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


000
CXUS53 KDLH 010630
CF6DLH
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   DULUTH MN
                                          MONTH:     MARCH
                                          YEAR:      2009
                                          LATITUDE:   46 49 N
                                          LONGITUDE:  92 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  13  -9   2 -18  63   0 0.00  0.0   10  3.8 10  30   M    M   0        14  20
 2  17 -14   2 -18  63   0 0.00  0.0    9  5.4 10 110   M    M   0        13 170
 3  23   1  12  -8  53   0 0.00  0.0    9  8.0 14 100   M    M   4        18 180
 4  33  17  25   4  40   0 0.00  0.0    9  9.1 16 120   M    M   2        20 130
 5  40  24  32  11  33   0 0.00  0.0    9  6.1 20 130   M    M   6 18     22 110
 6  42  30  36  15  29   0 0.10  0.7    9 13.2 21 250   M    M   6 18     24 270
 7  31  16  24   2  41   0    T    T    7  7.5 14 340   M    M   2        20 310
 8  26  15  21  -1  44   0 0.00  0.0    6 12.0 21  70   M    M   6        25  70
 9  37  18  28   6  37   0 0.00  0.0    6  6.1 13  70   M    M   8 1      16  70
10  27   7  17  -6  48   0 0.36  6.1    6 13.1 29 310   M    M   9 129    39 300
11   7  -8   0 -23  65   0    T  0.2   10 17.5 32 310   M    M   4 89     45 310
12  13 -15  -1 -25  66   0 0.00  0.0   10  9.9 17 220   M    M   0 8      21 220
13  34   5  20  -4  45   0    T    T   10 14.6 23 240   M    M   2        29 250
14  48  25  37  13  28   0 0.00  0.0   10 12.7 24 220   M    M   2        30 230
15  51  32  42  17  23   0 0.00  0.0    8  9.9 17 150   M    M   0        36 190
16  55  33  44  19  21   0 0.00  0.0    6  7.0 16 190   M    M   1 18     20 170
17  50  34  42  16  23   0 0.00  0.0    3 10.9 24 300   M    M   3 18     33 280
18  38  17  28   2  37   0 0.00  0.0    2 15.8 29 290   M    M   1        38 290
19  28  11  20  -6  45   0 0.00  0.0    2  4.9 15 340   M    M   0        20 340
20  33  18  26  -1  39   0 0.17  1.6    1  8.2 15 120   M    M   7 126    18 120
21  38  31  35   8  30   0 0.00  0.0    2  7.2 25  90   M    M   9 128    31 110
22  34  29  32   4  33   0 0.00  0.0    T 21.7 32  80   M    M   7 1      40  80
23  35  31  33   5  32   0 1.35  0.0    T 20.3 30 100   M    M  10 126    39  90
24  37  33  35   6  30   0 0.59  0.0    T 17.5 26  70   M    M  10 123    33  90
25  37  23  30   1  35   0 0.09  0.1    T 15.0 25 240   M    M   7 12     32 250
26  24  17  21  -9  44   0    T    M    0 11.1 20 260   M    M   9 18     23 290
27  27  15  21  -9  44   0    T    T    T  7.2 14 340   M    M   8        20 340
28  26  18  22  -8  43   0 0.01  0.6    T  7.3 13  60   M    M  10 18     17  60
29  39  13  26  -5  39   0 0.00  0.0    T  7.1 15 340   M    M   2 8      21 350
30  35  21  28  -3  37   0 0.00  0.0    T 11.3 24  80   M    M   4        32  90
31  31  26  29  -3  36   0 0.70  6.2    1 21.2 35  80   M    M  10 1469   45  80
================================================================================
SM 1009  514      1246   0  3.37    15.5 342.6          M      149
================================================================================
AV 32.5 16.6                              11.1 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->  # 35  80               # 45  310
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:  DULUTH MN
                                          MONTH:    MARCH
                                          YEAR:     2009
                                          LATITUDE:   46 49 N
                                          LONGITUDE:  92 11 W

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

AVERAGE MONTHLY: 24.6   TOTAL FOR MONTH:   3.37    1 = FOG OR MIST
DPTR FM NORMAL:  -0.8   DPTR FM NORMAL:    1.68    2 = FOG REDUCING VISIBILITY
HIGHEST:    55 ON 16    GRTST 24HR  1.35 ON 23-23      TO 1/4 MILE OR LESS
LOWEST:    -15 ON 12                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:  15.5 INCHES  5 = HAIL
                        GRTST 24HR   6.2 ON   M    6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:  10 ON 14,13  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:  13    0.01 INCH OR MORE:   8
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   6
MIN 32 OR BELOW:  28    0.50 INCH OR MORE:   3
MIN  0 OR BELOW:   4    1.00 INCH OR MORE:   1

[HDD (BASE 65) ]
TOTAL THIS MO.  1246    CLEAR  (SCALE 0-3)  13
DPTR FM NORMAL     2    PTCLDY (SCALE 4-7)  10
TOTAL FM JUL 1  8428    CLOUDY (SCALE 8-10)  8
DPTR FM NORMAL    92

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1     0    HIGHEST SLP M ON M
DPTR FM NORMAL     0    LOWEST  SLP 29.32 ON 31

[REMARKS]
#FINAL-03-09#