NWS Raleigh, NC
Climate Data

Data updated Wed Nov 25 13:45:04 GMT 2009


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


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

                                          STATION:   RALEIGH-DURHAM INTL AIRPORT NC
                                          MONTH:     NOVEMBER
                                          YEAR:      2009
                                          LATITUDE:   35 52 N                   
                                          LONGITUDE:  78 47 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  70  49  60   5   5   0 0.92    M    0 10.5 22  40   M    M  10 1      31  30
 2  60  42  51  -4  14   0 0.03  0.0    0  4.7 12  40   M    M   6 1      17  30
 3  71  38  55   1  10   0 0.00  0.0    0  2.0  8  20   M    M   1 1      14 290
 4  64  38  51  -3  14   0 0.00  0.0    0  2.9 15  80   M    M   2        21  80
 5  65  38  52  -2  13   0 0.00  0.0    0  2.9 15 270   M    M   1 1      23 280
 6  60  38  49  -5  16   0 0.00  0.0    0  2.6 14  20   M    M   0        18  40
 7  66  33  50  -3  15   0 0.00  0.0    0  5.6 16 240   M    M   1        21 230
 8  76  42  59   6   6   0 0.00  0.0    0  2.8  8 270   M    M   0        12  90
 9  76  42  59   6   6   0 0.00  0.0    0  0.9  9 240   M    M   7 1      13 250
10  63  56  60   7   5   0 0.88  0.0    0  4.6 16  30   M    M  10 1      23  30
11  57  48  53   1  12   0 2.97  0.0    0 15.1 28  50   M    M  10 1      37  50
12  48  46  47  -5  18   0 0.58  0.0    0 14.0 22  20   M    M  10 1      37  30
13  55  48  52   0  13   0 0.03  0.0    0 11.3 20  20   M    M  10 18     32  10
14  67  48  58   7   7   0 0.01  0.0    0  4.5 12  20   M    M   7 1      20  20
15  73  44  59   8   6   0 0.00  0.0    0  0.1  5 220   M    M   5 12     10 110
16  74  42  58   7   7   0 0.00  0.0    0  0.9  8  80   M    M   0 1      12 100
17  63  47  55   4  10   0 0.00  0.0    0  5.8 14  50   M    M   8 1      17  50
18  62  52  57   7   8   0 0.45  0.0    0  8.2 16  40   M    M  10 1      21  50
19  73  58  66  16   0   1 0.01  0.0    0  5.1 10 250   M    M   9 12     15 250
20  63  42  53   3  12   0 0.00  0.0    0  3.6 15  40   M    M   4 1      23  40
21  57  39  48  -2  17   0 0.00  0.0    0  3.5 14  40   M    M   6 1      20  50
22  57  37  47  -2  18   0 0.19    M    0  5.8 17  70   M    M   7 1      23  70
23  52  49  51   2  14   0 0.58  0.0    0  6.3 17  50   M    M  10 1      23  60
24  58  48  53   4  12   0    T  0.0    0  3.3 10  50   M    M  10 1      15  20
================================================================================
SM 1530 1064       258   1  6.65     0.0 127.0          M      144              
================================================================================
AV 63.8 44.3                               5.3 FASTST   M    M   6    MAX(MPH)  
                                 MISC ---->  # 28  50               # 37   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:  RALEIGH-DURHAM INTL AIRPORT NC
                                          MONTH:    NOVEMBER
                                          YEAR:     2009
                                          LATITUDE:   35 52 N                   
                                          LONGITUDE:  78 47 W                   

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

AVERAGE MONTHLY: 54.0   TOTAL FOR MONTH:   6.65    1 = FOG OR MIST              
DPTR FM NORMAL:   2.2   DPTR FM NORMAL:    4.26    2 = FOG REDUCING VISIBILITY  
HIGHEST:    76 ON  9, 8 GRTST 24HR  3.40 ON 10-11      TO 1/4 MILE OR LESS      
LOWEST:     33 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:  11                                  
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:   1                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.   258    CLEAR  (SCALE 0-3)   7                                  
DPTR FM NORMAL   -62    PTCLDY (SCALE 4-7)   8                                  
TOTAL FM JUL 1   442    CLOUDY (SCALE 8-10)  9                                  
DPTR FM NORMAL   -93                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.     1                                                            
DPTR FM NORMAL    -5    [PRESSURE DATA]                                         
TOTAL FM JAN 1  1882    HIGHEST SLP M ON M                                      
DPTR FM NORMAL   363    LOWEST  SLP 29.77 ON 13                                 

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