                   MONTHLY CLIMATOLOGICAL SUMMARY for DEC 2009


NAME: UMassCS               CITY: Amherst               STATE: MA                  
ELEV: 312 ft    LAT: 42.4 N    LONG: 72.5 W


                   TEMPERATURE (F), RAIN (in), WIND SPEED (mph)

                                         HEAT   COOL         AVG
      MEAN                               DEG    DEG          WIND                  DOM
DAY   TEMP   HIGH  TIME    LOW   TIME    DAYS   DAYS   RAIN  SPEED   HIGH  TIME    DIR
---------------------------------------------------------------------------------------
01    36.6   41.0  14:13   31.1  07:35   29.0    0.0   0.00   1.6    23.0  03:15   S
02    40.8   50.0  14:46   28.5  07:41   25.8    0.0   0.17   0.9    10.0  13:30   S
03    58.4   66.6  11:18   42.7  00:00   10.3    0.0   0.96   7.2    36.0  07:40   SW
04    45.5   53.0  14:05   35.5  23:58   20.8    0.0   0.00   2.0    18.0  05:35   W
05    34.5   38.0  11:05   32.9  06:25   29.5    0.0   0.04   2.5    18.0  22:00   NW
06    32.9   37.6  14:27   29.8  23:25   31.3    0.0   0.01   3.4    20.0  15:05   NW
07    31.3   36.5  15:12   24.2  06:41   34.7    0.0   0.00   1.1    11.0  12:35   SSE
08    31.7   40.5  12:53   23.8  07:39   32.8    0.0   0.00   1.2    19.0  13:00   ESE
09    35.4   37.0  23:46   29.1  00:15   32.0    0.0   0.23   2.0    19.0  13:02   WNW
10    35.9   41.1  11:27   27.2  23:58   30.8    0.0   0.35   7.1    34.0  20:41   WSW
11    24.4   27.2  00:00   21.3  07:17   40.8    0.0   0.00  10.9    36.0  00:25   W
12    26.0   32.0  14:31   20.7  23:55   38.7    0.0   0.00   4.2    31.0  12:40   W
13    24.2   34.4  18:57   11.9  06:15   41.8    0.0   0.00   0.4     7.0  01:05   SE
14    37.8   45.0  14:15   32.1  09:33   26.5    0.0   0.60   1.3    13.0  19:45   SSE
15    41.0   45.8  12:52   35.7  22:54   24.2    0.0   0.00   1.9    19.0  17:05   SSW
16    29.6   37.6  00:17   25.9  23:58   33.2    0.0   0.00   8.1    34.0  06:05   WNW
17    16.9   25.9  00:00    8.8  23:59   47.7    0.0   0.00   6.9    34.0  04:22   NW
18    13.0   24.6  15:21    3.7  07:21   50.8    0.0   0.00   0.7     9.0  12:32   WNW
19    18.1   23.4  19:08   10.7  00:50   48.0    0.0   0.00   5.0    22.0  20:40   N
20    24.2   27.6  11:44   18.1  03:51   42.2    0.0   0.00   8.2    31.0  01:28   NNW
21    26.4   32.2  14:13   21.8  23:57   38.0    0.0   0.00   8.5    31.0  11:10   NW
22    22.9   30.3  13:57   18.4  23:35   40.7    0.0   0.00   4.2    29.0  12:30   NW
23    19.5   23.1  12:01   16.4  06:48   45.2    0.0   0.00   4.8    27.0  14:25   NW
24    30.2   38.8  14:52   20.5  00:00   35.3    0.0   0.00   2.6    20.0  11:20   N
25    28.8   33.0  23:20   24.2  04:21   36.4    0.0   0.00   0.6     7.0  08:37   W
26    36.7   42.4  22:59   32.2  02:05   27.7    0.0   0.36   2.5    23.0  15:10   E
27    41.5   49.6  14:22   29.1  23:30   25.7    0.0   0.79   1.6    15.0  15:33   WNW
28    31.3   36.0  14:57   26.4  04:16   33.8    0.0   0.04   3.0    28.0  14:05   W
29    17.3   29.8  00:26   10.2  23:58   45.0    0.0   0.00  11.1    39.0  03:30   WNW
30    19.7   29.8  14:21    9.9  00:50   45.2    0.0   0.00   1.7    20.0  00:00   WSW
31    27.3   30.6  14:23   21.9  04:45   38.8    0.0   0.00   0.6    12.0  10:00   S
---------------------------------------------------------------------------------------
      30.3   66.6     3     3.7    18   1082.5    0.0   3.55   3.8    39.0    29    W

Max >=  90.0:  0
Max <=  32.0:  11
Min <=  32.0:  25
Min <=   0.0:  0
Max Rain    :  0.96 in ON 12/03/2009
Days of Rain: 9 (> 0.01 in) 7 (> 0.10 in) 0 (> 1.00 in)
