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000
CXUS55 KRIW 031753
CLMGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1053 AM MST WED JAN 03 2024

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

...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             63   12/11/2004
 LOW             -36   12/22/2022
HIGHEST           49   12/21
LOWEST             0   12/25
AVG. MAXIMUM    39.0               30.8     8.2
AVG. MINIMUM    12.6                7.9     4.7
MEAN            25.8               19.3     6.5
DAYS MAX >= 90     0
DAYS MAX <= 32     5
DAYS MIN <= 32    31
DAYS MIN <= 0      1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        0.49   1999
 MINIMUM        0.01   2021
TOTALS             TR              0.11   -0.11     0.03
DAILY AVG.         T               0.00   -0.00
DAYS >= .01        0
DAYS >= .10        0
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL      T   12/03 TO 12/03
                       12/07 TO 12/07
                       12/09 TO 12/09
 STORM TOTAL    0.00

DEGREE DAYS
HEATING TOTAL   1205               1415    -210
 SINCE 7/1      2810               3194    -384
COOLING TOTAL      0                  0       0
 SINCE 1/1       702                744     -42
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              3.7
RESULTANT WIND SPEED/DIRECTION   0/290
HIGHEST WIND SPEED/DIRECTION    44/340    DATE  12/23
HIGHEST GUST SPEED/DIRECTION    60/340    DATE  12/23

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.18
NUMBER OF DAYS FAIR           24
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     69

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

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

$$