


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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798 CDUS45 KRIW 160729 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 129 AM MDT THU OCT 16 2025 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR OCTOBER 15 2025... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1939 TO 2025 WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST VALUE (LST) VALUE VALUE FROM YEAR NORMAL ................................................................... TEMPERATURE (F) YESTERDAY MAXIMUM 63 2:14 PM 80 1958 60 3 74 1991 MINIMUM 34 2:00 AM 17 2018 31 3 32 AVERAGE 49 45 4 PRECIPITATION (IN) YESTERDAY 0.28 1.28 1994 0.04 0.24 0.00 MONTH TO DATE 0.97 0.66 0.31 0.00 SINCE SEP 1 3.52 1.61 1.91 0.24 SINCE JAN 1 10.83 10.44 0.39 7.22 SNOWFALL (IN) YESTERDAY 0.0 2.0 1999 0.2 -0.2 0.0 MONTH TO DATE 0.0 2.9 -2.9 0.0 SINCE SEP 1 0.0 4.4 -4.4 0.0 SINCE JUL 1 0.0 4.4 -4.4 0.0 SNOW DEPTH 0 DEGREE DAYS HEATING YESTERDAY 16 20 -4 12 MONTH TO DATE 201 249 -48 143 SINCE SEP 1 314 463 -149 245 SINCE JUL 1 324 508 -184 283 COOLING YESTERDAY 0 0 0 0 MONTH TO DATE 0 0 0 0 SINCE SEP 1 17 30 -13 63 SINCE JAN 1 467 442 25 538 ................................................................... WIND (MPH) HIGHEST WIND SPEED 21 HIGHEST WIND DIRECTION E (80) HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION E (90) AVERAGE WIND SPEED 8.4 SKY COVER POSSIBLE SUNSHINE MM AVERAGE SKY COVER 0.7 WEATHER CONDITIONS THE FOLLOWING WEATHER WAS RECORDED YESTERDAY. THUNDERSTORM RAIN LIGHT RAIN FOG FOG W/VISIBILITY <= 1/4 MILE HAZE RELATIVE HUMIDITY (PERCENT) HIGHEST 100 6:00 AM LOWEST 62 1:00 PM AVERAGE 81 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TODAY NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 59 83 1991 MINIMUM TEMPERATURE (F) 31 18 1992 SUNRISE AND SUNSET OCTOBER 16 2025.......SUNRISE 7:21 AM MDT SUNSET 6:21 PM MDT OCTOBER 17 2025.......SUNRISE 7:22 AM MDT SUNSET 6:19 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$