Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 200726
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
126 AM MDT WED AUG 20 2025
...................................
...THE GREYBULL WY CLIMATE SUMMARY FOR AUGUST 19 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 101R 3:15 PM 98 1999 88 13 96
2019
MINIMUM 55 5:37 AM 41 2015 55 0 67
AVERAGE 78 72 6 82
PRECIPITATION (IN)
YESTERDAY 0.00 0.22 2016 0.01 -0.01 0.00
MONTH TO DATE 0.12 0.11 0.01 0.07
SINCE JUN 1 1.44 1.35 0.09 1.56
SINCE JAN 1 4.15 3.70 0.45 4.79
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 46 66 -20 33
SINCE JUL 1 0 4 -4 4
COOLING
YESTERDAY 13 7 6 17
MONTH TO DATE 185 174 11 174
SINCE JUN 1 625 605 20 661
SINCE JAN 1 646 629 17 661
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SE (140)
AVERAGE WIND SPEED 4.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 59 4:00 AM
LOWEST 7 5:00 PM
AVERAGE 33
..........................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 88 98 2024
MINIMUM TEMPERATURE (F) 55 45 2016
SUNRISE AND SUNSET
AUGUST 20 2025........SUNRISE 6:21 AM MDT SUNSET 8:09 PM MDT
AUGUST 21 2025........SUNRISE 6:23 AM MDT SUNSET 8:07 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$