ANNUAL CLIMATOLOGICAL SUMMARY

NAME: Hawkeye Observatory  CITY: Durand   STATE: Illinois  
ELEV:   758 ft  LAT:  42° 24' 00" N  LONG:  89° 18' 00" W

               TEMPERATURE (°F), HEAT BASE 65.0, COOL BASE 65.0
                          DEP.  HEAT  COOL                                          
        MEAN  MEAN        FROM  DEG   DEG                        MAX  MAX  MIN  MIN 
 YR MO  MAX   MIN   MEAN  NORM  DAYS  DAYS  HI  DATE  LOW  DATE  >=90 <=32 <=32 <=0 
------------------------------------------------------------------------------------
 10  1
 10  2  33.2  20.9  27.6   0.0   501     0  38.4  19   5.8   19    0    5   14    0
 10  3  51.5  28.7  40.2   0.0   770     4  77.5  31  13.7    4    0    1   18    0
 10  4  66.8  41.0  54.1   0.0   356    30  84.1   1  26.3    9    0    0    5    0
 10  5  72.4  50.7  62.1   0.0   220   129  94.2  24  30.9    9    4    0    1    0
 10  6  80.3  59.8  70.2   0.0    40   196  89.5  11  49.3   30    0    0    0    0
 10  7  85.0  63.5  74.6   0.0    17   315  91.5  14  50.6    2    3    0    0    0
 10  8  84.2  62.3  72.9   0.0    37   283  93.2  12  47.2   26    4    0    0    0
 10  9  74.2  50.6  62.3   0.0   171    90  87.8  23  34.9   27    0    0    0    0
 10 10  67.1  37.1  52.0   0.0   442    39  89.5   9  24.5   22    0    0    9    0
 10 11  49.9  28.0  38.7   0.0   783     2  70.5   9  16.4   27    0    1   21    0
 10 12  26.7   9.1  19.3   0.0  1413     0  50.3  31 -11.3   15    0   25   29    7
------------------------------------------------------------------------------------
        64.4  42.1  53.4   0.0  4751  1088  94.2 MAY -11.3  DEC   11   32   97    7

                                PRECIPITATION (in)

               DEP.   MAX        DAYS OF RAIN 
               FROM   OBS.          OVER
 YR MO  TOTAL  NORM   DAY  DATE .01   .1   1
---------------------------------------------
 10  1
 10  2  0.13   0.00  0.10   20    2    0    0
 10  3  1.57   0.00  0.61   11    7    5    0
 10  4  3.67   0.00  0.93    6   12    8    0
 10  5  3.36   0.00  0.97   12    7    5    0
 10  6  6.34   0.00  1.20   18   14   11    2
 10  7  8.59   0.00  3.18   24   12    9    4
 10  8  2.71   0.00  0.78   20    9    7    0
 10  9  1.41   0.00  0.33   16   10    6    0
 10 10  3.17   0.00  1.34   26    5    3    2
 10 11  1.40   0.00  0.60   29    7    3    0
 10 12  0.10   0.00  0.04   31    1    0    0
---------------------------------------------
       32.45  0.00  3.18  JUL   86   57    8

                                WIND SPEED (mph)
                          DOM
 YR MO   AVG.  HI   DATE  DIR
---------------------------------
 10  1
 10  2   4.7  17.0   16    NW
 10  3   4.0  28.0   14   NNE
 10  4   4.8  31.0    2   ENE
 10  5   4.0  31.0    5   ENE
 10  6   2.3  32.0   18     W
 10  7   1.8  26.0   22     W
 10  8   1.5  24.0    9     W
 10  9   2.9  37.0   21     W
 10 10   3.6  41.0   27     W
 10 11   5.2  32.0   14     W
 10 12   4.8  36.0   12     W
---------------------------------
         3.5  41.0  OCT    W