Climatological Report (Monthly)
Issued by NWS

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CXUS53 KLOT 011233 CCA
CLMORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
717 AM CDT SUN APR 1 2018

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF MARCH 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1871 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              88   03/29/1986
 LOW              -12   03/04/1873
HIGHEST            58   03/31                         82  03/24
LOWEST             19   03/13                         16  03/15
AVG. MAXIMUM     44.7              46.6    -1.9     47.1
AVG. MINIMUM     29.1              29.2    -0.1     31.8
MEAN             36.9              37.9    -1.0     39.5
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               2.9    -2.9        3
DAYS MIN <= 32     23              19.6     3.4       17
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.58   1922
 MINIMUM         0.29   1910
TOTALS           1.74              2.50   -0.76     4.01
DAILY AVG.       0.06              0.08   -0.02     0.13
DAYS >= .01         9              11.1    -2.1       14
DAYS >= .10         5               5.5    -0.5        9
DAYS >= .50         1               1.5    -0.5        2
DAYS >= 1.00        0               0.4    -0.4        1
GREATEST
 24 HR. TOTAL    0.81   03/01 TO 03/01           03/30 TO 03/30
                                                          03/13 TO 03/13
                                                          03/13 TO 03/13

SNOWFALL (INCHES)
RECORDS
 TOTAL           23.1   1926
TOTALS            2.6               5.6    -3.0      7.8
SINCE 7/1        32.9              35.1    -2.2     26.1
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         1               1.7    -0.7
GREATEST
 SNOW DEPTH         1   03/14
 24 HR TOTAL      2.2   03/13 TO 03/13

DEGREE_DAYS
HEATING TOTAL     867               841      26      785
 SINCE 7/1       5325              5575    -250     4710
COOLING TOTAL       0                 1      -1        0
 SINCE 1/1          0                 1      -1        0
....................................................

WIND (MPH)
AVERAGE WIND SPEED              10.5
RESULTANT WIND SPEED/DIRECTION   5/032
HIGHEST WIND SPEED/DIRECTION    30/210    DATE  03/31
HIGHEST GUST SPEED/DIRECTION    40/210    DATE  03/31


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       4
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       3
LIGHT SNOW                4     SLEET                      1
FOG                       9     FOG W/VIS <= 1/4 MILE      1
HAZE                      3

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$



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