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
411
CDUS43 KLOT 272137
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
436 PM CDT THU APR 27 2017


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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR APRIL 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         62   1230 AM  87    1986  64     -2       49
  MINIMUM         44   1144 AM  29    1945  43      1       41
  AVERAGE         53                        53      0       45

PRECIPITATION (IN)
  TODAY            0.14          2.13 1959   0.12   0.02     0.47
  MONTH TO DATE    3.16                      3.02   0.14     1.73
  SINCE MAR 1      7.17                      5.52   1.65     5.07
  SINCE JAN 1     11.56                      9.04   2.52     7.14

SNOWFALL (IN)
  TODAY            0.0           0.2  1950   0.0    0.0      0.0
  MONTH TO DATE    0.0                       1.2   -1.2      1.1
  SINCE MAR 1      7.8                       6.8    1.0      3.7
  SINCE JUL 1     26.1                      36.3  -10.2     31.2

DEGREE DAYS
 HEATING
  TODAY           12                        12      0       20
  MONTH TO DATE  281                       458   -177      460
  SINCE MAR 1   1066                      1299   -233     1125
  SINCE JUL 1   4991                      6033  -1042     5133

 COOLING
  TODAY            0                         0      0        0
  MONTH TO DATE   12                         0     12        7
  SINCE MAR 1     12                         1     11        7
  SINCE JAN 1     12                         1     11        7
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    28   HIGHEST WIND DIRECTION    SW (240)
  HIGHEST GUST SPEED    35   HIGHEST GUST DIRECTION     W (250)
  AVERAGE WIND SPEED    17.2


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 1.0


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


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    97          1200 AM
 LOWEST     71          1100 AM
 AVERAGE    84

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


THE CHICAGO-OHARE IL CLIMATE NORMALS FOR TOMORROW
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   64        86      1915
 MINIMUM TEMPERATURE (F)   43        28      1992


SUNRISE AND SUNSET
APRIL 27 2017.........SUNRISE   553 AM CDT   SUNSET   746 PM CDT
APRIL 28 2017.........SUNRISE   551 AM CDT   SUNSET   747 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.