Climatological Report (Monthly)
Issued by NWS
Issued by NWS
000 CXUS55 KRIW 021621 CLMCPR CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 1021 AM MDT MON OCT 02 2023 ................................... ...THE CASPER WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1939 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 100 09/04/2022 LOW 15 09/28/1945 HIGHEST 91 09/01 LOWEST 33 09/26 AVG. MAXIMUM 78.9 75.6 3.3 AVG. MINIMUM 43.5 42.2 1.3 MEAN 61.2 58.9 2.3 DAYS MAX >= 90 1 DAYS MAX <= 32 0 DAYS MIN <= 32 0 DAYS MIN <= 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 3.40 1982 MINIMUM 0.07 1956 TOTALS 0.59 0.95 -0.36 0.81 DAILY AVG. 0.02 0.03 -0.01 DAYS >= .01 7 DAYS >= .10 2 DAYS >= .50 0 DAYS >= 1.00 0 GREATEST 24 HR. TOTAL 0.23 09/14 TO 09/14 STORM TOTAL 0.23 SNOWFALL (INCHES) TOTALS 0.0 1.5 -1.5 SINCE 7/1 0.0 1.5 -1.5 SNOWDEPTH AVG. 0 DAYS >= 1.0 0 DEGREE DAYS HEATING TOTAL 127 214 -87 SINCE 7/1 180 258 -78 COOLING TOTAL 20 30 -10 SINCE 1/1 342 442 -100 .............................................................. WIND (MPH) AVERAGE WIND SPEED 9.4 RESULTANT WIND SPEED/DIRECTION 4/240 HIGHEST WIND SPEED/DIRECTION 40/230 DATE 09/04 HIGHEST GUST SPEED/DIRECTION 56/230 DATE 09/04 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.18 NUMBER OF DAYS FAIR 24 NUMBER OF DAYS PC 6 NUMBER OF DAYS CLOUDY 0 AVERAGE RH (PERCENT) 52 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 6 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 3 LIGHT RAIN 10 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 6 FOG W/VIS <= 1/4 MILE 1 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$