Monthly Statistics in Rochester for 2009

 2009  HighLowAverage
Temperature 91.8 °F (8/17-15:29) -2.1 °F (1/17-7:23) 47.9 °F
Dew Point 75.2 °F (8/9-12:00) 32.0 °F (12/31-23:59) 47.3 °F
Humidity 100 % (1/7-6:58) 17 % (5/20-18:27) 66.6 %
Wind Speed 21.47 mph SW (4/4-0:26) - -
Wind Gust 37.58 mph West (3/11-13:47) - -
Wind - - SW
Pressure 30.62 in (4/29-8:52) 28.96 in (12/9-14:36) 29.98 in
Precipitation Total: 29.560 in
Max Rate: 4.881 in/hr (7/29-19:04)
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 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)
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 November 2009  HighLowAverage
Temperature 70.0 °F (9-14:38) 23.9 °F (13-7:32) 43.6 °F
Dew Point 55.4 °F (15-10:03) 32.0 °F (30-14:09) 38.4 °F
Humidity 100 % (15-3:32) 27 % (9-15:09) 73.5 %
Wind Speed 13.19 mph West (20-11:26) - -
Wind Gust 20.13 mph West (20-11:55) - -
Wind - - South
Pressure 30.53 in (11-9:37) 29.55 in (30-2:06) 30.09 in
Precipitation Total: 1.035 in
Max Rate: 0.196 in/hr (19-10:58)
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 October 2009  HighLowAverage
Temperature 68.4 °F (3-12:49) 27.9 °F (19-5:12) 48.8 °F
Dew Point 60.8 °F (3-10:24) 32.0 °F (31-21:18) 41.4 °F
Humidity 100 % (2-18:44) 28 % (3-14:59) 72.1 %
Wind Speed 17.00 mph West (7-11:09) - -
Wind Gust 30.64 mph SW (31-17:11) - -
Wind - - SW
Pressure 30.41 in (12-6:52) 29.29 in (7-4:21) 29.98 in
Precipitation Total: 2.945 in
Max Rate: 0.511 in/hr (23-22:18)
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 September 2009  HighLowAverage
Temperature 82.2 °F (21-15:43) 40.3 °F (26-5:27) 61.3 °F
Dew Point 69.8 °F (9-10:42) 32.0 °F (30-17:30) 48.9 °F
Humidity 100 % (14-8:33) 23 % (20-15:58) 66.9 %
Wind Speed 17.00 mph West (28-12:42) - -
Wind Gust 24.15 mph West (28-12:41) - -
Wind - - SW
Pressure 30.38 in (6-9:22) 29.20 in (28-12:36) 30.07 in
Precipitation Total: 2.237 in
Max Rate: 1.456 in/hr (28-14:50)
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 August 2009  HighLowAverage
Temperature 91.8 °F (17-15:29) 50.2 °F (31-7:28) 70 °F
Dew Point 75.2 °F (9-12:00) 33.8 °F (31-15:27) 56.3 °F
Humidity 100 % (13-9:15) 27 % (31-15:25) 65.6 %
Wind Speed 11.40 mph NW (20-22:34) - -
Wind Gust 22.36 mph West (20-22:33) - -
Wind - - SW
Pressure 30.26 in (31-10:53) 29.61 in (29-14:37) 29.98 in
Precipitation Total: 1.700 in
Max Rate: 3.543 in/hr (29-11:43)
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 July 2009  HighLowAverage
Temperature 86.9 °F (28-15:27) 49.8 °F (14-6:18) 67.1 °F
Dew Point 69.8 °F (23-11:38) 33.8 °F (13-21:41) 53.1 °F
Humidity 98 % (2-11:29) 23 % (10-14:49) 64.4 %
Wind Speed 10.02 mph West (11-18:36) - -
Wind Gust 19.68 mph West (13-14:29) - -
Wind - - SW
Pressure 30.23 in (10-4:22) 29.55 in (1-0:21) 29.89 in
Precipitation Total: 3.571 in
Max Rate: 4.881 in/hr (29-19:04)
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 June 2009  HighLowAverage
Temperature 88.7 °F (24-14:40) 41.2 °F (1-3:27) 64.2 °F
Dew Point 69.8 °F (9-9:05) 32.0 °F (7-17:18) 49.3 °F
Humidity 100 % (18-9:42) 19 % (24-18:16) 62.4 %
Wind Speed 12.75 mph West (9-12:33) - -
Wind Gust 23.26 mph SW (25-15:36) - -
Wind - - SW
Pressure 30.14 in (16-7:22) 29.41 in (30-6:06) 29.84 in
Precipitation Total: 5.886 in
Max Rate: 3.267 in/hr (30-18:39)
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 May 2009  HighLowAverage
Temperature 85.6 °F (20-16:23) 35.2 °F (11-6:29) 58.6 °F
Dew Point 69.8 °F (28-11:54) 32.0 °F (31-8:06) 43.7 °F
Humidity 100 % (29-4:22) 17 % (20-18:27) 56.4 %
Wind Speed 18.11 mph West (9-16:22) - -
Wind Gust 32.88 mph West (9-16:18) - -
Wind - - SW
Pressure 30.38 in (18-10:08) 29.41 in (9-13:36) 29.97 in
Precipitation Total: 3.280 in
Max Rate: 2.598 in/hr (28-18:30)
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 April 2009  HighLowAverage
Temperature 86.0 °F (27-11:36) 26.1 °F (7-9:37) 47.8 °F
Dew Point 60.8 °F (25-22:51) 32.0 °F (30-8:15) 40.3 °F
Humidity 97 % (2-7:26) 19 % (24-15:56) 65.7 %
Wind Speed 21.47 mph SW (4-0:26) - -
Wind Gust 31.54 mph SW (4-5:01) - -
Wind - - South
Pressure 30.62 in (29-8:52) 28.96 in (3-18:51) 29.92 in
Precipitation Total: 2.401 in
Max Rate: 0.551 in/hr (25-23:23)
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 March 2009  HighLowAverage
Temperature 63.5 °F (29-13:03) 8.8 °F (3-7:40) 36.1 °F
Dew Point 53.6 °F (29-11:42) 32.0 °F (31-9:43) 37.2 °F
Humidity 100 % (8-5:37) 35 % (17-15:23) 75.4 %
Wind Speed 21.02 mph West (11-13:53) - -
Wind Gust 37.58 mph West (11-13:47) - -
Wind - - South
Pressure 30.59 in (12-10:07) 29.23 in (29-13:51) 30.13 in
Precipitation Total: 2.736 in
Max Rate: 1.023 in/hr (7-20:42)
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 February 2009  HighLowAverage
Temperature 56.5 °F (27-11:46) 1.9 °F (5-7:50) 28.6 °F
Dew Point 51.8 °F (11-17:17) 32.0 °F (27-16:03) 38.6 °F
Humidity 100 % (11-17:17) 47 % (7-15:46) 77.9 %
Wind Speed 21.02 mph West (12-10:24) - -
Wind Gust 34.22 mph West (19-13:31) - -
Wind - - SW
Pressure 30.47 in (24-8:21) 29.08 in (12-3:35) 29.99 in
Precipitation Total: 1.370 in
Max Rate: 0.433 in/hr (11-22:57)
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 January 2009  HighLowAverage
Temperature 45.1 °F (23-15:54) -2.1 °F (17-7:23) 19.3 °F
Dew Point 35.6 °F (7-12:33) 32.0 °F (7-15:40) 33.9 °F
Humidity 100 % (7-6:58) 88 % (7-15:40) 98.8 %
Wind Speed 16.10 mph West (23-18:25) - -
Wind Gust 29.75 mph West (2-22:05) - -
Wind - - SW
Pressure 30.50 in (27-8:06) 28.99 in (7-15:20) 29.95 in
Precipitation Total: 0.368 in
Max Rate: 0.118 in/hr (7-12:06)
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