Climatological Report (Seasonal)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
977 CXUS51 KOKX 021757 RRA CLSISP NYCCLSISP 000 TTAA00 OKX 021752 CLIMATE REPORT NATIONAL WEATHER SERVICE NEW YORK, NY 1252 PM EST TUE MAR 02 2021 ................................... ...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM 12/1/2020 TO 2/28/2021... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1963 TO 2021 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE NORMAL .............................................................. TEMPERATURE (F) RECORD HIGH 77 12/07/1998 LOW -14 02/13/1967 HIGHEST 63 12/13 MM MM LOWEST 13 02/08 MM MM 02/09 AVG. MAXIMUM 40.9 40.4 0.5 AVG. MINIMUM 27.3 25.6 1.7 MEAN 34.1 33.0 1.1 DAYS MAX >= 90 0 0.0 0.0 DAYS MAX <= 32 11 17.0 -6.0 DAYS MIN <= 32 69 68.4 0.6 DAYS MIN <= 0 0 0.1 -0.1 PRECIPITATION (INCHES) RECORD MAXIMUM 22.25 1979 MINIMUM 5.38 2002 TOTALS 10.57 10.96 -0.39 13.58 DAILY AVG. 0.12 0.12 -0.00 DAYS >= .01 35 30.9 4.1 DAYS >= .10 21 19.5 1.5 DAYS >= .50 9 7.5 1.5 DAYS >= 1.00 2 2.4 -0.4 GREATEST 24 HR. TOTAL 1.05 12/25 TO 12/25 STORM TOTAL MM (MM/DD(HH)) SNOWFALL (INCHES) RECORDS TOTAL 57.8 2014 24 HR TOTAL 23.4 MM TOTALS 33.5 19.2 14.3 LIQUID EQUIV 3.40 1.90 1.50 SINCE 7/1 33.5 19.7 13.8 LIQUID 7/1 3.35 DAYS >= TRACE 25 10.0 15.0 DAYS >= 1.0 7 6.0 1.0 GREATEST SNOW DEPTH 11 02/02 02/08 24 HR TOTAL 10.3 02/01 TO 02/01 STORM TOTAL MM (MM/DD(HH)) DEGREE DAYS HEATING TOTAL 2749 2879 -130 SINCE 7/1 3520 3895 -375 COOLING TOTAL 0 0 0 SINCE 1/1 0 0 0 .............................................................. WIND (MPH) AVERAGE WIND SPEED 10.3 HIGHEST WIND SPEED/DIRECTION 40/030 DATE 02/01 HIGHEST GUST SPEED/DIRECTION 54/030 DATE 02/01 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.63 NUMBER OF DAYS FAIR 12 NUMBER OF DAYS PC 47 NUMBER OF DAYS CLOUDY 31 AVERAGE RH (PERCENT) 71 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 1 HEAVY RAIN 7 RAIN 11 LIGHT RAIN 28 FREEZING RAIN 0 LT FREEZING RAIN 6 HAIL 0 HEAVY SNOW 3 SNOW 6 LIGHT SNOW 18 SLEET 12 FOG 44 FOG W/VIS <= 1/4 MILE 8 HAZE 8 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$