Climatological Report (Seasonal) Issued by NWS Chicago, IL
315
CXUS53 KLOT 012304
CLSRFD
CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
504 PM CST MON MAR 01 2021
...................................
...THE ROCKFORD IL CLIMATE SUMMARY FOR THE SEASON, FROM
12/1/2020 TO 2/28/2021...
CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1905 TO 2021
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 70 02/22/2017
02/25/2000
LOW -31 01/31/2019
HIGHEST 62 12/23 MM MM 59 12/25
LOWEST -12 02/17 MM MM -10 02/14
AVG. MAXIMUM 32.1 32.2 -0.1 36.9
AVG. MINIMUM 17.0 16.3 0.7 21.4
MEAN 24.5 24.2 0.3 29.2
DAYS MAX >= 90 0 0.0 0.0 MM
DAYS MAX <= 32 35 40.7 -5.7 MM
DAYS MIN <= 32 86 81.5 4.5 MM
DAYS MIN <= 0 13 11.4 1.6 MM
PRECIPITATION (INCHES)
RECORD
MAXIMUM 10.38 1946
MINIMUM 1.28 2003
TOTALS 4.61 4.76 -0.15 4.82
DAILY AVG. 0.05 0.05 -0.00 0.05
DAYS >= .01 27 27.8 -0.8 MM
DAYS >= .10 13 12.6 0.4 MM
DAYS >= .50 4 2.3 1.7 MM
DAYS >= 1.00 0 0.5 -0.5 MM
GREATEST
24 HR. TOTAL 0.70 12/11 TO 12/11 0.71 01/10 TO 01/10
SNOWFALL (INCHES)
RECORDS
TOTAL 65.1 2008
TOTALS 32.8 29.2 3.6 19.9
SINCE 7/1 34.5 31.0 3.5 28.7
DAYS >= TRACE 41 MM MM MM
DAYS >= 1.0 12 8.7 3.3 MM
GREATEST
SNOW DEPTH 17 02/16 7 01/25
24 HR TOTAL 5.7 12/29 TO 12/29 3.2
DEGREE DAYS
HEATING TOTAL 3591 3668 -77 3236
SINCE 7/1 4745 5002 -257 MM
COOLING TOTAL 0 0 0 0
SINCE 1/1 0 0 0 0
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WIND (MPH)
AVERAGE WIND SPEED 8.6
HIGHEST WIND SPEED/DIRECTION 33/290 DATE 02/04
HIGHEST GUST SPEED/DIRECTION 48/240 DATE 12/23
SKY COVER
AVERAGE SKY COVER 0.69
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 2
LIGHT RAIN 15 FREEZING RAIN 0
LT FREEZING RAIN 7 HAIL 0
HEAVY SNOW 0 SNOW 5
LIGHT SNOW 41 SLEET 5
FOG 33 FOG W/VIS <= 1/4 MILE 5
HAZE 41
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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