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:   SIOUX FALLS
                                          MONTH:     MAY
                                          YEAR:      2005
                                          LATITUDE:   43 34 N                   
                                          LONGITUDE:  96 44 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  46  32  39 -13  26   0    T    T    0 17.5 30 300 290   34   9        37 290
 2  52  29  41 -12  24   0 0.00  0.0    0 13.8 26 340 725   85   4        31 330
 3  56  20  38 -15  27   0 0.00  0.0    0  4.0 17 300 855  100   0        22 300
 4  71  26  49  -4  16   0 0.00  0.0    0 11.2 22 190 671   78   3        26 200
 5  76  48  62   8   3   0 0.14  0.0    0 10.0 31 340 623   72   3 3      40 350
 6  76  43  60   6   5   0    T  0.0    0  9.4 20 150 463   54   4 13     23 130
 7  81  58  70  15   0   5 0.30  0.0    0 17.0 31 180 451   52   7 13     39 170
 8  78  57  68  13   0   3 0.02  0.0    0 15.4 26 160 577   66   6 35     35 170
 9  61  54  58   3   7   0    T  0.0    0 12.4 25 280  81    9   9 1      33 270
10  61  52  57   1   8   0 0.01    T    0 11.5 24  20 118   14  10 35     29  20
11  53  47  50  -6  15   0 0.53  0.0    0 21.8 30  70   0    0  10 1      39  70
12  48  43  46 -10  19   0 1.03  0.0    0 16.8 33  90   0    0  10 13     45  80
13  53  41  47 -10  18   0    T  0.0    0 11.2 25 280 185   21   8 1      33 290
14  51  36  44 -13  21   0    T  0.0    0 17.5 35 320 225   26   8        40 330
15  59  30  45 -13  20   0 0.00  0.0    0  6.0 15 140 770   87   2        20 130
16  73  47  60   2   5   0 0.35  0.0    0 18.1 29 180 495   56   7 13     36 170
17  78  58  68  10   0   3 0.19  0.0    0 17.3 32 160 306   34   9 13     43 170
18  70  49  60   1   5   0 0.88  0.0    0 11.9 25 170 519   58   5 13     30 280
19  79  44  62   3   3   0 0.00  0.0    0  8.7 22 340 807   90   1 1      29 310
20  81  52  67   8   0   2 0.00  0.0    0  9.7 21 130 832   93   1 18     25 120
21  81  55  68   8   0   3 0.21  0.0    0 16.2 35 140 507   57   5 138    45 140
22  76  52  64   4   1   0 0.00  0.0    0 13.5 28 300 897  100   0        37 300
23  80  46  63   3   2   0 0.00  0.0    0  5.2 17 100 850   95   3        21 100
24  80  59  70   9   0   5 0.01  0.0    0 12.3 20 130 556   62   5        25 150
25  66  49  58  -3   7   0 0.50  0.0    0 13.2 30 310 242   27   7 13     35 310
26  67  47  57  -4   8   0 0.05  0.0    0 11.0 35 300 680   75   3 13     41 300
27  61  47  54  -8  11   0 0.03  0.0    0 11.9 26 300 597   66   7        33 260
28  71  43  57  -5   8   0 0.00  0.0    0 10.1 22 300 778   86   3        29 310
29  60  42  51 -11  14   0 0.00  0.0    0  7.5 15 340 180   18   6        18 330
30  70  41  56  -7   9   0 0.00  0.0    0  2.5 12  90 503   55   4        14  90
31  70  57  64   1   1   0 0.97  0.0    0 10.1 24 140 208   23   9 13     29 130
================================================================================
SM 2085 1404       283  21  5.22    T    374.7        14991    168              
================================================================================
AV 67.3 45.3                              12.1 FASTST  PSBL  %   5    MAX(MPH)  
                                 MISC ---->  # 35 300               # 45  140   
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES
COLUMN 17 PEAK WIND IN M.P.H.
-PRECIPITATION AMOUNTS IN COLUMNS 7, 8, AND 9 WERE SUBMITTED
 AS THE OFFICAL PRECIPITATION FOR SIOUX FALLS, SD.
-SNOW DEPTH IN COLUMN 9 IS RECORDED AT 6 AM CST (12Z).

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2
                                          STATION:  SIOUX FALLS
                                          MONTH:    MAY
                                          YEAR:     2005
                                          LATITUDE:   43 34 N                   
                                          LONGITUDE:  96 44 W                   
[TEMPERATURE DATA]      [PRECIPITATION DATA]       SYMBOLS USED IN COLUMN 16    
AVERAGE MONTHLY: 56.3   TOTAL FOR MONTH:   5.22    1 = FOG                      
DPTR FM NORMAL:  -1.5   DPTR FM NORMAL:    1.83    2 = FOG REDUCING VISIBILITY  
HIGHEST:    81 ON 21,20 GRTST 24HR  1.50 ON 11-12      TO 1/4 MILE OR LESS      
LOWEST:     20 ON  3                               3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:    T          5 = HAIL                     
                        GRTST 24HR    T  ON 10-10  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:  15                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:  10                                  
MIN 32 OR BELOW:   5    0.50 INCH OR MORE:   5                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1                                  
[HDD (BASE 65) ]                                                                
TOTAL THIS MO.   283    CLEAR  (SCALE 0-3)  10                                  
DPTR FM NORMAL    41    PTCLDY (SCALE 4-7)  12                                  
SEASONAL TOTAL  6831    CLOUDY (SCALE 8-10)  9                                  
DPTR FM NORMAL  -923                                                            
[CDD (BASE 65) ]                                                                
TOTAL THIS MO.    21                                                            
DPTR FM NORMAL   -14    [PRESSURE DATA]                                         
SEASONAL TOTAL    26    HIGHEST SLP 30.25 ON  2                                 
DPTR FM NORMAL   -14    LOWEST  SLP 29.46 ON  8                                 
[REMARKS]
NEW RECORD DAILY PRECIPITATION 0.97 INCHES ON THE 31ST (PREVIOUS RECORD 0.85 IN 1996)