Climatological Report (Daily)
Issued by NWS

Home | Current Version | Previous Version | Graphics & Text | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
209
CDUS43 KLOT 220636
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1235 AM CST SUN JAN 22 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR JANUARY 21 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2017


WEATHER ITEM   OBSERVED TIME   RECORD YEAR NORMAL DEPARTURE LAST
                VALUE   (LST)  VALUE       VALUE  FROM      YEAR
                                                  NORMAL
..................................................................
TEMPERATURE (F)
 YESTERDAY
  MAXIMUM         59    238 PM  62    1906  31     28       29
  MINIMUM         40   1028 PM -22    1984  16     24        9
  AVERAGE         50                        24     26       19

PRECIPITATION (IN)
  YESTERDAY        T             1.49 1916   0.05  -0.05     0.00
  MONTH TO DATE    2.73                      1.23   1.50     0.65
  SINCE DEC 1      4.50                      3.48   1.02     5.52
  SINCE JAN 1      2.73                      1.23   1.50     0.65

SNOWFALL (IN)
  YESTERDAY        0.0           5.0  1958   0.4   -0.4      0.0
  MONTH TO DATE    0.4                       7.2   -6.8      5.9
  SINCE DEC 1     18.1                      15.4    2.7     10.4
  SINCE JUL 1     18.1                      16.8    1.3     21.6
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY       15                        42    -27       46
  MONTH TO DATE  797                       868    -71      906
  SINCE DEC 1   2028                      2023      5     1706
  SINCE JUL 1   2857                      3279   -422     2679

 COOLING
  YESTERDAY        0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE DEC 1      0                         0      0        0
  SINCE JAN 1      0                         0      0        0
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    20   HIGHEST WIND DIRECTION     S (190)
  HIGHEST GUST SPEED    27   HIGHEST GUST DIRECTION    SW (240)
  AVERAGE WIND SPEED     8.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.5


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  LIGHT RAIN
  FOG
  FOG W/VISIBILITY <= 1/4 MILE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST   100           100 AM
 LOWEST     62           100 PM
 AVERAGE    81

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   31        59      1909
 MINIMUM TEMPERATURE (F)   16       -17      1936
                                             1883


SUNRISE AND SUNSET
JANUARY 22 2017.......SUNRISE   713 AM CST   SUNSET   454 PM CST
JANUARY 23 2017.......SUNRISE   712 AM CST   SUNSET   455 PM CST


-  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.