697
CDUS45 KRIW 190732
CLIGEY
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT TUE MAY 19 2026
...............................
..THE GREYBULL WY CLIMATE SUMMARY FOR MAY 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 49 5:49 PM 92 2009 71 -22 65
MINIMUM 35R 11:58 PM 37 2024 45 -10 47
AVERAGE 42 58 -16 56
PRECIPITATION (IN)
YESTERDAY 0.00 0.22 2013 0.05 -0.05 0.14
MONTH TO DATE 0.22 0.67 -0.45 1.49
SINCE MAR 1 1.12 1.42 -0.30 2.41
SINCE JAN 1 1.16 1.69 -0.53 2.62
DEGREE DAYS
HEATING
YESTERDAY 23 8 15 9
MONTH TO DATE 169 195 -26 145
SINCE MAR 1 1288 1585 -297 1425
SINCE JUL 1 5676 7409 -1733 6910
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 10 4 6 9
SINCE MAR 1 10 5 5 9
SINCE JAN 1 10 5 5 9
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WIND (MPH)
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 42 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 21.4
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 61 11:00 PM
LOWEST 33 5:00 PM
AVERAGE 47
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THE GREYBULL WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 94 2009
MINIMUM TEMPERATURE (F) 45 31 2003
SUNRISE AND SUNSET
MAY 19 2026...........SUNRISE 5:40 AM MDT SUNSET 8:38 PM MDT
MAY 20 2026...........SUNRISE 5:39 AM MDT SUNSET 8:39 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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