Climatological Report (Monthly)
Issued by NWS

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CXUS55 KCYS 091829
CLMSNY


Climate Report
NATIONAL WEATHER SERVICE CHEYENNE WY
1125 AM MST TUE JAN 9 2018

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

...The SIDNEY NE AIRPORT climate summary for the month of December 2017...

Climate normal period 1981 to 2010
Climate record period 1948 to 2018

Weather         Observed          Normal  Depart  Last Year`s
                 Value   Date(s)  Value   From    Value
                                          Normal
.............................................................
Temperature (F)
Record
 High              72   12/28/1980
                        12/18/1980
 Low              -39   12/22/1989
Highest            67   12/02        MM      MM       55
Lowest            -23   12/24        MM      MM      -17
Avg. Maximum     41.1              41.3    -0.2     36.8
Avg. Minimum     11.0              16.1    -5.1      9.9
Mean             26.0              28.7    -2.7     23.3
Days Max >= 90      0               0.0                0
Days Max <= 32      8               6.9                9
Days Min <= 32     29              30.1               26
Days Min <= 0       8               2.4                7

Precipitation (inches)
Record
 Maximum         1.30   1958
 Minimum         0.00   1996
                        1990
                        1980
Totals           0.20              0.54   -0.34     0.46
Days >= .01         1               3.8    -2.8        4
Days >= .10         1               1.1    -0.1        1
Days >= .50         0               0.1    -0.1        0
Days >= 1.00        0               0.0     0.0        0
Greatest
 24 Hr. Total    0.20   12/23 to 12/23

DEGREE_DAYS
HEATING TOTAL    1199              1125      74     1044
 SINCE 7/1       2628              2547      81     2195
COOLING TOTAL       0                 0       0        0
 SINCE 1/1        641               830    -189      770
..............................................................

Wind (mph)
Average Wind Speed              12.7
Highest Wind Speed/Direction    41/330    Date  12/04
Highest Gust Speed/Direction    56/330    Date  12/04

Sky Cover
Possible Sunshine (Percent)   MM
Average Sky Cover           0.30
Number Of Days Fair           21
Number Of Days PC              5
Number of Days Cloudy          5

Average RH (Percent)     62

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          1     Hail                       0
Heavy Snow                2     Snow                       3
Light Snow                8     Sleet                      0
Fog                      13     Fog w/vis <= 1/4 mile      2
Haze                      6

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

$$



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