Weather History for Duluth Sky Harbor, MN

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 87 °F 68 °F 57 °F
Mean Temperature 74 °F 60 °F 50 °F
Min Temperature 62 °F 53 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 16 5 0 162
Cooling Degree Days (base 65) 8 1 0 23
Growing Degree Days (base 50) 24 10 0 311
Dew Point  
Dew Point 70 °F 54 °F 37 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 37 mph 8 mph 0 mph
Gust Wind 47 mph 23 mph 10 mph
Sea Level Pressure  
Sea Level Pressure 30.45 in 29.97 in 29.55 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 20, 2013 Rise Set
Actual Time 6:52 AM CDT 7:09 PM CDT
Civil Twilight 6:22 AM CDT 7:39 PM CDT
Nautical Twilight 5:46 AM CDT 8:15 PM CDT
Astronomical Twilight 5:09 AM CDT 8:51 PM CDT
Moon 7:34 PM CDT (9/20) 8:15 AM CDT (9/20)
Length of Visible Light 13h 17m
Length of Day
12h 16m
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

Precipitation Actual month total 0.00 Average Month Total: 2.53
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Thunderstorm
Actual:
73 | 59 0.00
Average:
71 | 53 0.05
Partly Cloudy
Actual:
66 | 53 0.00
Average:
70 | 52 0.05
Clear
Actual:
78 | 48 0.00
Average:
69 | 52 0.05
Scattered Clouds
Actual:
69 | 59 0.00
Average:
72 | 51 0.06
Scattered Clouds
Actual:
64 | 51 0.00
Average:
72 | 52 0.06
Scattered Clouds
Actual:
87 | 60 0.00
Average:
70 | 51 0.06
Scattered Clouds
Actual:
78 | 62 0.00
Average:
69 | 50 0.07
Rain
Actual:
64 | 59 0.00
Average:
71 | 50 0.07
Thunderstorm
Actual:
62 | 59 0.00
Average:
70 | 51 0.08
Partly Cloudy
Actual:
78 | 62 0.00
Average:
67 | 48 0.08
Thunderstorm
Actual:
78 | 57 0.00
Average:
67 | 48 0.09
Partly Cloudy
Actual:
68 | 55 0.00
Average:
67 | 48 0.09
Clear
Actual:
66 | 44 0.00
Average:
66 | 48 0.09
Rain
Actual:
71 | 50 0.00
Average:
65 | 47 0.09
Rain
Actual:
59 | 48 0.00
Average:
66 | 46 0.09
Scattered Clouds
Actual:
60 | 39 0.00
Average:
65 | 46 0.09
Scattered Clouds
Actual:
71 | 46 0.00
Average:
65 | 47 0.09
Thunderstorm
Actual:
60 | 59 0.00
Average:
65 | 47 0.10
Thunderstorm
Actual:
66 | 59 0.00
Average:
65 | 47 0.10
Rain
Actual:
64 | 53 0.00
Average:
62 | 45 0.10
Partly Cloudy
Actual:
60 | 48 0.00
Average:
62 | 44 0.10
Clear
Actual:
59 | 42 0.00
Average:
62 | 42 0.10
Clear
Actual:
60 | 51 0.00
Average:
61 | 40 0.09
Clear
Actual:
60 | 53 0.00
Average:
62 | 40 0.09
Fog
Actual:
57 | 53 0.00
Average:
64 | 42 0.09
Fog
Actual:
59 | 53 0.00
Average:
62 | 42 0.09
Thunderstorm
Actual:
71 | 57 0.00
Average:
62 | 42 0.09
Rain
Actual:
71 | 50 0.00
Average:
59 | 41 0.10
Clear
Actual:
71 | 46 0.00
Average:
61 | 42 0.11
Clear
Actual:
75 | 59 0.00
Average:
62 | 41 0.11
 

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 73 66 59 64 60 52 88 78 64 30.00 29.82 29.68 10 10 7 21 11 23 0.00 Rain , Thunderstorm
2 66 60 53 54 50 48 88 72 52 30.11 30.05 30.00 10 10 7 20 10 18 0.00  
3 78 63 48 61 54 46 93 72 44 30.06 30.00 29.92 10 10 10 16 8 20 0.00  
4 69 64 59 61 56 54 88 82 72 30.20 30.12 29.95 10 10 10 29 12 33 0.00  
5 64 58 51 59 55 48 94 84 72 30.29 30.22 30.13 10 10 2 9 4 - 0.00  
6 87 74 60 70 63 55 94 74 49 30.13 29.96 29.84 10 10 10 18 5 22 0.00  
7 78 70 62 68 63 59 94 87 65 30.13 29.98 29.86 10 10 10 26 6 32 0.00  
8 64 62 59 61 58 55 94 88 82 30.16 30.08 29.93 10 10 10 18 11 23 0.00 Rain
9 62 60 59 61 59 57 100 93 88 29.93 29.78 29.64 10 6 0 37 9 47 0.00 Fog , Rain , Thunderstorm
10 78 70 62 66 63 61 100 83 61 29.94 29.83 29.73 10 8 1 15 6 20 0.00  
11 78 68 57 64 57 48 94 72 34 30.07 29.97 29.93 10 10 10 20 9 25 0.00 Rain , Thunderstorm
12 68 62 55 54 51 46 88 73 49 30.25 30.17 30.07 10 10 10 17 9 18 0.00  
13 66 55 44 54 48 43 93 76 59 30.29 30.21 30.07 10 10 7 9 5 - 0.00  
14 71 60 50 57 51 45 94 76 53 30.07 29.98 29.91 10 10 10 18 9 23 0.00 Rain
15 59 54 48 55 50 46 94 84 72 30.34 30.15 29.95 10 10 7 34 9 44 0.00 Rain
16 60 50 39 52 45 37 100 81 59 30.45 30.36 30.28 10 10 7 9 5 - 0.00  
17 71 58 46 55 48 41 87 72 46 30.28 30.14 29.97 10 10 10 17 5 22 0.00  
18 60 60 59 57 57 55 94 90 82 29.97 29.84 29.75 10 6 1 15 7 - 0.00 Rain , Thunderstorm
19 66 62 59 64 59 57 100 93 88 29.78 29.71 29.65 10 4 0 14 8 - 0.00 Fog , Rain , Thunderstorm
20 64 58 53 61 52 45 94 76 52 29.87 29.78 29.71 10 10 10 22 11 26 0.00 Rain
21 60 54 48 50 42 37 82 65 45 29.99 29.94 29.87 10 10 10 15 9 23 0.00  
22 59 50 42 52 45 39 88 77 54 30.06 30.00 29.94 10 10 10 28 10 31 0.00  
23 60 56 51 55 51 46 94 81 72 30.00 29.96 29.93 10 10 10 18 7 18 0.00  
24 60 56 53 54 52 48 88 83 72 30.02 29.99 29.96 10 10 10 12 4 - 0.00  
25 57 55 53 54 53 52 100 93 88 30.02 29.99 29.94 10 5 0 16 8 16 0.00 Fog
26 59 56 53 55 54 52 100 93 82 30.02 29.97 29.93 10 6 0 26 13 32 0.00 Fog
27 71 64 57 61 56 55 94 86 69 29.98 29.91 29.83 10 10 10 15 10 - 0.00 Rain , Thunderstorm
28 71 61 50 61 55 46 100 76 57 29.88 29.73 29.55 10 10 3 28 13 44 0.00 Rain
29 71 58 46 52 47 43 93 69 35 29.92 29.86 29.77 10 10 10 15 9 21 0.00  
30 75 67 59 57 51 48 82 60 47 29.77 29.65 29.59 10 10 10 21 10 28 0.00