392
CXUS55 KCYS 020355
CLMCYS

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
955 PM MDT THU MAY 01 2025

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...THE CHEYENNE WYOMING AIRPORT CLIMATE SUMMARY FOR THE MONTH OF APRIL 2025...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1871 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             84   04/30/2020
 LOW              -8   04/01/1975
HIGHEST           79   04/12         55      24       74
LOWEST            20   04/03         30     -10       20
                       04/06
AVG. MAXIMUM    57.1               54.8     2.3     57.5
AVG. MINIMUM    30.1               30.8    -0.7     32.8
MEAN            43.6               42.8     0.8     45.1
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     2                1.4     0.6        1
DAYS MIN <= 32    20               18.0     2.0       14
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        7.66   1900
TOTALS          0.36               1.79   -1.43
DAYS >= .01        8               10.6    -2.6        7
DAYS >= .10        1                4.3    -3.3        2
DAYS >= .50        0                0.9    -0.9        0
DAYS >= 1.00       0                0.2    -0.2        0
GREATEST
 24 HR. TOTAL   0.12   04/25 TO 04/25               0.40  04/27 TO 04/27

SNOWFALL (INCHES)
RECORDS
 TOTAL          46.5   MM
 24 HR TOTAL    17.3   04/20/1984 TO 04/21/1984
TOTALS           2.7               11.3    -8.6      0.9
SINCE 7/1       34.3               59.5   -25.2       MM
DAYS >= 1.0        1                3.2    -2.2        0
GREATEST
 SNOW DEPTH        1   04/18                          MM
 24 HR TOTAL     2.0   04/17 TO 04/18                0.9

DEGREE DAYS
HEATING TOTAL    635                666     -31
 SINCE 7/1      5970               6447    -477
COOLING TOTAL      0                  0       0
 SINCE 1/1         0                  0       0
................................................................

WIND (MPH)
AVERAGE WIND SPEED              11.6
HIGHEST WIND SPEED/DIRECTION    38/280    DATE  04/09
HIGHEST GUST SPEED/DIRECTION    56/300    DATE  04/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.36
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     54

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          2     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                4     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      3
HAZE                      1

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

$$