Climatological Report (Monthly)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
904 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. $$