Climatological Report (Monthly)
Issued by NWS Chicago, IL

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
000
CXUS53 KLOT 011505
CLMLOT


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
856 AM CST THU FEB 1 2018

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

...THE ROMEOVILLE  WFO CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1992 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              65   01/07/2008
 LOW              -24   01/16/2009
HIGHEST            58   01/11        MM      MM       59
LOWEST            -16   01/02        MM      MM       -2
AVG. MAXIMUM     30.7              30.6     0.1     35.1
AVG. MINIMUM     14.0              15.8    -1.8     22.6
MEAN             22.4              23.2    -0.8     28.9

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         6.16   2003
 MINIMUM         0.88   2008
TOTALS           1.64              1.93   -0.29     2.67
DAILY AVG.       0.05              0.06   -0.01     0.09
DAYS >= .01         9              10.2    -1.2       12
DAYS >= .10         4               5.3    -1.3        9
DAYS >= .50         1               1.6    -0.6        2
DAYS >= 1.00        0               0.4    -0.4        0
GREATEST
 24 HR. TOTAL    0.78   01/22 TO 01/22

SNOWFALL (INCHES)
RECORDS
 TOTAL           30.1   2014
TOTALS            5.4              10.8    -5.4      0.9
SINCE 7/1        10.8              21.0   -10.2     18.1
SNOWDEPTH AVG.      2                MM      MM        0
DAYS >= 1.0         2               3.8    -1.8
GREATEST
 SNOW DEPTH         5   01/16
 24 HR TOTAL      3.2   01/15 TO 01/15

DEGREE_DAYS
HEATING TOTAL    1314              1295      19     1114
 SINCE 7/1       3626              3681     -55     3223
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              11.3
HIGHEST WIND SPEED/DIRECTION    35/200    DATE  01/10
HIGHEST GUST SPEED/DIRECTION    41/200    DATE  01/10

AVERAGE RH (PERCENT)     79


-  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.