Climatological Report (Monthly)
Issued by NWS
Issued by NWS
700 CXUS52 KKEY 011511 CLMMTH CLIMATE REPORT NATIONAL WEATHER SERVICE KEY WEST FL 1111 AM EDT TUE OCT 1 2024 ................................... ...THE MARATHON CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2024... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1950 TO 2024 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 97 09/17/2023 09/16/2023 LOW 66 09/22/1959 09/28/1954 09/04/1953 HIGHEST 94 09/12 97 09/16 09/17 LOWEST 77 09/26 74 09/21 09/23 AVG. MAXIMUM 90.3 89.9 0.4 92.9 AVG. MINIMUM 81.5 78.4 3.1 80.1 MEAN 85.9 84.2 1.7 86.5 DAYS MAX >= 90 19 19.0 0.0 26 DAYS MAX <= 32 0 0.0 0.0 0 DAYS MIN <= 32 0 0.0 0.0 0 DAYS MIN <= 0 0 0.0 0.0 0 PRECIPITATION (INCHES) RECORD MAXIMUM 19.59 1959 MINIMUM 0.22 1961 TOTALS 3.18 6.37 -3.19 7.49 DAILY AVG. 0.11 0.21 -0.10 0.25 DAYS >= .01 17 15.1 1.9 12 DAYS >= .10 11 9.1 1.9 8 DAYS >= .50 0 3.6 -3.6 4 DAYS >= 1.00 0 1.4 -1.4 3 GREATEST 24 HR. TOTAL 0.66 09/24 TO 09/25 DEGREE DAYS HEATING TOTAL 0 0 0 0 SINCE 7/1 0 0 0 0 COOLING TOTAL 636 574 62 655 SINCE 1/1 4304 4044 260 4964 ................................................................ WIND (MPH) AVERAGE WIND SPEED 7.5 HIGHEST WIND SPEED/DIRECTION 33/170 DATE 09/26 HIGHEST GUST SPEED/DIRECTION 56/160 DATE 09/26 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.20 NUMBER OF DAYS FAIR 26 NUMBER OF DAYS PC 4 NUMBER OF DAYS CLOUDY 0 AVERAGE RH (PERCENT) 78 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 13 MIXED PRECIP 0 HEAVY RAIN 12 RAIN 9 LIGHT RAIN 18 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 0 LIGHT SNOW 0 SLEET 0 FOG 11 FOG W/VIS <= 1/4 MILE 0 HAZE 6 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$ MARATHON DAILY RECORDS, SEPTEMBER 2024 AND 2024-TO-DATE RECORD SEP 2024 2024 ====== ======== ======== MAXIMUM TEMPERATURE 0 3 COOL MAXIMUM TEMPERATURE 0 0 WARM MINIMUM TEMPERATURE 11 45 MINIMUM TEMPERATURE 0 0 RAINFALL 0 4 TOP 10 WARMEST SEPTEMBERS ON RECORD FOR MARATHON RANKING YEAR AVERAGE (DEG F) ======= ==== =============== 1 2023 86.5 2 1987 86.0 3 2024 85.9 <--- 2022 85.9 5 2002 85.7 6 2000 85.4 2011 85.1 8 1989 85.0 1998 84.9 10 2020 84.8 2019 84.8 2018 84.8 2006 84.8 ROSS