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

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CXUS53 KGRR 011017
CF6GRR
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   GRAND RAPIDS MI
                                          MONTH:     DECEMBER
                                          YEAR:      2010
                                          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  33  28  31  -1  34   0 0.21  5.0    T 12.8 23 240   0    0   9 1      26 260
 2  30  28  29  -3  36   0 0.03  0.6    4  7.4 16 260   0    0  10 18     21 270
 3  33  27  30  -2  35   0    T    T    3  2.6 12 300  70   13   9        21  20
 4  32  26  29  -2  36   0 0.00  0.0    2  6.1 18  10   0    0   9 8      24  20
 5  32  25  29  -2  36   0    T    T    1 11.6 24 320  61   11   9        29 320
 6  29  22  26  -5  39   0    T    T    0 14.9 21 310  49    9   8        28 310
 7  27  21  24  -6  41   0    T  0.1    1 11.6 22 310  46    8   8 8      28 330
 8  29  17  23  -7  42   0    T    T    0  7.1 14 330  23    4   8        16 310
 9  30  11  21  -9  44   0 0.06  0.8    0  9.3 18 160  60   11   8 18     23 150
10  38  25  32   3  33   0 0.04  0.5    1 11.0 23 250   0    0   7 18     29 240
11  38  28  33   4  32   0 0.36  0.3    0 11.0 17  90   0    0   9 18     22 100
12  35  20  28  -1  37   0 0.32  2.6    1 14.7 28 360   0    0  10 12     35  10
13  21  14  18 -10  47   0    T  0.1    2 16.7 29 340 414   76   4        36 350
14  25  13  19  -9  46   0    T    T    2 10.3 21 320 452   83   4        28 330
15  27  15  21  -7  44   0    T    T    2  5.7 14 240 150   28   7        16 240
16  28   7  18  -9  47   0 0.00  0.0    2  2.5 13 330 180   33   6 18     16 320
17  28  20  24  -3  41   0    T    T    2 12.4 22 240 117   22   8        26 240
18  25  21  23  -4  42   0 0.01  0.3    2 14.5 23 260   0    0  10 1      29 260
19  27  22  25  -1  40   0    T  0.2    2  7.1 13 220   0    0  10 18     15 210
20  33  25  29   3  36   0 0.00  0.0    2  2.7  9 110 241   45   9 18     10 100
21  31  26  29   3  36   0 0.02  0.2    2  9.2 15 120   0    0  10 18     18 130
22  36  23  30   4  35   0 0.08  0.7    3  9.3 17 330 388   72   8 18     21 330
23  33  31  32   7  33   0 0.00  0.0    3 10.4 17 320   0    0  10        23 330
24  31  24  28   3  37   0 0.00  0.0    2  4.2 12  10  25    5  10        25 340
25  28  22  25   0  40   0 0.00  0.0    2  7.2 15  30   0    0   9        18  30
26  28  20  24  -1  41   0    T    T    2  9.2 17  30 216   40   7        21  30
27  31  20  26   1  39   0 0.00  0.0    1  9.9 20 260 168   31   7        24 270
28  32  22  27   3  38   0 0.00  0.0    1 14.6 23 240   0    0   9 18     30 240
29  37  24  31   7  34   0 0.00  0.0    1  9.3 15 160 318   58   7 128    20 240
30  47  35  41  17  24   0 0.05  0.0    0 11.2 17 170   0    0  10 18     21 180
31  55  45  50  26  15   0 0.60  0.0    0 13.1 20 180   0    0  10 13     28 180
================================================================================
SM  989  707      1160   0  1.78    11.4 299.6         2978    259
================================================================================
AV 31.9 22.8                               9.7 FASTST   96  18   8    MAX(MPH)
                                 MISC ---->  # 29 340               # 36  350
================================================================================
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:     2010
                                          LATITUDE:   42 52 N
                                          LONGITUDE:  85 31 W

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

AVERAGE MONTHLY: 27.4   TOTAL FOR MONTH:   1.78    1 = FOG OR MIST
DPTR FM NORMAL:  -0.2   DPTR FM NORMAL:   -0.92    2 = FOG REDUCING VISIBILITY
HIGHEST:    55 ON 31    GRTST 24HR  0.60 ON 31-31      TO 1/4 MILE OR LESS
LOWEST:      7 ON 16                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:  11.4 INCHES  5 = HAIL
                        GRTST 24HR   5.0 ON  1- 1  6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:   4 ON  2     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:  20    0.01 INCH OR MORE:  11
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   4
MIN 32 OR BELOW:  29    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.  1160    CLEAR  (SCALE 0-3)   0
DPTR FM NORMAL    13    PTCLDY (SCALE 4-7)  13
TOTAL FM JUL 1  2314    CLOUDY (SCALE 8-10) 18
DPTR FM NORMAL  -290

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1   964    HIGHEST SLP 30.45 ON 23
DPTR FM NORMAL   351    LOWEST  SLP 29.45 ON 12

[REMARKS]
#FINAL-12-10#


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