


Climatological Report (Monthly)
Issued by NWS
Issued by NWS
321 CXUS53 KDTX 021059 CLMMBS CLIMATE REPORT NATIONAL WEATHER SERVICE DETROIT/PONTIAC MI 637 AM EDT TUE SEP 02 2025 ................................... ...THE TRI CITIES MI CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2025... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1912 TO 2025 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 103 08/06/1918 LOW 37 08/29/1982 HIGHEST 93 08/10 MM MM LOWEST 46 08/26 MM MM 08/27 AVG. MAXIMUM 79.5 80.0 -0.5 AVG. MINIMUM 59.0 59.4 -0.4 MEAN 69.2 69.7 -0.5 DAYS MAX >= 90 3 1.4 1.6 DAYS MAX <= 32 0 0.0 0.0 DAYS MIN <= 32 0 0.0 0.0 DAYS MIN <= 0 0 0.0 0.0 PRECIPITATION (INCHES) RECORD MAXIMUM 9.43 2012 MINIMUM T 2024 TOTALS 3.13 3.85 -0.72 DAILY AVG. 0.10 0.12 -0.02 DAYS >= .01 6 10.5 -4.5 DAYS >= .10 5 6.0 -1.0 DAYS >= .50 2 2.6 -0.6 DAYS >= 1.00 1 1.1 -0.1 GREATEST 24 HR. TOTAL 1.66 08/12 TO 08/12 SNOWFALL (INCHES) RECORDS TOTAL 0.0 0 TOTALS 0.0 0.0 0.0 LIQUID EQUIV 0.00 0.00 0.00 SINCE 7/1 0.0 0.0 0.0 LIQUID 7/1 0.00 DAYS >= TRACE 0 0.0 0.0 DAYS >= 1.0 0 0.0 0.0 GREATEST SNOW DEPTH 0 24 HR TOTAL 0.0 DEGREE DAYS HEATING TOTAL 33 19 14 SINCE 7/1 34 25 9 COOLING TOTAL 169 165 4 SINCE 1/1 688 565 123 FREEZE DATES RECORD EARLIEST 09/12 (1943) LATEST 05/28 (1949) EARLIEST 10/17 (2024) LATEST 04/30 (2025) .............................................................. WIND (MPH) AVERAGE WIND SPEED 7.1 HIGHEST WIND SPEED/DIRECTION 26/280 DATE 08/12 HIGHEST GUST SPEED/DIRECTION 37/320 DATE 08/12 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.28 NUMBER OF DAYS FAIR 20 NUMBER OF DAYS PC 10 NUMBER OF DAYS CLOUDY 1 AVERAGE RH (PERCENT) 72 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 4 MIXED PRECIP 0 HEAVY RAIN 4 RAIN 3 LIGHT RAIN 8 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 13 FOG W/VIS <= 1/4 MILE 2 HAZE 4 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$