Weather History for Chatham, MA

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Month of October, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 82 °F 64 °F 45 °F
Mean Temperature 72 °F 57 °F 42 °F
Min Temperature 64 °F 51 °F 32 °F
Degree Days  
Heating Degree Days (base 65) 24 8 0 250
Cooling Degree Days (base 65) 7 0 0 15
Growing Degree Days (base 50) 22 9 0 266
Dew Point  
Dew Point 67 °F 48 °F 25 °F
Precipitation  
Precipitation 1.27 in 0.20 in 0.00 in 6.18 in
Snowdepth - - - -
Wind  
Wind 29 mph 7 mph 0 mph
Gust Wind 48 mph 22 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.46 in 29.95 in 29.37 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Oct. 31, 2011 Rise Set
Actual Time 7:10 AM EDT 5:36 PM EDT
Civil Twilight 6:41 AM EDT 6:04 PM EDT
Nautical Twilight 6:08 AM EDT 6:37 PM EDT
Astronomical Twilight 5:36 AM EDT 7:09 PM EDT
Moon 12:17 PM EDT (10/31) 10:06 PM EDT (10/31)
Length of Visible Light 11h 23m
Length of Day
10h 25m
Waxing Crescent, 29% of the Moon is Illuminated
Oct 31
Waxing Crescent
Nov 2
First Quarter
Nov 10
Full
Nov 18
Last Quarter
Nov 25
New

Weather History Calendar

Precipitation Actual month total 6.18 Average Month Total: 3.15
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
73 | 60 0.10
Average:
63 | 49 0.09
Rain
Actual:
73 | 57 0.17
Average:
62 | 48 0.09
Rain
Actual:
70 | 55 0.06
Average:
62 | 48 0.09
Rain
Actual:
70 | 57 0.12
Average:
62 | 47 0.09
Rain
Actual:
64 | 53 0.07
Average:
61 | 47 0.09
Clear
Actual:
59 | 42 0.00
Average:
61 | 47 0.09
Clear
Actual:
59 | 43 0.00
Average:
61 | 47 0.09
Clear
Actual:
73 | 55 0.00
Average:
61 | 46 0.10
Clear
Actual:
82 | 55 0.00
Average:
60 | 46 0.10
Clear
Actual:
80 | 64 0.00
Average:
60 | 46 0.10
Clear
Actual:
64 | 57 0.00
Average:
60 | 46 0.10
Rain
Actual:
62 | 57 0.15
Average:
59 | 45 0.10
Thunderstorm
Actual:
69 | 59 0.99
Average:
59 | 45 0.10
Rain
Actual:
68 | 63 0.32
Average:
58 | 44 0.11
Scattered Clouds
Actual:
68 | 60 0.01
Average:
58 | 44 0.11
Rain
Actual:
66 | 57 0.00
Average:
58 | 44 0.11
Rain
Actual:
66 | 57 0.05
Average:
57 | 43 0.11
Scattered Clouds
Actual:
70 | 59 0.00
Average:
57 | 43 0.11
Rain
Actual:
69 | 57 1.27
Average:
57 | 43 0.11
Rain
Actual:
70 | 60 0.47
Average:
56 | 42 0.11
Partly Cloudy
Actual:
62 | 50 0.00
Average:
56 | 42 0.11
Partly Cloudy
Actual:
63 | 48 0.00
Average:
56 | 42 0.11
Partly Cloudy
Actual:
57 | 44 0.00
Average:
55 | 42 0.11
Clear
Actual:
59 | 39 0.00
Average:
55 | 42 0.11
Rain
Actual:
59 | 48 0.03
Average:
55 | 42 0.11
Mostly Cloudy
Actual:
52 | 46 0.00
Average:
55 | 42 0.10
Rain
Actual:
53 | 41 0.70
Average:
55 | 42 0.10
Rain
Actual:
46 | 37 0.02
Average:
54 | 42 0.10
Rain
Actual:
48 | 37 1.11
Average:
54 | 42 0.10
Rain
Actual:
45 | 36 0.54
Average:
54 | 42 0.10
Rain
Actual:
52 | 32 0.00
Average:
54 | 41 0.10
 

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

2011 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Oct high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 73 66 60 66 63 60 100 91 76 29.78 29.67 29.60 10 6 0 10 5 16 0.10 Fog , Rain , Thunderstorm
2 73 66 57 63 60 53 94 87 69 29.94 29.81 29.77 10 8 2 10 4 20 0.17 Rain
3 70 62 55 57 52 44 90 72 42 30.09 30.05 29.94 10 10 8 8 3 - 0.06 Rain
4 70 63 57 59 55 50 94 82 54 30.01 29.91 29.81 10 9 4 14 5 24 0.12 Rain
5 64 58 53 55 49 31 94 72 43 30.20 29.94 29.82 10 9 2 12 8 25 0.07 Rain
6 59 50 42 39 34 29 86 55 36 30.32 30.25 30.21 10 10 10 12 4 28 0.00  
7 59 50 43 43 37 32 82 60 37 30.46 30.43 30.34 10 10 10 9 4 - 0.00  
8 73 64 55 59 52 46 89 68 43 30.43 30.39 30.33 10 10 10 8 5 - 0.00  
9 82 68 55 61 53 49 90 58 33 30.33 30.28 30.21 10 10 10 12 5 18 0.00  
10 80 72 64 62 56 47 81 62 42 30.20 30.14 30.09 10 10 10 12 5 20 0.00  
11 64 60 57 50 49 47 74 64 54 30.25 30.21 30.15 10 10 10 10 8 17 0.00  
12 62 60 57 57 52 45 94 77 63 30.24 30.17 30.06 10 8 2 12 8 18 0.15 Rain
13 69 64 59 67 62 57 100 94 93 30.05 29.84 29.77 7 2 0 15 9 23 0.99 Fog , Rain , Thunderstorm
14 68 66 63 66 63 60 100 94 83 29.81 29.59 29.39 10 4 0 15 5 30 0.32 Fog , Rain
15 68 64 60 61 51 45 94 65 48 29.73 29.60 29.42 10 10 10 22 14 38 0.01  
16 66 62 57 53 41 34 67 46 34 29.83 29.78 29.75 10 10 10 16 11 30 0.00 Rain
17 66 62 57 58 50 38 87 64 36 29.79 29.71 29.63 10 10 9 13 10 24 0.05 Rain
18 70 64 59 55 51 41 87 68 37 29.97 29.88 29.78 10 10 10 9 6 16 0.00  
19 69 63 57 66 60 52 100 90 75 29.97 29.79 29.60 10 5 1 20 8 31 1.27 Rain
20 70 64 60 67 62 48 100 85 62 29.73 29.58 29.53 10 6 1 20 10 36 0.47 Rain
21 62 58 50 48 46 43 77 64 54 29.98 29.87 29.75 10 10 10 17 11 28 0.00  
22 63 56 48 46 44 42 80 68 50 30.08 30.02 29.98 10 10 10 12 3 17 0.00  
23 57 50 44 48 44 41 93 78 57 30.16 30.11 30.07 10 10 2 6 1 - 0.00  
24 59 48 39 46 42 38 93 76 56 30.17 30.10 29.94 10 10 10 6 2 - 0.00  
25 59 54 48 51 41 32 100 66 47 29.96 29.90 29.84 10 10 7 17 5 28 0.03 Rain
26 52 49 46 46 39 32 80 65 48 29.99 29.89 29.78 10 10 10 9 4 21 0.00  
27 53 47 41 52 45 39 100 93 77 29.78 29.68 29.60 10 5 2 22 8 30 0.70 Rain
28 46 42 37 38 31 25 93 69 46 30.26 30.09 29.83 10 10 10 10 7 23 0.02 Rain
29 48 42 37 45 40 31 100 86 52 30.27 29.86 29.53 10 5 2 29 13 48 1.11 Rain
30 45 42 36 45 38 28 100 85 55 30.29 29.66 29.37 10 5 2 23 17 48 0.54 Rain
31 52 42 32 37 32 29 93 70 44 30.43 30.40 30.30 10 10 10 7 2 - 0.00 Rain