Climatological Report (Monthly)
Issued by NWS Upton, NY
Issued by NWS Upton, NY
626
CXUS51 KOKX 011348 RRA
CLMISP
CLIMATE REPORT
NATIONAL WEATHER SERVICE NEW YORK, NY
942 AM EDT WED MAY 01 2024
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...THE ISLIP NY CLIMATE SUMMARY FOR THE MONTH OF APRIL 2024...
CLIMATE NORMAL PERIOD 1991 TO 2020
CLIMATE RECORD PERIOD 1963 TO 2024
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 94 04/17/2002
LOW 16 04/01/1969
HIGHEST 82 04/29 MM MM 84 04/13
04/14
LOWEST 33 04/26 MM MM 29 04/03
AVG. MAXIMUM 58.7 58.3 0.4 62.2
AVG. MINIMUM 42.4 41.2 1.2 44.4
MEAN 50.5 49.7 0.8 53.3
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 3.3 -3.3 1
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 9.09 1983
MINIMUM 0.98 1978
TOTALS 3.45 4.06 -0.61 4.02
DAILY AVG. 0.12 0.14 -0.02 0.13
DAYS >= .01 12 11.3 0.7 9
DAYS >= .10 7 6.8 0.2 5
DAYS >= .50 2 2.5 -0.5 3
DAYS >= 1.00 1 1.0 0.0 2
GREATEST
24 HR. TOTAL 1.42 04/03 TO 04/04 1.87 04/28 TO 04/29
STORM TOTAL 1.32 1.77
(MM/DD(HH)) MM
SNOWFALL (INCHES)
RECORDS
TOTAL 16.0 1982
24 HR TOTAL 16.0 MM
TOTALS 0.0 0.6 -0.6 0.0
LIQUID EQUIV 0.00 0.00 0.00 0.00
SINCE 7/1 10.9 31.8 -20.9 MM
LIQUID 7/1 1.09 3.10 -2.01 MM
DAYS >= TRACE 0 0.3 -0.3 0
DAYS >= 1.0 0 0.2 -0.2 0
GREATEST
SNOW DEPTH 0 0 MM
24 HR TOTAL MM MM
STORM TOTAL 0.0 0.0
(MM/DD(HH)) MM
DEGREE DAYS
HEATING TOTAL 434 460 -26 356
SINCE 7/1 4364 4959 -595 MM
COOLING TOTAL 4 2 2 12
SINCE 1/1 4 2 2 MM
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WIND (MPH)
AVERAGE WIND SPEED 10.2
HIGHEST WIND SPEED/DIRECTION 35/080 DATE 04/03
HIGHEST GUST SPEED/DIRECTION 53/060 DATE 04/03
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.65
NUMBER OF DAYS FAIR 4
NUMBER OF DAYS PC 15
NUMBER OF DAYS CLOUDY 11
AVERAGE RH (PERCENT) 68
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 3 MIXED PRECIP 0
HEAVY RAIN 4 RAIN 5
LIGHT RAIN 14 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 10 FOG W/VIS <= 1/4 MILE 1
HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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