Climatological Report (Annual)
Issued by NWS
Issued by NWS
653 CXUS55 KRIW 130305 CLAP60 CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 1252 PM MST TUE JAN 05 2021 ................................... ...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR THE YEAR OF 2020... CLIMATE NORMAL PERIOD: 1981 TO 2010 CLIMATE RECORD PERIOD: 1998 TO 2021 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 86 07/14/2002 08/01/2000 07/31/2000 LOW -38 02/24/2003 HIGHEST 85 MM LOWEST -25 MM AVG. MAXIMUM 45.9 -0.6 AVG. MINIMUM 18.6 -1.7 MEAN 32.3 PRECIPITATION (INCHES) RECORD MAXIMUM 33.75 2017 MINIMUM 14.06 2001 TOTALS 23.16 20.30 2.86 DEGREE DAYS HEATING TOTAL 11863 COOLING TOTAL 0 .............................................................. WIND (MPH) HIGHEST WIND SPEED/DIRECTION 22/290 DATE 09/26 HIGHEST GUST SPEED/DIRECTION 39/260 DATE 05/06 39/270 06/06 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 RAIN 80 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 SNOW 102 FOG 0 FOG W/VIS <= 1/4 MILE 0 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$