Preliminary Local Climatological Data (WS Form F-6)
 
                                          Station: TWIN CITIES INTERNATIONAL
                                          Month:   DEC
                                          Year:    2000
                                   
  Temperature in F :        :Pcpn   :Snow:  Wind     :Sunshine: Sky     :Pk Wnd
===================================== Columns =================================
1   2   3   4   5  6a  6b    7    8   9   10  11  12  13   14  15   16   17  18
Dy Max Min Avg Dep HDD CDD  Wtr  Snw Dpth Avg Spd Dir Min Psbl S-S Wx    Spd Dr
===============================================================================
 
 1  32  19  26   1  39   0 0.02     M   M  9.5 16  30   M    M   M 1     22  30
 2  28  12  20  -4  45   0    T     M   M  4.6  9 210   M    M   M 1     12 210
 3  32  12  22  -2  43   0 0.00     M   M 16.1 31 200   M    M   M       39 190
 4  35   3  19  -4  46   0 0.01     M   M 16.0 31 320   M    M   M       37 310
 5   5  -2   2 -20  63   0 0.00     M   M  8.3 24 330   M    M   M       28 320
 6  20   5  13  -9  52   0 0.03     M   M  9.5 16 300   M    M   M 1,8   22 290
 7  22  12  17  -4  48   0 0.06     M   M  9.5 18 330   M    M   M 1,8   24  10
 8  12   7  10 -11  55   0    T     M   M  8.0 17 330   M    M   M       21 320
 9  26   9  18  -2  47   0 0.03     M   M  7.6 15 170   M    M   M 1     17 160
10  26  -6  10 -10  55   0 0.04     M   M 12.1 26 340   M    M   M 1     32 340
11   1  -6  -2 -22  67   0 0.02     M   M 11.2 21 320   M    M   M       31  20
12  -1 -11  -6 -25  71   0 0.00     M   M  7.3 15 220   M    M   M 1     16 220
13  11  -4   4 -15  61   0 0.10     M   M  7.2 12 120   M    M   M 1     15 200
14  10  -5   3 -15  62   0    T     M   M  5.9 16 160   M    M   M 1,8   18 170
15  20   6  13  -5  52   0 0.03     M   M 10.6 21 120   M    M   M 8,1   23 110
16  20  -1  10  -7  55   0 0.28     M   M 14.4 26 310   M    M   M 1,8   33 310
17   2  -7  -2 -19  67   0 0.00     M   M  9.0 21 310   0    M   M       24 310
18  12   2   7 -10  58   0 0.27     M   M  6.6 22 340   M    M   M 1,2,8 29  20
19   9  -2   4 -12  61   0    T     M   M  8.0 18 340   M    M   M 8     22 340
20  15   1   8  -8  57   0 0.02     M   M 11.9 20 290   M    M   M 8,1   24 300
21   1  -7  -3 -19  68   0    T     M   M 14.9 23 290   M    M   M 8     30 340
22   0 -13  -6 -21  71   0 0.00     M   M  5.4 13 290   M    M   M       15 280
23   8  -6   1 -14  64   0 0.03     M   M  8.0 17 300   M    M   M 1,8   22 310
24   1 -13  -6 -21  71   0 0.00     M   M  6.0 13 300   M    M   M 8,1   21  10
25  12 -17  -2 -16  67   0 0.01     M   M  5.3 14 200   M    M   M 1,8   16 190
26  13   2   8  -6  57   0    T     M   M  8.2 15 320   M    M   M 8     18 340
27  12   5   9  -5  56   0 0.00     M   M  6.2 14 100   M    M   M 8     21  60
28  12   5   9  -5  56   0 0.25     M   M 12.3 23 110   M    M   M 1,2   26 110
29  18  10  13   0  52   0    T     M   M  9.7 15 360   M    M   M 1,8   28  10
30  13   6  10  -3  55   0    T     M   M  7.7 13 330   M    M   M 1     24 350
31  15   9  12  -1  53   0 0.03     M   M  7.4 12 350   M    M   M 1,8   24  20
===============================================================================
Sm 446  25      1774   0 1.23  M   M 292.1         M      M
===============================================================================
Av 14.4  0.8                              9.4 Fastst  Psbl  %    M    Max(mph)
                                 Misc ---->    31 200                   39  190
===============================================================================
Notes:
# Last of several occurrences
Column 17 Peak Wind in MPH
 
 
Preliminary Local Climatological Data (WS Form F-6), Page 2
 
                                          Station: TWIN CITIES INTERNATIONAL
                                          Month:   DEC
                                          Year:    2000
 
[Temperature Data]      [Precipitation Data]        SYMBOLS USED IN COLUMN 16
 
Average Monthly:  7.6   Total for month:   1.23    1 = FOG
Dptr fm normal: -10.2   Dptr fm normal:    0.15    2 = FOG REDUCING VISIBILITY
Highest:    35 on    4  Grtst 24 hr 0.28 on 16         TO 1/4 MILE OR LESS
Lowest:    -17 on   25                             3 = THUNDER
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS
                        Total for month M    In    5 = HAIL
                        Grtst 24 hr  M             6 = GLAZE OR RIME
                        Grtst depth: M             7 = BLOWING DUST OR SAND:
                                                       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: 16
Max 90 or above:  0     0.10 inch or more:  4
Min 32 or below: 31     0.50 inch or more:  0
Min  0 or below: 14     1.00 inch or more:  0
 
[HDD (Base 65)]
Total this Mo.  1771     Clear   (scale 0-3):  M
Dptr fm normal   311     PtCldy  (scale 4-7):  M
Seasonal total  3302     Cloudy (scale 8-10):  M
Dptr fm normal   186
 
[CDD (Base 65)]
Total this Mo.     0
Dptr fm normal     0     [Pressure Data]
Seasonal total   705     Highest SLP: 30.83 on  25
Dptr fm normal    23      Lowest SLP: 29.68 on   7
===============================================================================
# = LAST OF SEVERAL OCCURRENCES