Weather History for Rochester, NY

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Month of December, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 70 °F 42 °F 28 °F
Mean Temperature 58 °F 36 °F 23 °F
Min Temperature 47 °F 31 °F 16 °F
Degree Days  
Heating Degree Days (base 65) 42 29 7 887
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 8 0 0 8
Dew Point  
Dew Point 56 °F 29 °F 14 °F
Precipitation  
Precipitation 0.67 in 0.15 in 0.00 in 3.57 in
Snowdepth 11.0 in 1.4 in 0.0 in -
Wind  
Wind 32 mph 9 mph 0 mph
Gust Wind 43 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.46 in 29.98 in 29.19 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 15, 2012 Rise Set
Actual Time 7:35 AM EST 4:36 PM EST
Civil Twilight 7:03 AM EST 5:08 PM EST
Nautical Twilight 6:27 AM EST 5:44 PM EST
Astronomical Twilight 5:52 AM EST 6:19 PM EST
Moon 9:24 AM EST (12/15) 7:41 PM EST (12/15)
Length of Visible Light 10h 05m
Length of Day
9h 00m
Waxing Crescent, 8% of the Moon is Illuminated
Dec 15
Waxing Crescent
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

Weather History Calendar

Precipitation Actual month total 3.57 Normal Month Total: 2.63
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Overcast
Actual:
49 | 27 0.00
Average:
42 | 28 0.09
Rain
Actual:
53 | 47 0.18
Average:
41 | 28 0.09
Partly Cloudy
Actual:
53 | 43 0.00
Average:
41 | 28 0.10
Rain
Actual:
70 | 46 0.32
Average:
40 | 27 0.09
Snow
Actual:
48 | 30 T
Average:
40 | 27 0.09
Partly Cloudy
Actual:
40 | 24 0.00
Average:
40 | 27 0.09
Overcast
Actual:
45 | 35 0.00
Average:
39 | 26 0.09
Rain
Actual:
46 | 36 0.08
Average:
39 | 26 0.09
Rain
Actual:
46 | 31 0.16
Average:
38 | 26 0.09
Rain
Actual:
53 | 35 0.11
Average:
38 | 25 0.10
Snow
Actual:
35 | 26 T
Average:
38 | 25 0.09
Snow
Actual:
41 | 30 T
Average:
37 | 25 0.09
Partly Cloudy
Actual:
44 | 27 0.00
Average:
37 | 24 0.08
Partly Cloudy
Actual:
45 | 30 0.00
Average:
37 | 24 0.08
Rain
Actual:
40 | 30 T
Average:
36 | 24 0.09
Rain
Actual:
55 | 39 0.03
Average:
36 | 23 0.08
Rain
Actual:
49 | 44 0.21
Average:
36 | 23 0.08
Rain
Actual:
45 | 39 0.40
Average:
36 | 23 0.07
Partly Cloudy
Actual:
43 | 31 0.00
Average:
35 | 22 0.08
Rain
Actual:
42 | 27 0.16
Average:
35 | 22 0.08
Snow
Actual:
42 | 31 0.46
Average:
35 | 22 0.08
Snow
Actual:
32 | 27 0.07
Average:
35 | 22 0.08
Snow
Actual:
35 | 29 T
Average:
34 | 21 0.08
Snow
Actual:
32 | 29 0.06
Average:
34 | 21 0.08
Snow
Actual:
31 | 29 0.02
Average:
34 | 21 0.09
Snow
Actual:
30 | 22 0.67
Average:
34 | 21 0.08
Snow
Actual:
29 | 24 0.25
Average:
34 | 20 0.08
Snow
Actual:
28 | 17 T
Average:
33 | 20 0.08
Snow
Actual:
29 | 16 0.31
Average:
33 | 20 0.08
Snow
Actual:
28 | 22 0.08
Average:
33 | 20 0.08
Snow
Actual:
35 | 26 T
Average:
33 | 20 0.08
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 49 38 27 36 30 23 100 81 61 30.40 30.32 30.20 10 8 4 13 5 18 0.00  
2 53 50 47 52 44 36 96 79 61 30.19 30.02 29.91 10 8 2 20 12 26 0.18 Rain
3 53 48 43 45 41 40 92 82 71 30.25 30.17 30.09 10 10 8 10 4 - 0.00  
4 70 58 46 56 51 41 96 74 51 30.08 29.96 29.88 10 9 2 22 11 29 0.32 Rain
5 48 39 30 41 27 17 83 69 54 30.39 30.19 29.97 10 9 3 24 12 31 T Snow
6 40 32 24 23 20 17 81 63 44 30.42 30.27 30.06 10 10 10 13 5 16 0.00  
7 45 40 35 39 32 19 89 69 48 30.05 30.00 29.95 10 10 10 12 5 17 0.00  
8 46 41 36 45 40 29 100 91 82 30.17 29.88 29.75 10 6 1 17 6 23 0.08 Rain
9 46 39 31 40 30 25 92 81 70 30.30 30.15 29.79 10 10 5 18 8 23 0.16 Rain
10 53 44 35 48 39 30 93 85 76 29.75 29.63 29.52 10 10 10 24 12 31 0.11 Rain
11 35 31 26 28 25 23 92 84 75 30.20 30.00 29.79 10 8 1 14 5 18 T Snow
12 41 36 30 28 28 25 92 76 59 30.44 30.33 30.20 10 10 7 21 7 28 T Snow
13 44 36 27 27 22 21 85 63 40 30.46 30.38 30.21 10 10 10 16 7 24 0.00  
14 45 38 30 31 26 19 85 69 52 30.28 30.21 30.15 10 10 7 16 7 21 0.00  
15 40 35 30 32 30 30 92 81 70 30.33 30.22 30.00 10 9 4 14 7 18 T Rain
16 55 47 39 43 37 31 86 73 59 29.98 29.82 29.72 10 10 7 21 10 29 0.03 Rain
17 49 47 44 45 43 42 100 90 80 29.75 29.69 29.55 10 9 4 12 5 14 0.21 Rain
18 45 42 39 43 39 27 100 80 59 29.73 29.55 29.47 10 8 2 18 8 25 0.40 Rain
19 43 37 31 34 29 25 92 73 53 30.20 29.98 29.72 10 10 6 17 8 22 0.00  
20 42 35 27 35 26 22 85 70 54 30.21 29.93 29.45 10 10 7 23 11 31 0.16 Rain
21 42 37 31 37 33 27 100 91 82 29.47 29.27 29.19 10 5 1 23 10 32 0.46 Rain , Snow
22 32 30 27 27 24 19 92 76 59 29.91 29.62 29.33 10 4 0 32 18 43 0.07 Fog , Snow
23 35 32 29 27 24 18 85 74 63 30.02 29.88 29.79 10 10 3 23 12 29 T Snow
24 32 31 29 27 22 19 75 67 59 30.08 29.97 29.88 10 7 0 15 8 18 0.06 Fog , Snow
25 31 30 29 28 25 21 92 82 72 30.35 30.11 29.90 10 7 1 17 6 20 0.02 Snow
26 30 26 22 27 21 14 92 80 68 30.36 30.06 29.78 10 5 0 26 12 33 0.67 Fog , Snow
27 29 27 24 27 22 19 92 87 81 30.05 29.86 29.72 10 4 0 28 14 35 0.25 Snow
28 28 23 17 24 20 16 91 83 75 30.15 30.10 30.04 10 9 2 16 7 21 T Snow
29 29 23 16 27 23 14 96 90 84 30.03 29.81 29.66 10 3 0 17 7 21 0.31 Fog , Snow
30 28 25 22 22 18 15 88 73 58 30.25 30.04 29.81 10 6 2 23 12 37 0.08 Snow
31 35 31 26 27 23 18 81 69 56 30.18 29.98 29.84 10 10 9 24 15 32 T Snow