45°F | 3.47 | 0.0 |
| Toledo | 68°F | 46°F | – | – |
| Startup | 67°F | 44°F | 4.95 | – |
| Grayland | 60°F | 46°F | 3.25 | 0.0 |
| Winthrop | 71°F | 40°F | 1.13 | 0.0 |
| St. John | 66°F | 45°F | 1.56 | 0.0 |
| Rosalia | 67°F | 42°F | 1.66 | 0.0 |
| Lind | 72°F | 43°F | 0.86 | 0.0 |
| Naselle | 64°F | 44°F | 4.65 | 0.0 |
| Quilcene | 67°F | 44°F | – | – |
| Harrington | 69°F | 40°F | 1.13 | 0.0 |
| Northport | 70°F | 41°F | 2.12 | 0.0 |
| LaCrosse | 72°F | 42°F | 1.26 | 0.0 |
| Glenwood | 69°F | 36°F | 1.41 | 0.0 |
| Humptulips | 61°F | 42°F | 4.54 | 0.0 |
| Baring | 66°F | 44°F | 5.02 | 0.0 |
| Hartline | 70°F | 44°F | 1.09 | – |
| Hatton | 73°F | 45°F | 0.93 | 0.0 |
| Packwood | 67°F | 44°F | 2.87 | 0.0 |
| Bickleton | 62°F | 41°F | 1.33 | 0.6 |
| Methow | 73°F | 46°F | – | – |
| Cougar | 68°F | 46°F | 5.17 | 0.0 |
| Boundary Dam | 67°F | 41°F | 2.60 | 0.0 |
| Cedar Lake | 59°F | 42°F | 6.62 | 0.2 |
| Chief Joseph Dam | 74°F | 46°F | 0.92 | 0.0 |
| Clearbrook | 66°F | 45°F | 3.17 | 0.0 |
| Clearwater | 64°F | 43°F | 5.04 | – |
| Cushman Powerhouse #2 | 65°F | 46°F | 3.03 | 0.0 |
| Diablo Dam | 66°F | 44°F | 2.71 | 0.0 |
| Eltopia (8 mi WSW) | 73°F | 46°F | 0.91 | – |
| Elwha Ranger Station | 63°F | 43°F | 1.91 | 0.0 |
| Glenoma | 67°F | 42°F | – | – |
| Grays River Hatchery | 67°F | 43°F | 4.36 | 0.0 |
| Holden Village | 60°F | 37°F | 1.39 | 0.2 |
| Ice Harbor Dam | 74°F | 48°F | 1.15 | 0.0 |
| Landsburg | 66°F | 44°F | 3.87 | – |
| Longmire Rainier NPS | 60°F | 37°F | 4.75 | 2.1 |
| Matlock (8 mi S) | 67°F | 44°F | 3.81 | 0.0 |
| Mayfield Power Plant | 69°F | 43°F | 3.81 | 0.0 |
| Mazama | 68°F | 41°F | 1.13 | 0.0 |
| McNary Dam | 73°F | 49°F | 0.81 | – |
| Mount Adams Ranger Station | 68°F | 40°F | – | – |
| Moxee City (10 mi E) | 72°F | 43°F | 0.86 | 0.0 |
| Mud Mountain Dam | 63°F | 44°F | 4.99 | – |
| Newhalem | 67°F | 46°F | 3.01 | 0.0 |
| Olga (2 mi SE) | 62°F | 48°F | 1.68 | 0.0 |
| Palmer (3 mi ESE) | 64°F | 45°F | 5.87 | 0.0 |
| Plain | 67°F | 39°F | 1.31 | 0.1 |
| Priest Rapids Dam | 75°F | 53°F | 0.55 | – |
| Quillayute State Airport | 60°F | 43°F | 4.25 | – |
| Quinault (4 mi NE) | 63°F | 43°F | 6.91 | – |
| Rainier Paradise Ranger Station | 48°F | 33°F | 5.08 | – |
| Ross Dam | 65°F | 45°F | 2.06 | 0.0 |
| Sagemoor | 75°F | 44°F | 0.83 | – |
| Satus Pass (2 mi SSW) | 67°F | 39°F | 1.13 | – |
| Seattle Boeing Field | 67°F | 49°F | 1.98 | – |
| Seattle Sand Point Weather Office | 65°F | 48°F | 2.16 | 0.0 |
| Skamania Fish Hatchery | 67°F | 43°F | 5.19 | 0.0 |
| Smyrna | 77°F | 46°F | – | – |
| Snowden | 63°F | 40°F | – | – |
| Stampede Pass | 53°F | 38°F | 4.65 | – |
| Stehekin (4 mi NW) | 69°F | 44°F | 1.07 | 0.0 |
| Tacoma #1 | 67°F | 49°F | 2.00 | – |
| The Dalles Municipal Airport | 74°F | 49°F | 0.76 | – |
| Tolt S Fork Reservoir | 61°F | 44°F | 6.94 | 0.4 |
| Upper Baker Dam | 64°F | 42°F | 4.52 | 0.0 |
| Whidbey Island Naval Air Station | 62°F | 48°F | 1.69 | 0.0 |
| Whitman Mission | 73°F | 44°F | 1.80 | – |
Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.