Climatological Report (Monthly)
Issued by NWS Cheyenne, WY

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CXUS55 KCYS 041339
CLMCYS


Climate Report
NATIONAL WEATHER SERVICE CHEYENNE WY
739 AM MDT WED OCT 4 2017

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

...The CHEYENNE WY climate summary for the month of September 2017...

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              93   09/04/1960
 Low                8   09/30/1985
Highest            92   09/03        71      21       88
Lowest             35   09/26        44      -9       35
Avg. Maximum     73.4              71.8     1.6     75.7
Avg. Minimum     46.7              44.7     2.0     45.4
Mean             60.1              58.2     1.9     60.5
Days Max >= 90      1               0.2                0
Days Max <= 32      0               0.1                0
Days Min <= 32      0               1.7                0
Days Min <= 0       0               0.0                0

Precipitation (inches)
Record
 Maximum         6.95   2013
 Minimum         0.00   1879
Totals           1.08              1.48   -0.40     0.80
Days >= .01         6               8.3    -2.3        8
Days >= .10         4               3.8     0.2        3
Days >= .50         0               1.0    -1.0        0
Days >= 1.00        0               0.2    -0.2        0
Greatest
 24 Hr. Total    0.42   09/23 to 09/24

Snowfall (inches)
Records
 Total           11.8   MM
Totals            0.0               1.3    -1.3        T
Since 7/1           T               1.3    -1.3        T
Snowdepth Avg.      0
Days >= Trace       0               0.7    -0.7        2
Days >= 1.0         0               0.4    -0.4        0
Greatest
 Snow Depth         0   MM                             0  MM
 24 Hr Total      0.0   09/30 to 09/30           09/15 to 09/15
                                                          09/15 to 09/15
                                                          09/15 to 09/15

DEGREE_DAYS
HEATING TOTAL     199               225     -26      158
 SINCE 7/1        230               281     -51      212
COOLING TOTAL      60                22      38       32
 SINCE 1/1        408               348      60      452
......................................................

Wind (mph)
Average Wind Speed              9.4
Highest Wind Speed/Direction    43/300    Date  09/19
Highest Gust Speed/Direction    57/300    Date  09/19

Sky Cover
Possible Sunshine (Percent)   MM
Average Sky Cover           0.40
Number Of Days Fair           18
Number Of Days PC              6
Number of Days Cloudy          6

Average RH (Percent)     52

Weather Conditions. Number Of Days With
Thunderstorm              0     Mixed Precip               0
Heavy Rain                1     Rain                       4
Light Rain               13     Freezing Rain              0
Lt Freezing Rain          0     Hail                       0
Heavy Snow                0     Snow                       0
Light Snow                0     Sleet                      0
Fog                       9     Fog w/vis <= 1/4 mile      3
Haze                      9

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

$$



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