Weather History for Hyannis, MA

Change the Weather History Date:

Month of September, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 79 °F 73 °F 63 °F
Mean Temperature 74 °F 65 °F 54 °F
Min Temperature 69 °F 59 °F 44 °F
Degree Days  
Heating Degree Days (base 65) 12 2 0 64
Cooling Degree Days (base 65) 9 3 0 78
Growing Degree Days (base 50) 24 15 4 458
Dew Point  
Dew Point 72 °F 60 °F 39 °F
Precipitation  
Precipitation 1.27 in 0.13 in 0.00 in 3.89 in
Snowdepth - - - -
Wind  
Wind 25 mph 7 mph 0 mph
Gust Wind 38 mph 21 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.46 in 30.04 in 29.63 in

Monthly Weather History Graph

Monthly Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Sep. 18, 2011 Rise Set
Actual Time 6:24 AM EDT 6:45 PM EDT
Civil Twilight 5:56 AM EDT 7:13 PM EDT
Nautical Twilight 5:23 AM EDT 7:46 PM EDT
Astronomical Twilight 4:49 AM EDT 8:19 PM EDT
Moon 9:52 PM EDT (9/18) 12:24 PM EDT (9/18)
Length of Visible Light 13h 17m
Length of Day
12h 21m
Waning Gibbous, 68% of the Moon is Illuminated
Sep 18
Waning Gibbous
Sep 20
Last Quarter
Sep 27
New
Oct 3
First Quarter
Oct 11
Full

Weather History Calendar

Precipitation Actual month total 3.89 Average Month Total: 3.01
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
78 | 59 0.00
Average:
76 | 58 0.11
Partly Cloudy
Actual:
70 | 53 0.00
Average:
75 | 57 0.14
Scattered Clouds
Actual:
75 | 51 0.00
Average:
75 | 61 0.16
Partly Cloudy
Actual:
79 | 69 0.00
Average:
74 | 59 0.20
Partly Cloudy
Actual:
79 | 69 0.00
Average:
72 | 56 0.09
Rain
Actual:
73 | 59 0.67
Average:
74 | 56 0.02
Rain
Actual:
66 | 60 0.05
Average:
73 | 58 0.08
Thunderstorm
Actual:
75 | 60 1.27
Average:
72 | 55 0.02
Rain
Actual:
73 | 60 0.00
Average:
71 | 54 0.16
Clear
Actual:
73 | 54 0.00
Average:
73 | 57 0.03
Scattered Clouds
Actual:
68 | 48 0.00
Average:
74 | 58 0.05
Partly Cloudy
Actual:
77 | 62 0.00
Average:
73 | 55 0.00
Clear
Actual:
78 | 64 0.00
Average:
72 | 53 0.02
Scattered Clouds
Actual:
78 | 69 0.00
Average:
72 | 54 0.02
Rain
Actual:
79 | 57 0.00
Average:
71 | 55 0.23
Clear
Actual:
63 | 45 0.01
Average:
70 | 53 0.13
Clear
Actual:
64 | 46 0.00
Average:
70 | 53 0.13
Partly Cloudy
Actual:
66 | 51 0.00
Average:
70 | 55 0.08
Scattered Clouds
Actual:
66 | 45 0.00
Average:
70 | 55 0.12
Rain
Actual:
69 | 44 0.00
Average:
70 | 52 0.20
Partly Cloudy
Actual:
73 | 60 0.00
Average:
69 | 52 0.13
Rain
Actual:
72 | 66 0.00
Average:
68 | 53 0.12
Rain
Actual:
71 | 66 0.15
Average:
68 | 52 0.16
Rain
Actual:
75 | 68 1.02
Average:
67 | 51 0.04
Fog
Actual:
77 | 66 0.00
Average:
66 | 49 0.06
Fog
Actual:
78 | 62 0.00
Average:
68 | 48 0.08
Fog
Actual:
77 | 59 0.00
Average:
67 | 50 0.15
Partly Cloudy
Actual:
72 | 60 0.00
Average:
67 | 50 0.11
Thunderstorm
Actual:
73 | 64 0.72
Average:
67 | 50 0.08
Scattered Clouds
Actual:
73 | 60 0.00
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

2011 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 78 68 59 60 56 53 93 71 44 30.22 30.18 30.14 10 10 2 12 3 18 0.00  
2 70 62 53 61 58 51 94 83 61 30.14 30.11 30.04 10 10 9 15 7 18 0.00  
3 75 63 51 63 58 48 94 75 53 30.04 29.96 29.91 10 10 10 22 7 29 0.00  
4 79 74 69 66 61 57 83 69 52 29.95 29.92 29.89 10 10 10 18 13 28 0.00  
5 79 74 69 72 70 66 94 87 77 29.90 29.88 29.85 10 10 2 16 13 28 0.00  
6 73 66 59 72 62 57 100 94 88 30.21 29.99 29.82 10 6 2 21 12 28 0.67 Rain
7 66 63 60 66 62 57 100 94 82 30.21 30.15 30.09 10 4 0 9 6 - 0.05 Fog , Rain
8 75 64 60 65 62 60 100 95 83 30.12 30.04 29.91 10 5 0 16 8 23 1.27 Fog , Rain , Thunderstorm
9 73 66 60 64 60 54 100 90 51 29.91 29.80 29.74 10 5 1 20 12 28 0.00 Rain
10 73 63 54 62 55 50 97 75 53 30.08 29.94 29.83 10 10 10 13 4 - 0.00  
11 68 57 48 58 51 46 94 74 49 30.17 30.11 30.04 10 10 10 9 3 - 0.00  
12 77 68 62 66 64 57 94 84 67 30.03 29.99 29.94 10 10 8 15 6 20 0.00  
13 78 71 64 67 65 62 97 82 64 29.97 29.93 29.90 10 10 7 20 8 24 0.00  
14 78 73 69 70 67 64 94 85 74 29.98 29.94 29.91 10 9 5 16 11 29 0.00  
15 79 68 57 70 65 45 100 86 63 29.98 29.89 29.80 10 7 2 25 9 38 0.00 Rain
16 63 54 45 47 42 39 90 63 46 30.33 30.17 29.93 10 10 10 22 13 34 0.01  
17 64 54 46 48 43 40 89 63 46 30.46 30.42 30.34 10 10 10 12 5 17 0.00  
18 66 58 51 50 47 46 89 71 52 30.46 30.41 30.33 10 10 10 15 4 22 0.00  
19 66 56 45 54 51 44 97 76 56 30.32 30.24 30.17 10 10 10 14 7 22 0.00  
20 69 56 44 63 56 42 94 83 68 30.17 30.13 30.09 10 10 6 16 6 21 0.00 Rain
21 73 66 60 64 62 59 97 83 65 30.27 30.24 30.17 10 9 5 9 3 - 0.00  
22 72 68 66 68 66 63 100 92 87 30.22 30.15 30.10 10 8 0 9 6 - 0.00 Fog , Rain
23 71 68 66 70 68 66 100 96 87 30.18 30.12 30.05 10 5 1 9 6 - 0.15 Rain
24 75 72 68 72 69 66 100 94 79 30.08 30.03 29.99 10 6 0 13 9 18 1.02 Fog , Rain
25 77 70 66 70 67 66 100 91 76 30.09 30.05 30.01 10 8 0 10 3 - 0.00 Fog
26 78 70 62 69 64 60 100 90 60 30.01 29.98 29.95 10 6 0 6 1 - 0.00 Fog
27 77 67 59 67 61 57 100 89 57 30.06 29.99 29.95 10 6 0 7 1 - 0.00 Fog
28 72 65 60 62 60 57 96 82 70 30.10 30.05 29.96 10 10 8 15 5 23 0.00  
29 73 68 64 70 66 62 100 93 83 29.94 29.75 29.63 10 7 1 18 10 33 0.72 Rain , Thunderstorm
30 73 66 60 64 61 54 94 80 59 29.78 29.72 29.67 10 9 7 13 8 18 0.00