135 CXUS51 KOKX 021333 CCA CLSISP CLIMATE REPORT NATIONAL WEATHER SERVICE UPTON NY 351 PM EST MON DEC 1 2008 ................................... ...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM 9/1/2008 TO 11/30/2008... CLIMATE NORMAL PERIOD 1971 TO 2000 CLIMATE RECORD PERIOD 1986 TO 2008 WEATHER OBSERVED NORMAL DEPART LAST YEAR'S VALUE DATE(S) VALUE FROM VALUE NORMAL ............................................................. TEMPERATURE (F) RECORD HIGH 92 09/07/1998 LOW 11 11/24/1989 HIGHEST 84 09/15 MM MM 09/02 LOWEST 19 11/23 MM MM AVG. MAXIMUM 63.1 64.2 -1.1 AVG. MINIMUM 46.8 45.8 1.0 MEAN 55.0 55.0 0.0 DAYS MAX >= 90 0 0.2 -0.2 DAYS MAX <= 32 1 0.1 0.9 DAYS MIN <= 32 17 11.0 6.0 DAYS MIN <= 0 0 0.0 0.0 PRECIPITATION (INCHES) RECORD MAXIMUM 18.55 2005 MINIMUM 4.02 2001 TOTALS 13.63 10.88 2.75 6.50 DAILY AVG. 0.15 0.12 0.03 DAYS >= .01 28 27.3 0.7 DAYS >= .10 20 17.3 2.7 DAYS >= .50 10 7.7 2.3 DAYS >= 1.00 3 3.1 -0.1 GREATEST 24 HR. TOTAL 2.45 09/25 TO 09/26 STORM TOTAL MM (MM/DD(HH)) MM SNOWFALL (INCHES) RECORDS TOTAL 7.6 1989 24 HR TOTAL MM TOTALS T MM MM LIQUID EQUIV T MM MM SINCE 7/1 T MM MM LIQUID 7/1 T DAYS >= TRACE 1 MM MM DAYS >= 1.0 0 0.1 -0.1 GREATEST SNOW DEPTH 0 MM 24 HR TOTAL T 11/30 TO 11/30 STORM TOTAL MM (MM/DD(HH)) MM DEGREE_DAYS HEATING TOTAL 1012 992 20 SINCE 7/1 1013 993 20 COOLING TOTAL 124 79 45 SINCE 1/1 890 770 120 FREEZE DATES RECORD EARLIEST MM LATEST MM EARLIEST MM LATEST MM .............................................................. WIND (MPH) AVERAGE WIND SPEED 7.7 HIGHEST WIND SPEED/DIRECTION 32/050 DATE 10/28 HIGHEST GUST SPEED/DIRECTION 43/180 DATE 10/25 SKY COVER POSSIBLE SUNSHINE (PERCENT) MM NUMBER OF DAYS FAIR 32 NUMBER OF DAYS PC 36 NUMBER OF DAYS CLOUDY 23 AVERAGE RH (PERCENT) 66 WEATHER CONDITIONS. NUMBER OF DAYS WITH THUNDERSTORM 4 MIXED PRECIP 0 HEAVY RAIN 8 RAIN 18 LIGHT RAIN 31 FREEZING RAIN 0 LT FREEZING RAIN 0 HAIL 0 HEAVY SNOW 0 SNOW 1 LIGHT SNOW 1 SLEET 1 FOG 42 FOG W/VIS <= 1/4 MILE 6 HAZE 29 - INDICATES NEGATIVE NUMBERS. R INDICATES RECORD WAS SET OR TIED. MM INDICATES DATA IS MISSING. T INDICATES TRACE AMOUNT. $$