Climatological Report (Seasonal) Issued by NWS Upton, NY
866
CXUS51 KOKX 011336 RRA
CLSISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK NY
836 AM EST SUN DEC 1 2019
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR THE SEASON, FROM
9/1/2019 TO 11/30/2019...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1963 TO 2019
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
.............................................................
TEMPERATURE (F)
RECORD
HIGH 93 09/01/2010
LOW 11 11/24/1989
HIGHEST 89 10/02 MM MM
LOWEST 20 11/14 MM MM
AVG. MAXIMUM 64.1 63.3 0.8
AVG. MINIMUM 47.1 46.7 0.4
MEAN 55.6 55.0 0.6
DAYS MAX >= 90 0 0.2 -0.2
DAYS MAX <= 32 0 0.1 -0.1
DAYS MIN <= 32 13 10.0 3.0
DAYS MIN <= 0 0 0.0 0.0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 19.26 2018
MINIMUM 4.02 2001
TOTALS 8.34 11.04 -2.70 19.26
DAILY AVG. 0.09 0.12 -0.03
DAYS >= .01 29 27.4 1.6
DAYS >= .10 18 17.4 0.6
DAYS >= .50 5 7.7 -2.7
DAYS >= 1.00 2 3.1 -1.1
GREATEST
24 HR. TOTAL 2.18 MM
STORM TOTAL MM
(MM/DD(HH)) MM
SNOWFALL (INCHES)
RECORDS
TOTAL 7.6 1989
24 HR TOTAL MM
TOTALS 0.1 0.5 -0.4
LIQUID EQUIV 0.01 0.10 -0.09
SINCE 7/1 0.1 0.5 -0.4
LIQUID 7/1 0.01
DAYS >= TRACE 2 0.2 1.8
DAYS >= 1.0 0 0.1 -0.1
GREATEST
SNOW DEPTH 0 MM
24 HR TOTAL 0.1 MM
STORM TOTAL MM
(MM/DD(HH)) MM
DEGREE_DAYS
HEATING TOTAL 941 1010 -69
SINCE 7/1 943 1016 -73
COOLING TOTAL 111 101 10
SINCE 1/1 985 787 198
..............................................................
WIND (MPH)
AVERAGE WIND SPEED 9.4
HIGHEST WIND SPEED/DIRECTION 40/300 DATE 10/17
HIGHEST GUST SPEED/DIRECTION 55/300 DATE 10/17
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.60
NUMBER OF DAYS FAIR 19
NUMBER OF DAYS PC 49
NUMBER OF DAYS CLOUDY 23
AVERAGE RH (PERCENT) 72
WEATHER CONDITIONS. NUMBER OF DAYS WITH
0
7
0
0
1
0
3
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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