Climatological Report (Annual)
Issued by NWS Cheyenne, WY

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929
CXUS55 KCYS 050431
CLACYS

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
931 PM MST SAT JAN 04 2025

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

...THE CHEYENNE WYOMING AIRPORT CLIMATE SUMMARY FOR THE YEAR OF 2024...

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            100   06/23/1954
                       07/11/1939
                       07/14/1881
 LOW             -38   01/09/1875
HIGHEST           96   07/13         58      38       93  07/17
                       07/14
                                                          07/24
                                                          08/21
LOWEST           -23   01/13         33     -56      -19  02/23
                       01/13
AVG. MAXIMUM    62.5               59.2     3.3     59.2
AVG. MINIMUM    36.0               34.6     1.4     35.4
MEAN            49.2               46.9     2.3     47.3
DAYS MAX >= 90    22               14.9     7.1       17
DAYS MAX <= 32    19               32.8   -13.8       37
DAYS MIN <= 32   162              170.4    -8.4      165
DAYS MIN <= 0      7                7.8    -0.8        7

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       23.69   1942
 MINIMUM        5.94   1964
TOTALS         10.33              15.41   -5.08    20.37
DAILY AVG.      0.03               0.04   -0.01     0.05
DAYS >= .01       78              101.5   -23.5      107
DAYS >= .10       28               40.2   -12.2       58
DAYS >= .50        3                7.7    -4.7       12
DAYS >= 1.00       1                1.8    -0.8        1
GREATEST
 24 HR. TOTAL   1.55   08/12 TO 08/13               1.39  07/19 TO 07/20
 STORM TOTAL    1.11                                1.38
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL         121.5   1980
 24 HR TOTAL    22.7   MM
TOTALS          36.6               62.9   -26.3     59.1
SINCE 7/1        5.1               23.2   -18.1       MM
DAYS >= TRACE     52               45.0     7.0       72
DAYS >= 1.0       11               19.5    -8.5       21
GREATEST
 SNOW DEPTH        5   03/15                           7  01/30
                       03/15
                                                          11/25
 24 HR TOTAL     5.8   03/14 TO 03/14                7.6  11/23 TO 11/24
 STORM TOTAL     5.8                                 8.5
 (MM/DD(HH))            MM

DEGREE DAYS
HEATING TOTAL   6193               6959    -766     6730
 SINCE 7/1      2224               2812    -588       MM
COOLING TOTAL    528                398     130      383
 SINCE 1/1       528                397     131       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              11.2
HIGHEST WIND SPEED/DIRECTION    51/270    DATE  01/09
HIGHEST GUST SPEED/DIRECTION    82/300    DATE  04/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.24
NUMBER OF DAYS FAIR          263
NUMBER OF DAYS PC             82
NUMBER OF DAYS CLOUDY         21

AVERAGE RH (PERCENT)     51

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             52     MIXED PRECIP               0
HEAVY RAIN               14     RAIN                      18
LIGHT RAIN               90     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       1
HEAVY SNOW                3     SNOW                      10
LIGHT SNOW               52     SLEET                      0
FOG                      70     FOG W/VIS <= 1/4 MILE     18
HAZE                     24

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

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