Climatological Report (Monthly)
Issued by NWS

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771
CXUS53 KLOT 011342
CLMORD

CLIMATE REPORT
NATIONAL WEATHER SERVICE CHICAGO IL
104 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 TRACE SET IN 1998 AND 1987



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