Climatological Report (Monthly)
Issued by NWS
Issued by NWS
000 CXUS55 KRIW 021639 CLMLND CLIMATE REPORT NATIONAL WEATHER SERVICE RIVERTON WY 1021 AM MDT MON OCT 02 2023 ...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR LANDER FOR THE MONTH OF SEPTEMBER 2023... ...OFFICIAL CLIMATE DATA FOR THE MONTH OF SEPTEMBER 2023 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 WARMER AND DRIER THAN NORMAL IN SEPTEMBER.... THE AVERAGE TEMPERATURE FOR LANDER IN SEPTEMBER WAS 62.5 DEGREES WHICH WAS 2.9 DEGREES ABOVE NORMAL. THE WARMEST READING FOR THE MONTH WAS 88 DEGREES ON THE 1ST. THE COLDEST TEMPERATURE WAS 36 DEGREES ON THE 23RD. NO TEMPERATURE RECORDS WERE BROKEN. PRECIPITATION FOR THE MONTH WAS 0.56 INCHES...WHICH IS 57 PERCENT OF NORMAL. THE WETTEST 24-HOUR PERIOD WAS THE 4TH-5TH WHEN 0.44 INCHES OF PRECIPITATION FELL. THE 4TH HAD 0.42 INCHES AND BROKE THE 2008 RECORD OF 0.18. THE HIGHEST WIND GUST OCCURRED ON THE 13TH WITH 62 MPH FROM THE SOUTHWEST. ...THE LANDER WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023... CLIMATE NORMAL PERIOD: 1991 TO 2020 CLIMATE RECORD PERIOD: 1891 TO 2023 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 88 09/01 LOWEST 36 09/23 AVG. MAXIMUM 77.4 74.6 2.8 AVG. MINIMUM 47.6 44.6 3.0 MEAN 62.5 59.6 2.9 DAYS MAX >= 90 0 DAYS MAX <= 32 0 DAYS MIN <= 32 0 DAYS MIN <= 0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 5.64 1923 MINIMUM T 2010 TOTALS 0.56 0.98 -0.42 1.50 DAILY AVG. 0.02 0.03 -0.01 DAYS >= .01 7 DAYS >= .10 1 DAYS >= .50 0 DAYS >= 1.00 0 GREATEST 24 HR. TOTAL 0.44 09/04 TO 09/05 STORM TOTAL 0.42 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 96 195 -99 SINCE 7/1 142 233 -91 COOLING TOTAL 29 32 -3 SINCE 1/1 361 484 -123 .............................................................. WIND (MPH) AVERAGE WIND SPEED 6.4 RESULTANT WIND SPEED/DIRECTION 2/240 HIGHEST WIND SPEED/DIRECTION 40/200 DATE 09/13 HIGHEST GUST SPEED/DIRECTION 62/210 DATE 09/13 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.18 NUMBER OF DAYS FAIR 24 NUMBER OF DAYS PC 4 NUMBER OF DAYS CLOUDY 2 AVERAGE RH (PERCENT) 45 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 5 MIXED PRECIP 0 HEAVY RAIN 1 RAIN 1 LIGHT RAIN 10 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 3 FOG W/VIS <= 1/4 MILE 0 HAZE 0 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. LOOKING AHEAD TO OCTOBER 2023...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. $$