Climatological Report (Monthly)
Issued by NWS

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CXUS53 KLOT 011742 CCA
CLMORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
1141 AM CST WED MAR 1 2017

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

...THE CHICAGO-OHARE CLIMATE SUMMARY FOR THE MONTH OF FEBRUARY 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              75   02/27/1976
 LOW              -21   02/09/1899
HIGHEST            70   02/20                         62  02/28
                        02/18                             02/19
LOWEST             10   02/04                          2  02/13
AVG. MAXIMUM     47.7              35.3    12.4     37.2
AVG. MINIMUM     28.4              20.1     8.3     23.5
MEAN             38.1              27.7    10.4     30.4
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      4              10.3    -6.3        9
DAYS MIN <= 32     19              24.0    -5.0       26
DAYS MIN <= 0       0               1.7    -1.7        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.98   1881
 MINIMUM         0.06   1877
TOTALS           1.52              1.79   -0.27     1.23
DAILY AVG.       0.05              0.06   -0.01     0.04
DAYS >= .01         5               8.8    -3.8        9
DAYS >= .10         4               4.4    -0.4        3
DAYS >= .50         1               0.9     0.1        1
DAYS >= 1.00        0               0.3    -0.3        0
GREATEST
 24 HR. TOTAL    0.65   02/28 TO 02/28


SNOWFALL (INCHES)
RECORDS
 TOTAL           29.0   2011
TOTALS              T               9.1    -9.1      5.5
SINCE 7/1        18.3              29.5   -11.2     27.5
SNOWDEPTH AVG.      0                 3      -3        0
DAYS >= 1.0         0               2.7    -2.7
GREATEST
 SNOW DEPTH         0   MM
 24 HR TOTAL        T   02/25 TO 02/25
                        02/01 TO 02/01

DEGREE_DAYS
HEATING TOTAL     748              1044    -296      996
 SINCE 7/1       3925              4734    -809     4008
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
...................................................

WIND (MPH)
AVERAGE WIND SPEED              10.8
RESULTANT WIND SPEED/DIRECTION   5/257
HIGHEST WIND SPEED/DIRECTION    36/300    DATE  02/12
HIGHEST GUST SPEED/DIRECTION    46/310    DATE  02/12


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       3
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                2     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      2
HAZE                      6

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

&&
DAILY RECORDS ESTABLISHED DURING FEBRUARY 2017
* RECORD DAILY MAXIMUM TEMPERATURE OF 67 DEGREES ON THE 17TH
* RECORD DAILY MAXIMUM TEMPERATURE OF 70 DEGREES ON THE 18TH
* RECORD DAILY MAXIMUM TEMPERATURE OF 69 DEGREES ON THE 19TH
* RECORD DAILY MAXIMUM TEMPERATURE OF 70 DEGREES ON THE 20TH
* RECORD DAILY MAXIMUM LOW TEMPERATURE OF 49 DEGREES ON THE 21ST
* TIED RECORD DAILY MAXIMUM TEMPERATURE OF 68 DEGREES ON THE 22ND

MONTHLY RECORDS ESTABLISHED DURING FEBRUARY 2017
* 3RD WARMEST FEBRUARY ON RECORD SINCE 1872 WITH 38.1 DEGREES

MONTHLY RECORDS TIED DURING FEBRUARY 2017
* TIED LEAST SNOWFALL OF T SET IN 1998 AND 1987

$$


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