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Jefferson County Weather

 
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The average temperature of Jefferson County is 65.42°F, which is higher than the Mississippi average temperature of 63.50°F and is much higher 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, #10

Jefferson County
73.25
Mississippi
98.98
U.S.
212.91

Cooling Cost Index, #78

Jefferson County
418.94
Mississippi
361.43
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
Jefferson County
65.4 °F
Mississippi
63.5 °F
U.S.
54.5 °F

Ranks: Average Max. Temperature: #24, Average Min. Temperature: #8

Precipitation

Average Annual Precipitation, #22
Jefferson County
58.18 inches
Mississippi
56.48 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), #33
Jefferson County
73.64 days
Mississippi
72.37 days
U.S.
66.51 days


Snow

Average Annual Snowfall, #71
Jefferson County
0.09 inches
Mississippi
0.71 inches
U.S.
23.27 inches


Average Number of Days with 1 Inch or More Snow Depth in a Year, #41
Jefferson County
0.13 days
Mississippi
0.30 days
U.S.
27.17 days


Humidity

Annual Average Humidity, #9
Jefferson County
78.45%
Mississippi
75.73%
U.S.
77.52%


Wind Speed

Annual Average Wind Speed, #17
Jefferson County
16.57 mph
Mississippi
15.19 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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