Climatological Report (Annual)
Issued by NWS Chicago, IL

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary Off
Versions: 1 2 3 4 5 6 7 8 9

000
CXUS53 KLOT 011325
CLARFD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
716 AM CST SUN JAN 1 2017

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

...THE ROCKFORD IL CLIMATE SUMMARY FOR THE YEAR OF 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1905 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             112   07/14/1936
 LOW              -27   01/10/1982
HIGHEST            94   07/24        MM      MM       92  08/15
                        07/21
LOWEST            -13   12/19        MM      MM      -16  02/28
AVG. MAXIMUM     61.1              59.3     1.8     59.5
AVG. MINIMUM     42.6              39.2     3.4     40.0
MEAN             51.9              49.2     2.7     49.7
DAYS MAX >= 90     11              14.9    -3.9       13
DAYS MAX <= 32     45              46.1    -1.1       50
DAYS MIN <= 32    115             133.5   -18.5      121
DAYS MIN <= 0      11              11.6    -0.6       23

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        56.48   1973
 MINIMUM        22.87   1910
TOTALS          35.16             36.24   -1.08    40.03
DAILY AVG.       0.10              0.10    0.00     0.11
DAYS >= .01       123             119.2     3.8      109
DAYS >= .10        67              67.3    -0.3       71
DAYS >= .50        22              23.0    -1.0       25
DAYS >= 1.00       11               8.2     2.8        9
GREATEST
 24 HR. TOTAL    1.64   07/23 TO 07/23              2.91

SNOWFALL (INCHES)
RECORDS
 TOTAL           84.3   2008
 24 HR TOTAL       MM
 SNOW DEPTH        27   01/16/1979
TOTALS           26.1              36.7   -10.6     45.8
SINCE 7/1        16.1              13.1     3.0     14.0
SNOWDEPTH AVG.      1                MM      MM        1
DAYS >= TRACE      67              28.7    38.3       54
DAYS >= 1.0         8              11.0    -3.0       12
GREATEST
 SNOW DEPTH         9   12/20                         12
                        12/19
                        12/18
 24 HR TOTAL      5.3   12/04 TO 12/04              10.5

DEGREE_DAYS
HEATING TOTAL    5809              6569    -760     6234
 SINCE 7/1       2139              2561    -422     1871
COOLING TOTAL    1103               820     283      825
 SINCE 1/1       1103               820     283      825

FREEZE DATES
RECORD
 EARLIEST     09/13/1975
 LATEST       05/27/1992
EARLIEST                        10/07
LATEST                          05/01
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.6
HIGHEST WIND SPEED/DIRECTION    41/260    DATE  02/19
HIGHEST GUST SPEED/DIRECTION    61/270    DATE  02/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR           66
NUMBER OF DAYS PC            156
NUMBER OF DAYS CLOUDY        144

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             63     MIXED PRECIP               1
HEAVY RAIN               25     RAIN                      47
LIGHT RAIN              132     FREEZING RAIN              0
LT FREEZING RAIN          8     HAIL                       4
HEAVY SNOW                1     SNOW                      16
LIGHT SNOW               62     SLEET                      9
FOG                     170     FOG W/VIS <= 1/4 MILE     14
HAZE                     48

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

$$





USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.