PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)
                                          STATION:  PITTSBURGH
                                          MONTH:    DECEMBER
                                          YEAR:     2000
                                          LATITUDE:   40 30 N                   
                                          LONGITUDE:  80 13 W                   
  TEMPERATURE IN F:       :PCPN:    SNOW:  WIND      :SUNSHINE: SKY     :PK WND 
================================================================================
1   2   3   4   5  6A  6B    7    8   9   10  11  12  13   14  15   16   17  18
                                          AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================
 1  37  29  33  -4  32   0    T    T    0  5.5 12 360   M    M  10 1     21  340
 2  31  20  26 -10  39   0    T    T    0  8.5 17 360   M    M   5 81    15  350
 3  34  15  25 -11  40   0 0.00  0.0    0  4.9 12  30   M  100   0       15  350
 4  39  10  25 -10  40   0 0.00  0.0    0  3.6 16 230   M   73   5       23  220
 5  34  18  26  -9  39   0    T  0.3    0 15.3 28 270   M    M   8 1     43  270
 6  24  13  19 -16  46   0    T    T    1  7.5 14 200   M    M   8       18  230
 7  27  21  24 -10  41   0 0.03  1.8    1  7.4 15 270   M    M  10 1     24  260
 8  34  27  31  -3  34   0 0.02  0.6    2 10.0 22 280   M    0  10 18    25  290
 9  29  15  22 -12  43   0    T    T    1  4.8 20 290   M   30   8       24  300
10  37  19  28  -5  37   0    T  0.0    1  4.8  9 160   M    0   8 12    10  160
11  49  35  42   9  23   0 0.50  0.0    0  5.9 17 190   M    0  10 128   23  190
12  51  16  34   2  31   0 0.06    T    T 17.7 37 260   M   30   7 1     52  230
13  31  11  21 -11  44   0 0.34  0.0    0  6.2 21 120   M    M   8 1     23  110
14  37  28  33   1  32   0 0.21  0.0    0  8.4 23 280   M    M  10 18    28  270
15  34  27  31  -1  34   0 0.00  0.0    0  5.4  9 100   M    M  10 1      M   M 
16  47  33  40   9  25   0 1.15  0.0    0  6.7 14 110   M    M  10 138    M   M 
17  49  14  32   1  33   0 0.26  0.3    0 12.1 23 250   M    0  10 1     36  240
18  21  12  17 -14  48   0    T  0.3    0  7.7 14 270   M   31   8 1     25  260
19  28  11  20 -10  45   0 0.07  1.8    2  7.0 16 270   M    2   9 1     17  230
20  20  11  16 -14  49   0    T  0.4    2  6.9 13 250   M   18   9 1     18  260
21  30  14  22  -8  43   0    T    T    2  7.5 16 230   M    6   9 8     25  230
22  26   3  15 -15  50   0    T  0.1    2 11.4 21 270   M    M   8 8     31  280
23  19   3  11 -18  54   0    T    T    2  4.5  9 250   M    M   9 1     15  260
24  26  12  19 -10  46   0    T    T    1  9.7 20 270   M    M   9       31  290
25  17   6  12 -17  53   0    T    T    1  9.8 14 290   M    M   7       20  280
26  20   1  11 -18  54   0    T  0.2    1  5.1 12 280   M    M   6       16  270
27  21  15  18 -11  47   0    T  0.7    1  7.4 14 270   M    0  10 M     17  280
28  20   8  14 -14  51   0    T  0.8    2  9.7 20 310   M   66   6 M     24  340
29  24  10  17 -11  48   0    T    T    2  4.9 12  70   M    3   9 M     14   80
30  21  16  19  -9  46   0    T  0.5    2  6.8 13 220   M    8  10 M     18  250
31  24  18  21  -7  44   0    T  0.5    3 12.7 21 290   M    1  10 M     25  280
================================================================================
SM  941  491      1291   0  2.64     8.3 245.8          M      255              
================================================================================
AV 30.4 15.8                               7.9 FASTST  PSBL  %   8    MAX(MPH)  
                                 MISC ---->    37 260                 52  230   
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES
COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2
                                          STATION:  PITTSBURGH
                                          MONTH:    DECEMBER
                                          YEAR:     2000
                                          LATITUDE:   40 30 N                   
                                          LONGITUDE:  80 13 W                   
[TEMPERATURE DATA]      [PRECIPITATION DATA]       SYMBOLS USED IN COLUMN 16    
AVERAGE MONTHLY: 23.1   TOTAL FOR MONTH:   2.64    1 = FOG                      
DPTR FM NORMAL:     M   DPTR FM NORMAL:   -0.28    2 = FOG REDUCING VISIBILITY  
HIGHEST:    51 ON 12    GRTST 24HR  1.41 ON 16-17      TO 1/4 MILE OR LESS      
LOWEST:      1 ON 26                               3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:   8.3 INCHES  5 = HAIL                     
                        GRTST 24HR      ON         6 = GLAZE OR RIME            
                        GRTST DEPTH:   3 ON 31     7 = BLOWING DUST OR SAND:    
                                                       VSBY 1/2 MILE OR LESS    
                                                   8 = SMOKE OR HAZE            
[NO. OF DAYS WITH]      [WEATHER - DAYS WITH]      9 = BLOWING SNOW             
                                                   X = TORNADO                  
MAX 32 OR BELOW:  19    0.01 INCH OR MORE:   9                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   5                                  
MIN 32 OR BELOW:  29    0.50 INCH OR MORE:   2                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1                                  
[HDD (BASE 65) ]                                                                
TOTAL THIS MO.  1291    CLEAR  (SCALE 0-3)   1                                  
DPTR FM NORMAL   252    PTCLDY (SCALE 4-7)   6                                  
SEASONAL TOTAL  2549    CLOUDY (SCALE 8-10) 24                                  
DPTR FM NORMAL   315                                                            
[CDD (BASE 65) ]                                                                
TOTAL THIS MO.     0                                                            
DPTR FM NORMAL     0    [PRESSURE DATA]                                         
SEASONAL TOTAL   622    HIGHEST SLP M ON M                                      
DPTR FM NORMAL   -32    LOWEST  SLP M ON M                                      
[REMARKS]