Climatological Report (Annual)
Issued by NWS Cheyenne, WY

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000
CXUS55 KCYS 091918
CLACYS


Climate Report
NATIONAL WEATHER SERVICE CHEYENNE WY
1200 PM MST TUE JAN 9 2018

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

...The CHEYENNE WY climate summary for the year of 2017...

Climate normal period 1981 to 2010
Climate record period 1871 to 2018

Weather         Observed          Normal  Depart  Last Year`s
                 Value   Date(s)  Value   From    Value
                                          Normal
.............................................................
Temperature (F)
Record
 High             100   06/23/1954
                        07/11/1939
                        07/14/1881
 Low              -38   01/09/1875
Highest            97   07/19                         96
Lowest            -17   01/06                        -16
Avg. Maximum     61.3              58.6     2.7     61.4
Avg. Minimum     35.5              34.3     1.2     35.7
Mean             48.4              46.5     1.9     48.6
Days Max >= 90     12              10.4               15
Days Max <= 32     23              32.8               24
Days Min <= 32    157             164.1              152
Days Min <= 0       4               8.1                6

Precipitation (inches)
Record
 Maximum        23.69   1942
 Minimum         5.94   1964
Totals          15.14             15.94   -0.80    14.71
Daily Avg.       0.04              0.04    0.00     0.04
Days >= .01       103             103.8               97
Days >= .10        40              41.0               41
Days >= .50         8               8.2                5
Days >= 1.00        1               1.8                2
Greatest
 24 Hr. Total    1.69   05/18 to 05/19              1.49

Snowfall (inches)
Records
 Total          121.5   1980
Totals           70.0              60.3     9.7     75.9
Since 7/1        25.2              22.7     2.5     10.0
Days >= Trace      72              45.0               79
Days >= 1.0        17              18.4               23
Greatest
 Snow Depth         9   01/06                         10
                        01/05
 24 Hr Total     11.6   05/18 to 05/18              12.8

DEGREE_DAYS
HEATING TOTAL    6360              7111    -751     6364
 SINCE 7/1         MM              2903      MM       MM
COOLING TOTAL     414               349      65      452
 SINCE 1/1        414               348      66      452
..............................................................

Wind (mph)
Average Wind Speed              11.7
Highest Wind Speed/Direction    58/290    Date  01/10
Highest Gust Speed/Direction    75/250    Date  02/21

Sky Cover
Possible Sunshine (Percent)   MM
Average Sky Cover           0.30
Number Of Days Fair          228
Number Of Days PC            101
Number of Days Cloudy         36

Average RH (Percent)     54

Weather Conditions. Number Of Days With
Thunderstorm              0     Mixed Precip               0
Heavy Rain               14     Rain                      27
Light Rain              106     Freezing Rain              0
Lt Freezing Rain          3     Hail                       6
Heavy Snow                8     Snow                      12
Light Snow               59     Sleet                      3
Fog                     111     Fog w/vis <= 1/4 mile     37
Haze                     31

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

$$




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