Vashon, Washington Climate
United States
Pop. 10,624 Elev. 115 m / 377 ft
TZ: America/Los_Angeles (UTC-7) ·
Vashon sees mild summers peaking at 77°F (25°C) in July, and cool winters that bottom out around 38°F (3°C) in January. Precipitation occurs on roughly 75 days per year (43.7 in / 1111 mm total), with 4 in (97 mm) of annual snowfall. Overcast skies are common, with only 73 sunny days per year. Ocean water temperatures reach 61°F (16°C) in summer.
| Temperature | 77°F (25°C) high | 38°F (3°C) low |
| Feels like | 38°F (3°C) low | |
| Rain | 75 days | 43.7 in (1111 mm) /yr |
| Snow | 0 days | 3.8 in (97 mm) /yr |
| Sky | 73 sunny | 14 stormy |
| Wind | 2.2 mph (1.0 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: May, Jun, Jul, Aug, Sep
Sky & Air by Month
Cloud cover (%)
63
Jan 72
Feb 84
Mar 59
Apr 61
May 54
Jun 42
Jul 53
Aug 53
Sep 63
Oct 85
Nov 83
Dec Humidity (%)
87
Jan 82
Feb 80
Mar 70
Apr 69
May 68
Jun 65
Jul 69
Aug 76
Sep 81
Oct 87
Nov 88
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 7 mi Seattle–Tacoma International Airport (SEA)
Ski resort 47 mi Alpental Backcountry
National park 80 mi San Juan Island National Historical Park
Mountain peak
(5,699 ft) 33 mi Mount Jupiter
Hospital 6 mi St. Anne Hospital
Hiking trail 10 mi Promenade
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 46°F 8°C | 38°F 3°C | 2.5 in 63 mm | — | 6 |
| February | 46°F 8°C | 39°F 4°C | 4.4 in 112 mm | 3.6 in92 mm | 4 |
| March | 53°F 12°C | 43°F 6°C | 6.3 in 160 mm | 0.2 in5 mm | 2 |
| April | 59°F 15°C | 46°F 8°C | 3.4 in 86 mm | — | 7 |
| May | 65°F 18°C | 50°F 10°C | 2.6 in 66 mm | — | 5 |
| June | 71°F 21°C | 56°F 13°C | 0.8 in 22 mm | — | 9 |
| July | 77°F 25°C | 60°F 16°C | 0.2 in 5 mm | — | 15 |
| August | 77°F 25°C | 61°F 16°C | 1.3 in 33 mm | — | 10 |
| September | 73°F 23°C | 58°F 15°C | 0.9 in 22 mm | — | 8 |
| October | 60°F 16°C | 49°F 10°C | 5.3 in 135 mm | — | 7 |
| November | 54°F 12°C | 47°F 8°C | 6.5 in 166 mm | — | 0 |
| December | 50°F 10°C | 43°F 6°C | 9.5 in 241 mm | 0.0 in0 mm | 0 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 6 | 0 |
| February | 4 | 0 |
| March | 2 | 2 |
| April | 7 | 2 |
| May | 5 | 2 |
| June | 9 | 0 |
| July | 15 | 0 |
| August | 10 | 0 |
| September | 8 | 0 |
| October | 7 | 5 |
| November | 0 | 2 |
| December | 0 | 1 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 48°F 9°C | 44°F 6°C |
| February | 47°F 8°C | 41°F 5°C |
| March | 48°F 9°C | 42°F 6°C |
| April | 53°F 11°C | 47°F 9°C |
| May | 55°F 13°C | 55°F 13°C |
| June | 60°F 16°C | 64°F 18°C |
| July | 60°F 16°C | 69°F 21°C |
| August | 61°F 16°C | 70°F 21°C |
| September | 61°F 16°C | 69°F 20°C |
| October | 57°F 14°C | 57°F 14°C |
| November | 52°F 11°C | 51°F 11°C |
| December | 50°F 10°C | 47°F 9°C |