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Alpharetta Weather and Climate Data

Weather and Climate data from 10/1/1901 to 8/31/2009 as measured at Cooperative Climate Station 090219, 5 Miles South-Southwest of Alpharetta


Avg
Max.
Temp
Avg
Min
Temp
Avg
Total
Precip
Avg
Total
Snow
Jan49.3°F28.04.901.3
Feb53.6°F30.04.960.4
Mar62.6°F37.05.950
Apr71.4°F44.64.190
May78.4°F53.74.360
Jun84.8°F61.83.740
Jul87.4°F65.54.480
Aug86.8°F65.14.030
Sep81.3°F59.23.490
Oct71.7°F46.63.460
Nov62.2°F37.43.670
Dec53.0°F30.94.630.1
Annual70.2°F46.751.871.8
Extreme
Daily
High
Temp
Extreme
Daily
High
Date
Extreme
Daily
Low
Temp
Extreme
Daily
Low
Date
Jan75°F30,1975-10°F21,1985
Feb80°F15,19891°F17,1958
Mar88°F26,20076°F5,1960
Apr91°F26,196024°F01,1987
May95°F17,196231°F4,1971
Jun101°F30,196940°F1,1984
Jul102°F22,198648°F16,1967
Aug101°F17,200750°F29,1968
Sep98°F1,195728°F30,1967
Oct88°F5,195925°F27,1962
Nov84°F1,196110°F25,1970
Dec76°F2,1991-1°F13,1962
Avg.
Max.
Temp.
Avg.
Min.
Temp.
Avg.
Mean.
Temp.
Annual70.2°F46.7°F58.4°F
Winter52°F29.6°F40.8°F
Spring70.8°F45.1°F57.9°F
Summer86.3°F64.1°F75.2°F
Fall71.8°F47.8°F59.8°F
Days
Max
Temp
Above
90°F
Days
Max
Temp
Below
32°F
Days
Min
Temp
Below
32°F
Days
Min
Temp
Below
0°F
Annual28.43.5850.5
Winter03.257.60.5
Spring10.214.50
Summer25000
Fall2.50.112.90
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