Weather History for St. Catharines, ON

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Month of May, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 86 °F 70 °F 50 °F
Mean Temperature 78 °F 60 °F 42 °F
Min Temperature 71 °F 50 °F 35 °F
Degree Days  
Heating Degree Days (base 65) 22 7 0 209
Cooling Degree Days (base 65) 14 2 0 52
Growing Degree Days (base 50) 28 11 0 333
Dew Point  
Dew Point 72 °F 48 °F 25 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 31 mph 10 mph 0 mph
Gust Wind 37 mph 23 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.40 in 30.02 in 29.52 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 14, 2013 Rise Set
Actual Time 5:53 AM EDT 8:32 PM EDT
Civil Twilight 5:21 AM EDT 9:05 PM EDT
Nautical Twilight 4:40 AM EDT 9:46 PM EDT
Astronomical Twilight 3:53 AM EDT 10:34 PM EDT
Moon 9:32 AM EDT (5/14) No Moon Set
Length of Visible Light 15h 44m
Length of Day
14h 39m
Waxing Crescent, 19% of the Moon is Illuminated
May 14
Waxing Crescent
May 18
First Quarter
May 25
Full
May 31
Last Quarter
Jun 8
New

Weather History Calendar

Precipitation Actual month total 0.00 Average Month Total: 3.45
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Scattered Clouds
Actual:
69 | 51 0.00
Average:
59 | 41 0.10
Scattered Clouds
Actual:
73 | 46 0.00
Average:
60 | 42 0.09
Partly Cloudy
Actual:
73 | 46 0.00
Average:
60 | 43 0.09
Scattered Clouds
Actual:
66 | 50 0.00
Average:
61 | 43 0.09
Scattered Clouds
Actual:
71 | 44 0.00
Average:
61 | 44 0.09
Partly Cloudy
Actual:
68 | 46 0.00
Average:
61 | 44 0.11
Partly Cloudy
Actual:
69 | 48 0.00
Average:
61 | 44 0.11
Rain
Actual:
68 | 51 0.00
Average:
62 | 45 0.12
Partly Cloudy
Actual:
73 | 55 0.00
Average:
62 | 45 0.13
Rain
Actual:
75 | 53 0.00
Average:
62 | 45 0.13
Partly Cloudy
Actual:
55 | 48 0.00
Average:
62 | 45 0.14
Rain
Actual:
50 | 39 0.00
Average:
62 | 46 0.13
Rain
Actual:
50 | 35 0.00
Average:
62 | 46 0.12
Mostly Cloudy
Actual:
55 | 39 0.00
Average:
62 | 46 0.13
Rain
Actual:
77 | 55 0.00
Average:
62 | 46 0.12
Scattered Clouds
Actual:
73 | 53 0.00
Average:
62 | 46 0.12
Partly Cloudy
Actual:
62 | 42 0.00
Average:
62 | 46 0.11
Partly Cloudy
Actual:
69 | 51 0.00
Average:
62 | 46 0.11
Partly Cloudy
Actual:
75 | 51 0.00
Average:
62 | 46 0.11
Partly Cloudy
Actual:
86 | 57 0.00
Average:
63 | 46 0.10
Thunderstorm
Actual:
86 | 57 0.00
Average:
63 | 46 0.11
Partly Cloudy
Actual:
86 | 55 0.00
Average:
63 | 46 0.10
Rain
Actual:
75 | 48 0.00
Average:
64 | 47 0.10
Partly Cloudy
Actual:
51 | 41 0.00
Average:
64 | 47 0.11
Scattered Clouds
Actual:
59 | 44 0.00
Average:
65 | 47 0.10
Scattered Clouds
Actual:
62 | 48 0.00
Average:
65 | 48 0.11
Partly Cloudy
Actual:
69 | 44 0.00
Average:
65 | 48 0.11
Thunderstorm
Actual:
64 | 51 0.00
Average:
65 | 48 0.11
Rain
Actual:
80 | 66 0.00
Average:
66 | 48 0.12
Scattered Clouds
Actual:
84 | 68 0.00
Average:
66 | 49 0.11
Rain
Actual:
86 | 71 0.00
Average:
66 | 49 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

2013 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 69 62 51 55 50 41 82 61 42 30.31 30.30 30.27 15 15 15 14 8 - 0.00  
2 73 60 46 45 41 37 87 45 29 30.40 30.32 30.23 15 15 15 17 6 24 0.00  
3 73 60 46 50 46 39 93 48 31 30.27 30.23 30.16 15 15 15 17 9 22 0.00  
4 66 58 50 45 40 36 82 48 32 30.26 30.20 30.14 15 15 15 17 8 22 0.00  
5 71 58 44 50 43 37 93 49 29 30.20 30.14 30.07 15 15 15 14 6 - 0.00  
6 68 57 46 46 39 30 93 46 26 30.15 30.09 30.03 15 15 15 13 5 17 0.00  
7 69 58 48 54 50 46 93 59 46 30.12 30.06 30.01 15 15 12 13 5 - 0.00  
8 68 60 51 61 56 50 94 81 64 30.04 30.00 29.95 15 13 5 14 5 - 0.00 Rain
9 73 64 55 61 56 48 100 73 41 29.94 29.92 29.90 15 12 5 10 5 - 0.00  
10 75 64 53 61 57 52 94 79 57 29.91 29.82 29.72 15 10 5 22 8 32 0.00 Rain
11 55 52 48 48 45 43 87 79 72 29.78 29.76 29.75 15 12 5 20 14 28 0.00  
12 50 44 39 36 33 30 81 64 50 29.91 29.81 29.78 15 14 10 25 20 37 0.00 Rain
13 50 42 35 34 30 25 81 55 40 30.12 30.09 30.02 15 15 12 20 14 25 0.00 Rain
14 55 47 39 37 32 28 87 48 36 30.15 30.07 29.96 15 15 12 15 8 22 0.00  
15 77 66 55 59 49 43 67 53 43 29.72 29.63 29.52 15 14 12 31 15 37 0.00 Rain
16 73 65 53 46 42 36 63 42 27 29.97 29.84 29.77 15 15 15 20 12 30 0.00  
17 62 52 42 45 42 37 93 58 39 30.22 30.19 30.16 15 15 15 13 6 - 0.00  
18 69 60 51 48 45 43 76 52 40 30.23 30.18 30.13 15 15 15 16 10 22 0.00  
19 75 63 51 61 55 46 82 66 57 30.12 30.04 29.96 15 15 12 15 5 - 0.00  
20 86 72 57 66 63 54 88 64 45 30.02 29.93 29.84 15 15 15 10 6 - 0.00  
21 86 72 57 70 62 55 94 71 40 29.86 29.79 29.73 15 11 2 20 10 29 0.00 Rain , Thunderstorm
22 86 70 55 66 62 55 100 66 45 29.79 29.72 29.62 15 13 3 21 10 29 0.00  
23 75 62 48 61 54 43 87 75 57 29.89 29.77 29.69 15 14 10 23 14 31 0.00 Rain
24 51 46 41 39 35 34 76 66 54 30.23 30.20 30.12 15 15 15 18 15 24 0.00  
25 59 52 44 37 36 34 76 53 39 30.30 30.25 30.21 15 15 15 15 12 21 0.00  
26 62 55 48 39 34 30 66 42 30 30.26 30.24 30.21 15 15 15 15 11 22 0.00  
27 69 56 44 39 37 34 81 39 27 30.29 30.21 30.11 15 15 15 10 5 - 0.00  
28 64 58 51 63 58 50 100 94 83 30.06 29.99 29.90 12 6 1 17 7 24 0.00 Rain , Thunderstorm
29 80 73 66 68 64 63 88 71 61 29.95 29.93 29.91 15 14 10 24 14 32 0.00 Rain
30 84 76 68 72 66 63 83 64 54 30.09 30.07 30.04 15 12 10 18 11 25 0.00  
31 86 78 71 66 65 63 83 60 51 30.03 29.98 29.91 15 14 12 18 14 26 0.00 Rain