Climatological Report (Monthly)
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
000
CXUS53 KLOT 011130
CLMORD


CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
614 AM CDT THU JUN 1 2017

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF MAY 2017...

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

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              98   05/31/1934
 LOW               27   05/02/1875
HIGHEST            87   05/16                         87  05/30
LOWEST             34   05/08                         35  05/15
AVG. MAXIMUM     67.7              70.0    -2.3     70.1
AVG. MINIMUM     48.0              48.3    -0.3     49.4
MEAN             57.9              59.1    -1.2     59.8
DAYS MAX >= 90      0               0.5    -0.5        0
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.3    -0.3        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         7.59   1945
 MINIMUM         0.30   1992
TOTALS           3.28              3.68   -0.40     5.43
DAILY AVG.       0.11              0.12   -0.01     0.18
DAYS >= .01        15              11.6     3.4       12
DAYS >= .10         9               7.2     1.8       11
DAYS >= .50         2               2.2    -0.2        6
DAYS >= 1.00        0               0.8    -0.8        0
GREATEST
 24 HR. TOTAL    0.87   05/10 TO 05/10

DEGREE_DAYS
HEATING TOTAL     235               225      10      225
 SINCE 7/1       5284              6292   -1008     5415
COOLING TOTAL      21                44     -23       67
 SINCE 1/1         33                54     -21       74
..................................................

WIND (MPH)
AVERAGE WIND SPEED              10.7
RESULTANT WIND SPEED/DIRECTION   1/347
HIGHEST WIND SPEED/DIRECTION    39/260    DATE  05/17
HIGHEST GUST SPEED/DIRECTION    50/260    DATE  05/17


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              7     MIXED PRECIP               0
HEAVY RAIN                6     RAIN                       6
LIGHT RAIN               16     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      0
HAZE                      4

-  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.