Annual Climatological Summary for 2017

Name: NapervilleWather.com   City: Naperville   State: IL
Elevation: 781 ft  Lat: N 41° 47' 23"   Lon: W 088° 07' 27"

                  Temperature (°F), Heat Base: 65.0  Cool Base: 65.0
                          Dep.  Heat  Cool                       Max  Max  Min  Min
        Mean  Mean        From  Deg   Deg                        >=   <=   <=   <=
 YR MO  Max   Min   Mean  Norm  Days  Days  Hi  Date  Low  Date 80.0 25.2 32.0   0.0
------------------------------------------------------------------------------------
 17  1
 17  2
 17  3
 17  4
 17  5
 17  6
 17  7
 17  8
 17  9  85.9  60.3  71.6   8.9    21    70  97.9  23  45.8   30    5    0    0    0
 17 10  63.0  43.1  54.7   3.9   268    26  83.8   2   0.0   13    2    0    2    2
 17 11  46.1  29.9  38.5   0.7  1351     0  62.0  24  16.3   10    0    0   34    0
 17 12  33.7  19.0  26.2   1.0  2363     0  64.1   4  -4.6   27    0   16   50   10
------------------------------------------------------------------------------------
        57.2  38.1  47.7   3.6  4005    97  97.9 Sep  -4.6  Dec    7   16   86   12

                                Precipitation (in)

              Dep.   Max        Days of Rain
              From   Obs.           >=
 YR MO Total  Norm   Day Date 0.01 0.10 1.00
---------------------------------------------
 17  1
 17  2
 17  3
 17  4
 17  5
 17  6
 17  7
 17  8
 17  9  0.00 -3.60  0.00   0     0    0    0
 17 10  8.91  6.21  5.82  14     9    7    1
 17 11  3.41  0.31  0.62  18    16   10    0
 17 12  0.44 -1.66  0.13   4     8    2    0
---------------------------------------------
       12.76  1.26  5.82  Oct   33   19    1

                                Wind Speed (mph)
                          Dom
 YR MO   Avg.  Hi   Date  Dir
------------------------------
 17  1
 17  2
 17  3
 17  4
 17  5
 17  6
 17  7
 17  8
 17  9   0.1   5.4   27    NW
 17 10   0.6  18.0   14   WSW
 17 11   1.0  24.0   15     W
 17 12   1.3  24.0    5   WSW
------------------------------
         0.8  24.0  Nov     W