NWS Raleigh, NC
Climate Data

Data updated Sun Nov 8 13:45:02 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
================================================================================
SM  448  277        91   0  1.46     0.0  44.2          M       18              
================================================================================
AV 64.0 39.6                               6.3 FASTST   M    M   3    MAX(MPH)  
                                 MISC ---->  # 24  40               # 31   50   
================================================================================
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: 51.8   TOTAL FOR MONTH:   1.46    1 = FOG OR MIST              
DPTR FM NORMAL:  -0.6   DPTR FM NORMAL:    0.79    2 = FOG REDUCING VISIBILITY  
HIGHEST:    71 ON  3    GRTST 24HR  1.93 ON 31- 1      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:   1                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   1                                  
MIN 32 OR BELOW:   0    0.50 INCH OR MORE:   1                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.    91    CLEAR  (SCALE 0-3)   5                                  
DPTR FM NORMAL     2    PTCLDY (SCALE 4-7)   1                                  
TOTAL FM JUL 1   310    CLOUDY (SCALE 8-10)  1                                  
DPTR FM NORMAL   -44                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.     0                                                            
DPTR FM NORMAL     0    [PRESSURE DATA]                                         
TOTAL FM JAN 1  1521    HIGHEST SLP M ON M                                      
DPTR FM NORMAL   193    LOWEST  SLP 29.87 ON  1                                 

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