566
CDUS45 KRIW 190045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT WED MAR 18 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MARCH 18 2026
VALID TODAY AS OF 0600 PM LOCAL TIME.
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)
TODAY
MAXIMUM 78R 3:22 PM 75 2017 50 28 35
MINIMUM 43 2:02 AM -15 1965 24 19 25
AVERAGE 61 37 24 30
PRECIPITATION (IN)
TODAY T 0.95 1954 0.03 -0.03 0.01
MONTH TO DATE 0.16 0.44 -0.28 0.91
SINCE MAR 1 0.16 0.44 -0.28 0.91
SINCE JAN 1 0.70 1.49 -0.79 1.63
SNOWFALL (IN)
TODAY MM 0.4 MM 0.5
MONTH TO DATE 1.6 5.8 -4.2 6.0
SINCE MAR 1 1.6 5.8 -4.2 6.0
SINCE JUL 1 17.3 54.1 -36.8 16.5
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 4 28 -24 35
MONTH TO DATE 439 564 -125 542
SINCE MAR 1 439 564 -125 542
SINCE JUL 1 4616 5926 -1310 5557
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 31 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 40 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 18.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 47
LOWEST 8
AVERAGE 28
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 50 71 1997
MINIMUM TEMPERATURE (F) 24 -8 1965
SUNRISE AND SUNSET
MARCH 18 2026.........SUNRISE 7:12 AM MDT SUNSET 7:16 PM MDT
MARCH 19 2026.........SUNRISE 7:11 AM MDT SUNSET 7:17 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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