Climatological Report (Monthly)
Issued by NWS

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
000
CXUS53 KLOT 011328
CLMORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
817 AM CDT SAT AUG 1 2015

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

...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR THE MONTH OF JULY 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2015

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             105   07/24/1934
 LOW               45   07/07/1983
HIGHEST            92   07/17        84       8       90  07/22
LOWEST             53   07/02        63     -10       54  07/17
AVG. MAXIMUM     81.9              84.1    -2.2     79.8
AVG. MINIMUM     62.7              63.9    -1.2     60.9
MEAN             72.3              74.0    -1.7     70.4
DAYS MAX >= 90      3               5.9    -2.9        1
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        11.15   2011
 MINIMUM         0.22   1936
TOTALS           2.85              3.70   -0.85     2.14
DAILY AVG.       0.09              0.12   -0.03     0.07
DAYS >= .01         8               9.8    -1.8       12
DAYS >= .10         5               6.0    -1.0        5
DAYS >= .50         2               2.3    -0.3        2
DAYS >= 1.00        0               1.0    -1.0        0
GREATEST
 24 HR. TOTAL    0.97   07/16 TO 07/16

DEGREE_DAYS
HEATING TOTAL      13                 4       9        5
 SINCE 7/1         13                 4       9        5
COOLING TOTAL     246               283     -37      179
 SINCE 1/1        417               502     -85      438
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.8
HIGHEST WIND SPEED/DIRECTION    32/320    DATE  07/13
HIGHEST GUST SPEED/DIRECTION    40/320    DATE  07/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            6
NUMBER OF DAYS PC             18
NUMBER OF DAYS CLOUDY          7

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              5     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       6
LIGHT RAIN               11     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      0
HAZE                      9

-  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.