Climatological Report (Annual)
Issued by NWS Upton, NY

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000 CXUS51 KOKX 032352 CLAISP CLIMATE REPORT NATIONAL WEATHER SERVICE NEW YORK NY 650 PM EST MON JAN 3 2011 THE ISLIP NY CLIMATE SUMMARY FOR THE YEAR OF 2010... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1986 TO 2011 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 101 07/06 MM MM 91 08/10 LOWEST 12 01/30 MM MM 2 01/17 AVG. MAXIMUM 62.2 61.3 0.9 59.5 AVG. MINIMUM 45.7 43.6 2.1 44.1 MEAN 54.0 52.5 1.5 51.8 DAYS MAX >= 90 17 7.2 9.8 3 DAYS MAX <= 32 18 17.3 0.7 25 DAYS MIN <= 32 95 98.3 -3.3 100 DAYS MIN <= 0 0 0.3 -0.3 0 PRECIPITATION (INCHES) RECORD MAXIMUM 65.32 1989 MINIMUM 34.41 1985 TOTALS 44.02 46.52 -2.50 52.70 DAILY AVG. 0.12 0.13 -0.01 0.14 DAYS >= .01 103 119.2 -16.2 134 DAYS >= .10 65 75.4 -10.4 90 DAYS >= .50 27 30.8 -3.8 42 DAYS >= 1.00 12 11.7 0.3 15 GREATEST 24 HR. TOTAL 2.66 03/29 2.23 07/23 STORM TOTAL MM MM (MM/DD(HH)) SNOWFALL (INCHES) RECORDS TOTAL 59.9 2005 24 HR TOTAL 16.7 02/12/2006 SNOW DEPTH 22 12/21/2009 TOTALS 43.4 MM MM 51.1 LIQUID EQUIV 4.34 MM MM 5.11 SINCE 7/1 14.9 MM MM 25.3 LIQUID 7/1 1.49 MM MM 2.53 SNOWDEPTH AVG. 1 MM MM 1 DAYS >= TRACE 35 MM MM 28 DAYS >= 1.0 7 7.2 -0.2 10 GREATEST SNOW DEPTH 14 12/27 22 12/21 24 HR TOTAL 11.3 12/26 14.3 12/20 STORM TOTAL MM MM (MM/DD(HH)) DEGREE_DAYS HEATING TOTAL 5014 5387 -373 5356 SINCE 7/1 1917 1902 15 1837 COOLING TOTAL 1127 770 357 657 SINCE 1/1 1127 770 357 657 ................................................................. WIND (MPH) AVERAGE WIND SPEED 9.6 RESULTANT WIND SPEED/DIRECTION 3/296 HIGHEST WIND SPEED/DIRECTION 46/010 DATE 12/26 HIGHEST GUST SPEED/DIRECTION 64/360 DATE 12/26 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM NUMBER OF DAYS FAIR 82 NUMBER OF DAYS PC 166 NUMBER OF DAYS CLOUDY 117 AVERAGE RH (PERCENT) 61 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 21 MIXED PRECIP 1 HEAVY RAIN 22 RAIN 41 LIGHT RAIN 119 FREEZING RAIN 0 LT FREEZING RAIN 2 HAIL 2 HEAVY SNOW 3 SNOW 11 LIGHT SNOW 33 SLEET 7 FOG 127 FOG W/VIS <= 1/4 MILE 13 HAZE 119 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$

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