Climatological Report (Monthly)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
000 CXUS51 KOKX 011804 CLMISP CLIMATE REPORT NATIONAL WEATHER SERVICE NEW YORK, NY 203 PM EDT SUN OCT 01 2023 ................................... ...THE ISLIP NY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1963 TO 2023 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 94 09/03/1973 LOW 38 09/22/1997 09/28/1989 09/20/1979 HIGHEST 92 09/06 MM MM 88 09/01 09/07 LOWEST 50 09/17 MM MM 45 09/24 AVG. MAXIMUM 75.5 74.8 0.7 76.9 AVG. MINIMUM 61.6 58.9 2.7 59.5 MEAN 68.6 66.9 1.7 68.2 DAYS MAX >= 90 4 0.2 3.8 0 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 7.50 1966 MINIMUM 0.61 2019 TOTALS 6.78 3.60 3.18 2.89 DAILY AVG. 0.23 0.12 0.11 0.10 DAYS >= .01 10 8.6 1.4 7 DAYS >= .10 9 5.5 3.5 5 DAYS >= .50 4 2.6 1.4 4 DAYS >= 1.00 3 1.0 2.0 0 GREATEST 24 HR. TOTAL 2.18 09/28 TO 09/29 0.71 09/22 TO 09/22 STORM TOTAL 2.18 0.71 (MM/DD(HH)) MM SNOWFALL (INCHES) RECORDS TOTAL 0.0 0 24 HR TOTAL 0.0 MM TOTALS 0.0 0.0 0.0 0.0 LIQUID EQUIV 0.00 0.00 0.00 0.00 SINCE 7/1 0.0 0.0 0.0 MM LIQUID 7/1 0.00 0.00 0.00 MM DAYS >= TRACE 0 0.0 0.0 0 DAYS >= 1.0 0 0.0 0.0 0 GREATEST SNOW DEPTH 0 0 MM 24 HR TOTAL MM MM STORM TOTAL 0.0 0.0 (MM/DD(HH)) MM DEGREE DAYS HEATING TOTAL 44 53 -9 35 SINCE 7/1 44 56 -12 MM COOLING TOTAL 158 108 50 140 SINCE 1/1 936 872 64 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 8.5 HIGHEST WIND SPEED/DIRECTION 28/060 DATE 09/25 HIGHEST GUST SPEED/DIRECTION 40/060 DATE 09/25 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.59 NUMBER OF DAYS FAIR 8 NUMBER OF DAYS PC 11 NUMBER OF DAYS CLOUDY 11 AVERAGE RH (PERCENT) 78 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 3 MIXED PRECIP 0 HEAVY RAIN 5 RAIN 6 LIGHT RAIN 12 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 0 HAZE 3 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$