366
CDUS45 KRIW 190729
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1229 AM MST MON JAN 19 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR JANUARY 18 2026
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 38 3:31 PM 42 2006 29 9 17
MINIMUM 12 3:55 AM -10 2024 6 6 2
AVERAGE 25 17 8 10
PRECIPITATION (IN)
YESTERDAY 0.00 0.02 2008 0.01 -0.01 0.00
MONTH TO DATE T 0.08 -0.08 0.16
SINCE DEC 1 0.24 0.19 0.05 0.39
SINCE JAN 1 T 0.08 -0.08 0.16
DEGREE DAYS
HEATING
YESTERDAY 40 48 -8 55
MONTH TO DATE 588 864 -276 820
SINCE DEC 1 1580 2279 -699 1929
SINCE JUL 1 2953 4056 -1103 3324
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 10.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 73 5:00 AM
LOWEST 40 2:00 PM
AVERAGE 57
......................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 29 46 1999
MINIMUM TEMPERATURE (F) 6 -13 2024
SUNRISE AND SUNSET
JANUARY 19 2026.......SUNRISE 7:43 AM MST SUNSET 5:04 PM MST
JANUARY 20 2026.......SUNRISE 7:42 AM MST SUNSET 5:05 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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