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Issaquah, WA Weather

 
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The average temperature of Issaquah is 52.28°F, which is higher than the Washington average temperature of 50.47°F and is lower than the national average temperature of 54.45°F.

Topics:Heating Cost IndexCooling Cost IndexHistorical TemperatureHistorical PrecipitationHistorical SnowHistorical HumidityHistorical Wind Speed

Historical Weather

Heating Cost Index, #38

Issaquah, WA
143.77
Washington
203.04
U.S.
212.91

Cooling Cost Index, #206

Issaquah, WA
6.07
Washington
29.03
U.S.
139.42

The Heating Cost Index and the Cooling Cost Index are indicators of the relative heating and cooling cost of an area. They were calculated based on the average temperate and duration of the hot and cold days for the area. Please note, the actual heating cost and cooling cost are also dependent on other factors specific to individual residences such as the size of the house, the insulation condition, and the equipment efficiency, etc.

Average Temperature

Annual Average Temperature, #82
Issaquah, WA
52.3 °F
Washington
50.5 °F
U.S.
54.5 °F

Ranks: Average Max. Temperature: #264, Average Min. Temperature: #31

Precipitation

Average Annual Precipitation, #369
Issaquah, WA
37.72 inches
Washington
38.67 inches
U.S.
38.67 inches


Average Number of Days with 0.1 Inch or More Precipitation in a Year (this gives an indication of the number of days in a year that it is useful to have an umbrella), #317
Issaquah, WA
93.85 days
Washington
82.22 days
U.S.
66.51 days


Snow

Average Annual Snowfall, #504
Issaquah, WA
3.40 inches
Washington
15.57 inches
U.S.
23.27 inches


Average Number of Days with 1 Inch or More Snow Depth in a Year, #379
Issaquah, WA
2.52 days
Washington
16.59 days
U.S.
27.17 days


Humidity

Annual Average Humidity, #735
Issaquah, WA
70.99%
Washington
79.13%
U.S.
77.52%


Wind Speed

Annual Average Wind Speed, #647
Issaquah, WA
9.85 mph
Washington
15.03 mph
U.S.
16.93 mph


* The temperature, snow fall, and precipitation information on this page were calculated from the historical data of 18,000+ U.S weather stations for the period of time from 1980 to 2010. The humidity and wind speed information were calculated from data from 15,000 worldwide stations for the period of time from 1980 to 2010.


 
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