Climatological Report (Monthly) Issued by NWS Chicago, IL
000
CXUS53 KLOT 011420
CLMRFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
920 AM CDT MON MAY 01 2023
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...THE ROCKFORD IL CLIMATE SUMMARY FOR THE MONTH OF APRIL 2023...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1905 TO 2023
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
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TEMPERATURE (F)
RECORD
HIGH 93 04/10/1930
LOW 5 04/07/1982
HIGHEST 83 04/15 82 04/23
LOWEST 25 04/02 22 04/17
04/26
AVG. MAXIMUM 62.2 59.7 2.5 55.6
AVG. MINIMUM 36.2 38.5 -2.3 36.4
MEAN 49.2 49.1 0.1 46.0
DAYS MAX >= 90 0 0.0 0.0 0
DAYS MAX <= 32 0 0.1 -0.1 0
DAYS MIN <= 32 12 7.4 4.6 10
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 9.92 1973
MINIMUM 0.28 1915
TOTALS 2.68 3.75 -1.07 4.48
DAILY AVG. 0.09 0.12 -0.03 0.15
DAYS >= .01 12 11.8 0.2 17
DAYS >= .10 8 7.2 0.8 10
DAYS >= .50 2 2.6 -0.6 2
DAYS >= 1.00 0 1.0 -1.0 1
GREATEST
24 HR. TOTAL 1.06 04/04 TO 04/05 1.16
SNOWFALL (INCHES)
RECORDS
TOTAL 9.0 1936
TOTALS 0.9 0.9 0.0 2.6
SINCE 7/1 35.5 37.1 -1.6 MM
SNOWDEPTH AVG. 0 0
DAYS >= 1.0 0 0.3 -0.3 1
GREATEST
SNOW DEPTH 1 04/17 1 04/18
24 HR TOTAL 0.7R 04/16 TO 04/17 1.7
DEGREE DAYS
HEATING TOTAL 479 482 -3 568
SINCE 7/1 5907 6271 -364 MM
COOLING TOTAL 9 5 4 5
SINCE 1/1 9 7 2 MM
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WIND (MPH)
AVERAGE WIND SPEED 9.2
HIGHEST WIND SPEED/DIRECTION 32/240 DATE 04/05
HIGHEST GUST SPEED/DIRECTION 53/320 DATE 04/17
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.56
NUMBER OF DAYS FAIR 8
NUMBER OF DAYS PC 13
NUMBER OF DAYS CLOUDY 9
AVERAGE RH (PERCENT) 62
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 4 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 5
LIGHT RAIN 13 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 3
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 4 SLEET 0
FOG 11 FOG W/VIS <= 1/4 MILE 0
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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