468
CDUS45 KRIW 130727
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT WED MAY 13 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR MAY 12 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 80 5:14 PM 91 2001 69 11 87
2007
MINIMUM 49 5:27 AM 30 2004 42 7 47
2005
AVERAGE 65 56 9 67
PRECIPITATION (IN)
YESTERDAY 0.00 0.29 2018 0.04 -0.04 0.00
MONTH TO DATE 0.22 0.40 -0.18 0.52
SINCE MAR 1 1.12 1.15 -0.03 1.44
SINCE JAN 1 1.16 1.42 -0.26 1.65
DEGREE DAYS
HEATING
YESTERDAY 0 10 -10 0
MONTH TO DATE 116 143 -27 86
SINCE MAR 1 1235 1533 -298 1366
SINCE JUL 1 5623 7357 -1734 6851
COOLING
YESTERDAY 0 0 0 2
MONTH TO DATE 4 0 4 9
SINCE MAR 1 4 1 3 9
SINCE JAN 1 4 1 3 9
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 6.3
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 56 5:00 AM
LOWEST 17 6:00 PM
AVERAGE 37
......................................................
THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 94 2001
MINIMUM TEMPERATURE (F) 43 28 2014
SUNRISE AND SUNSET
MAY 13 2026...........SUNRISE 5:47 AM MDT SUNSET 8:31 PM MDT
MAY 14 2026...........SUNRISE 5:46 AM MDT SUNSET 8:32 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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