Weather History for Block Island, RI

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 73 °F 67 °F 60 °F
Mean Temperature 71 °F 61 °F 54 °F
Min Temperature 71 °F 55 °F 48 °F
Degree Days  
Heating Degree Days (base 65) 11 5 0 69
Cooling Degree Days (base 65) 6 1 0 8
Growing Degree Days (base 50) 21 11 4 160
Dew Point  
Dew Point 64 °F 50 °F 34 °F
Precipitation  
Precipitation 0.37 in 0.02 in 0.00 in 0.37 in
Snowdepth - - - -
Wind  
Wind 22 mph 8 mph 0 mph
Gust Wind 28 mph 18 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.36 in 30.06 in 29.66 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 20, 2013 Rise Set
Actual Time 6:31 AM EDT 6:46 PM EDT
Civil Twilight 6:04 AM EDT 7:14 PM EDT
Nautical Twilight 5:32 AM EDT 7:46 PM EDT
Astronomical Twilight 4:59 AM EDT 8:19 PM EDT
Moon 7:17 PM EDT (9/20) 7:44 AM EDT (9/20)
Length of Visible Light 13h 09m
Length of Day
12h 14m
Full, 98% of the Moon is Illuminated
Sep 20
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full

Weather History Calendar

 
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Clear
Actual:
- | - -
Average:
- | - -
Clear
Actual:
- | - -
Average:
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Clear
Actual:
- | - -
Average:
- | - -
Clear
Actual:
- | - -
Average:
- | - -
Mostly Cloudy
Actual:
71 | 71 0.00
Average:
72 | 60 0.02
Clear
Actual:
- | - -
Average:
- | - -
Clear
Actual:
- | - -
Average:
- | - -
Clear
Actual:
- | - -
Average:
- | - -
Clear
Actual:
- | - -
Average:
- | - -
Clear
Actual:
- | - -
Average:
- | - -
Clear
Actual:
- | - -
Average:
- | - -
Clear
Actual:
- | - -
Average:
- | - -
Clear
Actual:
- | - -
Average:
- | - -
Clear
Actual:
- | - -
Average:
- | - -
Clear
Actual:
- | - -
Average:
- | - -
Clear
Actual:
- | - -
Average:
- | - -
Clear
Actual:
60 | 48 0.00
Average:
70 | 57 0.10
Clear
Actual:
66 | 48 0.00
Average:
69 | 57 0.11
Clear
Actual:
71 | 59 0.00
Average:
69 | 56 0.18
Clear
Actual:
73 | 60 0.00
Average:
67 | 56 0.09
Partly Cloudy
Actual:
71 | 59 0.00
Average:
67 | 56 0.12
Thunderstorm
Actual:
71 | 55 0.37
Average:
68 | 55 0.18
Clear
Actual:
64 | 50 0.00
Average:
67 | 55 0.09
Clear
Actual:
64 | 48 0.00
Average:
65 | 54 0.10
Partly Cloudy
Actual:
68 | 51 0.00
Average:
66 | 54 0.08
Partly Cloudy
Actual:
62 | 55 0.00
Average:
67 | 54 0.21
Partly Cloudy
Actual:
64 | 57 0.00
Average:
67 | 55 0.08
Clear
Actual:
69 | 55 0.00
Average:
66 | 54 0.06
Partly Cloudy
Actual:
62 | 51 0.00
Average:
65 | 54 0.10
Partly Cloudy
Actual:
66 | 55 0.00
Average:
65 | 52 0.06
 

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

2013 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 - - - - - - - - - - - - - - - - - - -  
2 - - - - - - - - - - - - - - - - - - -  
3 - - - - - - - - - - - - - - - - - - -  
4 - - - - - - - - - - - - - - - - - - -  
5 71 71 71 61 60 59 69 67 64 29.96 29.96 29.95 10 10 10 7 6 - 0.00  
6 - - - - - - - - - - - - - - - - - - -  
7 - - - - - - - - - - - - - - - - - - -  
8 - - - - - - - - - - - - - - - - - - -  
9 - - - - - - - - - - - - - - - - - - -  
10 - - - - - - - - - - - - - - - - - - -  
11 - - - - - - - - - - - - - - - - - - -  
12 - - - - - - - - - - - - - - - - - - -  
13 - - - - - - - - - - - - - - - - - - -  
14 - - - - - - - - - - - - - - - - - - -  
15 - - - - - - - - - - - - - - - - - - -  
16 - - - - - - - - - - - - - - - - - - -  
17 60 54 48 39 36 34 71 50 39 30.36 30.34 30.34 10 10 10 13 8 21 0.00  
18 66 57 48 52 45 37 77 61 43 30.34 30.26 30.18 10 10 10 14 6 17 0.00  
19 71 65 59 57 55 52 88 71 53 30.18 30.13 30.08 10 10 9 17 10 23 0.00  
20 73 66 60 61 58 52 94 79 47 30.11 30.07 30.04 10 10 5 12 9 - 0.00  
21 71 65 59 64 61 54 94 82 73 30.05 29.93 29.76 10 10 10 17 9 22 0.00  
22 71 63 55 64 56 43 94 73 55 29.85 29.73 29.66 10 9 4 22 12 28 0.37 Thunderstorm
23 64 57 50 45 43 39 72 61 49 30.00 29.93 29.85 10 10 10 16 10 22 0.00  
24 64 56 48 50 43 37 77 61 52 30.01 29.93 29.84 10 10 10 17 10 25 0.00  
25 68 60 51 52 48 43 77 65 46 29.97 29.92 29.89 10 10 8 10 6 - 0.00  
26 62 58 55 50 47 45 77 65 52 30.11 30.03 29.97 10 10 10 12 6 - 0.00  
27 64 60 57 52 50 46 77 70 59 30.26 30.18 30.10 10 10 10 15 8 20 0.00  
28 69 62 55 55 51 46 88 73 53 30.32 30.28 30.25 10 10 7 10 6 - 0.00  
29 62 56 51 55 50 45 94 74 63 30.25 30.17 30.09 10 10 10 13 5 17 0.00  
30 66 60 55 55 54 52 94 79 64 30.09 30.03 29.97 10 10 9 12 8 16 0.00