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 010642
CF6DLH
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   DULUTH MN
                                          MONTH:     FEBRUARY
                                          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  32  20  26  16  39   0    T    T   14 19.3 31 280   M    M   4 9      40 290
 2  20  -4   8  -3  57   0    T  0.1   14 14.5 25 280   M    M   6 89     32 300
 3   8 -11  -1 -12  66   0    T    T   14  8.4 16 350   M    M   2        22 340
 4  12 -16  -2 -13  67   0 0.00  0.0   14  6.7 16 180   M    M   1        20 170
 5  28   5  17   5  48   0 0.00  0.0   14  5.9 15 170   M    M   0        21 180
 6  33  11  22  10  43   0 0.00  0.0   13  8.2 16 170   M    M   3 18     20 150
 7  35  18  27  15  38   0 0.00  0.0   13  9.6 20 320   M    M   7 18     28 330
 8  36  15  26  13  39   0 0.00  0.0   13  9.8 21 260   M    M   1        25 270
 9  37  23  30  17  35   0 0.08  0.0   13 14.9 25 100   M    M   9 126    32  90
10  40  34  37  24  28   0 0.71  0.0   11 18.4 32 100   M    M  10 12     43 110
11  34  31  33  19  32   0 0.01  0.1    8  9.1 18 290   M    M   8 12     24 300
12  31  22  27  13  38   0    T  0.1    8 13.0 22 280   M    M   9 1      29 290
13  24  12  18   4  47   0    T  0.2    8  6.9 13 260   M    M   8 1      16 300
14  16   4  10  -5  55   0 0.01  0.6    7  7.4 15 330   M    M   8 18     20 320
15  19  -3   8  -7  57   0 0.00  0.0    7  5.2 13 280   M    M   1        15 290
16  29  12  21   6  44   0    T  0.2    7  9.0 18 210   M    M   9 1      23 220
17  30  21  26  10  39   0 0.02  0.9    7  9.5 16  70   M    M   8 1      21  80
18  21   1  11  -5  54   0 0.03  1.0    9 14.3 22 340   M    M   5 18     30 340
19  15  -5   5 -11  60   0 0.00  0.0    9  9.7 17 300   M    M   0        22 330
20  19  -8   6 -10  59   0    T  0.2    9  3.0 10 330   M    M   4 1      13 330
21  21   6  14  -3  51   0 0.03  0.7   10  8.9 17 340   M    M   7 1      23 330
22  18   0   9  -8  56   0    T    T    9  8.3 17 340   M    M   3        23 350
23  17 -11   3 -15  62   0 0.00  0.0    9  6.7 16 100   M    M   1        21 130
24  32  13  23   5  42   0 0.00  0.0    9  8.0 15 210   M    M   2        17 220
25  31  13  22   4  43   0 0.02  0.1    8  9.7 22 290   M    M   6 1468   29 290
26  16   3  10  -9  55   0 0.07  2.9   11 10.7 22  60   M    M   7 1289   26  40
27   4 -13  -4 -23  69   0 0.00  0.0   11  6.7 17 350   M    M   0        22 360
28  19 -18   1 -18  64   0 0.00  0.0   11 10.4 24 270   M    M   0        28 310
================================================================================
SM  677  175      1387   0  0.98     7.1 272.2          M      129
================================================================================
AV 24.2  6.2                               9.7 FASTST   M    M   5    MAX(MPH)
                                 MISC ---->  # 32 100               # 43  110
================================================================================
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:    FEBRUARY
                                          YEAR:     2009
                                          LATITUDE:   46 49 N
                                          LONGITUDE:  92 11 W

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

AVERAGE MONTHLY: 15.2   TOTAL FOR MONTH:   0.98    1 = FOG OR MIST
DPTR FM NORMAL:   0.4   DPTR FM NORMAL:    0.15    2 = FOG REDUCING VISIBILITY
HIGHEST:    40 ON 10    GRTST 24HR  0.71 ON 10-10      TO 1/4 MILE OR LESS
LOWEST:    -18 ON 28                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   7.1 INCHES  5 = HAIL
                        GRTST 24HR   2.9 ON   M    6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:  14 ON  5, 4  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:  22    0.01 INCH OR MORE:   9
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   1
MIN 32 OR BELOW:  27    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:  10    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.  1387    CLEAR  (SCALE 0-3)  11
DPTR FM NORMAL   -35    PTCLDY (SCALE 4-7)  12
TOTAL FM JUL 1  7182    CLOUDY (SCALE 8-10)  5
DPTR FM NORMAL    90

[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 29.10 ON 10

[REMARKS]
#FINAL-02-09#