Climatological Report (Seasonal) Issued by NWS Upton, NY
000
CXUS51 KOKX 031410
CLSISP
NYCCLSISP 000
TTAA00 OKX 031407
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
1006 AM EDT THU JUN 03 2021
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
3/1/2021 TO 5/31/2021...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2021
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..............................................................
TEMPERATURE (F)
RECORD
HIGH 98 05/20/1996
LOW 0 03/19/1967
03/18/1967
HIGHEST 90 05/22 MM MM
LOWEST 21 03/02 MM MM
AVG. MAXIMUM 60.5 58.1 2.4
AVG. MINIMUM 41.5 41.3 0.2
MEAN 51.0 49.7 1.3
DAYS MAX >= 90 1 0.0 1.0
DAYS MAX <= 32 1 1.0 0.0
DAYS MIN <= 32 21 20.2 0.8
DAYS MIN <= 0 0 0.0 0.0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 22.91 1998
MINIMUM 6.00 1995
TOTALS 12.87 11.85 1.02 9.99
DAILY AVG. 0.14 0.13 0.01
DAYS >= .01 28 33.7 -5.7
DAYS >= .10 22 20.7 1.3
DAYS >= .50 10 7.6 2.4
DAYS >= 1.00 6 2.8 3.2
GREATEST
24 HR. TOTAL 2.66 05/28 TO 05/29
STORM TOTAL 1.80
(MM/DD(HH))
SNOWFALL (INCHES)
RECORDS
TOTAL 36.5 2018
24 HR TOTAL 16.0 MM
TOTALS T 7.1 -7.1
LIQUID EQUIV T 0.70 -0.70
SINCE 7/1 33.5 31.8 1.7
LIQUID 7/1 3.35
DAYS >= TRACE 4 3.0 1.0
DAYS >= 1.0 0 2.0 -2.0
GREATEST
SNOW DEPTH 0
24 HR TOTAL MM
STORM TOTAL 0.0
(MM/DD(HH))
DEGREE DAYS
HEATING TOTAL 1305 1435 -130
SINCE 7/1 4825 5154 -329
COOLING TOTAL 39 29 10
SINCE 1/1 39 29 10
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WIND (MPH)
AVERAGE WIND SPEED 10.1
HIGHEST WIND SPEED/DIRECTION 39/300 DATE 03/14
HIGHEST GUST SPEED/DIRECTION 53/290 DATE 03/02
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.55
NUMBER OF DAYS FAIR 26
NUMBER OF DAYS PC 37
NUMBER OF DAYS CLOUDY 29
AVERAGE RH (PERCENT) 63
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 3 MIXED PRECIP 0
HEAVY RAIN 11 RAIN 18
LIGHT RAIN 36 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 4 SLEET 1
FOG 34 FOG W/VIS <= 1/4 MILE 8
HAZE 4
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$