Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 180728
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT JUL 18 2026
...................................
...THE CASPER WY CLIMATE SUMMARY FOR JULY 17 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 96 4:03 PM 101 2023 90 6 94
MINIMUM 60 5:19 AM 43 1982 54 6 55
AVERAGE 78 72 6
PRECIPITATION (IN)
YESTERDAY 0.00 0.28 1967 0.04 -0.04 0.00
MONTH TO DATE 0.05 0.66 -0.61 0.45
SINCE JUN 1 0.60 2.00 -1.40 0.98
SINCE JAN 1 4.25 7.51 -3.26 5.90
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 0 0 0
MONTH TO DATE 0 9 -9 5
SINCE JUN 1 92 135 -43 96
SINCE JUL 1 0 9 -9 5
COOLING
YESTERDAY 13 7 6 10
MONTH TO DATE 148 95 53 118
SINCE JUN 1 183 146 37 193
SINCE JAN 1 184 150 34 193
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 7.3
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 72 5:00 AM
LOWEST 14 3:00 PM
AVERAGE 43
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 90 103 1998
MINIMUM TEMPERATURE (F) 54 44 1949
1980
2005
SUNRISE AND SUNSET
JULY 18 2026..........SUNRISE 5:43 AM MDT SUNSET 8:40 PM MDT
JULY 19 2026..........SUNRISE 5:44 AM MDT SUNSET 8:40 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$