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 010628
CF6DLH
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   DULUTH
                                          MONTH:     APRIL
                                          YEAR:      2008
                                          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
                                          AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  39  26  33   1  32   0    T    T    9 10.4 17 290   M    M   4 1      23 300
 2  41  23  32  -1  33   0 0.01  0.1    7 12.8 25 210   M    M   4 18     32 230
 3  50  31  41   8  24   0 0.00  0.0    7  9.2 18 250   M    M   4 18     24 250
 4  54  26  40   6  25   0 0.00  0.0    5  7.8 22 230   M    M   2        30 250
 5  46  33  40   6  25   0 0.15  1.0    1  7.8 23  60   M    M   6 135    28  70
 6  33  31  32  -3  33   0 0.61  1.4    1 17.2 25  70   M    M  10 1246   36  60
 7  34  29  32  -3  33   0 0.01  0.1    1 10.9 14 330   M    M   9 16     23  80
 8  32  28  30  -6  35   0    T    T    1  7.1 14  90   M    M  10 1      17  60
 9  41  29  35  -1  30   0    T    T    T  7.0 13 350   M    M   9 1      16 340
10  34  30  32  -4  33   0 0.04  1.1    T 24.7 40  80   M    M   6 49     54  90
11  31  28  30  -7  35   0 0.61  8.8    6 27.4 43  70   M    M  10 389    62  70
12  34  23  29  -8  36   0    T    T    7  9.7 17  20   M    M   6        22  20
13  41  20  31  -7  34   0 0.00  0.0    5  4.6 10 120   M    M   0        14 350
14  46  23  35  -3  30   0 0.00  0.0    4  9.3 20 210   M    M   0        24 210
15  60  39  50  11  15   0 0.00  0.0    3 21.0 33 200   M    M   0        46 200
16  58  34  46   7  19   0 0.00  0.0    T 14.1 28 190   M    M   4        35 300
17  56  34  45   5  20   0 0.00  0.0    0  5.6 13 330   M    M   3        17 320
18  49  30  40   0  25   0 0.00  0.0    0  7.8 17  80   M    M   6        22  90
19  41  37  39  -2  26   0 0.12  0.0    0 10.1 18 100   M    M   9 12     23  80
20  42  36  39  -2  26   0    T  0.0    0 17.3 31  90   M    M   8 12     39  90
21  57  38  48   6  17   0 0.72  0.0    0 13.5 22 260   M    M   4 13     30  80
22  59  36  48   6  17   0 0.03  0.0    0 10.2 21 340   M    M   3 13     28 330
23  69  38  54  12  11   0 0.00  0.0    0 10.1 22 210   M    M   1        26 210
24  53  43  48   5  17   0 0.53  0.0    0 10.3 21 110   M    M   7 12     24  90
25  45  35  40  -3  25   0 0.66  0.0    0 13.6 23  80   M    M  10 1      30  70
26  35  23  29 -15  36   0 0.20  2.1    1 17.4 33 270   M    M   9 129    41 280
27  42  23  33 -11  32   0    T    T    1 11.8 22 270   M    M   6 1      29 270
28  38  25  32 -13  33   0    T    T    0  6.8 16 360   M    M   8        18  20
29  49  25  37  -8  28   0 0.00  0.0    0  8.8 16 230   M    M   2 8      21 260
30  52  34  43  -3  22   0 0.08  0.0    0  8.8 20  90   M    M   3        24  80
================================================================================
SM 1361  910       807   0  3.77    14.6 353.1          M      163
================================================================================
AV 45.4 30.3                              11.8 FASTST  PSBL  %   5    MAX(MPH)
                                 MISC ---->  # 43  70               # 62   70
================================================================================
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
                                          MONTH:    APRIL
                                          YEAR:     2008
                                          LATITUDE:   46 49 N
                                          LONGITUDE:  92 11 W

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

AVERAGE MONTHLY: 37.8   TOTAL FOR MONTH:   3.77    1 = FOG OR MIST
DPTR FM NORMAL:  -1.2   DPTR FM NORMAL:    1.68    2 = FOG REDUCING VISIBILITY
HIGHEST:    69 ON 23    GRTST 24HR  0.75 ON 21-22      TO 1/4 MILE OR LESS
LOWEST:     20 ON 13                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:  14.6 INCHES  5 = HAIL
                        GRTST 24HR   8.8 ON   M    6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:   9 ON  1     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:   2    0.01 INCH OR MORE:  13
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   8
MIN 32 OR BELOW:  18    0.50 INCH OR MORE:   5
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   807    CLEAR  (SCALE 0-3)   8
DPTR FM NORMAL    20    PTCLDY (SCALE 4-7)  14
TOTAL FM JUL 1  8977    CLOUDY (SCALE 8-10)  8
DPTR FM NORMAL  -146

[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 29.30 ON 26

[REMARKS]
#FINAL-04-08#