Climatological Report (Annual) Issued by NWS Upton, NY
000
CXUS51 KOKX 090551
CLAISP
NYCCLAISP 000
TTAA00 OKX 090409
CLIMATE REPORT...CORRECTED
NATIONAL WEATHER SERVICE NEW YORK, NY
1043 PM EST FRI JAN 08 2021
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR THE YEAR OF 2020...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1963 TO 2021
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 104 07/03/1966
LOW -14 02/13/1967
HIGHEST 95 07/27 MM MM 99 07/21
07/28
LOWEST 13 02/15 MM MM 3 01/31
AVG. MAXIMUM 63.0 60.3 2.7 61.5
AVG. MINIMUM 46.8 44.3 2.5 45.3
MEAN 54.9 52.3 2.6 53.4
DAYS MAX >= 90 8 4.8 3.2 8
DAYS MAX <= 32 5 18.3 -13.3 11
DAYS MIN <= 32 73 97.9 -24.9 107
DAYS MIN <= 0 0 0.1 -0.1 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 65.32 1989
MINIMUM MM MM
TOTALS 43.46 46.24 -2.78 48.73
DAILY AVG. 0.12 0.13 -0.01 0.13
DAYS >= .01 129 118.9 10.1 145
DAYS >= .10 79 75.2 3.8 90
DAYS >= .50 28 30.5 -2.5 38
DAYS >= 1.00 8 11.8 -3.8 10
GREATEST
24 HR. TOTAL 2.75 09/10 TO 09/10 2.18
STORM TOTAL MM MM
(MM/DD(HH)) MM
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
24 HR TOTAL 23.4 01/23/2016
SNOW DEPTH 26 02/09/1978
TOTALS 10.0 24.8 -14.8 12.8
LIQUID EQUIV 1.00 2.40 -1.40 1.30
SINCE 7/1 7.5 5.9 1.6 MM
LIQUID 7/1 0.75 0.50 0.25 MM
SNOWDEPTH AVG. 0 0
DAYS >= TRACE 15 12.3 2.7 26
DAYS >= 1.0 3 7.5 -4.5 6
GREATEST
SNOW DEPTH 5 12/18 2 03/02
12/03
24 HR TOTAL 7.4 12/16 TO 12/17 2.0 02/12 TO 02/12
STORM TOTAL 7.4 MM
(MM/DD(HH)) MM
DEGREE DAYS
HEATING TOTAL 4644 5426 -782 5091
SINCE 7/1 1624 1926 -302 MM
COOLING TOTAL 1059 787 272 985
SINCE 1/1 1059 787 272 985
................................................................
WIND (MPH)
AVERAGE WIND SPEED 9.3
RESULTANT WIND SPEED/DIRECTION 2/270
HIGHEST WIND SPEED/DIRECTION 49/170 DATE 08/04
HIGHEST GUST SPEED/DIRECTION 69/210 DATE 08/04
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.61
NUMBER OF DAYS FAIR 58
NUMBER OF DAYS PC 191
NUMBER OF DAYS CLOUDY 117
AVERAGE RH (PERCENT) 72
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 29 MIXED PRECIP 0
HEAVY RAIN 38 RAIN 54
LIGHT RAIN 159 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 2
HEAVY SNOW 1 SNOW 5
LIGHT SNOW 12 SLEET 4
FOG 166 FOG W/VIS <= 1/4 MILE 39
HAZE 11
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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