Climatological Report (Daily)
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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715
CDUS45 KRIW 190730
CLIRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT WED AUG 19 2026
...................................
...THE RIVERTON WY CLIMATE SUMMARY FOR AUGUST 18 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 75 6:21 PM 96 2010 85 -10 90
MINIMUM 59 10:24 PM 44 2015 53 6 56
AVERAGE 67 69 -2 73
PRECIPITATION (IN)
YESTERDAY T 0.65 0.01 -0.01 0.00
MONTH TO DATE 0.17 0.25 -0.08 0.01
SINCE JUN 1 1.03 1.73 -0.70 1.22
SINCE JAN 1 2.46 6.19 -3.73 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 5 -3 2
SINCE JUN 1 72 130 -58 80
SINCE JUL 1 2 15 -13 2
COOLING
YESTERDAY 2 5 -3 8
MONTH TO DATE 147 121 26 135
SINCE JUN 1 587 412 175 520
SINCE JAN 1 610 420 190 526
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 7.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 80 9:00 AM
LOWEST 37 3:00 PM
AVERAGE 59
..........................................................
THE RIVERTON WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 97 2025
MINIMUM TEMPERATURE (F) 53 43 1996
2002
SUNRISE AND SUNSET
AUGUST 19 2026........SUNRISE 6:24 AM MDT SUNSET 8:10 PM MDT
AUGUST 20 2026........SUNRISE 6:25 AM MDT SUNSET 8:08 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$