Climatological Report (Daily)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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CDUS45 KRIW 210727
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT FRI AUG 21 2026
...................................
...THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 20 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 96 4:41 PM 99 2025 85 11 99
MINIMUM 56 3:43 AM 39 2016 53 3 55
AVERAGE 76 69 7 77
PRECIPITATION (IN)
YESTERDAY 0.00 0.15 0.01 -0.01 0.00
MONTH TO DATE 0.17 0.27 -0.10 0.01
SINCE JUN 1 1.03 1.75 -0.72 1.22
SINCE JAN 1 2.46 6.21 -3.75 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 7 -5 2
SINCE JUN 1 72 132 -60 80
SINCE JUL 1 2 17 -15 2
COOLING
YESTERDAY 11 5 6 12
MONTH TO DATE 164 131 33 159
SINCE JUN 1 604 422 182 544
SINCE JAN 1 627 430 197 550
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION NW (320)
HIGHEST GUST SPEED 22 HIGHEST GUST DIRECTION S (180)
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 51 4:00 AM
LOWEST 13 3:00 PM
AVERAGE 32
..........................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 84 94 2010
2023
2024
MINIMUM TEMPERATURE (F) 53 44 2021
SUNRISE AND SUNSET
AUGUST 21 2026........SUNRISE 6:26 AM MDT SUNSET 8:07 PM MDT
AUGUST 22 2026........SUNRISE 6:27 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.
$$