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 010640
CF6DLH
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   DULUTH MN
                                          MONTH:     JANUARY
                                          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  22   4  13   4  52   0    T  0.3   13 13.0 24 300   M    M  10 189    32 310
 2   9  -2   4  -5  61   0    T    T   13  8.9 22 300   M    M   5 189    31 310
 3  23   9  16   8  49   0 0.41  5.6   13 17.2 29 100   M    M  10 19     36 100
 4  22 -13   5  -3  60   0 0.03  0.5   17 14.6 23 270   M    M   4 19     29 300
 5  11 -16  -2 -10  67   0 0.00  0.0   17  6.6 15 260   M    M   0        18 260
 6  18   5  12   4  53   0    T    T   17  6.7 17 110   M    M   5 1      20 100
 7  18   4  11   3  54   0 0.01  0.5   16 10.6 22 330   M    M   9 189    28 330
 8   9 -11  -1  -9  66   0    T    T   16  8.7 20 320   M    M   3 18     25 330
 9  14 -14   0  -8  65   0    T    T   16  4.4  8 350   M    M   4 8      10 360
10  14 -10   2  -6  63   0 0.00  0.0   16  6.5 13 260   M    M   2        15 270
11  16   1   9   1  56   0 0.01  0.3   16  6.8 14 310   M    M   6 1      20 300
12  12 -11   1  -7  64   0    T  0.1   16  8.1 20 330   M    M   5        26 330
13  -5 -24 -14 -22  79   0 0.00  0.0   15  6.1 15 330   M    M   1        20 320
14  -6 -19 -12 -20  77   0 0.00  0.0   15 12.3 20 320   M    M   1        28 320
15  -2 -24 -13 -21  78   0 0.00  0.0   15 12.9 20 320   M    M   0        26 310
16   6 -23  -8 -16  73   0    T  0.1   15  8.9 17 200   M    M   3 16     22 190
17  10   0   5  -3  60   0 0.04  1.1   16  9.1 20 330   M    M   7 189    25 320
18  17  -2   8   0  57   0 0.01  0.4   16  7.5 14 350   M    M   5 1      20 360
19  17   3  10   2  55   0 0.01  0.1   16  6.9 18 350   M    M   7 1      25 350
20  18  -1   9   1  56   0    T    T   16  7.9 17 250   M    M   3 18     22 250
21  21  13  17   9  48   0    T    T   15  6.1 12 270   M    M   7 18     15 260
22  22  14  18  10  47   0    T    T   15  5.7 13 120   M    M  10 126    14 320
23  22 -10   6  -2  59   0    T    T   15 15.8 25 310   M    M   5 1689   32 330
24   4 -16  -6 -14  71   0 0.00  0.0   15 14.7 22 270   M    M   0        25 250
25   1 -17  -8 -17  73   0 0.00  0.0   15 10.3 17 270   M    M   0        23 300
26   3 -17  -7 -16  72   0 0.00  0.0   13 10.0 16 300   M    M   0        21 310
27  12 -16  -2 -11  67   0 0.00  0.0   15  8.5 14 220   M    M   0        16 220
28  14  -4   5  -4  60   0 0.01  0.2   15  9.3 16 190   M    M   5 18     21 220
29  11  -5   3  -7  62   0    T  0.1   15 11.7 20 300   M    M   7 18     24 300
30  12 -13   0 -10  65   0    T    T   14  8.7 16 240   M    M   5 18     22 240
31  42  10  26  16  39   0    T    T   14 14.6 37 280   M    M   8 128    52 280
================================================================================
SM  407 -205      1908   0  0.53     9.3 299.1          M      137
================================================================================
AV 13.1 -6.6                               9.6 FASTST   M    M   4    MAX(MPH)
                                 MISC ---->  # 37 280               # 52  280
================================================================================
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:    JANUARY
                                          YEAR:     2009
                                          LATITUDE:   46 49 N
                                          LONGITUDE:  92 11 W

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

AVERAGE MONTHLY:  3.3   TOTAL FOR MONTH:   0.53    1 = FOG OR MIST
DPTR FM NORMAL:  -5.1   DPTR FM NORMAL:   -0.59    2 = FOG REDUCING VISIBILITY
HIGHEST:    42 ON 31    GRTST 24HR  0.41 ON  3- 3      TO 1/4 MILE OR LESS
LOWEST:    -24 ON 15,13                            3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   9.3 INCHES  5 = HAIL
                        GRTST 24HR   5.6 ON   M    6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:  17 ON  6, 5  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:  30    0.01 INCH OR MORE:   8
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   1
MIN 32 OR BELOW:  31    0.50 INCH OR MORE:   0
MIN  0 OR BELOW:  22    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.  1908    CLEAR  (SCALE 0-3)  11
DPTR FM NORMAL   137    PTCLDY (SCALE 4-7)  16
TOTAL FM JUL 1  5795    CLOUDY (SCALE 8-10)  4
DPTR FM NORMAL   125

[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 27.90 ON 31

[REMARKS]
#FINAL-01-09#