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Bellevue, WA Weather


Bellevue, WA climate is mild during summer when temperatures tend to be in the 60's and cold during winter when temperatures tend to be in the 40's.

The warmest month of the year is August with an average maximum temperature of 75.80 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 35.20 degrees Fahrenheit.

Temperature variations between night and day tend to be fairly limited during summer with a difference that can reach 19 degrees Fahrenheit, and fairly limited during winter with an average difference of 12 degrees Fahrenheit.

The annual average precipitation at Bellevue is 35.96 Inches. Winter months tend to be wetter than summer months. The wettest month of the year is December with an average rainfall of 5.45 Inches.

Weather Data

Current Conditions

(Updated: 4:53 PM PST FRI NOV 20 2009)

Overcast Overcast, 47°F Humidity: 71% Dewpoint: 38°F
Wind Speed: S 13.8 MPH G 24.2 (12 MPH G 21 KT) Heat Index: 47°F
Barometer: 29.60 in. Wind Chill: 41°F

Weather Forecast

(Generated: 4:45 PM PST FRI NOV 20 2009)
  Tonight: Showers likely. Chance of a thunderstorm this evening. Lows in the mid 30s to lower 40s. Southwest wind 15 to 25 mph diminishing overnight.
Lo: 36°F
Hi: 45°F Saturday: Rain by afternoon. Highs in the 40s. South wind 10 to 20 mph.
Lo: 36°F
Hi: 45°F Sunday: Showers likely. Highs in the 40s. Lows in the mid 30s to lower 40s. South wind 5 to 15 mph.
Lo: 36°F
Hi: 49°F Monday: Rain. Highs in the upper 40s.
Lo: 40°F
Hi: 50°F Tuesday: Mostly cloudy with a chance of rain. Lows near 40. Highs near 50.
Lo: 40°F
Hi: 50°F Wednesday: Mostly cloudy with a chance of rain. Lows near 40. Highs near 50.
Lo: 40°F
Hi: 50°F Wednesday: Mostly cloudy with a chance of rain. Lows near 40. Highs near 50.
Lo: 40°F

Moon, Sunrise and Sunset

Waxing Crescent Moon Moon Phase: Waxing Crescent Moon Civil Twilight:
6:46 AM PST
Sunrise:
7:20 AM PST
Sunset:
4:27 PM PST
Civil Twilight:
5:01 PM PST

Normal Climate

Normal Temperatures

(SEATTLE SAND PT WSFO Weather station, 5.34 miles from Bellevue)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Max °F 46.4 49.7 53.6 58.3 64.5 69.4 75.0 75.8 70.5 60.2 51.5 46.0 60.1
Mean °F 40.8 43.0 45.9 50.1 55.9 60.6 65.2 66.2 61.5 53.3 45.9 40.7 52.4
Min °F 35.2 36.2 38.1 41.8 47.3 51.7 55.4 56.5 52.4 46.3 40.2 35.4 44.7

Normal Precipitation

(SEATTLE SAND PT WSFO Weather station, 5.34 miles from Bellevue)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Inch 4.49 3.67 3.84 2.84 2.10 1.68 0.97 0.97 1.71 3.32 4.92 5.45 35.96