Climatological Report (Seasonal) Issued by NWS Upton, NY
000
CXUS51 KOKX 021702
CLSISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
102 PM EDT THU JUN 2 2011
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2011 TO 5/31/2011...
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
NORMAL
.............................................................
TEMPERATURE (F)
RECORD
HIGH 98 05/20/1996
LOW 5 03/04/2009
HIGHEST 86 05/30 MM MM
LOWEST 18 03/03 MM MM
AVG. MAXIMUM 59.1 58.5 0.6
AVG. MINIMUM 43.0 40.2 2.8
MEAN 51.0 49.4 1.6
DAYS MAX >= 90 0 0.6 -0.6
DAYS MAX <= 32 1 1.1 -0.1
DAYS MIN <= 32 19 20.2 -1.2
DAYS MIN <= 0 0 0.0 0.0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 22.91 1998
MINIMUM 6.00 1995
TOTALS 11.25 12.79 -1.54 15.04
DAILY AVG. 0.12 0.14 -0.02
DAYS >= .01 32 33.0 -1.0
DAYS >= .10 23 20.6 2.4
DAYS >= .50 6 8.0 -2.0
DAYS >= 1.00 3 3.1 -0.1
GREATEST
24 HR. TOTAL 1.65 MM
STORM TOTAL MM
(MM/DD(HH)) MM
SNOWFALL (INCHES)
RECORDS
TOTAL 18.0 1996
24 HR TOTAL 9.7 03/02/2009 TO 03/02/2009
TOTALS 2.1 MM MM
LIQUID EQUIV 0.21 MM MM
SINCE 7/1 55.3 MM MM
LIQUID 7/1 5.53
DAYS >= TRACE 5 MM MM
DAYS >= 1.0 1 1.7 -0.7
GREATEST
SNOW DEPTH 2 03/24
24 HR TOTAL 1.4 MM
STORM TOTAL MM
(MM/DD(HH)) MM
DEGREE_DAYS
HEATING TOTAL 1315 1458 -143
SINCE 7/1 MM 5363 MM
COOLING TOTAL 58 15 43
SINCE 1/1 58 15 43
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WIND (MPH)
AVERAGE WIND SPEED 10.3
HIGHEST WIND SPEED/DIRECTION 40/140 DATE 04/17
HIGHEST GUST SPEED/DIRECTION 55/130 DATE 04/17
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.70
NUMBER OF DAYS FAIR 8
NUMBER OF DAYS PC 39
NUMBER OF DAYS CLOUDY 45
AVERAGE RH (PERCENT) 70
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 6 RAIN 17
LIGHT RAIN 39 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 2
LIGHT SNOW 2 SLEET 4
FOG 50 FOG W/VIS <= 1/4 MILE 18
HAZE 16
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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