Weather History for Duluth, MN

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Month of September, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 84 °F 66 °F 47 °F
Mean Temperature 72 °F 56 °F 43 °F
Min Temperature 62 °F 46 °F 30 °F
Degree Days  
Heating Degree Days (base 65) 22 10 0 287
Cooling Degree Days (base 65) 7 1 0 32
Growing Degree Days (base 50) 22 8 0 230
Dew Point  
Dew Point 70 °F 46 °F 26 °F
Precipitation  
Precipitation 0.37 in 0.05 in 0.00 in 1.48 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 31 mph 7 mph 0 mph
Gust Wind 45 mph 23 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.47 in 30.03 in 29.57 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 06, 2011 Rise Set
Actual Time 6:34 AM CDT 7:38 PM CDT
Civil Twilight 6:03 AM CDT 8:09 PM CDT
Nautical Twilight 5:26 AM CDT 8:47 PM CDT
Astronomical Twilight 4:46 AM CDT 9:26 PM CDT
Moon 4:31 PM CDT (9/6) 12:31 AM CDT (9/6)
Length of Visible Light 14h 06m
Length of Day
13h 04m
Waxing Gibbous, 71% of the Moon is Illuminated
Sep 6
Waxing Gibbous
Sep 12
Full
Sep 20
Last Quarter
Sep 27
New
Oct 3
First Quarter

Weather History Calendar

Precipitation Actual month total 1.48 Normal Month Total: 4.11
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Thunderstorm
Actual:
81 | 62 0.10
Average:
71 | 52 0.14
Rain
Actual:
73 | 56 T
Average:
70 | 51 0.13
Rain
Actual:
75 | 52 0.13
Average:
70 | 51 0.13
Rain
Actual:
64 | 47 T
Average:
70 | 51 0.14
Partly Cloudy
Actual:
62 | 40 0.00
Average:
69 | 50 0.13
Scattered Clouds
Actual:
69 | 44 0.00
Average:
69 | 50 0.14
Clear
Actual:
77 | 50 0.00
Average:
69 | 50 0.14
Clear
Actual:
82 | 58 0.00
Average:
68 | 49 0.14
Clear
Actual:
84 | 60 0.00
Average:
68 | 49 0.15
Clear
Actual:
82 | 54 0.00
Average:
67 | 48 0.14
Clear
Actual:
84 | 59 0.00
Average:
67 | 48 0.14
Thunderstorm
Actual:
82 | 54 0.17
Average:
67 | 48 0.14
Rain
Actual:
67 | 41 0.06
Average:
66 | 47 0.15
Rain
Actual:
52 | 33 0.04
Average:
66 | 47 0.14
Scattered Clouds
Actual:
55 | 30 0.00
Average:
65 | 46 0.15
Scattered Clouds
Actual:
60 | 32 0.00
Average:
65 | 46 0.14
Partly Cloudy
Actual:
57 | 36 0.00
Average:
65 | 46 0.14
Rain
Actual:
55 | 51 0.37
Average:
64 | 45 0.14
Scattered Clouds
Actual:
68 | 47 0.00
Average:
64 | 45 0.14
Rain
Actual:
60 | 51 0.11
Average:
63 | 44 0.14
Rain
Actual:
56 | 41 0.20
Average:
63 | 44 0.14
Rain
Actual:
47 | 39 T
Average:
62 | 44 0.14
Mostly Cloudy
Actual:
51 | 40 0.00
Average:
62 | 43 0.13
Fog
Actual:
55 | 39 0.00
Average:
61 | 43 0.14
Fog
Actual:
61 | 36 0.00
Average:
61 | 42 0.13
Partly Cloudy
Actual:
67 | 49 0.00
Average:
61 | 42 0.13
Partly Cloudy
Actual:
73 | 50 0.00
Average:
60 | 42 0.13
Fog
Actual:
75 | 47 0.00
Average:
60 | 41 0.12
Rain
Actual:
61 | 49 0.30
Average:
59 | 41 0.13
Scattered Clouds
Actual:
57 | 35 0.00
Average:
59 | 40 0.12
 

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 81 72 62 70 63 60 100 85 69 29.95 29.83 29.69 9 2 0 22 8 29 0.10 Fog , Rain , Thunderstorm
2 73 65 56 68 61 53 93 73 53 29.96 29.82 29.69 10 8 1 24 6 29 T Rain
3 75 64 52 63 54 46 93 70 46 29.94 29.86 29.79 10 9 1 21 8 30 0.13 Rain
4 64 56 47 50 46 41 89 69 48 30.22 30.03 29.87 10 10 10 22 11 29 T Rain
5 62 51 40 45 42 38 89 72 55 30.27 30.21 30.17 10 10 10 12 4 15 0.00  
6 69 57 44 52 46 40 89 68 47 30.24 30.21 30.18 10 10 9 16 5 20 0.00  
7 77 64 50 57 51 46 86 66 46 30.31 30.28 30.24 10 10 10 10 4 15 0.00  
8 82 70 58 57 55 53 93 65 37 30.31 30.24 30.14 10 10 10 13 7 15 0.00  
9 84 72 60 59 55 51 78 60 42 30.13 30.09 30.05 10 10 10 10 6 15 0.00  
10 82 68 54 58 54 50 93 68 42 30.11 30.05 29.97 10 10 10 10 4 14 0.00  
11 84 72 59 59 56 54 84 61 37 29.97 29.92 29.88 10 10 10 17 7 23 0.00  
12 82 68 54 63 54 42 84 64 43 29.90 29.73 29.57 10 10 2 31 13 41 0.17 Rain , Thunderstorm
13 67 54 41 46 41 33 89 63 37 30.04 29.94 29.87 10 10 3 29 12 44 0.06 Rain
14 52 43 33 34 31 26 89 66 42 30.36 30.21 30.04 10 10 3 25 11 38 0.04 Rain
15 55 43 30 34 29 26 89 62 35 30.47 30.40 30.32 10 10 10 13 4 17 0.00  
16 60 46 32 35 32 27 82 59 35 30.36 30.30 30.22 10 10 10 16 6 20 0.00  
17 57 47 36 44 39 34 85 66 47 30.30 30.24 30.16 10 10 10 20 9 24 0.00  
18 55 53 51 52 50 45 96 84 71 30.15 30.02 29.92 10 6 1 14 9 18 0.37 Rain
19 68 58 47 50 46 41 93 65 37 29.99 29.95 29.90 10 9 2 17 8 23 0.00  
20 60 56 51 53 47 42 89 73 57 29.93 29.74 29.62 10 10 4 17 9 22 0.11 Rain
21 56 49 41 50 46 36 83 80 76 30.04 29.74 29.58 10 6 2 22 11 30 0.20 Rain
22 47 43 39 41 37 34 89 80 71 30.19 30.11 30.01 10 9 3 14 6 18 T Rain
23 51 46 40 41 40 38 89 78 66 30.21 30.16 30.09 10 10 10 8 3 14 0.00  
24 55 47 39 44 41 38 89 78 66 30.16 30.10 30.06 10 9 2 10 3 14 0.00 Fog
25 61 49 36 48 43 34 93 77 60 30.13 30.07 30.03 10 6 0 15 7 20 0.00 Fog
26 67 58 49 48 45 41 89 67 45 30.04 29.99 29.93 10 10 9 21 10 26 0.00  
27 73 62 50 54 49 47 83 65 47 29.95 29.91 29.88 10 10 8 14 5 17 0.00  
28 75 61 47 54 51 47 93 69 44 29.88 29.81 29.69 10 10 7 12 4 15 0.00 Fog
29 61 55 49 50 43 28 89 60 31 30.07 29.75 29.62 10 9 2 31 15 45 0.30 Rain
30 57 46 35 43 35 30 86 65 44 30.33 30.22 30.10 10 10 10 18 8 24 0.00