Climatological Report (Daily)
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917
CDUS45 KRIW 220727
CLIGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT THU MAY 22 2025

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

...THE GREYBULL WY CLIMATE SUMMARY FOR MAY 21 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
...................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         64   5:57 PM  88    2023  72     -8       53
  MINIMUM         41   3:27 AM  31    2001  46     -5       43
  AVERAGE         53                        59     -6       48

PRECIPITATION (IN)
  YESTERDAY        0.02          0.36 2007   0.05  -0.03     0.18
  MONTH TO DATE    1.54                      0.82   0.72     1.70
  SINCE MAR 1      2.46                      1.57   0.89     2.97
  SINCE JAN 1      2.67                      1.84   0.83     3.02

DEGREE DAYS
 HEATING
  YESTERDAY       12                         7      5       17
  MONTH TO DATE  180                       217    -37      244
  SINCE MAR 1   1460                      1607   -147     1539
  SINCE JUL 1   6945                      7431   -486     6795

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE    9                         7      2        0
  SINCE MAR 1      9                         8      1        0
  SINCE JAN 1      9                         8      1        0
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION     N (340)
  HIGHEST GUST SPEED    23   HIGHEST GUST DIRECTION    NW (330)
  AVERAGE WIND SPEED     6.6


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    93           6:00 AM
 LOWEST     29           4:00 PM
 AVERAGE    61

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


THE GREYBULL WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   73        89      2006
                                             2023
 MINIMUM TEMPERATURE (F)   46        31      2022


SUNRISE AND SUNSET
MAY 22 2025...........SUNRISE   5:37 AM MDT   SUNSET   8:41 PM MDT
MAY 23 2025...........SUNRISE   5:37 AM MDT   SUNSET   8:42 PM MDT


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




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