Weather History for Hyannis, MA

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Month of September, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 81 °F 71 °F 61 °F
Mean Temperature 74 °F 62 °F 54 °F
Min Temperature 71 °F 54 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 12 4 0 118
Cooling Degree Days (base 65) 10 1 0 36
Growing Degree Days (base 50) 24 12 4 370
Dew Point  
Dew Point 74 °F 58 °F 38 °F
Precipitation  
Precipitation 2.22 in 0.21 in 0.00 in 6.43 in
Snowdepth - - - -
Wind  
Wind 22 mph 7 mph 0 mph
Gust Wind 34 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.38 in 30.02 in 29.69 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 06, 2012 Rise Set
Actual Time 6:12 AM EDT 7:05 PM EDT
Civil Twilight 5:44 AM EDT 7:33 PM EDT
Nautical Twilight 5:10 AM EDT 8:06 PM EDT
Astronomical Twilight 4:35 AM EDT 8:41 PM EDT
Moon 10:07 PM EDT (9/6) 12:14 PM EDT (9/6)
Length of Visible Light 13h 48m
Length of Day
12h 52m
Waning Gibbous, 67% of the Moon is Illuminated
Sep 6
Waning Gibbous
Sep 8
Last Quarter
Sep 15
New
Sep 22
First Quarter
Sep 29
Full

Weather History Calendar

Precipitation Actual month total 6.43 Average Month Total: 3.01
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
79 | 55 0.00
Average:
76 | 58 0.11
Partly Cloudy
Actual:
73 | 57 0.00
Average:
75 | 57 0.14
Clear
Actual:
73 | 54 0.00
Average:
75 | 61 0.16
Rain
Actual:
75 | 63 0.03
Average:
74 | 59 0.20
Thunderstorm
Actual:
77 | 66 2.22
Average:
72 | 56 0.09
Scattered Clouds
Actual:
75 | 60 0.00
Average:
74 | 56 0.02
Partly Cloudy
Actual:
81 | 66 0.00
Average:
73 | 58 0.08
Partly Cloudy
Actual:
78 | 71 0.00
Average:
72 | 55 0.02
Rain
Actual:
73 | 55 0.14
Average:
71 | 54 0.16
Scattered Clouds
Actual:
68 | 57 0.00
Average:
73 | 57 0.03
Clear
Actual:
69 | 50 0.00
Average:
74 | 58 0.05
Clear
Actual:
73 | 46 0.00
Average:
73 | 55 0.00
Clear
Actual:
75 | 53 0.00
Average:
72 | 53 0.02
Scattered Clouds
Actual:
73 | 57 0.00
Average:
72 | 54 0.02
Rain
Actual:
73 | 61 0.00
Average:
71 | 55 0.23
Clear
Actual:
69 | 46 0.00
Average:
70 | 53 0.13
Clear
Actual:
71 | 42 0.00
Average:
70 | 53 0.13
Scattered Clouds
Actual:
75 | 51 0.00
Average:
70 | 55 0.08
Rain
Actual:
73 | 55 1.00
Average:
70 | 55 0.12
Clear
Actual:
66 | 48 0.00
Average:
70 | 52 0.20
Rain
Actual:
61 | 46 0.04
Average:
69 | 52 0.13
Rain
Actual:
68 | 59 0.00
Average:
68 | 53 0.12
Partly Cloudy
Actual:
70 | 52 0.00
Average:
68 | 52 0.16
Clear
Actual:
66 | 45 0.00
Average:
67 | 51 0.04
Clear
Actual:
70 | 39 0.00
Average:
66 | 49 0.06
Rain
Actual:
73 | 64 0.00
Average:
68 | 48 0.08
Partly Cloudy
Actual:
68 | 46 0.00
Average:
67 | 50 0.15
Thunderstorm
Actual:
64 | 46 0.68
Average:
67 | 50 0.11
Thunderstorm
Actual:
66 | 55 1.06
Average:
67 | 50 0.08
Rain
Actual:
61 | 55 1.26
Average:
67 | 49 0.09
 

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
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 79 68 55 67 61 52 93 71 49 30.11 29.98 29.83 10 10 10 14 8 20 0.00  
2 73 65 57 61 58 55 100 80 57 30.13 30.10 30.06 10 10 10 7 2 - 0.00  
3 73 62 54 62 56 52 100 78 53 30.22 30.18 30.13 10 10 2 12 3 - 0.00  
4 75 68 63 72 67 60 100 90 78 30.16 30.04 29.92 10 10 2 14 6 20 0.03 Rain
5 77 72 66 74 72 64 100 96 88 29.91 29.80 29.75 10 8 2 21 12 30 2.22 Rain , Thunderstorm
6 75 66 60 66 63 60 100 86 71 29.90 29.88 29.82 10 10 9 7 4 - 0.00  
7 81 73 66 72 70 64 100 90 71 29.94 29.91 29.87 10 10 10 13 7 18 0.00  
8 78 74 71 74 72 70 100 91 78 29.94 29.81 29.69 10 10 10 16 11 30 0.00  
9 73 65 55 73 61 55 100 90 73 29.83 29.78 29.70 10 9 2 9 5 20 0.14 Rain
10 68 62 57 61 53 45 100 75 54 30.00 29.89 29.82 10 10 10 17 7 25 0.00  
11 69 58 50 51 48 44 93 69 45 30.27 30.17 30.02 10 10 10 13 7 20 0.00  
12 73 60 46 58 52 45 96 72 42 30.37 30.33 30.28 10 10 10 12 3 - 0.00  
13 75 63 53 61 58 52 97 76 61 30.38 30.34 30.29 10 10 10 13 5 22 0.00  
14 73 65 57 67 64 57 100 88 73 30.29 30.20 30.10 10 10 10 16 7 23 0.00  
15 73 67 61 66 60 49 97 78 54 30.10 30.02 29.96 10 10 10 13 7 20 0.00 Rain
16 69 58 46 53 50 45 96 74 51 30.07 30.03 29.99 10 10 10 8 3 - 0.00  
17 71 56 42 55 48 41 97 73 42 30.10 30.07 30.04 10 10 9 14 2 - 0.00  
18 75 62 51 67 60 50 96 77 65 30.08 29.97 29.82 10 10 10 21 8 34 0.00  
19 73 64 55 69 60 48 100 83 52 30.15 29.90 29.76 10 8 2 18 12 28 1.00 Rain
20 66 58 48 53 49 46 93 72 52 30.21 30.17 30.14 10 10 10 14 8 22 0.00  
21 61 54 46 60 55 45 100 91 75 30.14 30.08 29.98 10 9 2 13 5 20 0.04 Rain
22 68 64 59 64 60 59 100 94 78 29.96 29.93 29.87 10 6 1 12 8 18 0.00 Rain
23 70 60 52 67 56 45 94 77 49 30.07 29.94 29.82 10 10 10 14 9 20 0.00  
24 66 55 45 49 45 41 93 69 43 30.13 30.09 30.06 10 10 10 10 6 - 0.00  
25 70 54 39 55 47 38 97 70 42 30.21 30.17 30.14 10 10 9 21 7 30 0.00  
26 73 68 64 65 61 54 94 79 68 30.17 30.09 30.03 10 10 9 22 12 29 0.00 Rain
27 68 57 46 65 56 46 97 83 56 30.23 30.12 30.00 10 10 9 16 8 24 0.00  
28 64 54 46 63 54 45 100 87 65 30.23 30.09 29.93 10 9 2 12 4 21 0.68 Rain , Thunderstorm
29 66 60 55 65 60 55 100 99 93 29.92 29.88 29.85 10 6 1 14 3 20 1.06 Rain , Thunderstorm
30 61 58 55 58 56 53 100 95 81 29.88 29.79 29.73 10 7 1 15 7 21 1.26 Rain