WFO Monthly/Daily Climate Data
Issued by NWS Portland, ME

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CXUS51 KGYX 161000
CF6PWM
PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   PORTLAND ME
                                          MONTH:     DECEMBER
                                          YEAR:      2017
                                          LATITUDE:   43 39 N
                                          LONGITUDE:  70 19 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 0.08  0.0    0  6.9 15 190   M    M   8 1      25 170
 2  40  28  34   0  31   0 0.00  0.0    0  2.9 10 130   M    M   6        14 140
 3  42  25  34   0  31   0 0.00  0.0    0  4.1  9 130   M    M   4        14  60
 4  41  22  32  -1  33   0 0.00  0.0    0  4.9 14 140   M    M   1        17 140
 5  52  29  41   8  24   0 0.33  0.0    0  8.6 22 170   M    M   9 1      45 170
 6  54  31  43  11  22   0 0.31  0.0    0 12.4 35 180   M    M   6 1      44 180
 7  43  28  36   4  29   0 0.00  0.0    0 10.3 20 260   M    M   4        26 270
 8  38  29  34   2  31   0 0.00  0.0    0  8.7 18 220   M    M   6        23 220
 9  36  29  33   2  32   0 0.49  6.2    0  5.9 15 350   M    M   8 1      23 350
10  37  26  32   1  33   0 0.02  0.2    5  8.9 16 230   M    M   6 1      25 270
11  38  26  32   2  33   0 0.00  0.0    3  9.4 17 250   M    M   7        27 270
12  33  19  26  -4  39   0 0.81  2.3    3  8.4 17 260   M    M  10 1468   24 270
13  31  17  24  -6  41   0    T    T    3 12.2 21 270   M    M   6        32 260
14  26  14  20  -9  45   0 0.00  0.0    0 13.1 18 270   M    M   3        28 250
15   M   M   M   M   M   M    M    M    M   M   M   M   M    M   M         M  M
================================================================================
SM  558  352       451   0  2.04     8.7 116.7          M       84
================================================================================
AV 39.9 25.1                               8.3 FASTST   M    M   6    MAX(MPH)
                                 MISC ---->  # 35 180               # 45  170
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

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

                                          STATION:  PORTLAND ME
                                          MONTH:    DECEMBER
                                          YEAR:     2017
                                          LATITUDE:   43 39 N
                                          LONGITUDE:  70 19 W

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

AVERAGE MONTHLY: 32.5   TOTAL FOR MONTH:   2.04    1 = FOG OR MIST
DPTR FM NORMAL:   0.9   DPTR FM NORMAL:   -0.03    2 = FOG REDUCING VISIBILITY
HIGHEST:    54 ON  6    GRTST 24HR  0.81 ON 12-12      TO 1/4 MILE OR LESS
LOWEST:     14 ON 14                               3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        TOTAL MONTH:   8.7 INCHES  5 = HAIL
                        GRTST 24HR   6.2 ON  9- 9  6 = FREEZING RAIN OR DRIZZLE
                        GRTST DEPTH:   5 ON 10     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:   6
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   4
MIN 32 OR BELOW:  14    0.50 INCH OR MORE:   1
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0

[HDD (BASE 65) ]
TOTAL THIS MO.   451    CLEAR  (SCALE 0-3)   1
DPTR FM NORMAL   -49    PTCLDY (SCALE 4-7)  10
TOTAL FM JUL 1  1616    CLOUDY (SCALE 8-10)  3
DPTR FM NORMAL  -375

[CDD (BASE 65) ]
TOTAL THIS MO.     0
DPTR FM NORMAL     0    [PRESSURE DATA]
TOTAL FM JAN 1   433    HIGHEST SLP M ON M
DPTR FM NORMAL    74    LOWEST  SLP 29.20 ON 13

[REMARKS]



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