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CDUS45 KRIW 300733
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
133 AM MDT TUE SEP 30 2025
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR SEPTEMBER 29 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 83 3:39 PM 97 2024 69 14 97
MINIMUM 55 11:59 PM 27 1999 40 15 43
AVERAGE 69 55 14 70
PRECIPITATION (IN)
YESTERDAY 0.00 0.26 2014 0.03 -0.03 0.00
MONTH TO DATE 0.65 0.80 -0.15 0.38
SINCE SEP 1 0.65 0.80 -0.15 0.38
SINCE JAN 1 4.85 4.62 0.23 5.69
DEGREE DAYS
HEATING
YESTERDAY 0 11 -11 0
MONTH TO DATE 61 159 -98 59
SINCE SEP 1 61 159 -98 59
SINCE JUL 1 61 178 -117 72
COOLING
YESTERDAY 4 0 4 5
MONTH TO DATE 50 44 6 89
SINCE SEP 1 50 44 6 89
SINCE JAN 1 791 740 51 830
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION S (200)
AVERAGE WIND SPEED 5.8
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 67 11:00 PM
LOWEST 25 4:00 PM
AVERAGE 46
......................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 86 2015
MINIMUM TEMPERATURE (F) 40 29 2021
SUNRISE AND SUNSET
SEPTEMBER 30 2025.....SUNRISE 7:09 AM MDT SUNSET 6:54 PM MDT
OCTOBER 1 2025.......SUNRISE 7:11 AM MDT SUNSET 6:52 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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