Climatological Report (Daily)
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392
CDUS45 KRIW 140739
CLIGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
139 AM MDT TUE OCT 14 2025

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

...THE GREYBULL WY CLIMATE SUMMARY FOR OCTOBER 13 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         42   3:06 PM  78    2015  61    -19       71
  MINIMUM         33   6:52 AM  21    2002  35     -2       37
  AVERAGE         38                        48    -10       54

PRECIPITATION (IN)
  YESTERDAY        0.00          0.26 2013   0.02  -0.02     0.00
  MONTH TO DATE    1.14                      0.35   0.79     0.00
  SINCE SEP 1      1.79                      1.18   0.61     0.38
  SINCE JAN 1      5.99                      5.00   0.99     5.69

DEGREE DAYS
 HEATING
  YESTERDAY       27                        17     10       11
  MONTH TO DATE  152                       186    -34       86
  SINCE SEP 1    213                       355   -142      156
  SINCE JUL 1    213                       374   -161      169

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        2
  SINCE SEP 1     50                        46      4       91
  SINCE JAN 1    791                       742     49      832
...................................................................


WIND (MPH)
  HIGHEST WIND SPEED    16   HIGHEST WIND DIRECTION    NW (300)
  HIGHEST GUST SPEED    20   HIGHEST GUST DIRECTION    NW (320)
  AVERAGE WIND SPEED    10.0


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.7


WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    92          12:00 AM
 LOWEST     67           3:00 PM
 AVERAGE    80

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


THE GREYBULL WY CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   61        78      2024
 MINIMUM TEMPERATURE (F)   34        22      2018


SUNRISE AND SUNSET
OCTOBER 14 2025.......SUNRISE   7:27 AM MDT   SUNSET   6:29 PM MDT
OCTOBER 15 2025.......SUNRISE   7:28 AM MDT   SUNSET   6:27 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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