CXUS51 KOKX 020049 RRA CLAISP CLIMATE REPORT NATIONAL WEATHER SERVICE NEW YORK, NY 726 PM EST THU JAN 01 2026 ................................... ...THE ISLIP NY CLIMATE SUMMARY FOR THE YEAR OF 2025... CLIMATE NORMAL PERIOD 1991 TO 2020 CLIMATE RECORD PERIOD 1963 TO 2025 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 101 06/24 MM MM 93 07/16 08/01 LOWEST 7 01/22 MM MM 10 12/23 AVG. MAXIMUM 62.7 61.1 1.6 63.2 AVG. MINIMUM 46.6 45.2 1.4 47.2 MEAN 54.7 53.1 1.6 55.2 DAYS MAX >= 90 12 8.3 3.7 6 DAYS MAX <= 32 13 16.4 -3.4 8 DAYS MIN <= 32 93 98.3 -5.3 69 DAYS MIN <= 0 0 0.1 -0.1 0 PRECIPITATION (INCHES) RECORD MAXIMUM 65.32 1989 MINIMUM MM MM TOTALS 36.91 45.99 -9.08 48.80 DAILY AVG. 0.10 0.13 -0.03 0.13 DAYS >= .01 119 122.0 -3.0 126 DAYS >= .10 78 75.7 2.3 76 DAYS >= .50 21 30.6 -9.6 30 DAYS >= 1.00 10 11.5 -1.5 18 GREATEST 24 HR. TOTAL 2.96 2.81 08/06 TO 08/07 STORM TOTAL 2.93 2.80 (MM/DD(HH)) MM SNOWFALL (INCHES) RECORDS TOTAL 71.0 1978 24 HR TOTAL 3.0 MM SNOW DEPTH 26 02/09/1978 02/08/1978 TOTALS 22.1 31.8 -9.7 13.0 LIQUID EQUIV 2.20 3.10 -0.90 1.30 SINCE 7/1 12.5 5.0 7.5 MM LIQUID 7/1 1.25 0.50 0.75 MM SNOWDEPTH AVG. 0 0 DAYS >= TRACE 23 13.4 9.6 23 DAYS >= 1.0 6 7.9 -1.9 4 GREATEST SNOW DEPTH 6 12/15 3 02/15 02/17 02/18 24 HR TOTAL 0.0 MM 0.0 STORM TOTAL 5.8 4.3 (MM/DD(HH)) MM DEGREE DAYS HEATING TOTAL 4756 5183 -427 4484 SINCE 7/1 1733 1803 -70 MM COOLING TOTAL 1104 885 219 1012 SINCE 1/1 1104 885 219 MM ................................................................ WIND (MPH) AVERAGE WIND SPEED 9.7 RESULTANT WIND SPEED/DIRECTION 3/280 HIGHEST WIND SPEED/DIRECTION 39/300 DATE 03/22 HIGHEST GUST SPEED/DIRECTION 60/290 DATE 03/22 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.58 NUMBER OF DAYS FAIR 74 NUMBER OF DAYS PC 188 NUMBER OF DAYS CLOUDY 101 AVERAGE RH (PERCENT) 66 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 15 MIXED PRECIP 0 HEAVY RAIN 26 RAIN 46 LIGHT RAIN 147 FREEZING RAIN 0 LT FREEZING RAIN 2 HAIL 0 HEAVY SNOW 2 SNOW 5 LIGHT SNOW 23 SLEET 2 FOG 140 FOG W/VIS <= 1/4 MILE 39 HAZE 34 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$