Climatological Report (Monthly)
Issued by NWS Chicago, IL

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CXUS53 KLOT 011151
CLMRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
642 AM CDT TUE MAY 1 2018

...................................

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE MONTH OF APRIL 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1905 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              93   04/10/1930
 LOW                5   04/07/1982
HIGHEST            81   04/30                         82  04/15
LOWEST             16   04/07                         30  04/01
AVG. MAXIMUM     50.8              60.7    -9.9     63.9
AVG. MINIMUM     30.0              38.1    -8.1     42.5
MEAN             40.4              49.4    -9.0     53.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      1               0.1     0.9        0
DAYS MIN <= 32     19               7.5    11.5        2
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         9.92   1973
 MINIMUM         0.28   1915
TOTALS           1.16              3.35   -2.19     7.13
DAILY AVG.       0.04              0.11   -0.07     0.24
DAYS >= .01        12              11.3     0.7       16
DAYS >= .10         5               6.4    -1.4       11
DAYS >= .50         0               2.4    -2.4        6
DAYS >= 1.00        0               0.8    -0.8        2
GREATEST
 24 HR. TOTAL    0.34   04/14 TO 04/14           04/15 TO 04/15

SNOWFALL (INCHES)
RECORDS
 TOTAL            9.0   1936
TOTALS            4.1               0.9     3.2        T
SINCE 7/1        34.8              36.7    -1.9     22.1
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         2               0.3     1.7
GREATEST
 SNOW DEPTH         2R  04/09
 24 HR TOTAL      1.6   04/09 TO 04/09

DEGREE_DAYS
HEATING TOTAL     728               476     252      354
 SINCE 7/1       6560              6340     220     5230
COOLING TOTAL       0                 8      -8        8
 SINCE 1/1          0                 8      -8        8
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.0
HIGHEST WIND SPEED/DIRECTION    38/070    DATE  04/14
HIGHEST GUST SPEED/DIRECTION    50/080    DATE  04/14


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          3     HAIL                       0
HEAVY SNOW                0     SNOW                       4
LIGHT SNOW                8     SLEET                      3
FOG                      13     FOG W/VIS <= 1/4 MILE      1
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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