Climatological Report (Monthly)
Issued by NWS Cheyenne, WY

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000
CXUS55 KCYS 022322
CLMCYS

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
522 PM MDT SUN MAY 02 2021

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

...THE CHEYENNE WYOMING AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2021...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             84   04/30/2020
 LOW              -8   04/01/1975
HIGHEST           76   04/30         55      21
LOWEST            11   04/20         30     -19
AVG. MAXIMUM    53.2               54.9    -1.7
AVG. MINIMUM    28.5               30.8    -2.3
MEAN            40.8               42.8    -2.0     40.3
DAYS MAX >= 90     0                0.0
DAYS MAX <= 32     5                1.5
DAYS MIN <= 32    20               16.6
DAYS MIN <= 0      0                0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        7.66   1900
TOTALS          1.99               1.78    0.21
DAYS >= .01        7               10.3    -3.3        9
DAYS >= .10        4                4.1    -0.1        2
DAYS >= .50        1                0.9     0.1        0
DAYS >= 1.00       1                0.3     0.7        0
GREATEST
 24 HR. TOTAL   1.47   04/27 TO 04/28

SNOWFALL (INCHES)
RECORDS
 TOTAL          46.5   1905
 24 HR TOTAL    17.3   04/20/1984 TO 04/21/1984
TOTALS           6.2               10.2    -4.0     12.4
SINCE 7/1       78.6               58.0    20.6     72.2
DAYS >= 1.0        3                2.7     0.3        4
GREATEST
 SNOW DEPTH        3   04/15                           5
                       04/16
 24 HR TOTAL     2.6   04/15 TO 04/15                6.7

DEGREE DAYS
HEATING TOTAL    716                665      51
 SINCE 7/1      6571               6585     -14
COOLING TOTAL      0                  0       0
 SINCE 1/1         0                  0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              11.8
HIGHEST WIND SPEED/DIRECTION    33/330    DATE  04/08
                                33/350          04/11
HIGHEST GUST SPEED/DIRECTION    48/300    DATE  04/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.41
NUMBER OF DAYS FAIR           14
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     56

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                4     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW               12     SLEET                      0
FOG                      12     FOG W/VIS <= 1/4 MILE      3
HAZE                      3

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$


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