Climatological Report (Monthly)
Issued by NWS Chicago, IL

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CXUS53 KLOT 011351
CLMRFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
835 AM CDT MON MAY 1 2017

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

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE MONTH OF APRIL 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1905 TO 2017

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            82   04/15        73       9       83  04/25
                                                          04/18
LOWEST             30   04/01        44     -14       21  04/09
AVG. MAXIMUM     63.9              60.7     3.2     59.9
AVG. MINIMUM     42.5              38.1     4.4     38.7
MEAN             53.2              49.4     3.8     49.3
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.1    -0.1        0
DAYS MIN <= 32      2               7.5    -5.5        7
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         9.92   1973
 MINIMUM         0.28   1915
TOTALS           7.13              3.35    3.78     2.90
DAILY AVG.       0.24              0.11    0.13     0.10
DAYS >= .01        16              11.3     4.7       11
DAYS >= .10        11               6.4     4.6        6
DAYS >= .50         6               2.4     3.6        2
DAYS >= 1.00        2               0.8     1.2        1
GREATEST
 24 HR. TOTAL    1.53   04/15 TO 04/15           04/05 TO 04/06
                                                          04/06 TO 04/06
                                                          04/06 TO 04/06

SNOWFALL (INCHES)
RECORDS
 TOTAL            9.0   1936
TOTALS              T               0.9    -0.9      0.4
SINCE 7/1        22.1              36.7   -14.6     24.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.3    -0.3
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL        T   04/05 TO 04/05

DEGREE_DAYS
HEATING TOTAL     354               476    -122      471
 SINCE 7/1       5230              6340   -1110     5336
COOLING TOTAL       8                 8       0        7
 SINCE 1/1          8                 8       0        7
.......................................................

WIND (MPH)
AVERAGE WIND SPEED              10.7
HIGHEST WIND SPEED/DIRECTION    31/200    DATE  04/26
HIGHEST GUST SPEED/DIRECTION    41/190    DATE  04/26


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              8     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       6
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                0     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      0
HAZE                      1

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$



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