Explanation of the Preliminary Monthly Climate Data (F6) Product

These data are preliminary and have not undergone final quality control by the National Climatic Data Center (NCDC). Therefore, these data are subject to revision. Final and certified climate data can be accessed at the NCDC - http://www.ncdc.noaa.gov.

WFO Monthly/Daily Climate Data

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

                                          STATION:   GRAND FORKS  WFO
                                          MONTH:     MAY
                                          YEAR:      2005
                                          LATITUDE:   47 55 N                   
                                          LONGITUDE:  97  6 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  33  27  30 -19  35   0 0.02  0.3    T    M  M   M   M    M   M         M  M 
 2  44  21  33 -17  32   0 0.00  0.0    0    M  M   M   M    M   M         M  M 
 3  59  24  42  -8  23   0 0.00  0.0    0    M  M   M   M    M   M         M  M 
 4  69  30  50  -1  15   0 0.00  0.0    0    M  M   M   M    M   M         M  M 
 5  75  43  59   7   6   0 0.00  0.0    0    M  M   M   M    M   M         M  M 
 6  72  36  54   2  11   0 0.00  0.0    0    M  M   M   M    M   M         M  M 
 7  68  55  62  10   3   0 0.29    T    0    M  M   M   M    M   M 3       M  M 
 8  81  53  67  14   0   2 0.81  0.0    0    M  M   M   M    M   M         M  M 
 9  59  49  54   1  11   0 0.57  0.0    0    M  M   M   M    M   M         M  M 
10  54  34  44  -9  21   0 0.03  0.0    0    M  M   M   M    M   M         M  M 
11  50  30  40 -14  25   0 0.00  0.0    0    M  M   M   M    M   M         M  M 
12  51  35  43 -11  22   0 0.08  0.0    0    M  M   M   M    M   M 1       M  M 
13  48  38  43 -12  22   0 0.15  0.0    0    M  M   M   M    M   M 1       M  M 
14  44  35  40 -15  25   0 0.06  0.0    0    M  M   M   M    M   M 1       M  M 
15  51  30  41 -15  24   0 0.00  0.0    0    M  M   M   M    M   M         M  M 
16  69  38  54  -2  11   0 0.00  0.0    0    M  M   M   M    M   M         M  M 
17  75  49  62   6   3   0 0.55  0.0    0    M  M   M   M    M   M         M  M 
18  71  57  64   7   1   0 0.08  0.0    0    M  M   M   M    M   M         M  M 
19  70  54  62   5   3   0 0.00  0.0    0    M  M   M   M    M   M         M  M 
20  84  55  70  12   0   5 0.02  0.0    0    M  M   M   M    M   M         M  M 
21  77  56  67   9   0   2 0.55  0.0    0    M  M   M   M    M   M         M  M 
22  71  53  62   4   3   0    T  0.0    0    M  M   M   M    M   M         M  M 
23  73  47  60   1   5   0    T  0.0    0    M  M   M   M    M   M         M  M 
24  62  52  57  -2   8   0 0.42  0.0    0    M  M   M   M    M   M 1       M  M 
25  60  50  55  -4  10   0    T  0.0    0    M  M   M  14    M   M         M  M 
26  57  46  52  -8  13   0    T  0.0    0    M  M   M  12    M   M         M  M 
27  52  46  49 -11  16   0 0.22  0.0    0    M  M   M   M    M   M         M  M 
28  52  43  48 -12  17   0 0.25  0.0    0    M  M   M  25    M   M         M  M 
29  68  47  58  -2   7   0 0.13  0.0    0    M  M   M   M    M   M 3       M  M 
30  72  49  61   0   4   0 0.00  0.0    0    M  M   M   M    M   M         M  M 
31  76  50  63   2   2   0 0.01    M    M    M  M   M   M    M   M         M  M 
================================================================================
SM 1947 1332       378   9  4.24     0.3     M           51      M              
================================================================================
AV 62.8 43.0                                 M FASTST  PSBL  %   5    MAX(MPH)  
                                 MISC ---->     M   M                  M    M   
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:  GRAND FORKS  WFO
                                          MONTH:    MAY
                                          YEAR:     2005
                                          LATITUDE:   47 55 N                   
                                          LONGITUDE:  97  6 W                   

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

AVERAGE MONTHLY: 52.9   TOTAL FOR MONTH:   4.24    1 = FOG                      
DPTR FM NORMAL:  -2.9   DPTR FM NORMAL:    2.20    2 = FOG REDUCING VISIBILITY  
HIGHEST:    84 ON 20    GRTST 24HR  0.81 ON  8- 8      TO 1/4 MILE OR LESS      
LOWEST:     21 ON  2                               3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:   0.3 INCH    5 = HAIL                     
                        GRTST 24HR   0.3 ON  1- 1  6 = GLAZE OR RIME            
                        GRTST DEPTH:   0           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:   0    0.01 INCH OR MORE:  17                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:  10                                  
MIN 32 OR BELOW:   6    0.50 INCH OR MORE:   4                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.   378    CLEAR  (SCALE 0-3)   0                                  
DPTR FM NORMAL    80    PTCLDY (SCALE 4-7)   0                                  
SEASONAL TOTAL  9023    CLOUDY (SCALE 8-10)  0                                  
DPTR FM NORMAL  -204                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.     9                                                            
DPTR FM NORMAL   -35    [PRESSURE DATA]                                         
SEASONAL TOTAL    14    HIGHEST SLP M ON M                                      
DPTR FM NORMAL   -30    LOWEST  SLP M ON M                                      

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