ANNUAL CLIMATOLOGICAL SUMMARY

NAME: Westlawn  CITY: Fairfax County   STATE: VA  
ELEV:   328 ft  LAT:  38° 51' 30" N  LONG:  77° 10' 50" 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 
------------------------------------------------------------------------------------
 12  1  47.1  29.7  38.2   4.7   830     0  65.6   7  14.4    4    0    4   21    0
 12  2  48.5  31.8  40.2   3.6   546     0  68.4   1  19.4   13    0    1   12    0
 12  3
 12  4
 12  5
 12  6
 12  7
 12  8
 12  9
 12 10
 12 11
 12 12
------------------------------------------------------------------------------------
        47.7  30.5  39.0   4.2  1376     0  68.4 FEB  14.4  JAN    0    5   33    0

                                PRECIPITATION (in)

               DEP.   MAX        DAYS OF RAIN 
               FROM   OBS.          OVER
 YR MO  TOTAL  NORM   DAY  DATE .01   .1   1
---------------------------------------------
 12  1  2.77  -0.79  1.13   12   10    6    1
 12  2  0.49  -2.43  0.12   16    7    1    0
 12  3
 12  4
 12  5
 12  6
 12  7
 12  8
 12  9
 12 10
 12 11
 12 12
---------------------------------------------
        3.26 -3.22  1.13  JAN   17    7    1

                                WIND SPEED (mph)
                          DOM
 YR MO   AVG.  HI   DATE  DIR
---------------------------------
 12  1   1.3  29.0   13   SSW
 12  2   1.7  33.0   11     N
 12  3
 12  4
 12  5
 12  6
 12  7
 12  8
 12  9
 12 10
 12 11
 12 12
---------------------------------
         1.5  33.0  FEB  SSW