WFO Monthly/Daily Climate Data
Issued by NWS Grand Rapids, MI

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000
CXUS53 KGRR 311017
CF6GRR
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   GRAND RAPIDS MI
                                          MONTH:     DECEMBER
                                          YEAR:      2011
                                          LATITUDE:   42 52 N
                                          LONGITUDE:  85 31 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  47  29  38   4  27   0 0.01  0.0    0  7.5 14 230 415   75   5 1      21 200
 2  41  28  35   1  30   0 0.08  0.1    0  5.4 13 350 490   88   4 1      17  90
 3  49  29  39   6  26   0 0.13  0.0    0 10.8 21 170   9    1   8 18     31 190
 4  51  40  46  13  19   0 0.41  0.0    0 12.6 21 230   0    0  10 1      31 190
 5  40  33  37   5  28   0 0.00  0.0    0  8.5 16  30   0    0   9        18  30
 6  33  26  30  -2  35   0 0.00  0.0    0  6.0 13 340   0    0   9        16 330
 7  38  25  32   0  33   0    T    T    0  9.7 24 250 248   45   8        29 260
 8  38  26  32   1  33   0    T    T    0  9.8 21 250 146   27   8        25 270
 9  35  20  28  -3  37   0 0.07  0.9    1  8.7 18 260  86   16   8 1      24 260
10  29  17  23  -8  42   0 0.00  0.0    0  9.6 20 250 406   74   5        24 250
11  40  22  31   1  34   0 0.00  0.0    0 11.0 20 220 515   94   3        25 210
12  45  24  35   5  30   0 0.00  0.0    0  6.0 13 190 407   75   4        16 180
13  42  32  37   7  28   0 0.00  0.0    0  3.5  9 210   0    0  10 8      12 200
14  53  38  46  17  19   0 0.75  0.0    0  9.2 17 200   0    0  10 18     24 200
15  57  34  46  17  19   0 0.36    T    0 19.6 35 270   0    0  10 1      45 270
16  34  30  32   3  33   0 0.00  0.0    0  9.1 21 300   0    0  10        26 290
17  32  27  30   2  35   0 0.05  0.5    0  6.4 13 220   0    0  10 18     17 210
18  40  31  36   8  29   0 0.00  0.0    0  9.1 20 200 210   39   8        28 210
19  47  34  41  13  24   0    T  0.0    0 11.9 22 240  30    6   8        28 230
20  36  28  32   4  33   0 0.02  0.2    0  6.9 17 120  25    5  10 1      20 120
21  41  34  38  10  27   0 0.04  0.0    0  5.8 12 250   0    0   9 12     14 250
22  41  32  37  10  28   0    T    T    0  6.8 17 360   0    0  10 18     24 350
23  34  28  31   4  34   0 0.05  1.0    0  7.2 16 330  68   13  10 1      21 350
24  38  30  34   7  31   0 0.01  0.2    1 10.7 18 200 358   66   6 18     25 200
25  42  33  38  11  27   0 0.00  0.0    0 13.5 25 280  49    9   7        32 280
26  47  32  40  14  25   0 0.00  0.0    0  9.9 20 210 470   87   6        25 210
27  39  28  34   8  31   0 0.31  1.3    0 11.5 29 320   0    0  10 18     40 320
28  29  22  26   0  39   0 0.00  0.0    1  8.3 23 330  79   15   8        31 330
29  40  26  33   7  32   0 0.04  0.3    0  7.9 16 280   8    1  10 18     24 280
30  38  34  36  10  29   0 0.26  0.0    0  8.3 15  50   0    0  10 18     20 270
================================================================================
SM 1216  872       897   0  2.59     4.5 271.2         4019    243
================================================================================
AV 40.5 29.1                               9.0 FASTST  134  25   8    MAX(MPH)
                                 MISC ---->  # 35 270               # 45  270
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:  GRAND RAPIDS MI
                                          MONTH:    DECEMBER
                                          YEAR:     2011
                                          LATITUDE:   42 52 N
                                          LONGITUDE:  85 31 W

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

AVERAGE MONTHLY: 34.8   TOTAL FOR MONTH:   2.59    1 = FOG OR MIST
DPTR FM NORMAL:   5.5   DPTR FM NORMAL:    0.17    2 = FOG REDUCING VISIBILITY
HIGHEST:    57 ON 15    GRTST 24HR  0.96 ON 14-15      TO 1/4 MILE OR LESS
LOWEST:     17 ON 10                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   4.5 INCHES  5 = HAIL
                        GRTST 24HR   1.3 ON   M    6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:   1 ON 28,24  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:   3    0.01 INCH OR MORE:  15
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   6
MIN 32 OR BELOW:  22    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   897    CLEAR  (SCALE 0-3)   1
DPTR FM NORMAL  -174    PTCLDY (SCALE 4-7)  14
TOTAL FM JUL 1  2070    CLOUDY (SCALE 8-10) 15
DPTR FM NORMAL  -339

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1   894    HIGHEST SLP M ON M
DPTR FM NORMAL   195    LOWEST  SLP 29.47 ON 27

[REMARKS]



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