Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 130727
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT WED MAY 13 2026
...................................
...THE CASPER WY CLIMATE SUMMARY FOR MAY 12 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 75 5:04 PM 87 1960 65 10 84
MINIMUM 36 5:06 AM 16 1953 36 0 42
AVERAGE 56 50 6
PRECIPITATION (IN)
YESTERDAY 0.00 1.26 1989 0.07 -0.07 0.00
MONTH TO DATE 0.32 0.83 -0.51 0.34
SINCE MAR 1 1.76 3.08 -1.32 3.26
SINCE JAN 1 2.30 4.13 -1.83 3.98
SNOWFALL (IN)
YESTERDAY 0.0 6.3 1980 0.1 -0.1 0.0
MONTH TO DATE T 1.7 -1.7 0.3
SINCE MAR 1 11.4 22.5 -11.1 16.0
SINCE JUL 1 27.1 70.8 -43.7 26.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 9 15 -6 2
MONTH TO DATE 178 204 -26 149
SINCE MAR 1 1384 1793 -409 1698
SINCE JUL 1 5561 7155 -1594 6713
COOLING
YESTERDAY 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 18 HIGHEST WIND DIRECTION E (80)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (90)
AVERAGE WIND SPEED 8.0
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 82 5:00 AM
LOWEST 20 4:00 PM
AVERAGE 51
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 88 2013
MINIMUM TEMPERATURE (F) 36 22 1983
SUNRISE AND SUNSET
MAY 13 2026...........SUNRISE 5:45 AM MDT SUNSET 8:20 PM MDT
MAY 14 2026...........SUNRISE 5:44 AM MDT SUNSET 8:21 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$