Mount Vernon, Washington Climate
United States
Pop. 34,053 Elev. 27 m / 89 ft
TZ: America/Los_Angeles (UTC-7) ·
Summers in Mount Vernon are mild, with August highs around 73°F (23°C), while winters are cold with February lows of 31°F (-1°C). Expect around 100 rainy days annually (64.3 in / 1632 mm total), with snow on 12 days and 64 in (1627 mm) of annual accumulation. The city averages 76 sunny days per year and around 31 thunderstorm days. Ocean water temperatures reach 58°F (14°C) in summer.
| Temperature | 73°F (23°C) high | 31°F (-1°C) low |
| Feels like | 27°F (-3°C) low | |
| Rain | 100 days | 64.3 in (1632 mm) /yr |
| Snow | 12 days | 64.1 in (1627 mm) /yr |
| Sky | 76 sunny | 31 stormy |
| Wind | 2.3 mph (1.1 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 (%)
55
Jan 72
Feb 85
Mar 59
Apr 66
May 59
Jun 42
Jul 60
Aug 58
Sep 68
Oct 87
Nov 89
Dec Humidity (%)
82
Jan 82
Feb 82
Mar 71
Apr 72
May 75
Jun 70
Jul 75
Aug 79
Sep 82
Oct 88
Nov 90
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 27 mi Bellingham International Airport (BLI)
Ski resort 43 mi Mt Baker
National park 32 mi Mount Baker National Recreation Area
Mountain peak
(6,067 ft) 24 mi
Hospital 0 mi Skagit Valley Hospital
Hiking trail 14 mi Oyster Dome Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 42°F 6°C | 32°F 0°C | 3.0 in 77 mm | 5.8 in146 mm | 9 |
| February | 42°F 5°C | 31°F -1°C | 5.8 in 147 mm | 14.4 in365 mm | 4 |
| March | 49°F 10°C | 39°F 4°C | 8.1 in 206 mm | 19.8 in502 mm | 1 |
| April | 57°F 14°C | 42°F 6°C | 4.7 in 119 mm | 1.6 in40 mm | 8 |
| May | 62°F 16°C | 47°F 9°C | 3.3 in 84 mm | 0.1 in3 mm | 6 |
| June | 66°F 19°C | 52°F 11°C | 1.3 in 33 mm | — | 9 |
| July | 73°F 23°C | 57°F 14°C | 0.3 in 8 mm | — | 14 |
| August | 73°F 23°C | 58°F 15°C | 3.6 in 92 mm | — | 9 |
| September | 70°F 21°C | 55°F 13°C | 1.3 in 33 mm | — | 8 |
| October | 56°F 13°C | 45°F 7°C | 8.4 in 214 mm | 0.4 in10 mm | 8 |
| November | 50°F 10°C | 41°F 5°C | 9.4 in 239 mm | 2.0 in50 mm | 0 |
| December | 45°F 7°C | 38°F 3°C | 15.0 in 382 mm | 20.1 in512 mm | 0 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 9 | 0 |
| February | 4 | 1 |
| March | 1 | 3 |
| April | 8 | 4 |
| May | 6 | 1 |
| June | 9 | 0 |
| July | 14 | 0 |
| August | 9 | 0 |
| September | 8 | 0 |
| October | 8 | 7 |
| November | 0 | 5 |
| December | 0 | 10 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 48°F 9°C | 37°F 3°C |
| February | 46°F 8°C | 34°F 1°C |
| March | 47°F 8°C | 38°F 3°C |
| April | 50°F 10°C | 45°F 7°C |
| May | 53°F 11°C | 52°F 11°C |
| June | 55°F 13°C | 60°F 16°C |
| July | 56°F 13°C | 66°F 19°C |
| August | 58°F 14°C | 69°F 20°C |
| September | 56°F 13°C | 66°F 19°C |
| October | 54°F 12°C | 54°F 12°C |
| November | 50°F 10°C | 46°F 8°C |
| December | 49°F 10°C | 42°F 5°C |