Grand Rapids, MI

12:26 AM EDT on June 24, 2017 (GMT -0400)
Gerald R. Ford International

Weather History for KGRR - September, 2015

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Month of September, 2015

  Max Avg Min Sum
Temperature  
Max Temperature 89 °F 78 °F 63 °F
Mean Temperature 81 °F 68 °F 53 °F
Min Temperature 72 °F 57 °F 43 °F
Degree Days  
Heating Degree Days (base 65) 12 2 0 60
Cooling Degree Days (base 65) 16 4 0 135
Growing Degree Days (base 50) 30 17 3 518
Dew Point  
Dew Point 74 °F 58 °F 37 °F
Precipitation  
Precipitation 0.85 in 0.08 in 0.00 in 2.26 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 31 mph 7 mph 0 mph
Gust Wind 41 mph 22 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.35 in 30.07 in 29.60 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 06, 2015 Rise Set
Actual Time 7:11 AM EDT 8:08 PM EDT
Civil Twilight 6:42 AM EDT 8:37 PM EDT
Nautical Twilight 6:08 AM EDT 9:11 PM EDT
Astronomical Twilight 5:32 AM EDT 9:47 PM EDT
Moon 1:03 AM EDT (9/6) 3:54 PM EDT (9/6)
Length of Visible Light 13h 54m
Length of Day
12h 56m
Last Quarter, 37% of the Moon is Illuminated
Sep 6
Last Quarter
Sep 13
New
Sep 21
First Quarter
Sep 27
Full
Oct 4
Last Quarter

Daily Weather History & Observations

2015 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 88 76 63 74 68 63 100 78 55 30.08 30.05 30.00 10 5 1 14 5 18 0.00  
2 89 81 72 73 70 68 93 73 53 30.04 30.00 29.96 10 8 6 16 8 23 0.00  
3 83 76 68 74 70 67 93 81 69 29.98 29.93 29.87 10 6 1 20 8 24 0.61 Rain , Thunderstorm
4 80 74 68 70 67 66 97 82 67 30.06 30.00 29.92 10 8 4 10 5 12 0.00  
5 83 74 64 70 66 63 100 79 58 30.14 30.09 30.06 10 4 0 17 5 20 0.26 Fog , Rain , Thunderstorm
6 89 78 66 70 68 65 100 77 53 30.12 30.06 29.99 10 8 4 15 7 21 0.00  
7 85 79 72 72 69 67 87 74 61 30.01 29.98 29.94 9 8 6 15 8 18 T  
8 84 76 68 74 70 66 100 85 69 29.98 29.87 29.76 10 7 1 30 10 41 0.85 Rain , Thunderstorm
9 75 66 57 68 61 51 100 73 46 30.01 29.95 29.85 10 10 10 10 5 13 0.00  
10 74 64 53 60 57 51 100 79 57 29.99 29.94 29.89 10 10 10 16 7 20 0.00  
11 69 61 52 60 53 47 100 74 48 30.01 29.97 29.92 10 10 9 17 7 22 0.01 Rain
12 64 55 46 49 46 43 93 71 48 30.04 30.01 29.97 10 10 10 18 8 25 0.00  
13 70 57 44 48 44 42 92 66 39 30.03 30.00 29.98 10 10 10 16 6 21 0.00  
14 78 63 48 55 50 44 86 65 43 30.12 30.08 30.01 10 10 10 20 9 25 0.00  
15 83 71 58 58 55 52 80 60 40 30.26 30.22 30.13 10 10 10 15 8 19 0.00  
16 82 69 56 56 54 51 86 61 36 30.28 30.21 30.13 10 10 10 17 8 24 0.00  
17 83 70 56 62 58 53 86 67 47 30.13 30.03 29.90 10 10 10 21 10 26 T Rain
18 80 73 66 70 66 56 100 77 53 29.90 29.84 29.75 10 7 2 18 6 22 0.46 Rain , Thunderstorm
19 70 60 50 68 58 47 97 71 45 30.12 29.81 29.60 10 10 4 31 12 39 0.07 Rain , Thunderstorm
20 70 59 47 52 48 44 96 69 42 30.25 30.19 30.12 10 10 10 8 2 10 0.00  
21 73 60 46 53 49 45 93 69 44 30.22 30.17 30.13 10 10 10 12 5 17 0.00  
22 78 64 49 54 50 47 93 63 33 30.25 30.21 30.15 10 10 10 9 3 13 0.00  
23 80 66 51 56 53 49 96 69 42 30.33 30.28 30.25 10 10 10 10 3 14 0.00  
24 79 66 53 61 56 51 100 74 48 30.35 30.30 30.27 10 10 7 13 7 16 0.00  
25 78 68 58 63 59 57 100 75 50 30.32 30.28 30.24 10 6 0 16 9 22 0.00  
26 76 67 57 62 58 54 100 77 54 30.35 30.30 30.23 10 7 1 18 10 21 0.00  
27 73 68 62 63 59 55 90 77 64 30.22 30.13 30.05 10 10 10 16 7 21 0.00  
28 78 72 65 66 64 61 93 81 69 30.05 30.00 29.95 10 10 10 12 7 14 0.00  
29 69 59 48 65 57 45 100 85 69 30.15 30.01 29.92 10 8 2 22 9 27 T Rain
30 63 53 43 44 40 37 89 66 43 30.30 30.22 30.14 10 10 10 22 12 33 0.00