016
CDUS45 KRIW 190045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SAT APR 18 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR APRIL 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 55 4:22 PM 80 1946 57 -2 33
2001
MINIMUM 21 5:49 AM 4 2013 28 -7 19
AVERAGE 38 42 -4 26
PRECIPITATION (IN)
TODAY 0.00 0.70 1971 0.05 -0.05 0.09
MONTH TO DATE 0.78 0.77 0.01 0.76
SINCE MAR 1 0.94 1.61 -0.67 2.09
SINCE JAN 1 1.48 2.66 -1.18 2.81
SNOWFALL (IN)
TODAY MM 0.4 MM 1.0
MONTH TO DATE 6.8 7.0 -0.2 7.7
SINCE MAR 1 8.4 17.3 -8.9 15.7
SINCE JUL 1 24.1 65.6 -41.5 26.2
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 27 23 4 39
MONTH TO DATE 370 432 -62 439
SINCE MAR 1 956 1339 -383 1288
SINCE JUL 1 5133 6701 -1568 6303
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 25 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 33 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 12.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 84
LOWEST 18
AVERAGE 51
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 57 81 1962
MINIMUM TEMPERATURE (F) 28 -4 1966
SUNRISE AND SUNSET
APRIL 18 2026.........SUNRISE 6:19 AM MDT SUNSET 7:52 PM MDT
APRIL 19 2026.........SUNRISE 6:18 AM MDT SUNSET 7:53 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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