455
CDUS45 KRIW 010731
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT SAT AUG 01 2026
...............................
..THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR JULY 31 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 83 3:44 PM 86 2000 74 9 79
MINIMUM 43 5:52 AM 34 2001 40 3 37
2008
AVERAGE 63 57 6 58
PRECIPITATION (IN)
YESTERDAY 0.00 0.23 2021 0.04 -0.04 0.00
MONTH TO DATE 0.85 1.51 -0.66 0.74
SINCE JUN 1 2.96 3.89 -0.93 1.39
SINCE JAN 1 11.20 13.92 -2.72 10.62
DEGREE DAYS
HEATING
YESTERDAY 2 8 -6 7
MONTH TO DATE 116 294 -178 231
SINCE JUN 1 630 832 -202 673
SINCE JUL 1 116 294 -178 231
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 2 0 2 1
SINCE JUN 1 2 0 2 1
SINCE JAN 1 2 0 2 1
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WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 2.3
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 82 4:00 AM
LOWEST 15 3:00 PM
AVERAGE 49
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THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 86 2000
MINIMUM TEMPERATURE (F) 40 30 2001
SUNRISE AND SUNSET
AUGUST 1 2026........SUNRISE 6:09 AM MDT SUNSET 8:47 PM MDT
AUGUST 2 2026........SUNRISE 6:10 AM MDT SUNSET 8:45 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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