Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 170730
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT MON AUG 17 2026
...................................
...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 16 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 85 3:46 PM 96 1982 87 -2 91
1995
2002
MINIMUM 53 5:23 AM 38 2009 52 1 56
AVERAGE 69 69 0
PRECIPITATION (IN)
YESTERDAY 0.00 0.19 1992 0.02 -0.02 0.00
MONTH TO DATE 1.84 0.47 1.37 0.22
SINCE JUN 1 2.52 3.00 -0.48 1.89
SINCE JAN 1 6.17 8.51 -2.34 6.81
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 5 4 1 4
SINCE JUN 1 97 144 -47 100
SINCE JUL 1 5 18 -13 9
COOLING
YESTERDAY 4 5 -1 9
MONTH TO DATE 112 99 13 89
SINCE JUN 1 489 350 139 391
SINCE JAN 1 490 354 136 391
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 25 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 8.5
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 97 12:00 AM
LOWEST 22 4:00 PM
AVERAGE 60
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 87 97 2013
2020
MINIMUM TEMPERATURE (F) 51 36 2002
2009
SUNRISE AND SUNSET
AUGUST 17 2026........SUNRISE 6:14 AM MDT SUNSET 8:05 PM MDT
AUGUST 18 2026........SUNRISE 6:15 AM MDT SUNSET 8:03 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$