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Umatilla County Weather

 
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The average temperature of Umatilla County is 52.63°F, which is higher than the Oregon average temperature of 51.27°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, #20

Umatilla County
212.79
Oregon
194.91
U.S.
212.91

Cooling Cost Index, #35

Umatilla County
115.87
Oregon
44.63
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, #8
Umatilla County
52.6 °F
Oregon
51.3 °F
U.S.
54.5 °F

Ranks: Average Max. Temperature: #4, Average Min. Temperature: #18

Precipitation

Average Annual Precipitation, #30
Umatilla County
13.59 inches
Oregon
43.62 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), #29
Umatilla County
41.26 days
Oregon
86.56 days
U.S.
66.51 days


Snow

Average Annual Snowfall, #19
Umatilla County
8.90 inches
Oregon
10.91 inches
U.S.
23.27 inches


Average Number of Days with 1 Inch or More Snow Depth in a Year, #16
Umatilla County
10.05 days
Oregon
9.61 days
U.S.
27.17 days


Humidity

Annual Average Humidity, #21
Umatilla County
79.55%
Oregon
79.55%
U.S.
77.52%


Wind Speed

Annual Average Wind Speed, #6
Umatilla County
22.00 mph
Oregon
16.38 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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