Monthly Statistics in Rochester for December 2009

 December 2009  HighLowAverage
Temperature 54.9 °F (3-8:30) 6.8 °F (18-3:24) 28.8 °F
Dew Point 51.8 °F (3-6:47) 32.0 °F (31-23:59) 36.2 °F
Humidity 100 % (9-5:19) 51 % (2-18:01) 86.6 %
Wind Speed 19.23 mph SW (9-23:47) - -
Wind Gust 28.85 mph West (10-13:40) - -
Wind - - SW
Pressure 30.47 in (12-8:37) 28.96 in (9-14:36) 30.01 in
Precipitation Total: 2.031 in
Max Rate: 0.314 in/hr (9-15:19)
- -
 
 12/31/2009  HighLowAverage
Temperature 36.0 °F (15:08) 27.1 °F (0:02) 33.1 °F
Dew Point 32.0 °F (13:49) 32.0 °F (23:59) 32 °F
Humidity 95 % (22:38) 88 % (17:38) 92.4 %
Wind Speed 4.47 mph SW (10:36) - -
Wind Gust 6.26 mph South (5:42) - -
Wind - - South
Pressure 30.06 in (0:00) 29.88 in (23:59) 29.96 in
Precipitation Total: 0.043 in - -
 
 12/30/2009  HighLowAverage
Temperature 28.8 °F (15:29) 18.5 °F (7:28) 24.2 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 8.27 mph West (4:51) - -
Wind Gust 12.75 mph West (4:50) - -
Wind - - South
Pressure 30.38 in (2:22) 30.06 in (23:59) 30.26 in
Precipitation Total: 0.000 in - -
 
 12/29/2009  HighLowAverage
Temperature 18.7 °F (23:25) 7.9 °F (7:04) 12.2 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 11.40 mph NW (13:58) - -
Wind Gust 18.34 mph West (1:29) - -
Wind - - West
Pressure 30.38 in (21:07) 29.76 in (0:21) 30.2 in
Precipitation Total: 0.000 in - -
 
 12/28/2009  HighLowAverage
Temperature 32.4 °F (0:00) 16.5 °F (23:59) 26.8 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 13.64 mph West (11:42) - -
Wind Gust 23.26 mph West (22:57) - -
Wind - - West
Pressure 29.76 in (23:53) 29.55 in (20:21) 29.59 in
Precipitation Total: 0.000 in - -
 
 12/27/2009  HighLowAverage
Temperature 38.5 °F (11:23) 29.7 °F (8:02) 33.4 °F
Dew Point 35.6 °F (0:00) 32.0 °F (10:40) 33.9 °F
Humidity 100 % (0:08) 87 % (10:40) 99.1 %
Wind Speed 8.77 mph West (12:14) - -
Wind Gust 14.54 mph West (11:29) - -
Wind - - West
Pressure 29.91 in (0:00) 29.67 in (23:59) 29.83 in
Precipitation Total: 0.000 in - -
 
 12/26/2009  HighLowAverage
Temperature 43.0 °F (10:33) 35.8 °F (23:59) 40 °F
Dew Point 41.0 °F (13:59) 32.0 °F (9:48) 35.2 °F
Humidity 99 % (22:39) 66 % (8:28) 83.3 %
Wind Speed 7.88 mph SE (1:02) - -
Wind Gust 13.64 mph SE (0:30) - -
Wind - - South
Pressure 29.97 in (0:00) 29.91 in (23:59) 29.93 in
Precipitation Total: 0.413 in
Max Rate: 0.078 in/hr (15:00)
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 12/25/2009  HighLowAverage
Temperature 39.7 °F (23:53) 23.9 °F (4:42) 32.6 °F
Dew Point 37.4 °F (22:58) 32.0 °F (16:44) 35.3 °F
Humidity 97 % (22:58) 79 % (23:59) 92.3 %
Wind Speed 9.12 mph East (19:53) - -
Wind Gust 17.89 mph East (19:42) - -
Wind - - East
Pressure 30.35 in (0:00) 29.97 in (23:59) 30.16 in
Precipitation Total: 0.414 in
Max Rate: 0.236 in/hr (19:31)
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 12/24/2009  HighLowAverage
Temperature 29.5 °F (14:19) 22.8 °F (5:27) 25.7 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 6.03 mph SE (20:13) - -
Wind Gust 8.27 mph West (6:02) - -
Wind - - South
Pressure 30.47 in (6:23) 30.35 in (23:59) 30.4 in
Precipitation Total: 0.000 in - -
 
 12/23/2009  HighLowAverage
Temperature 25.3 °F (14:09) 13.1 °F (2:43) 20.4 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 9.26 mph West (13:44) - -
Wind Gust 18.79 mph West (14:18) - -
Wind - - West
Pressure 30.38 in (22:37) 30.23 in (14:52) 30.28 in
Precipitation Total: 0.000 in - -
 
 12/22/2009  HighLowAverage
Temperature 24.6 °F (0:33) 15.6 °F (23:59) 19.9 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 6.93 mph NW (14:20) - -
Wind Gust 12.75 mph West (14:43) - -
Wind - - NW
Pressure 30.26 in (19:08) 30.06 in (0:52) 30.18 in
Precipitation Total: 0.000 in - -
 
 12/21/2009  HighLowAverage
Temperature 30.0 °F (0:14) 23.9 °F (23:59) 27.2 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 5.92 mph NW (0:16) - -
Wind Gust 8.72 mph NW (0:40) - -
Wind - - West
Pressure 30.08 in (22:07) 29.97 in (2:21) 30.01 in
Precipitation Total: 0.000 in - -
 
 12/20/2009  HighLowAverage
Temperature 29.5 °F (14:26) 22.3 °F (7:36) 26 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 5.81 mph NW (14:43) - -
Wind Gust 9.61 mph West (11:48) - -
Wind - - West
Pressure 30.00 in (17:22) 29.85 in (4:21) 29.93 in
Precipitation Total: 0.000 in - -
 
 12/19/2009  HighLowAverage
Temperature 26.2 °F (18:00) 15.4 °F (1:36) 22 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 7.24 mph NE (13:55) - -
Wind Gust 11.85 mph SE (13:54) - -
Wind - - East
Pressure 30.03 in (0:00) 29.82 in (16:06) 29.89 in
Precipitation Total: 0.000 in - -
 
 12/18/2009  HighLowAverage
Temperature 21.9 °F (13:55) 6.8 °F (3:24) 14.6 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 5.36 mph East (18:42) - -
Wind Gust 8.27 mph SE (12:28) - -
Wind - - South
Pressure 30.35 in (0:00) 30.03 in (23:59) 30.18 in
Precipitation Total: 0.000 in - -
 
 12/17/2009  HighLowAverage
Temperature 21.7 °F (0:19) 6.8 °F (21:00) 14.6 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 5.14 mph NW (12:04) - -
Wind Gust 8.27 mph NW (7:35) - -
Wind - - West
Pressure 30.44 in (8:07) 30.32 in (1:51) 30.39 in
Precipitation Total: 0.000 in - -
 
 12/16/2009  HighLowAverage
Temperature 26.2 °F (3:04) 21.4 °F (23:39) 23.1 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 11.70 mph West (8:27) - -
Wind Gust 19.23 mph West (12:00) - -
Wind - - West
Pressure 30.32 in (21:37) 30.20 in (2:36) 30.26 in
Precipitation Total: 0.000 in - -
 
 12/15/2009  HighLowAverage
Temperature 42.3 °F (2:44) 25.5 °F (23:59) 35.4 °F
Dew Point 42.8 °F (2:27) 32.0 °F (10:01) 37.1 °F
Humidity 100 % (2:27) 75 % (7:08) 89.6 %
Wind Speed 10.51 mph West (7:04) - -
Wind Gust 18.34 mph West (5:33) - -
Wind - - West
Pressure 30.20 in (23:22) 29.73 in (2:06) 29.93 in
Precipitation Total: 0.043 in - -
 
 12/14/2009  HighLowAverage
Temperature 40.3 °F (23:43) 34.5 °F (7:36) 36.9 °F
Dew Point 39.2 °F (23:39) 32.0 °F (20:12) 33.7 °F
Humidity 97 % (22:30) 80 % (10:28) 90.1 %
Wind Speed 4.83 mph West (0:14) - -
Wind Gust 8.05 mph SE (17:06) - -
Wind - - South
Pressure 30.06 in (3:37) 29.73 in (23:59) 29.91 in
Precipitation Total: 0.039 in - -
 
 12/13/2009  HighLowAverage
Temperature 37.8 °F (17:38) 22.6 °F (3:30) 32.5 °F
Dew Point 35.6 °F (17:07) 32.0 °F (22:11) 34 °F
Humidity 96 % (17:07) 85 % (22:11) 90.5 %
Wind Speed 5.90 mph West (19:51) - -
Wind Gust 12.75 mph West (19:30) - -
Wind - - SW
Pressure 30.29 in (0:00) 29.76 in (14:36) 29.97 in
Precipitation Total: 0.166 in
Max Rate: 0.039 in/hr (16:39)
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 12/12/2009  HighLowAverage
Temperature 32.7 °F (15:00) 18.9 °F (0:44) 24.8 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 10.96 mph West (2:34) - -
Wind Gust 17.00 mph West (0:01) - -
Wind - - SW
Pressure 30.47 in (8:37) 30.26 in (1:07) 30.37 in
Precipitation Total: 0.000 in - -
 
 12/11/2009  HighLowAverage
Temperature 21.9 °F (13:03) 14.9 °F (4:27) 18.4 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 16.72 mph West (14:13) - -
Wind Gust 28.85 mph SW (14:43) - -
Wind - - West
Pressure 30.26 in (23:37) 29.79 in (0:21) 30.02 in
Precipitation Total: 0.000 in - -
 
 12/10/2009  HighLowAverage
Temperature 35.6 °F (0:00) 15.4 °F (22:41) 24.7 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 15.65 mph West (10:05) - -
Wind Gust 28.85 mph West (13:40) - -
Wind - - West
Pressure 29.79 in (22:52) 29.20 in (0:36) 29.51 in
Precipitation Total: 0.000 in - -
 
 12/9/2009  HighLowAverage
Temperature 45.1 °F (12:57) 30.6 °F (1:30) 37.2 °F
Dew Point 37.4 °F (15:15) 32.0 °F (18:43) 33.7 °F
Humidity 100 % (5:19) 60 % (13:45) 81.2 %
Wind Speed 19.23 mph SW (23:47) - -
Wind Gust 27.51 mph West (19:17) - -
Wind - - South
Pressure 29.97 in (0:00) 28.96 in (14:36) 29.28 in
Precipitation Total: 0.374 in
Max Rate: 0.314 in/hr (15:19)
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 12/8/2009  HighLowAverage
Temperature 35.6 °F (11:09) 29.7 °F (1:33) 31.8 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 7.96 mph West (2:58) - -
Wind Gust 12.30 mph West (2:57) - -
Wind - - South
Pressure 30.38 in (10:07) 29.97 in (23:59) 30.23 in
Precipitation Total: 0.000 in - -
 
 12/7/2009  HighLowAverage
Temperature 34.5 °F (13:34) 27.5 °F (7:00) 30.4 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 6.44 mph West (17:06) - -
Wind Gust 8.72 mph West (16:00) - -
Wind - - SW
Pressure 30.26 in (0:00) 30.06 in (16:07) 30.15 in
Precipitation Total: 0.000 in - -
 
 12/6/2009  HighLowAverage
Temperature 36.5 °F (15:02) 25.3 °F (0:03) 30.8 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 11.31 mph West (10:49) - -
Wind Gust 18.34 mph West (10:34) - -
Wind - - SW
Pressure 30.26 in (22:23) 30.08 in (2:36) 30.18 in
Precipitation Total: 0.000 in - -
 
 12/5/2009  HighLowAverage
Temperature 34.9 °F (13:39) 25.0 °F (23:51) 29.9 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 3.13 mph SW (23:03) - -
Wind Gust 5.36 mph West (23:55) - -
Wind - - West
Pressure 30.17 in (0:00) 30.03 in (13:51) 30.1 in
Precipitation Total: 0.000 in - -
 
 12/4/2009  HighLowAverage
Temperature 40.6 °F (14:00) 29.1 °F (23:49) 35.5 °F
Dew Point n/a n/a n/a
Humidity n/a n/a n/a
Wind Speed 12.75 mph West (14:34) - -
Wind Gust 17.44 mph West (10:37) - -
Wind - - SW
Pressure 30.17 in (23:22) 29.91 in (1:36) 30.04 in
Precipitation Total: 0.000 in - -
 
 12/3/2009  HighLowAverage
Temperature 54.9 °F (8:30) 38.8 °F (23:59) 48.1 °F
Dew Point 51.8 °F (6:47) 32.0 °F (20:17) 43.1 °F
Humidity 97 % (0:01) 59 % (17:45) 77.9 %
Wind Speed 16.32 mph SW (8:35) - -
Wind Gust 26.17 mph West (8:39) - -
Wind - - SW
Pressure 29.91 in (23:37) 29.14 in (5:51) 29.48 in
Precipitation Total: 0.082 in
Max Rate: 0.078 in/hr (3:57)
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 12/2/2009  HighLowAverage
Temperature 53.4 °F (13:31) 36.1 °F (7:39) 43.3 °F
Dew Point 44.6 °F (23:18) 32.0 °F (18:09) 41.5 °F
Humidity 97 % (23:18) 51 % (18:01) 87.8 %
Wind Speed 8.27 mph East (20:48) - -
Wind Gust 15.43 mph East (21:16) - -
Wind - - South
Pressure 30.00 in (2:07) 29.35 in (23:59) 29.82 in
Precipitation Total: 0.292 in
Max Rate: 0.157 in/hr (20:26)
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 12/1/2009  HighLowAverage
Temperature 45.0 °F (13:07) 27.9 °F (0:18) 37 °F
Dew Point 35.6 °F (10:28) 32.0 °F (10:56) 32.8 °F
Humidity 97 % (8:10) 77 % (10:56) 93 %
Wind Speed 10.51 mph West (13:48) - -
Wind Gust 17.00 mph SW (12:41) - -
Wind - - SW
Pressure 30.00 in (21:07) 29.73 in (6:51) 29.84 in
Precipitation Total: 0.165 in
Max Rate: 0.314 in/hr (11:31)
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