NWS Raleigh, NC
Climate Data

Data updated Wed Nov 25 13:45:03 GMT 2009


Help - Understanding the Preliminary Local Climatological Data (WS Form F-6)


PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   PIEDMONT TRIAD INTL AIRPORT NC
                                          MONTH:     NOVEMBER
                                          YEAR:      2009
                                          LATITUDE:   36  4 N                   
                                          LONGITUDE:  79 57 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
                                     12Z  AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  63  48  56   3   9   0 1.46  0.0    0 12.1 24  40   M    M  10 18     31  50
 2  63  45  54   1  11   0    T  0.0    0  5.7 16  50   M    M   5        21  50
 3  71  40  56   3   9   0 0.00  0.0    0  5.2 16 310   M    M   0        21 310
 4  62  36  49  -3  16   0 0.00  0.0    0  3.3 13  80   M    M   2        15 260
 5  62  38  50  -2  15   0 0.00  0.0    0  6.8 23 300   M    M   1        30 300
 6  62  36  49  -3  16   0 0.00  0.0    0  3.9 10  30   M    M   0         M  M 
 7  65  34  50  -2  15   0 0.00  0.0    0  7.2 14 200   M    M   0        20 210
 8  76  42  59   8   6   0 0.00  0.0    0  2.9 10 230   M    M   0         M  M 
 9  71  43  57   6   8   0 0.00  0.0    0  0.9  8 210   M    M   0         9 210
10  60  54  57   6   8   0 0.67  0.0    0  6.2 21  50   M    M   8 1      31  40
11  54  45  50  -1  15   0 2.49  0.0    0 17.9 29  50   M    M  10 1      40  40
12  49  43  46  -4  19   0 1.76  0.0    0 15.5 26  20   M    M  10 1      38  20
13  62  48  55   5  10   0 0.01  0.0    0 12.2 21  20   M    M   9 18     31  10
14  73  52  63  13   2   0 0.00  0.0    0  4.0 13  30   M    M   3        17  30
15  77  45  61  12   4   0 0.00  0.0    0  0.6  6 220   M    M   0 1       9 210
16  73  44  59  10   6   0 0.00  0.0    0  1.8  9 140   M    M   0        18 320
17  61  45  53   4  12   0 0.00  0.0    0  7.1 16  60   M    M   5 128    21  80
18  54  49  52   3  13   0 0.04  0.0    0 11.2 20  50   M    M  10 1      22  50
19  59  53  56   8   9   0 0.22  0.0    0  3.8  9  30   M    M  10 1      13  30
20  62  43  53   5  12   0 0.00  0.0    0  2.7 12  20   M    M   1 12     15  40
21  57  40  49   1  16   0 0.00  0.0    0  3.6 12  70   M    M   0        15  60
22  54  36  45  -2  20   0 0.10    M    0  5.6 18  60   M    M   3 1      22  70
23  50  46  48   1  17   0 0.89  0.0    0  7.6 15  30   M    M  10 1      21  30
24  61  48  55   8  10   0    T  0.0    0  4.4 13  50   M    M   9 1      16  50
================================================================================
SM 1501 1053       278   0  7.64     0.0 152.2          M      106              
================================================================================
AV 62.5 43.9                               6.3 FASTST   M    M   4    MAX(MPH)  
                                 MISC ---->  # 29  50               # 40   40   
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:  PIEDMONT TRIAD INTL AIRPORT NC
                                          MONTH:    NOVEMBER
                                          YEAR:     2009
                                          LATITUDE:   36  4 N                   
                                          LONGITUDE:  79 57 W                   

[TEMPERATURE DATA]      [PRECIPITATION DATA]       SYMBOLS USED IN COLUMN 16    

AVERAGE MONTHLY: 53.2   TOTAL FOR MONTH:   7.64    1 = FOG OR MIST              
DPTR FM NORMAL:   3.1   DPTR FM NORMAL:    5.27    2 = FOG REDUCING VISIBILITY  
HIGHEST:    77 ON 15    GRTST 24HR  2.73 ON 11-12      TO 1/4 MILE OR LESS      
LOWEST:     34 ON  7                               3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:   0.0 INCH    5 = HAIL                     
                        GRTST 24HR     0.0         6 = FREEZING RAIN OR DRIZZLE 
                        GRTST DEPTH:   0           7 = DUSTSTORM OR SANDSTORM:  
                                                       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:   0    0.01 INCH OR MORE:   9                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   7                                  
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   5                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   3                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.   278    CLEAR  (SCALE 0-3)  12                                  
DPTR FM NORMAL   -85    PTCLDY (SCALE 4-7)   4                                  
TOTAL FM JUL 1   497    CLOUDY (SCALE 8-10)  8                                  
DPTR FM NORMAL  -131                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.     0                                                            
DPTR FM NORMAL    -3    [PRESSURE DATA]                                         
TOTAL FM JAN 1  1521    HIGHEST SLP M ON M                                      
DPTR FM NORMAL   190    LOWEST  SLP 29.77 ON 13                                 

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