The result was clear and served to make September 2019 one of the warmest Septembers on record. In fact, it was Denver\u2019s second warmest September on record. Thornton wasn\u2019t as warm but here too, it was our second warmest September since Thornton Weather launched 13 years ago.<\/p>\n
Overall, Thornton saw an average temperature for the month of 67.0 degrees. This was well above Denver\u2019s long term average temperature for September of 63.4 degrees. Out at DIA where the Mile High City\u2019s official measurements are taken, it was even warmer with an average of 69.3 degrees for the month.<\/p>\n
Temperatures in Thornton ranged from a high of 101 degrees on the 1st and 2nd down to a low of 41.7 degrees on the morning of the 26th.\u00a0 Denver\u2019s maximum temperature for the month of 100 degrees came on the 2nd and its coldest of 40 degrees on the 22nd.<\/p>\n
Denver\u2019s 100 degree reading on the 2nd was not only a record high for the date, but it also was the latest in the year a 100 degree reading has ever been recorded. The old record was August 16th in 2002. Record high temperatures of 98 degrees were also recorded on the 1st and 5th<\/sup>.<\/p>\n In terms of precipitation, Denver averages 0.96 inches during September. Thornton and Denver recorded identical totals in September 2019 of 0.41 inches, less than half of the average.<\/p>\n Click here to view Thornton\u2019s September 2019 climate report<\/a>.<\/p>\n For the second month in a row, Thornton saw temperatures well above normal and precipitation well below average. While the first half of 2019 started out cool and wet, the second appears to be headed the opposite direction. High pressure was the dominating feature for the month. This served to keep precipitation away and colder … Continue reading September 2019 weather recap: Thornton sees another very warm, very dry month<\/span> ![\"Thornton,](\"https:\/\/www.thorntonweather.com\/blog\/wp-content\/uploads\/2019\/10\/2019-09-Temps-590x295.png\")
<\/a>![\"Thornton,](\"https:\/\/www.thorntonweather.com\/blog\/wp-content\/uploads\/2019\/10\/2019-09-Precip-590x295.png\")
<\/a>CLIMATE REPORT\r\nNATIONAL WEATHER SERVICE DENVER\/BOULDER CO\r\n826 AM MDT TUE OCT 1 2019\r\n\r\n...................................\r\n\r\n...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2019...\r\n\r\nCLIMATE NORMAL PERIOD 1981 TO 2010\r\nCLIMATE RECORD PERIOD 1872 TO 2019\r\n\r\nWEATHER OBSERVED NORMAL DEPART LAST YEAR`S\r\n VALUE DATE(S) VALUE FROM VALUE DATE(S)\r\n NORMAL\r\n................................................................\r\nTEMPERATURE (F)\r\nRECORD\r\n HIGH 100 09\/02\/2019\r\n LOW 17 09\/29\/1985\r\n\r\nHIGHEST 100R 09\/02 91 9 96 09\/13\r\nLOWEST 40 09\/22 35 5 36 09\/29\r\n 09\/25\r\nAVG. MAXIMUM 85.5 78.5 7.0 82.7\r\nAVG. MINIMUM 53.2 48.3 4.9 52.8\r\nMEAN 69.3 63.4 5.9 67.8\r\nDAYS MAX >= 90 5 3.4 1.6 9\r\nDAYS MAX <= 32 0 0.0 0.0 0\r\nDAYS MIN <= 32 0 0.8 -0.8 0\r\nDAYS MIN <= 0 0 0.0 0.0 0\r\n\r\nPRECIPITATION (INCHES)\r\nRECORD\r\n MAXIMUM 5.61 2013\r\n MINIMUM T 1892\r\n 1944\r\nTOTALS 0.41 0.96 -0.55 0.18\r\nDAILY AVG. 0.01 0.03 -0.02 0.01\r\nDAYS >= .01 3 6.5 -3.5 5\r\nDAYS >= .10 2 3.3 -1.3 0\r\nDAYS >= .50 0 0.6 -0.6 0\r\nDAYS >= 1.00 0 0.1 -0.1 0\r\nGREATEST\r\n 24 HR. TOTAL 0.26 09\/08 TO 09\/08\r\n\r\nSNOWFALL (INCHES)\r\nRECORD SEPTEMBER 17.2 1971\r\n TOTAL 0.0 1.3\r\n\r\nDEGREE_DAYS\r\nHEATING TOTAL 22 125 -103 69\r\n SINCE 7\/1 22 141 -119 78\r\nCOOLING TOTAL 158 76 82 160\r\n SINCE 1\/1 915 764 151 1022\r\n\r\nFREEZE DATES\r\nRECORD\r\n EARLIEST 09\/08\/1962\r\n LATEST 06\/08\/2007\r\nEARLIEST 10\/07\r\nLATEST 05\/05\r\n.................................................................\r\n\r\nWIND (MPH)\r\nAVERAGE WIND SPEED 10.3\r\nRESULTANT WIND SPEED\/DIRECTION 3\/165\r\nHIGHEST WIND SPEED\/DIRECTION 43\/260 DATE 09\/08\r\nHIGHEST GUST SPEED\/DIRECTION 56\/260 DATE 09\/08\r\n\r\nSKY COVER\r\nPOSSIBLE SUNSHINE (PERCENT) MM\r\nAVERAGE SKY COVER 0.40\r\nNUMBER OF DAYS FAIR 14\r\nNUMBER OF DAYS PC 15\r\nNUMBER OF DAYS CLOUDY 1\r\n\r\nAVERAGE RH (PERCENT) 45\r\n\r\n- INDICATES NEGATIVE NUMBERS.\r\nR INDICATES RECORD WAS SET OR TIED.\r\nMM INDICATES DATA IS MISSING.\r\nT INDICATES TRACE AMOUNT.<\/pre>\n","protected":false},"excerpt":{"rendered":"