Climatological Report (Monthly)
Issued by NWS Cheyenne, WY

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CXUS55 KCYS 121814
CLMCYS


Climate Report
NATIONAL WEATHER SERVICE CHEYENNE WY
1114 AM MST THU JAN 12 2017

...................................

...The CHEYENNE WY climate summary for the month of December 2016...

Climate normal period 1981 to 2010
Climate record period 1871 to 2017

Weather         Observed          Normal  Depart  Last Year`s
                 Value   Date(s)  Value   From    Value  Date(s)
                                          Normal
................................................................
Temperature (F)
Record
 High              69   12/05/1939
 Low              -28   12/22/1990
                        12/21/1990
                        12/22/1989
Highest            55   12/30        39      16       60
Lowest            -16   12/08        17     -33       -7
Avg. Maximum     38.3              38.2     0.1     38.0
Avg. Minimum     14.4              17.3    -2.9     17.1
Mean             26.3              27.7    -1.4     27.5
Days Max >= 90      0               0.0                0
Days Max <= 32      7               8.7               12
Days Min <= 32     30              28.7               27
Days Min <= 0       4               2.7                2

Precipitation (inches)
Record
 Maximum         2.00   1913
 Minimum         0.01   1996
                        1881
Totals           0.43              0.49   -0.06     0.85
Days >= .01         7               6.2     0.8        6
Days >= .10         1               1.6    -0.6        3
Days >= .50         0               0.1    -0.1        0
Days >= 1.00        0               0.0     0.0        0
Greatest
 24 Hr. Total    0.20   12/14 to 12/14

Snowfall (inches)
Records
 Total           24.4   MM
Totals            6.2               8.4    -2.2     15.1
Since 7/1        10.0              22.7   -12.7     25.8
Snowdepth Avg.      0
Days >= Trace       9               6.8     2.2        8
Days >= 1.0         2               2.7    -0.7        3
Greatest
 Snow Depth         3   12/15                          6  12/16
 24 Hr Total      2.9   12/14 to 12/14           12/15 to 12/15
                                                          12/15 to 12/15
                                                          12/15 to 12/15

DEGREE_DAYS
HEATING TOTAL    1190              1155      35     1156
 SINCE 7/1       2454              2903    -449     2583
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        452               348     104      362
......................................................

Wind (mph)
Average Wind Speed              14.0
Highest Wind Speed/Direction    52/270    Date  12/19
Highest Gust Speed/Direction    65/260    Date  12/19

Sky Cover
Possible Sunshine (Percent)   MM
Average Sky Cover           0.30
Number Of Days Fair           16
Number Of Days PC             13
Number of Days Cloudy          2

Average RH (Percent)     54

Weather Conditions. Number Of Days With
Thunderstorm              0     Mixed Precip               0
Heavy Rain                0     Rain                       0
Light Rain                0     Freezing Rain              0
Lt Freezing Rain          0     Hail                       0
Heavy Snow                2     Snow                       4
Light Snow                8     Sleet                      0
Fog                      11     Fog w/vis <= 1/4 mile      2
Haze                      8

-  Indicates negative numbers.
R  Indicates record was set or tied.
MM Indicates data is missing.
T  Indicates Trace Amount.

$$



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