Weather History for Grand Rapids, MI

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Month of May, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 91 °F 75 °F 58 °F
Mean Temperature 79 °F 63 °F 52 °F
Min Temperature 67 °F 52 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 13 4 0 131
Cooling Degree Days (base 65) 14 3 0 81
Growing Degree Days (base 50) 28 13 1 412
Dew Point  
Dew Point 66 °F 49 °F 24 °F
Precipitation  
Precipitation 0.45 in 0.09 in 0.00 in 2.72 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 36 mph 9 mph 0 mph
Gust Wind 44 mph 24 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.27 in 29.98 in 29.65 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 12, 2012 Rise Set
Actual Time 6:21 AM EDT 8:55 PM EDT
Civil Twilight 5:49 AM EDT 9:28 PM EDT
Nautical Twilight 5:09 AM EDT 10:08 PM EDT
Astronomical Twilight 4:23 AM EDT 10:54 PM EDT
Moon 2:06 AM EDT (5/12) 1:03 PM EDT (5/12)
Length of Visible Light 15h 38m
Length of Day
14h 33m
Waning Gibbous, 53% of the Moon is Illuminated
May 12
Waning Gibbous
May 12
Last Quarter
May 20
New
May 28
First Quarter
Jun 4
Full

Weather History Calendar

Precipitation Actual month total 2.72 Normal Month Total: 3.98
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Mostly Cloudy
Actual:
64 | 50 T
Average:
65 | 43 0.12
Fog
Actual:
81 | 52 0.01
Average:
65 | 43 0.12
Thunderstorm
Actual:
86 | 65 0.00
Average:
65 | 44 0.12
Thunderstorm
Actual:
80 | 58 0.39
Average:
66 | 44 0.13
Rain
Actual:
60 | 50 0.02
Average:
66 | 44 0.12
Thunderstorm
Actual:
67 | 50 0.45
Average:
66 | 45 0.13
Rain
Actual:
61 | 50 0.28
Average:
67 | 45 0.13
Fog
Actual:
68 | 46 0.00
Average:
67 | 45 0.12
Partly Cloudy
Actual:
63 | 47 0.02
Average:
67 | 46 0.13
Scattered Clouds
Actual:
67 | 40 0.00
Average:
68 | 46 0.13
Scattered Clouds
Actual:
75 | 39 0.00
Average:
68 | 46 0.13
Rain
Actual:
65 | 56 0.14
Average:
68 | 46 0.12
Rain
Actual:
74 | 52 T
Average:
69 | 47 0.13
Partly Cloudy
Actual:
75 | 43 0.00
Average:
69 | 47 0.13
Thunderstorm
Actual:
81 | 47 0.24
Average:
69 | 47 0.13
Rain
Actual:
66 | 46 0.01
Average:
70 | 48 0.12
Scattered Clouds
Actual:
70 | 40 0.00
Average:
70 | 48 0.13
Scattered Clouds
Actual:
81 | 48 0.00
Average:
70 | 48 0.13
Clear
Actual:
87 | 52 0.00
Average:
71 | 49 0.13
Thunderstorm
Actual:
90 | 61 0.32
Average:
71 | 49 0.14
Thunderstorm
Actual:
69 | 53 0.18
Average:
71 | 49 0.14
Scattered Clouds
Actual:
74 | 46 0.00
Average:
71 | 50 0.14
Partly Cloudy
Actual:
80 | 48 0.00
Average:
72 | 50 0.14
Scattered Clouds
Actual:
86 | 59 0.00
Average:
72 | 50 0.13
Rain
Actual:
79 | 62 0.02
Average:
72 | 51 0.14
Rain
Actual:
77 | 62 0.06
Average:
73 | 51 0.12
Partly Cloudy
Actual:
86 | 62 0.00
Average:
73 | 51 0.12
Thunderstorm
Actual:
91 | 67 0.08
Average:
73 | 52 0.13
Thunderstorm
Actual:
80 | 61 0.23
Average:
74 | 52 0.13
Partly Cloudy
Actual:
70 | 48 0.00
Average:
74 | 53 0.12
Rain
Actual:
58 | 45 0.27
Average:
74 | 53 0.13
 

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

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 64 57 50 52 48 45 89 76 63 30.06 30.00 29.91 10 7 5 16 7 18 T  
2 81 67 52 64 56 50 100 70 39 29.95 29.87 29.78 10 6 0 36 12 44 0.01 Fog
3 86 76 65 66 62 57 87 69 51 29.94 29.89 29.83 10 10 10 30 11 40 0.00 Thunderstorm
4 80 69 58 66 62 53 93 79 64 30.04 29.95 29.90 10 9 2 21 10 26 0.39 Rain , Thunderstorm
5 60 55 50 55 48 39 86 75 63 30.12 30.06 30.01 10 10 3 20 10 25 0.02 Rain
6 67 59 50 55 47 39 93 73 52 30.12 30.05 29.94 10 9 3 22 10 26 0.45 Rain , Thunderstorm
7 61 56 50 58 51 45 100 86 71 29.95 29.87 29.84 10 6 0 13 6 15 0.28 Fog , Rain
8 68 57 46 54 48 43 100 71 42 29.86 29.84 29.82 10 4 0 23 8 28 0.00 Fog
9 63 55 47 47 43 31 93 67 41 29.91 29.84 29.80 10 10 7 21 9 30 0.02  
10 67 54 40 38 35 33 79 56 32 30.04 29.97 29.92 10 10 10 18 8 23 0.00  
11 75 57 39 43 37 35 92 58 23 30.15 30.11 30.05 10 10 10 17 7 24 0.00  
12 65 61 56 57 52 41 93 69 44 30.23 30.18 30.10 10 8 3 14 7 17 0.14 Rain
13 74 63 52 47 38 24 83 50 16 30.27 30.20 30.12 10 10 10 15 5 18 T Rain
14 75 59 43 43 39 35 83 54 25 30.12 30.07 30.01 10 10 10 14 4 21 0.00  
15 81 64 47 56 46 41 80 55 30 30.00 29.91 29.77 10 10 5 32 11 41 0.24 Rain , Thunderstorm
16 66 56 46 56 38 32 77 54 31 30.15 30.05 29.90 10 10 7 22 8 29 0.01 Rain
17 70 55 40 43 37 35 86 57 28 30.24 30.17 30.10 10 10 10 12 5 21 0.00  
18 81 65 48 48 43 39 68 47 26 30.15 30.09 30.03 10 10 10 14 7 17 0.00  
19 87 70 52 51 47 42 72 47 21 30.12 30.08 30.04 10 10 10 15 7 20 0.00  
20 90 76 61 62 56 51 76 55 34 30.10 30.03 29.93 10 10 10 23 10 31 0.32 Rain , Thunderstorm
21 69 61 53 63 53 41 93 69 45 30.10 30.05 29.99 10 9 2 21 9 31 0.18 Rain , Thunderstorm
22 74 60 46 47 44 41 86 59 31 30.09 30.02 29.93 10 10 10 14 6 - 0.00  
23 80 64 48 52 49 45 93 63 32 29.96 29.90 29.81 10 10 10 16 5 20 0.00  
24 86 73 59 61 55 51 87 60 32 29.88 29.79 29.65 10 9 5 26 13 36 0.00  
25 79 71 62 61 53 43 73 53 33 30.15 29.94 29.72 10 10 9 21 11 28 0.02 Rain
26 77 70 62 60 58 56 93 73 53 30.24 30.17 30.10 10 10 7 17 7 21 0.06 Rain
27 86 74 62 66 61 57 84 68 51 30.09 30.00 29.89 10 10 10 24 12 31 0.00  
28 91 79 67 65 61 55 81 59 36 29.88 29.78 29.68 10 10 6 22 11 37 0.08 Rain , Thunderstorm
29 80 71 61 64 54 43 93 62 30 29.83 29.77 29.71 10 9 2 30 12 39 0.23 Rain , Thunderstorm
30 70 59 48 51 46 40 77 63 48 29.96 29.87 29.83 10 10 10 21 9 24 0.00  
31 58 52 45 50 43 38 93 77 61 30.04 29.99 29.90 10 10 6 17 8 23 0.27 Rain