Climatological Report (Annual)
Issued by NWS Cheyenne, WY

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000
CXUS55 KCYS 012118
CLACYS

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHEYENNE WY
218 PM MST MON JAN 01 2024

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

...THE CHEYENNE WYOMING AIRPORT CLIMATE SUMMARY FOR THE YEAR OF 2023...

CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1871 TO 2023

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           93   07/17         58      35       99  07/18
                       07/24
                       08/21
LOWEST           -19   02/23         33     -52      -25  12/22
AVG. MAXIMUM    59.2               59.2     0.0     60.7
AVG. MINIMUM    35.4               34.6     0.8     34.1
MEAN            47.3               46.9     0.4     47.4
DAYS MAX >= 90    17               14.9     2.1       33
DAYS MAX <= 32    37               32.8     4.2       31
DAYS MIN <= 32   165              170.4    -5.4      177
DAYS MIN <= 0      7                7.8    -0.8       18

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       23.69   1942
 MINIMUM        5.94   1964
TOTALS         20.37              15.41    4.96     9.47
DAILY AVG.      0.05               0.04    0.01     0.03
DAYS >= .01      107              101.5     5.5       76
DAYS >= .10       58               40.2    17.8       33
DAYS >= .50       12                7.7     4.3        0
DAYS >= 1.00       1                1.8    -0.8        0
GREATEST
 24 HR. TOTAL   1.39   0MM19 TO 07/20               0.49
 STORM TOTAL    1.38                                0.42
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL         121.5   1980
 24 HR TOTAL    22.7   MM
TOTALS          59.1               62.9    -3.8     64.7
SINCE 7/1       16.3               23.2    -6.9       MM
DAYS >= TRACE     72               45.0    27.0       71
DAYS >= 1.0       21               19.5     1.5       23
GREATEST
 SNOW DEPTH        7   01/30                           7  01/05
                       11/25
                                                          01/06
 24 HR TOTAL     7.6   11/24 TO 11/25                7.2  01/05 TO 01/05
 STORM TOTAL     5.4                                 7.2
 (MM/DD(HH))            MM

DEGREE DAYS
HEATING TOTAL   6730               6959    -229     6992
 SINCE 7/1      2384               2812    -428       MM
COOLING TOTAL    383                398     -15      701
 SINCE 1/1       383                397     -14       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.8
HIGHEST WIND SPEED/DIRECTION    55/270    DATE  02/19
HIGHEST GUST SPEED/DIRECTION    77/270    DATE  02/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.29
NUMBER OF DAYS FAIR          245
NUMBER OF DAYS PC             73
NUMBER OF DAYS CLOUDY         47

AVERAGE RH (PERCENT)     55

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             75     MIXED PRECIP               0
HEAVY RAIN               26     RAIN                      30
LIGHT RAIN              100     FREEZING RAIN              0
LT FREEZING RAIN          4     HAIL                       7
HEAVY SNOW                4     SNOW                      18
LIGHT SNOW               69     SLEET                      0
FOG                     112     FOG W/VIS <= 1/4 MILE     30
HAZE                     75

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

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