ANNUAL CLIMATOLOGICAL SUMMARY

NAME: SK  CITY: Chesterfield   STATE: MO  63017  
ELEV:   500 ft  LAT:  38° 24' 34" N  LONG:  90° 17' 55" 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  34.3  19.9  26.6  -0.4  1175     0  55.5  14  -2.4   10    0   13   22    1
 10  2  37.6  23.1  30.0  -3.0   978     0  54.9  20  10.4    9    0    6   25    0
 10  3  52.8  31.0  41.6  -1.4   203     0  67.3   7  22.6    4    0    0    6    0
 10  4
 10  5
 10  6
 10  7
 10  8
 10  9
 10 10
 10 11
 10 12
------------------------------------------------------------------------------------
        38.1  22.7  30.0  -1.6  2356     0  67.3 MAR  -2.4  JAN    0   19   53    1

                                PRECIPITATION (in)

               DEP.   MAX        DAYS OF RAIN 
               FROM   OBS.          OVER
 YR MO  TOTAL  NORM   DAY  DATE .01   .1   1
---------------------------------------------
 10  1  1.31  -0.53  0.59   23    5    4    0
 10  2  2.05  -0.11  0.89   21   10    4    0
 10  3  0.15  -3.07  0.15    9    1    1    0
 10  4
 10  5
 10  6
 10  7
 10  8
 10  9
 10 10
 10 11
 10 12
---------------------------------------------
        3.51 -3.71  0.89  FEB   16    9    0

                                WIND SPEED (mph)
                          DOM
 YR MO   AVG.  HI   DATE  DIR
---------------------------------
 10  1   2.6  25.0    7    NW
 10  2   2.6  23.0    9    NW
 10  3   2.2  18.0    3    NW
 10  4
 10  5
 10  6
 10  7
 10  8
 10  9
 10 10
 10 11
 10 12
---------------------------------
         2.5  25.0  JAN   NW