Annual
Climatology: Cheyenne, WY (CYS)
Elev: 6115 ft Lat: 41o 09'N Long: 104o 48'W
Figure 1: Average Temperatures and Precipitation 1971-2000. (NCDC Data)
Month |
Daily Max |
Daily Min |
Mean |
Maximum Daily Temperature |
Minimum Daily Temperature |
January |
37.1 |
14.8 |
25.9 |
66 |
-30 |
February |
40.5 |
17.2 |
28.8 |
71 |
-34 |
March |
46.4 |
22.0 |
34.2 |
74 |
-21 |
April |
54.4 |
28.7 |
41.6 |
83 |
-8 |
May |
64.4 |
38.3 |
51.3 |
91 |
13 |
June |
75.4 |
47.5 |
61.5 |
100 |
25 |
July |
81.9 |
53.4 |
67.7 |
100 |
33 |
August |
79.8 |
52.0 |
65.9 |
96 |
36 |
September |
70.3 |
42.9 |
56.6 |
95 |
8 |
October |
58.2 |
32.5 |
45.4 |
83 |
-1 |
November |
44.5 |
22.1 |
33.3 |
75 |
-21 |
December |
38.1 |
16.1 |
27.1 |
69 |
-28 |
Annual |
57.6 |
32.3 |
44.9 |
100 |
-34 |
Month |
Mean |
Median |
Extreme |
Year |
Snow* |
January |
0.45 |
0.36 |
2.71 |
1980 |
7.3 |
February |
0.44 |
0.30 |
1.26 |
1989 |
6.9 |
March |
1.05 |
0.94 |
3.65 |
1990 |
12.7 |
April |
1.55 |
1.30 |
5.02 |
1999 |
9.1 |
May |
2.48 |
2.33 |
6.00 |
1995 |
2.5 |
June |
2.12 |
1.92 |
4.58 |
1995 |
0.0 |
July |
2.26 |
2.13 |
5.01 |
1973 |
0.0 |
August |
1.82 |
1.67 |
6.64 |
1985 |
0.0 |
September |
1.43 |
0.99 |
4.52 |
1973 |
1.6 |
October |
0.75 |
0.51 |
1.85 |
1993 |
4.1 |
November |
0.64 |
0.44 |
2.48 |
1979 |
8.4 |
December |
0.46 |
0.46 |
1.50 |
1979 |
7.3 |
Annual |
15.45 |
15.52 |
|
|
59.9 |
* Snowfall totals represent
mean snowfall 1971-2000
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