History for Portland, ME

Month of September, 2012 — View Current Conditions
Month of September, 2012
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Daily Weekly Monthly Custom
  Max Avg Min Sum
Temperature
Max Temperature 82 °F 69 °F 55 °F
Mean Temperature 71 °F 60 °F 48 °F
Min Temperature 64 °F 51 °F 40 °F
Degree Days
Heating Degree Days (base 65) 17 6 0 166
Cooling Degree Days (base 65) 6 1 0 21
Growing Degree Days (base 50) 21 10 0 301
Dew Point
Dew Point 72 °F 53 °F 37 °F
Precipitation
Precipitation 0.94 in 0.14 in 0.00 in 3.80 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind
Wind 26 mph 6 mph 0 mph
Gust Wind 40 mph 21 mph 14 mph
Sea Level Pressure
Sea Level Pressure 30.35 in 30.02 in 29.62 in
Monthly Graph
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Date:
Astronomy
May. 19, 2013 Rise Set
Actual Time 6:13 AM EDT 7:03 PM EDT
Civil Twilight 5:44 AM EDT 7:32 PM EDT
Nautical Twilight 5:09 AM EDT 8:06 PM EDT
Astronomical Twilight 4:33 AM EDT 8:42 PM EDT
Moon 11:32 PM EDT (9/8) 2:06 PM EDT (9/8)
Length Of Visible Light 13h 48m
Length of Day
12h 50m
Waning Gibbous, 49% of the Moon is Illuminated
Sep 8
Waning Gibbous
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter
Visit Astronomy
Monthly Calendar Overview
Print This Calendar Precipitation: Actual month total 3.80 Normal month total 3.69
« Previous Month « 2011 September 2012 2013 » Next Month »
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
1 Clear
Actual: 75 | 58
Precip: 0.00
Average: 75 | 55
Precip: 0.10
2 Rain
Actual: 65 | 57
Precip: 0.21
Average: 75 | 55
Precip: 0.11
3 Partly Cloudy
Actual: 72 | 57
Precip: 0.00
Average: 74 | 55
Precip: 0.11
4 Rain
Actual: 67 | 55
Precip: 0.56
Average: 74 | 55
Precip: 0.10
5 Rain
Actual: 77 | 64
Precip: 0.23
Average: 74 | 54
Precip: 0.10
6 Fog
Actual: 73 | 61
Precip: 0.00
Average: 73 | 54
Precip: 0.10
7 Fog
Actual: 82 | 60
Precip: 0.00
Average: 73 | 54
Precip: 0.10
8 Rain
Actual: 76 | 64
Precip: 0.25
Average: 73 | 53
Precip: 0.11
9 Rain
Actual: 72 | 55
Precip: 0.01
Average: 73 | 53
Precip: 0.11
10 Partly Cloudy
Actual: 68 | 50
Precip: 0.00
Average: 72 | 53
Precip: 0.11
11 Clear
Actual: 72 | 45
Precip: 0.00
Average: 72 | 52
Precip: 0.12
12 Clear
Actual: 73 | 48
Precip: 0.00
Average: 71 | 52
Precip: 0.13
13 Clear
Actual: 77 | 49
Precip: 0.00
Average: 71 | 52
Precip: 0.12
14 Fog
Actual: 77 | 53
Precip: 0.00
Average: 71 | 51
Precip: 0.13
15 Scattered Clouds
Actual: 73 | 52
Precip: 0.01
Average: 70 | 51
Precip: 0.12
16 Clear
Actual: 68 | 44
Precip: 0.00
Average: 70 | 50
Precip: 0.13
17 Clear
Actual: 67 | 40
Precip: 0.00
Average: 70 | 50
Precip: 0.13
18 Rain
Actual: 69 | 50
Precip: 0.12
Average: 69 | 50
Precip: 0.12
19 Rain
Actual: 70 | 48
Precip: 0.71
Average: 69 | 49
Precip: 0.13
20 Clear
Actual: 63 | 40
Precip: 0.00
Average: 68 | 49
Precip: 0.12
21 Partly Cloudy
Actual: 61 | 43
Precip: 0.01
Average: 68 | 48
Precip: 0.13
22 Rain
Actual: 68 | 55
Precip: 0.01
Average: 68 | 48
Precip: 0.13
23 Rain
Actual: 71 | 48
Precip: 0.02
Average: 67 | 47
Precip: 0.13
24 Scattered Clouds
Actual: 63 | 42
Precip: T
Average: 67 | 47
Precip: 0.13
25 Clear
Actual: 68 | 41
Precip: 0.00
Average: 67 | 47
Precip: 0.14
26 Rain
Actual: 68 | 58
Precip: T
Average: 66 | 46
Precip: 0.14
27 Partly Cloudy
Actual: 66 | 44
Precip: 0.00
Average: 66 | 46
Precip: 0.14
28 Rain
Actual: 55 | 40
Precip: 0.94
Average: 65 | 45
Precip: 0.15
29 Rain
Actual: 55 | 50
Precip: 0.10
Average: 65 | 45
Precip: 0.15
30 Rain
Actual: 59 | 53
Precip: 0.62
Average: 65 | 45
Precip: 0.15
 
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 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 75 67 58 65 58 55 93 73 53 30.13 30.02 29.85 10 10 8 13 6 - 0.00  
2 65 61 57 59 57 55 93 86 78 30.18 30.14 30.11 10 9 3 9 3 - 0.21 Rain
3 72 65 57 61 58 55 100 81 61 30.23 30.19 30.15 10 10 10 15 5 24 0.00  
4 67 61 55 63 60 53 100 89 78 30.15 30.07 29.88 10 5 0 12 5 16 0.56 Fog , Rain
5 77 71 64 72 65 62 100 84 68 29.85 29.77 29.65 10 6 0 18 6 26 0.23 Fog , Rain
6 73 67 61 65 63 60 100 88 76 29.91 29.87 29.84 10 10 3 10 3 13 0.00 Fog
7 82 71 60 68 63 59 100 79 58 29.91 29.88 29.84 10 7 1 12 4 16 0.00 Fog
8 76 70 64 70 68 64 100 90 79 29.89 29.76 29.62 10 5 0 23 12 33 0.25 Fog , Rain
9 72 64 55 61 57 53 93 73 53 29.86 29.79 29.65 10 10 10 10 3 - 0.01 Rain
10 68 59 50 52 47 43 93 71 48 30.00 29.91 29.86 10 10 10 22 11 30 0.00  
11 72 59 45 54 46 41 96 67 37 30.25 30.15 30.01 10 10 10 12 5 18 0.00  
12 73 61 48 56 51 46 100 71 41 30.35 30.32 30.25 10 10 9 13 4 15 0.00  
13 77 63 49 62 57 48 100 78 56 30.33 30.29 30.23 10 10 9 13 4 17 0.00  
14 77 65 53 64 59 54 100 82 64 30.23 30.16 30.04 10 9 0 16 4 26 0.00 Fog
15 73 63 52 61 53 43 100 71 41 30.03 29.99 29.94 10 10 7 20 7 26 0.01  
16 68 56 44 44 41 38 86 60 34 30.06 30.01 29.96 10 10 10 14 3 20 0.00  
17 67 54 40 54 47 38 96 72 48 30.10 30.06 30.03 10 10 10 12 3 15 0.00  
18 69 60 50 63 58 49 97 83 68 30.05 29.94 29.71 10 8 3 26 11 40 0.12 Rain
19 70 59 48 66 54 39 100 67 33 30.23 29.88 29.68 10 8 1 24 9 37 0.71 Rain
20 63 52 40 45 42 38 89 69 48 30.30 30.24 30.18 10 10 8 12 5 17 0.00  
21 61 52 43 54 48 42 93 83 72 30.19 30.15 30.08 10 10 10 17 3 - 0.01  
22 68 62 55 61 56 53 93 85 76 30.07 29.93 29.85 10 6 0 10 4 14 0.01 Fog , Rain
23 71 60 48 63 50 37 100 66 31 30.06 29.90 29.77 10 10 4 15 9 24 0.02 Rain
24 63 53 42 47 43 40 96 71 46 30.12 30.08 30.04 10 10 10 10 4 - T  
25 68 55 41 54 46 37 92 67 42 30.12 30.10 30.08 10 10 10 17 6 23 0.00  
26 68 63 58 61 57 50 93 84 75 30.11 30.04 29.98 10 10 10 14 6 24 T Rain
27 66 55 44 60 46 40 97 70 43 30.27 30.14 29.97 10 10 10 16 7 22 0.00  
28 55 48 40 52 47 38 100 87 74 30.28 30.20 30.09 10 7 2 23 5 26 0.94 Rain
29 55 53 50 54 51 48 100 93 86 30.07 29.95 29.89 10 4 2 20 8 31 0.10 Rain
30 59 56 53 57 54 52 100 97 93 29.92 29.77 29.64 10 7 2 14 5 - 0.62 Rain
Comma Delimited File