974
CDUS45 KRIW 200730
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT MON APR 20 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR APRIL 19 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 69 3:28 PM 78 2019 61 8 57
MINIMUM 26R 5:57 AM 27 2002 34 -8 27
2021
2025
AVERAGE 48 47 1 42
PRECIPITATION (IN)
YESTERDAY 0.00 0.50 2005 0.02 -0.02 0.00
MONTH TO DATE 0.60 0.27 0.33 0.22
SINCE MAR 1 0.85 0.49 0.36 0.69
SINCE JAN 1 0.89 0.76 0.13 0.90
DEGREE DAYS
HEATING
YESTERDAY 17 18 -1 23
MONTH TO DATE 334 376 -42 374
SINCE MAR 1 917 1216 -299 1106
SINCE JUL 1 5305 7040 -1735 6591
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 10 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 3.6
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 69 3:00 AM
LOWEST 9 4:00 PM
AVERAGE 39
......................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 61 76 2009
2019
MINIMUM TEMPERATURE (F) 34 13 2008
SUNRISE AND SUNSET
APRIL 20 2026.........SUNRISE 6:20 AM MDT SUNSET 8:03 PM MDT
APRIL 21 2026.........SUNRISE 6:18 AM MDT SUNSET 8:05 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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