Climatological Report (Annual)
Issued by NWS Upton, NY

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000 CXUS51 KOKX 011955 CLAISP CLIMATE REPORT NATIONAL WEATHER SERVICE NEW YORK NY 242 PM EST SUN JAN 1 2017 ................................... ...THE ISLIP NY CLIMATE SUMMARY FOR THE YEAR OF 2016... CLIMATE NORMAL PERIOD 1981 TO 2010 CLIMATE RECORD PERIOD 1984 TO 2016 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 97 08/14 MM MM 94 07/20 LOWEST 0 02/14 MM MM 2 02/21 02/20 AVG. MAXIMUM 63.3 60.3 3.0 61.8 AVG. MINIMUM 46.2 44.3 1.9 45.1 MEAN 54.7 52.3 2.4 53.4 DAYS MAX >= 90 15 4.8 10.2 MM DAYS MAX <= 32 11 18.3 -7.3 MM DAYS MIN <= 32 84 97.9 -13.9 MM DAYS MIN <= 0 1 0.1 0.9 MM PRECIPITATION (INCHES) RECORD MAXIMUM 65.32 1989 MINIMUM 34.41 1985 TOTALS 34.99 46.24 -11.25 38.60 DAILY AVG. 0.09 0.13 -0.04 0.11 DAYS >= .01 114 118.9 -4.9 MM DAYS >= .10 64 75.2 -11.2 MM DAYS >= .50 29 30.5 -1.5 MM DAYS >= 1.00 7 11.8 -4.8 MM GREATEST 24 HR. TOTAL 2.13 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 17.4 MM SNOW DEPTH MM MM TOTALS 44.6 24.8 19.8 63.3 LIQUID EQUIV 4.46 2.50 1.96 6.33 SINCE 7/1 3.2 5.9 -2.7 T LIQUID 7/1 0.32 0.60 -0.28 MM SNOWDEPTH AVG. 0 MM MM 2 DAYS >= TRACE 29 12.3 16.7 MM DAYS >= 1.0 6 7.5 -1.5 MM GREATEST SNOW DEPTH 23 01/24 24 01/28 24 HR TOTAL 23.4R 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 4776 5426 -650 5122 SINCE 7/1 MM 1927 MM MM COOLING TOTAL 1124 787 337 1069 SINCE 1/1 1124 787 337 1069 .................................................. WIND (MPH) AVERAGE WIND SPEED 9.4 RESULTANT WIND SPEED/DIRECTION 2/279 HIGHEST WIND SPEED/DIRECTION 44/050 DATE 01/23 HIGHEST GUST SPEED/DIRECTION 60/190 DATE 01/10 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM AVERAGE SKY COVER 0.60 NUMBER OF DAYS FAIR 74 NUMBER OF DAYS PC 205 NUMBER OF DAYS CLOUDY 87 AVERAGE RH (PERCENT) 68 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 0 MIXED PRECIP 0 HEAVY RAIN 22 RAIN 37 LIGHT RAIN 130 FREEZING RAIN 1 LT FREEZING RAIN 2 HAIL 0 HEAVY SNOW 2 SNOW 7 LIGHT SNOW 28 SLEET 3 FOG 153 FOG W/VIS <= 1/4 MILE 21 HAZE 40 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$

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