Climatological Report (Annual)
Issued by NWS Upton, NY

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000 CXUS51 KOKX 312226 CCA CLAISP CLIMATE REPORT...CORRECTED NATIONAL WEATHER SERVICE NEW YORK, NY 525 PM EST MON JAN 31 2022 ................................... ...THE ISLIP NY CLIMATE SUMMARY FOR THE YEAR OF 2021... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1963 TO 2021 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 104 07/03/1966 LOW -14 02/13/1967 HIGHEST 94 08/27 MM MM 95 07/27 07/28 LOWEST 13 02/08 MM MM 13 02/15 02/09 AVG. MAXIMUM 62.7 61.1 1.6 63.0 AVG. MINIMUM 46.7 45.2 1.5 46.8 MEAN 54.7 53.1 1.6 54.9 DAYS MAX >= 90 10 8.0 2.0 8 DAYS MAX <= 32 11 16.0 -5.0 5 DAYS MIN <= 32 93 98.3 -5.3 73 DAYS MIN <= 0 0 0.1 -0.1 0 PRECIPITATION (INCHES) RECORD MAXIMUM 65.32 1989 MINIMUM MM MM TOTALS 46.40 45.99 0.41 43.46 DAILY AVG. 0.13 0.13 0.00 0.12 DAYS >= .01 127 122.0 5.0 129 DAYS >= .10 76 75.7 0.3 79 DAYS >= .50 31 30.6 0.4 28 DAYS >= 1.00 14 11.5 2.5 8 GREATEST 24 HR. TOTAL 4.57 2.75 09/10 TO 09/10 STORM TOTAL 4.47 MM (MM/DD(HH)) MM SNOWFALL (INCHES) RECORDS TOTAL 71.0 1978 24 HR TOTAL MM MM SNOW DEPTH 26 02/09/1978 02/08/1978 TOTALS 26.3 31.8 -5.5 10.0 LIQUID EQUIV 2.60 3.10 -0.50 1.00 SINCE 7/1 0.3 5.0 -4.7 MM LIQUID 7/1 0.03 0.50 -0.47 MM SNOWDEPTH AVG. 0 0 DAYS >= TRACE 29 13.0 16.0 15 DAYS >= 1.0 5 8.0 -3.0 3 GREATEST SNOW DEPTH 11 02/02 5 12/18 02/08 24 HR TOTAL 10.3 7.4 12/16 TO 12/17 STORM TOTAL 10.3 7.4 (MM/DD(HH)) MM DEGREE DAYS HEATING TOTAL 4663 5183 -520 4644 SINCE 7/1 1454 1803 -349 MM COOLING TOTAL 1046 885 161 1059 SINCE 1/1 1046 885 161 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 9.0 RESULTANT WIND SPEED/DIRECTION 2/290 HIGHEST WIND SPEED/DIRECTION 40/030 DATE 02/01 HIGHEST GUST SPEED/DIRECTION 55/270 DATE 12/06 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.59 NUMBER OF DAYS FAIR 82 NUMBER OF DAYS PC 162 NUMBER OF DAYS CLOUDY 121 AVERAGE RH (PERCENT) 71 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 26 MIXED PRECIP 1 HEAVY RAIN 35 RAIN 53 LIGHT RAIN 151 FREEZING RAIN 0 LT FREEZING RAIN 6 HAIL 0 HEAVY SNOW 2 SNOW 4 LIGHT SNOW 23 SLEET 12 FOG 153 FOG W/VIS <= 1/4 MILE 25 HAZE 18 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$