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:   ROCHESTER
                                          MONTH:     MARCH
                                          YEAR:      2005
                                          LATITUDE:   43 55 N                   
                                          LONGITUDE:  92 30 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  19   7  13 -11  52   0    T    T    1 12.1 20 340   M    M   3 18     22 330
 2  21   7  14 -10  51   0 0.00  0.0    1  5.4 12  60   M    M   1 18     13  50
 3  36   4  20  -5  45   0 0.00  0.0    1  6.6 12 200   M    M   0        14 200
 4  41  28  35  10  30   0    T  0.0    1 14.7 23 320   M    M   5 18     25 310
 5  38  29  34   8  31   0 0.00  0.0    T 13.0 26 230   M    M   7 18     31 230
 6  62  35  49  23  16   0 0.00  0.0    0 13.4 26 230   M    M   1        30 230
 7  44  22  33   7  32   0    T    T    0 21.2 35 340   M    M   8 18     44 350
 8  25  14  20  -7  45   0 0.00  0.0    0 10.5 18  10   M    M   2        21  10
 9  30  12  21  -6  44   0 0.00  0.0    0  9.8 18 320   M    M   1        22 340
10  37  25  31   3  34   0 0.02  0.8    1 20.4 32 310   M    M   9 16     40 310
11  34  14  24  -4  41   0 0.11  2.0    2 18.8 37 320   M    M   7 18     40 320
12  21   9  15 -14  50   0 0.00  0.0    2  9.7 18 360   M    M   3        23 340
13  28   7  18 -11  47   0    T    T    2 10.5 17 300   M    M   5        21 300
14  25  13  19 -11  46   0    T    T    T  8.4 16 330   M    M   6 18     20 310
15  38  12  25  -5  40   0 0.00  0.0    0  7.2 15 220   M    M   3 1      18 230
16  33  19  26  -5  39   0    T    T    0 10.5 20 290   M    M   1        23 270
17  36  20  28  -3  37   0    T  0.1    0 11.6 20 110   M    M   6 18     23 110
18  28  23  26  -5  39   0 1.49 19.8    6 19.3 25  70   M    M  10 12     30  80
19  33  23  28  -4  37   0 0.02  0.3   20 13.4 23  30   M    M  10 1      28  30
20  34  16  25  -7  40   0 0.00  0.0   18  5.6 12  50   M    M   2 1      13  50
21  35  18  27  -6  38   0 0.00  0.0   15  9.4 14  70   M    M   0         M  M 
22  37  20  29  -4  36   0 0.00  0.0   12 10.4 17  90   M    M   0 18     21  90
23  38  24  31  -3  34   0 0.00  0.0   10  7.9 14  50   M    M   0        15  50
24  40  26  33  -1  32   0 0.00  0.0    8  6.9 12 190   M    M   2 18     13 190
25  37  27  32  -3  33   0 0.00  0.0    5  9.0 12  70   M    M   4 18     14  40
26  38  21  30  -5  35   0 0.00  0.0    3  7.3 15 210   M    M   1 18     17 200
27  47  26  37   1  28   0 0.00  0.0    1  9.2 14 200   M    M   0 18     16 190
28  60  34  47  11  18   0 0.00  0.0    T 10.7 14 160   M    M   0         M  M 
29  67  43  55  18  10   0 0.00  0.0    0 17.2 32 160   M    M   0        39 160
30  69  39  54  17  11   0 0.22  0.0    0 14.7 45 200   M    M   5 13     53 200
31  54  36  45   7  20   0 0.12  0.0    0 20.9 31 320   M    M   4 1      38 340
================================================================================
SM 1185  653      1091   0  1.98    23.0 365.7          M      106              
================================================================================
AV 38.2 21.1                              11.8 FASTST  PSBL  %   3    MAX(MPH)  
                                 MISC ---->    45 200                 53  200   
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:  ROCHESTER
                                          MONTH:    MARCH
                                          YEAR:     2005
                                          LATITUDE:   43 55 N                   
                                          LONGITUDE:  92 30 W                   

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

AVERAGE MONTHLY: 29.6   TOTAL FOR MONTH:   1.98    1 = FOG                      
DPTR FM NORMAL:  -1.0   DPTR FM NORMAL:    0.10    2 = FOG REDUCING VISIBILITY  
HIGHEST:    69 ON 30    GRTST 24HR  1.49 ON 18-18      TO 1/4 MILE OR LESS      
LOWEST:      4 ON  3                               3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:  23.0 INCHES  5 = HAIL                     
                        GRTST 24HR  19.8 ON 18-18  6 = GLAZE OR RIME            
                        GRTST DEPTH:  20 ON 19     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:   8    0.01 INCH OR MORE:   6                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   4                                  
MIN 32 OR BELOW:  26    0.50 INCH OR MORE:   1                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   1                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.  1091    CLEAR  (SCALE 0-3)  18                                  
DPTR FM NORMAL    25    PTCLDY (SCALE 4-7)   9                                  
SEASONAL TOTAL  6681    CLOUDY (SCALE 8-10)  4                                  
DPTR FM NORMAL  -672                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.     0                                                            
DPTR FM NORMAL     0    [PRESSURE DATA]                                         
SEASONAL TOTAL     0    HIGHEST SLP 30.29 ON 21                                 
DPTR FM NORMAL     0    LOWEST  SLP 29.20 ON 30                                 

[REMARKS]