Climatological Report (Monthly)
Issued by NWS
Issued by NWS
506 CXUS55 KRIW 011742 CLMLND CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 1122 AM MDT TUE OCT 01 2024 ...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR LANDER FOR THE MONTH OF SEPTEMBER 2024... ...OFFICIAL CLIMATE DATA FOR THE MONTH OF SEPTEMBER 2024 WILL BE AVAILABLE IN APPROXIMATELY 60 DAYS FROM THE NATIONAL CENTERS FOR ENVIRONMENTAL INFORMATION (HTTP://WWW.NCDC.NOAA.GOV/CDO- WEB/DATASETS). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW ...LANDER WAS DRIER AND WARMER THAN NORMAL IN SEPTEMBER.... THE AVERAGE TEMPERATURE FOR LANDER IN SEPTEMBER WAS 64.7 DEGREES WHICH WAS 5.1 DEGREES ABOVE NORMAL. IT WAS THE 3RD WARMEST SEPTEMBER ON RECORD. THE WARMEST READING FOR THE MONTH WAS 91 DEGREES ON THE 1ST AND 2ND. THE HIGH ON THE 25TH WAS 90 DEGREES AND BROKE THE 2015 RECORD OF 89. THE HIGH ON THE 29TH OF 90 DEGREES BROKE THE RECORD FOR THE LATEST DAY OF THE YEAR WITH A HIGH OF 90 DEGREES OR MORE. PREVIOUSLY IT WAS ON SEPTEMBER 26TH IN 2015.THE COLDEST TEMPERATURE WAS 36 DEGREES ON THE 22ND. PRECIPITATION FOR THE MONTH WAS 0.40 INCHES...WHICH IS 41 PERCENT OF NORMAL. THE WETTEST 24-HOUR PERIOD WAS THE 3RD-4TH WHEN 0.31 INCHES OF PRECIPITATION FELL. NO PRECIPITATION RECORDS WERE BROKEN. THE HIGHEST WIND GUST WAS 71 MPH AND OCCURRED ON THE 15TH FROM THE SOUTH. ...THE LANDER WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1891 TO 2024 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 99 09/04/2022 LOW 7 09/22/1895 HIGHEST 91 09/01 09/02 LOWEST 36 09/22 AVG. MAXIMUM 80.8 74.6 6.2 AVG. MINIMUM 48.6 44.6 4.0 MEAN 64.7 59.6 5.1 DAYS MAX >= 90 4 DAYS MAX <= 32 0 DAYS MIN <= 32 0 DAYS MIN <= 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 5.64 1923 MINIMUM T 2010 TOTALS 0.40 0.98 -0.58 0.56 DAILY AVG. 0.01 0.03 -0.02 DAYS >= .01 5 DAYS >= .10 1 DAYS >= .50 0 DAYS >= 1.00 0 GREATEST 24 HR. TOTAL 0.31 09/03 TO 09/04 STORM TOTAL 0.26 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 84 195 -111 SINCE 7/1 102 233 -131 COOLING TOTAL 83 32 51 SINCE 1/1 644 484 160 .............................................................. WIND (MPH) AVERAGE WIND SPEED 7.3 RESULTANT WIND SPEED/DIRECTION 3/240 HIGHEST WIND SPEED/DIRECTION 48/190 DATE 09/17 HIGHEST GUST SPEED/DIRECTION 71/190 DATE 09/15 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.05 NUMBER OF DAYS FAIR 29 NUMBER OF DAYS PC 1 NUMBER OF DAYS CLOUDY 0 AVERAGE RH (PERCENT) 35 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 4 MIXED PRECIP 0 HEAVY RAIN 0 RAIN 4 LIGHT RAIN 6 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 1 FOG W/VIS <= 1/4 MILE 0 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. LOOKING AHEAD TO OCTOBER 2024. THE AVERAGE HIGH TEMPERATURE ON THE FIRST OF THE MONTH IS 67 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 38 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 52 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 26. THE AVERAGE MONTHLY PRECIPITATION IS 1.40 INCHES. THE AVERAGE SNOWFALL IS 10.5 INCHES. $$