Climatological Report (Annual)
Issued by NWS Upton, NY

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000 CXUS51 KOKX 021806 CLAISP CLIMATE REPORT NATIONAL WEATHER SERVICE NEW YORK NY 103 PM EST TUE JAN 2 2018 ................................... ...THE ISLIP NY CLIMATE SUMMARY FOR THE YEAR OF 2017... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1963 TO 2018 WEATHER OBSERVED NORMAL DEPART LAST YEAR`S VALUE DATE(S) VALUE FROM VALUE DATE(S) NORMAL ................................................................ TEMPERATURE (F) RECORD HIGH 102 07/05/1999 LOW -7 01/15/1988 01/22/1984 HIGHEST 93 07/21 MM MM 97 08/14 06/13 LOWEST 4 01/09 MM MM 0 02/14 AVG. MAXIMUM 62.3 60.3 2.0 63.3 AVG. MINIMUM 46.2 44.3 1.9 46.2 MEAN 54.2 52.3 1.9 54.7 DAYS MAX >= 90 8 4.8 3.2 15 DAYS MAX <= 32 20 18.3 1.7 11 DAYS MIN <= 32 90 97.9 -7.9 84 DAYS MIN <= 0 0 0.1 -0.1 1 PRECIPITATION (INCHES) RECORD MAXIMUM 65.32 1989 MINIMUM 34.41 1985 TOTALS 43.44 46.24 -2.80 34.99 DAILY AVG. 0.12 0.13 -0.01 0.09 DAYS >= .01 120 118.9 1.1 114 DAYS >= .10 76 75.2 0.8 64 DAYS >= .50 27 30.5 -3.5 29 DAYS >= 1.00 11 11.8 -0.8 7 GREATEST 24 HR. TOTAL 4.02 MM 12/31 TO 12/31 12/31 TO 12/31 12/31 TO 12/31 STORM TOTAL MM MM (MM/DD(HH)) MM 12/31(00) TO 12/31(00) 12/31(00) TO 12/31(00)1 12/31(00) TO 12/31(00)1 SNOWFALL (INCHES) RECORDS TOTAL MM MM 24 HR TOTAL 23.4 MM SNOW DEPTH MM MM TOTALS 42.1 24.8 17.3 44.6 LIQUID EQUIV 4.21 2.50 1.71 4.46 SINCE 7/1 6.0 5.9 0.1 3.2 LIQUID 7/1 0.60 0.60 0.00 0.32 SNOWDEPTH AVG. 0 MM MM 0 DAYS >= TRACE 26 12.3 13.7 29 DAYS >= 1.0 11 7.5 3.5 6 GREATEST SNOW DEPTH 13 02/10 23 01/24 24 HR TOTAL 14.3 MM 12/31 TO 12/31 12/31 TO 12/31 12/31 TO 12/31 STORM TOTAL MM MM (MM/DD(HH)) MM 12/31(00) TO 12/31(00) 12/31(00) TO 12/31(00)1 12/31(00) TO 12/31(00)1 DEGREE_DAYS HEATING TOTAL 4815 5426 -611 4776 SINCE 7/1 MM 1927 MM MM COOLING TOTAL 972 787 185 1124 SINCE 1/1 972 787 185 1124 .................................................. WIND (MPH) AVERAGE WIND SPEED 9.4 RESULTANT WIND SPEED/DIRECTION 2/277 HIGHEST WIND SPEED/DIRECTION 41/140 DATE 10/29 HIGHEST GUST SPEED/DIRECTION 56/130 DATE 10/29 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.60 NUMBER OF DAYS FAIR 66 NUMBER OF DAYS PC 171 NUMBER OF DAYS CLOUDY 128 AVERAGE RH (PERCENT) 71 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 16 RAIN 53 LIGHT RAIN 140 FREEZING RAIN 1 LT FREEZING RAIN 2 HAIL 1 HEAVY SNOW 2 SNOW 8 LIGHT SNOW 23 SLEET 4 FOG 172 FOG W/VIS <= 1/4 MILE 40 HAZE 17 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$

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