Climatological Report (Monthly)
Issued by NWS

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000
CXUS53 KLOT 011438
CLMORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
900 AM CDT WED APR 1 2015

...................................
...THE CHICAGO-OHARE IL CLIMATE SUMMARY FOR THE MONTH OF MARCH 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              88   03/29/1986
 LOW              -12   03/04/1873

HIGHEST            73   03/16        46      27       68  03/31
LOWEST              0   03/06        28     -28       -2  03/03

AVG. MAXIMUM     44.4              46.6    -2.2     40.9
AVG. MINIMUM     26.3              29.2    -2.9     22.4
MEAN             35.4              37.9    -2.5     31.7
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      6               2.9     3.1        8
DAYS MIN <= 32     22              19.6     2.4       24
DAYS MIN <= 0       1               0.0     1.0        1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.58   1922
 MINIMUM         0.29   1910

TOTALS           1.10              2.50   -1.40     1.71

DAILY AVG.       0.04              0.08   -0.04     0.06
DAYS >= .01         7              11.1    -4.1       11
DAYS >= .10         3               5.5    -2.5        6
DAYS >= .50         1               1.5    -0.5        0
DAYS >= 1.00        0               0.4    -0.4        0
GREATEST
 24 HR. TOTAL    0.61   03/23 TO 03/23

SNOWFALL (INCHES)
RECORDS
 TOTAL           23.1   1926

TOTALS            7.1               5.6     1.5     12.3

SINCE 7/1        50.7              35.4    15.3     80.6
SNOWDEPTH AVG.      2                MM      MM        2
DAYS >= 1.0         1               1.7    -0.7        4
GREATEST
 SNOW DEPTH         9   03/03                          6  03/06
                        03/01                             03/02
                                                          03/03
 24 HR TOTAL      5.6   03/23 TO 03/23

DEGREE_DAYS
HEATING TOTAL     910               841      69     1025
 SINCE 7/1       6090              5575     515     6440
COOLING TOTAL       0                 1      -1        0
 SINCE 1/1          0                 1      -1        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.8
HIGHEST WIND SPEED/DIRECTION    30/190    DATE  03/29
HIGHEST GUST SPEED/DIRECTION    40/020    DATE  03/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            7
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY         10

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                5     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                1     SNOW                       3
LIGHT SNOW                5     SLEET                      1
FOG                      13     FOG W/VIS <= 1/4 MILE      2
HAZE                     12

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

&&

RECORDS...

MONTHLY...NONE

DAILY
MARCH 6...SET RECORD FOR LOW MINIMUM WITH 0...
                           ...OLD RECORD 2 IN 1960.

$$




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