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
000
CDUS43 KLOT 010632
CLIORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
132 AM CDT SUN OCT 1 2017


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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR SEPTEMBER 30 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         68    125 PM  92    1971  69     -1       64
  MINIMUM         53   1155 PM  29    1984  48      5       60
  AVERAGE         61                        58      3       62

PRECIPITATION (IN)
  YESTERDAY        0.00          1.27 1896   0.09  -0.09     0.10
  MONTH TO DATE    0.32                      3.21  -2.89     1.76
  SINCE SEP 1      0.32                      3.21  -2.89     1.76
  SINCE JAN 1     32.06                     28.34   3.72    28.74

SNOWFALL (IN)
  YESTERDAY        0.0           0.0    MM   0.0    0.0      0.0
  MONTH TO DATE    0.0                       0.0    0.0      0.0
  SINCE SEP 1      0.0                       0.0    0.0      0.0
  SINCE JUL 1      T                         0.0    0.0      0.0
  SNOW DEPTH       0

DEGREE DAYS
 HEATING
  YESTERDAY        4                         8     -4        3
  MONTH TO DATE   37                       106    -69       23
  SINCE SEP 1     37                       105    -68       23
  SINCE JUL 1     42                       118    -76       23

 COOLING
  YESTERDAY        0                         1     -1        0
  MONTH TO DATE  179                        92     87      165
  SINCE SEP 1    179                        92     87      165
  SINCE JAN 1    962                       832    130     1130
..................................................................


WIND (MPH)
  HIGHEST WIND SPEED    14   HIGHEST WIND DIRECTION     E (100)
  HIGHEST GUST SPEED    17   HIGHEST GUST DIRECTION     E (100)
  AVERAGE WIND SPEED     7.7


SKY COVER
  POSSIBLE SUNSHINE  MM
  AVERAGE SKY COVER 0.3


WEATHER CONDITIONS
 THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
  NO SIGNIFICANT WEATHER WAS OBSERVED.


RELATIVE HUMIDITY (PERCENT)
 HIGHEST    71          1000 PM
 LOWEST     34           300 PM
 AVERAGE    53

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


THE CHICAGO-OHARE CLIMATE NORMALS FOR TODAY
                         NORMAL    RECORD    YEAR
 MAXIMUM TEMPERATURE (F)   68        92      1971
 MINIMUM TEMPERATURE (F)   48        32      1974
                                             1886


SUNRISE AND SUNSET
OCTOBER  1 2017.......SUNRISE   649 AM CDT   SUNSET   633 PM CDT
OCTOBER  2 2017.......SUNRISE   650 AM CDT   SUNSET   631 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.