Climatological Report (Daily)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
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CDUS41 KOKX 210627
CLIISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
227 AM EDT FRI AUG 21 2026
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR AUGUST 20 2026...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 84 1046 AM 94 1983 81 3 70
MINIMUM 65 1159 PM 53 2008 66 -1 62
AVERAGE 75 73 2 66
PRECIPITATION (IN)
YESTERDAY 3.27R 2.61 2001 0.14 3.13 0.32
MONTH TO DATE 6.62 2.82 3.80 0.47
SINCE JUN 1 15.05 10.08 4.97 7.99
SINCE JAN 1 30.31 28.88 1.43 23.72
SNOWFALL (IN)
YESTERDAY 0.0 MM MM 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE JUN 1 10 31 -21 18
SINCE JUL 1 0 1 -1 0
COOLING
YESTERDAY 10 8 2 1
MONTH TO DATE 240 189 51 184
SINCE JUN 1 740 653 87 853
SINCE JAN 1 795 682 113 865
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 25 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION NE (50)
AVERAGE WIND SPEED 8.4
SKY COVER
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 900 PM
LOWEST 55 1000 AM
AVERAGE 76
..........................................................
THE ISLIP NY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 94 1995
MINIMUM TEMPERATURE (F) 66 47 1977
SUNRISE AND SUNSET
AUGUST 21 2026........SUNRISE 609 AM EDT SUNSET 742 PM EDT
AUGUST 22 2026........SUNRISE 610 AM EDT SUNSET 740 PM EDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$