Weather History for Groton, CT

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Month of May, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 81 °F 66 °F 51 °F
Mean Temperature 70 °F 59 °F 50 °F
Min Temperature 62 °F 53 °F 43 °F
Degree Days  
Heating Degree Days (base 65) 16 6 0 193
Cooling Degree Days (base 65) 4 1 0 19
Growing Degree Days (base 50) 20 9 0 290
Dew Point  
Dew Point 70 °F 54 °F 31 °F
Precipitation  
Precipitation 2.31 in 0.16 in 0.00 in 4.85 in
Snowdepth - - - -
Wind  
Wind 21 mph 5 mph 0 mph
Gust Wind 106 mph 26 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.28 in 30.02 in 29.43 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 15, 2012 Rise Set
Actual Time 5:29 AM EDT 8:00 PM EDT
Civil Twilight 4:57 AM EDT 8:32 PM EDT
Nautical Twilight 4:18 AM EDT 9:11 PM EDT
Astronomical Twilight 3:34 AM EDT 9:55 PM EDT
Moon 2:33 AM EDT (5/15) 3:13 PM EDT (5/15)
Length of Visible Light 15h 34m
Length of Day
14h 31m
Waning Crescent, 24% of the Moon is Illuminated
May 15
Waning Crescent
May 20
New
May 28
First Quarter
Jun 4
Full
Jun 11
Last Quarter

Weather History Calendar

Precipitation Actual month total 4.85 Average Month Total: 3.82
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Rain
Actual:
55 | 48 0.30
Average:
63 | 43 0.05
Overcast
Actual:
55 | 46 0.00
Average:
63 | 44 0.10
Rain
Actual:
51 | 48 0.17
Average:
60 | 43 0.16
Rain
Actual:
57 | 50 0.02
Average:
61 | 43 0.15
Overcast
Actual:
55 | 51 0.00
Average:
61 | 42 0.10
Partly Cloudy
Actual:
57 | 48 0.00
Average:
63 | 44 0.11
Partly Cloudy
Actual:
61 | 46 0.00
Average:
64 | 43 0.07
Rain
Actual:
57 | 53 0.02
Average:
61 | 43 0.10
Rain
Actual:
59 | 53 2.31
Average:
61 | 43 0.25
Rain
Actual:
66 | 48 0.30
Average:
65 | 46 0.14
Scattered Clouds
Actual:
66 | 46 0.00
Average:
65 | 46 0.10
Clear
Actual:
72 | 43 0.00
Average:
66 | 45 0.15
Clear
Actual:
72 | 50 0.00
Average:
65 | 46 0.07
Partly Cloudy
Actual:
66 | 57 0.00
Average:
66 | 45 0.08
Rain
Actual:
63 | 57 0.57
Average:
64 | 45 0.14
Rain
Actual:
66 | 55 0.67
Average:
65 | 48 0.16
Fog
Actual:
72 | 52 0.00
Average:
68 | 48 0.11
Clear
Actual:
66 | 45 0.00
Average:
67 | 48 0.08
Clear
Actual:
70 | 46 0.00
Average:
65 | 47 0.17
Fog
Actual:
72 | 50 0.00
Average:
67 | 48 0.18
Rain
Actual:
68 | 55 0.00
Average:
68 | 49 0.11
Rain
Actual:
66 | 60 0.39
Average:
70 | 49 0.05
Partly Cloudy
Actual:
71 | 59 0.00
Average:
69 | 48 0.12
Fog
Actual:
64 | 57 0.00
Average:
69 | 49 0.19
Rain
Actual:
66 | 57 0.03
Average:
66 | 49 0.27
Rain
Actual:
73 | 60 0.06
Average:
68 | 49 0.04
Scattered Clouds
Actual:
78 | 62 0.00
Average:
67 | 48 0.04
Fog
Actual:
75 | 62 0.00
Average:
70 | 49 0.14
Fog
Actual:
80 | 60 0.01
Average:
70 | 50 0.17
Rain
Actual:
75 | 60 0.00
Average:
70 | 51 0.07
Fog
Actual:
81 | 57 0.00
Average:
71 | 53 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 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 55 52 48 55 49 41 100 91 68 30.23 30.06 29.95 10 5 1 17 12 25 0.30 Rain
2 55 50 46 49 46 43 93 85 72 30.20 30.17 30.11 10 10 10 15 9 21 0.00  
3 51 50 48 50 49 48 100 97 93 30.19 30.15 30.12 10 4 1 13 8 - 0.17 Rain
4 57 52 50 56 53 50 100 99 93 30.12 29.98 29.90 7 2 0 10 5 - 0.02 Fog , Rain
5 55 53 51 54 52 50 100 97 89 30.06 29.98 29.91 10 5 1 8 4 - 0.00  
6 57 54 48 53 50 47 100 86 74 30.13 30.09 30.06 10 9 7 12 6 - 0.00  
7 61 53 46 51 48 46 100 85 67 30.16 30.13 30.11 10 10 8 13 3 - 0.00  
8 57 55 53 55 51 48 100 87 74 30.12 30.00 29.90 10 8 2 21 9 28 0.02 Rain
9 59 55 53 58 56 54 100 100 94 29.90 29.75 29.58 3 2 0 15 5 - 2.31 Fog , Rain
10 66 58 48 57 51 39 100 84 51 29.77 29.53 29.43 10 8 2 17 6 26 0.30 Rain
11 66 56 46 45 40 31 89 61 27 30.06 29.91 29.78 10 10 10 18 9 26 0.00  
12 72 58 43 52 43 33 89 57 31 30.19 30.13 30.06 10 10 10 16 8 24 0.00  
13 72 60 50 56 53 48 96 78 56 30.18 30.14 30.11 10 9 7 9 3 - 0.00  
14 66 62 57 61 57 55 93 87 78 30.17 30.14 30.09 10 9 6 10 4 - 0.00  
15 63 60 57 60 57 55 100 94 78 30.17 30.06 29.97 10 5 0 18 7 25 0.57 Fog , Rain
16 66 60 55 64 59 55 100 99 90 29.97 29.90 29.84 7 1 0 20 4 106 0.67 Fog , Rain
17 72 62 52 57 49 38 100 76 29 30.14 29.98 29.89 10 7 0 18 5 25 0.00 Fog
18 66 54 45 50 44 39 100 70 39 30.25 30.20 30.15 10 9 5 10 4 - 0.00  
19 70 57 46 50 46 41 89 69 43 30.18 30.15 30.12 10 9 1 15 5 - 0.00  
20 72 60 50 52 46 35 94 68 28 30.28 30.22 30.16 10 8 0 15 5 21 0.00 Fog
21 68 62 55 65 58 46 100 92 67 30.25 30.16 30.03 10 3 0 15 7 23 0.00 Fog , Rain
22 66 63 60 64 62 60 100 98 93 30.02 29.88 29.79 10 3 0 14 8 20 0.39 Fog , Rain
23 71 65 59 63 61 57 100 93 75 30.06 29.93 29.85 10 6 1 9 2 - 0.00  
24 64 60 57 61 59 55 100 96 87 30.25 30.17 30.07 10 3 0 13 5 - 0.00 Fog
25 66 60 57 63 60 57 100 95 87 30.25 30.20 30.14 10 2 0 12 6 - 0.03 Fog , Rain
26 73 66 60 67 63 60 100 92 81 30.14 30.12 30.07 10 3 0 9 3 - 0.06 Fog , Rain
27 78 70 62 64 61 56 97 83 48 30.14 30.09 30.04 10 8 2 10 3 - 0.00  
28 75 68 62 68 64 60 100 93 78 30.01 29.96 29.93 10 3 0 13 4 - 0.00 Fog
29 80 70 60 70 63 60 100 91 74 29.93 29.84 29.73 9 3 0 14 5 16 0.01 Fog
30 75 66 60 67 63 59 100 88 71 29.75 29.74 29.71 9 6 2 6 2 - 0.00 Rain
31 81 69 57 63 55 47 100 78 34 29.90 29.74 29.70 10 4 0 15 2 20 0.00 Fog