Climatological Report (Monthly) Issued by NWS Upton, NY
000
CXUS51 KOKX 011213
CLMISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
639 AM EST MON JAN 01 2024
...................................
...THE ISLIP NY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2023...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 77 12/07/1998
LOW 12/31/1963
HIGHEST 61 12/18 MM MM 58 12/03
12/06
12/23
LOWEST 22 12/23 MM MM 8 12/24
AVG. MAXIMUM 49.1 44.4 4.7 44.7
AVG. MINIMUM 35.4 29.8 5.6 29.0
MEAN 42.2 37.1 5.1 36.8
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 2.9 -2.9 3
DAYS MIN <= 32 11 20.9 -9.9 21
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 8.91 1996
MINIMUM 0.90 1985
TOTALS 8.56 4.71 3.85 4.42
DAILY AVG. 0.28 0.15 0.13 0.14
DAYS >= .01 8 11.8 -3.8 11
DAYS >= .10 7 7.8 -0.8 9
DAYS >= .50 5 3.3 1.7 2
DAYS >= 1.00 3 1.4 1.6 1
GREATEST
24 HR. TOTAL 3.07 12/27 TO 12/28 1.79 12/06 TO 12/07
STORM TOTAL 3.04 1.33
(MM/DD(HH)) MM
SNOWFALL (INCHES)
RECORDS
TOTAL 25.3 2009
24 HR TOTAL MM
TOTALS T 4.5 -4.5 0.4
LIQUID EQUIV T 0.40 -0.40 0.00
SINCE 7/1 T 5.0 -5.0 MM
LIQUID 7/1 -0.10 0.50 -0.60 MM
DAYS >= TRACE 1 2.6 -1.6 2
DAYS >= 1.0 0 1.5 -1.5 0
GREATEST
SNOW DEPTH 0 MM MM
24 HR TOTAL MM MM
STORM TOTAL 0.0 0.4
(MM/DD(HH)) MM
DEGREE DAYS
HEATING TOTAL 698 865 -167 867
SINCE 7/1 1587 1803 -216 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 955 885 70 MM
................................................................
WIND (MPH)
AVERAGE WIND SPEED 8.6
HIGHEST WIND SPEED/DIRECTION MM DATE MM
HIGHEST GUST SPEED/DIRECTION 51/130 DATE 12/18
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.66
NUMBER OF DAYS FAIR 7
NUMBER OF DAYS PC 11
NUMBER OF DAYS CLOUDY 13
AVERAGE RH (PERCENT) 74
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 7
LIGHT RAIN 13 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 1 SLEET 0
FOG 16 FOG W/VIS <= 1/4 MILE 6
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$