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

                                          STATION:   GRAND FORKS INTL AP ND
                                          MONTH:     DECEMBER
                                          YEAR:      2013
                                          LATITUDE:   47 57 N                   
                                          LONGITUDE:  97 11 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  22  19  21   4  44   0 0.10  1.1    1  5.8 14 100   M    M  10 12     17 110
 2  27  22  25   8  40   0 0.07  1.7    2 13.7 22  20   M    M  10 1      26  20
 3  24  17  21   5  44   0 0.04  0.3    4 18.5 26 350   M    M  10 18     31 350
 4  20   6  13  -3  52   0 0.15  7.3    5 19.9 30 340   M    M  10 129    37 330
 5   6  -8  -1 -16  66   0    T  0.1    8 17.7 26 300   M    M   8 189    33 300
 6  -5 -22 -13 -28  78   0 0.00  0.0    8  8.9 16 290   M    M   0        18 290
 7  -8 -24 -16 -30  81   0 0.00  0.0    8  8.5 14 270   M    M   2        16 270
 8   0 -23 -11 -25  76   0 0.05  0.3    6  8.2 14 180   M    M   8 18     17 180
 9  -2 -16  -9 -23  74   0 0.02  0.3    6  9.5 20 270   M    M   6 18     23 270
10   3 -18  -7 -20  72   0 0.01  0.1    6  9.6 17 330   M    M   3 18     20 320
11  -2 -21 -11 -24  76   0 0.01  0.2    6  8.9 17 180   M    M   4 8      20 180
12   9 -12  -1 -13  66   0    T  0.2    7  6.9 18  20   M    M   8 8      21  30
13  -3  -7  -5 -17  70   0 0.02  1.1    8 12.4 20  20   M    M  10 8      22  20
14  -2 -21 -11 -23  76   0 0.05  1.4    9  7.3 14 360   M    M   7 8      16 350
15   0 -19  -9 -20  74   0 0.02  0.2   10  7.7 20 170   M    M   9 18     24 170
16  32   0  16   5  49   0 0.10  3.1   10 17.7 30 290   M    M   6 128    37 290
17  26  -4  11   0  54   0    T    T    9 12.9 43 310   M    M   5 189    53 310
18  22  -1  11   1  54   0    T    T    9 15.7 36 350   M    M   4 189    41 350
19   0 -12  -6 -16  71   0 0.03  0.3    8 12.8 20 330   M    M   9 8      30 350
20   4  -8  -2 -12  67   0 0.00  0.0    8  8.1 12 180   M    M   7        13 190
21   1 -11  -5 -15  70   0 0.00  0.0    8 14.5 21 350   M    M   7        25 350
22  -5 -14  -9 -18  74   0 0.00  0.0    8 17.1 22 350   M    M   7        26 340
23  -6 -23 -14 -23  79   0 0.00  0.0    8  7.0 15 340   M    M   1        18 340
24  20 -15   3  -6  62   0 0.09  3.2    8 15.1 25 180   M    M   8 1289   32 180
25  21  13  17   8  48   0 0.02  0.9   10  7.6 23 310   M    M   9 1      25 320
26  23   4  14   6  51   0 0.01  0.2   10  6.9 13 180   M    M   9 18     15 190
27  38  23  31  23  34   0 0.00  0.0   10 11.3 23 310   M    M   7 1      29 320
28  28 -14   7  -1  58   0 0.02  0.6    9 23.5 41 360   M    M   9 169    53 350
29  -5 -26 -15 -23  80   0 0.00  0.0    9  7.6 22 340   M    M   3        26 350
30  -7 -27 -17 -25  82   0 0.01  0.2    9  7.0 15 340   M    M   6 8      17 350
31 -15 -28 -21 -29  86   0 0.00  0.0    9  5.8 12 350   M    M   5        14 350
================================================================================
SM  266 -270      2008   0  0.82    22.8 354.1          M      207              
================================================================================
AV  8.6 -8.7                              11.4 FASTST   M    M   7    MAX(MPH)  
                                 MISC ---->  # 43 310                 53    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 INTL AP ND
                                          MONTH:    DECEMBER
                                          YEAR:     2013
                                          LATITUDE:   47 57 N                   
                                          LONGITUDE:  97 11 W                   

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

AVERAGE MONTHLY: -0.1   TOTAL FOR MONTH:   0.82    1 = FOG OR MIST              
DPTR FM NORMAL: -11.6   DPTR FM NORMAL:    0.21    2 = FOG REDUCING VISIBILITY  
HIGHEST:    38 ON 27    GRTST 24HR  0.17 ON  3- 4      TO 1/4 MILE OR LESS      
LOWEST:    -28 ON 31                               3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:  22.8 INCHES  5 = HAIL                     
                        GRTST 24HR   7.3 ON   M    6 = FREEZING RAIN OR DRIZZLE 
                        GRTST DEPTH:  10 ON 27,26  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:  30    0.01 INCH OR MORE:  18                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   3                                  
MIN 32 OR BELOW:  31    0.50 INCH OR MORE:   0                                  
MIN  0 OR BELOW:  24    1.00 INCH OR MORE:   0                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.  2008    CLEAR  (SCALE 0-3)   5                                  
DPTR FM NORMAL   348    PTCLDY (SCALE 4-7)  16                                  
TOTAL FM JUL 1  4119    CLOUDY (SCALE 8-10) 10                                  
DPTR FM NORMAL   260                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.     0                                                            
DPTR FM NORMAL     0    [PRESSURE DATA]                                         
TOTAL FM JAN 1   487    HIGHEST SLP M ON M                                      
DPTR FM NORMAL   108    LOWEST  SLP 29.57 ON 18                                 

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