


Climatological Report (Daily)
Issued by NWS
Issued by NWS
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044 CDUS45 KRIW 180045 CLICPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 645 PM MDT FRI OCT 17 2025 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR OCTOBER 17 2025... VALID TODAY AS OF 0600 PM LOCAL TIME. 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) TODAY MAXIMUM 58 3:31 PM 79 2003 59 -1 69 MINIMUM 38 4:40 AM 19 1968 30 8 37 1996 2012 AVERAGE 48 45 3 53 PRECIPITATION (IN) TODAY T 0.31 1971 0.04 -0.04 0.25 MONTH TO DATE 1.32 0.74 0.58 0.25 SINCE SEP 1 3.87 1.69 2.18 0.49 SINCE JAN 1 11.18 10.52 0.66 7.47 SNOWFALL (IN) TODAY MM 0.3 MM 0.0 MONTH TO DATE 0.0 3.4 -3.4 0.0 SINCE SEP 1 0.0 4.9 -4.9 0.0 SINCE JUL 1 0.0 4.9 -4.9 0.0 SNOW DEPTH MM DEGREE DAYS HEATING TODAY 17 20 -3 12 MONTH TO DATE 239 289 -50 166 SINCE SEP 1 352 503 -151 268 SINCE JUL 1 362 548 -186 306 COOLING TODAY 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 28 HIGHEST WIND DIRECTION SW (220) HIGHEST GUST SPEED 37 HIGHEST GUST DIRECTION SW (220) AVERAGE WIND SPEED 20.5 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 86 LOWEST 40 AVERAGE 63 .......................................................... THE CASPER WY CLIMATE NORMALS FOR TOMORROW NORMAL RECORD YEAR MAXIMUM TEMPERATURE (F) 59 78 2003 MINIMUM TEMPERATURE (F) 30 16 2006 SUNRISE AND SUNSET OCTOBER 17 2025.......SUNRISE 7:22 AM MDT SUNSET 6:19 PM MDT OCTOBER 18 2025.......SUNRISE 7:23 AM MDT SUNSET 6:18 PM MDT - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$