Precipitation
Some parts of Coastal Washington get a LOT of rain. Forks is the wettest town in the state with nearly 120 in/yr of precipitation and Centralia holds the record for most rainy days in a row: 58 days straight in 1961.(Source)
Other parts are fairly dry. These facts are not unrelated. Forks is on the rainy side of the Olympic mountain range and Sequim is in the rain shadow of the same. The mountains squeeze rain out of clouds as they force the clouds to go up and over the mountains, causing it to rain a lot on one side and relatively little on the other.
If you like maps, there is a terrific map of average annual rainfall for the state HERE.
The above data is taken from bestplaces.net in part because Wikipedia is not consistent. Sometimes it lists climate data for a city and sometimes it doesn't.
BestPlaces.net also provided readily legible figures for rainfall and snowfall rather than one overarching number for precipitation. Breaking it down to rainfall and snowfall will be more meaningful information for most people.
Some additional resources:
Other parts are fairly dry. These facts are not unrelated. Forks is on the rainy side of the Olympic mountain range and Sequim is in the rain shadow of the same. The mountains squeeze rain out of clouds as they force the clouds to go up and over the mountains, causing it to rain a lot on one side and relatively little on the other.
If you like maps, there is a terrific map of average annual rainfall for the state HERE.
Alphabetical
Annual average rainfall and snowfall in inches. Data taken from BestPlaces.net.- Aberdeen: 77 total (76 rain; 1 snow)
- Bainbridge Island: 48 total (44 rain; 4 snow)
- Bremerton: 52 total (49 rain; 3 snow)
- Castle Rock: 64 total (61 rain; 3 snow)
- Cathlamet (CS Wahkiakum): 83 total (79 rain; 4 snow)
- Centralia: 56 total (50 rain; 6 snow)
- Chehalis (CS Lewis): 54 total (52 rain; 2 snow)
- Cosmopolis: 76 total (74 rain; 2 snow)
- Elma: 77 total (74 rain; 3 snow)
- Forks: 117 total (110 rain; 7 snow)
- Hoquiam: 90 total (88 rain; 2 snow)
- Ilwaco: 88 total (86 rain; 2 snow)
- Kelso (CS Cowlitz): 64 total (60 rain; 4 snow)
- Long Beach: 87 total (86 rain; 1 snow)
- Longview: 60 total (56 rain; 4 snow)
- McCleary: 79 total (74 rain; 5 snow)
- Montesano (CS Grays Harbor): 82 total (80 rain; 2 snow)
- Oakville: 55 total (52 rain; 3 snow)
- Ocean Shores: 76 total (75 rain; 1 snow)
- Olympia (CS Thurston; State Capital): 59 total (53 rain; 6 snow)
- Port Angeles (CS Clallum): 39 total (36 rain; 3 snow)
- Port Orchard (CS Kitsap): 51 total (47 rain; 4 snow)
- Port Townsend (CS Jefferson): 25 total (23 rain; 2 snow)
- Poulsbo: 44 total (41 rain; 3 snow)
- Raymond: 100 total (98 rain; 2 snow)
- Sequim: 25 total (23 rain; 2 snow)
- Shelton (CS Mason): 66 total (62 rain; 4 snow)
- South Bend (CS Pacific): 91 total (90 rain; 1 snow)
- Tumwater: 56 total (50 rain; 6 snow)
- Westport: 77 total (76 rain; 1 snow)
By Average Annual Precipitation in Inches
- Forks: 117 total (110 rain; 7 snow)
- Raymond: 100 total (98 rain; 2 snow)
- South Bend (CS Pacific): 91 total (90 rain; 1 snow)
- Hoquiam: 90 total (88 rain; 2 snow)
- Ilwaco: 88 total (86 rain; 2 snow)
- Long Beach: 87 total (86 rain; 1 snow)
- Cathlamet (CS Wahkiakum): 83 total (79 rain; 4 snow)
- Montesano (CS Grays Harbor): 82 total (80 rain; 2 snow)
- McCleary: 79 total (74 rain; 5 snow)
- Aberdeen: 77 total (76 rain; 1 snow)
- Elma: 77 total (74 rain; 3 snow)
- Westport: 77 total (76 rain; 1 snow)
- Cosmopolis: 76 total (74 rain; 2 snow)
- Ocean Shores: 76 total (75 rain; 1 snow)
- Shelton (CS Mason): 66 total (62 rain; 4 snow)
- Castle Rock: 64 total (61 rain; 3 snow)
- Kelso (CS Cowlitz): 64 total (60 rain; 4 snow)
- Longview: 60 total (56 rain; 4 snow)
- Olympia (CS Thurston; State Capital): 59 total (53 rain; 6 snow)
- Centralia: 56 total (50 rain; 6 snow)
- Tumwater: 56 total (50 rain; 6 snow)
- Oakville: 55 total (52 rain; 3 snow)
- Chehalis (CS Lewis): 54 total (52 rain; 2 snow)
- Bremerton: 52 total (49 rain; 3 snow)
- Port Orchard (CS Kitsap): 51 total (47 rain; 4 snow)
- Bainbridge Island: 48 total (44 rain; 4 snow)
- Poulsbo: 44 total (41 rain; 3 snow)
- Port Angeles (CS Clallum): 39 total (36 rain; 3 snow)
- Port Townsend (CS Jefferson): 25 total (23 rain; 2 snow)
- Sequim: 25 total (23 rain; 2 snow)
Footnote
I've seen figures for Aberdeen as low as 67 inches per year and as high as 96 inches. Wikipedia says it's just shy of 85 inches of precipitation annually.The above data is taken from bestplaces.net in part because Wikipedia is not consistent. Sometimes it lists climate data for a city and sometimes it doesn't.
BestPlaces.net also provided readily legible figures for rainfall and snowfall rather than one overarching number for precipitation. Breaking it down to rainfall and snowfall will be more meaningful information for most people.
Some additional resources:
