Climatological Report (Daily)
Issued by NWS

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 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
000
CDUS43 KLOT 272140
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
439 PM CDT THU JUL 27 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR JULY 27 2017...
VALID TODAY AS OF 0400 PM LOCAL TIME.

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)
 TODAY
  MAXIMUM         82    259 PM 100    1955  84     -2       89
                                      1916
  MINIMUM         73    445 AM  52    1985  64      9       68
  AVERAGE         78                        74      4       79

PRECIPITATION (IN)
  TODAY            T             4.71 1966   0.13  -0.13     0.00
  MONTH TO DATE    7.68                      3.15   4.53     5.46
  SINCE JUN 1     11.12                      6.60   4.52     8.31
  SINCE JAN 1     29.23                     19.68   9.55    21.95

SNOWFALL (IN)
  TODAY            0.0           0.0    MM   0.0    0.0      0.0
  MONTH TO DATE    T                         0.0    0.0      0.0
  SINCE JUN 1      T                         0.0    0.0      0.0
  SINCE JUL 1      T                         0.0    0.0      0.0

DEGREE DAYS
 HEATING
  TODAY            0                         0      0        0
  MONTH TO DATE    0                         0      0        0
  SINCE JUN 1      3                        48    -45       13
  SINCE JUL 1      0                         0      0        0

 COOLING
  TODAY           13                         9      4       14
  MONTH TO DATE  274                       242     32      293
  SINCE JUN 1    504                       407     97      509
  SINCE JAN 1    537                       461     76      583
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    22   HIGHEST WIND DIRECTION    NE (40)
  HIGHEST GUST SPEED    26   HIGHEST GUST DIRECTION    NE (40)
  AVERAGE WIND SPEED    10.5


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.8


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED TODAY.
  LIGHT RAIN
  FOG
  HAZE


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    87          1200 AM
 LOWEST     51           300 PM
 AVERAGE    69

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   84       100      1983
 MINIMUM TEMPERATURE (F)   64        51      1984


SUNRISE AND SUNSET
JULY 27 2017..........SUNRISE   540 AM CDT   SUNSET   815 PM CDT
JULY 28 2017..........SUNRISE   541 AM CDT   SUNSET   814 PM CDT


-  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.