Climatological Report (Daily)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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CDUS45 KRIW 200729
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
129 AM MDT THU AUG 20 2026
...................................
...THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 19 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 89 4:26 PM 97 2025 85 4 97
MINIMUM 52 5:42 AM 43 1996 53 -1 56
2002
AVERAGE 71 69 2 77
PRECIPITATION (IN)
YESTERDAY 0.00 0.29 0.01 -0.01 0.00
MONTH TO DATE 0.17 0.26 -0.09 0.01
SINCE JUN 1 1.03 1.74 -0.71 1.22
SINCE JAN 1 2.46 6.20 -3.74 5.74
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 0.0
MONTH TO DATE 0.0 0.0
SINCE JUN 1 0.0 0.0
SINCE JUL 1 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 2 6 -4 2
SINCE JUN 1 72 131 -59 80
SINCE JUL 1 2 16 -14 2
COOLING
YESTERDAY 6 5 1 12
MONTH TO DATE 153 126 27 147
SINCE JUN 1 593 417 176 532
SINCE JAN 1 616 425 191 538
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 6.9
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 86 4:00 AM
LOWEST 18 5:00 PM
AVERAGE 52
..........................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 99 2025
MINIMUM TEMPERATURE (F) 53 39 2016
SUNRISE AND SUNSET
AUGUST 20 2026........SUNRISE 6:25 AM MDT SUNSET 8:08 PM MDT
AUGUST 21 2026........SUNRISE 6:26 AM MDT SUNSET 8:07 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$