Weather in Ottawa: May
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Average day temperature: | 68.7°F |
Average night temperature: | 55.4°F | |
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Number of sunny days: | 10 days |
Day length: | 14.0 - 14.9 hours | |
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Number of rainy days: | 3 days |
Precipitation totals: | 1.7 in. | |
more information |
14 days
forecast
forecast
Ottawa |
weather in
June
June
Ottawa |
Air temperature in May, °F
Show year:
2024
2023
2022
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
0
14
28
42
56
70
84
98
112
Day temperature | Night temperature |
The highest day temperature during May of 2024 was 83°F. At the same time the lowest night temperature was 48°F. Daily and nightly averages during May were 72.5°F and 57.3°F.
Sunny, partly cloudy and cloudy days
Sunny days | |
Partly cloudy days | |
Cloudy days |
31%
38%
31%
Number of sunny, partly cloudy and cloudy days in May is almost equal.
Precipitation total in May, in.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.3
0.6
0.9
1.2
1.5
1.7
2.0
1.5
1.6
1.6
1.2
1.0
1.5
1.6
1.7
1.6
1.2
1.0
Precipitation total value in Ottawa in May is 1.7 in. Other months of the year show relatively similar values.
Wind speed in May, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
2.0
3.9
5.9
7.9
9.8
11.8
13.8
9.7
10.3
9.8
8.5
7.3
6.8
8.3
11.0
11.5
10.1
9.6
9.7
10.3
9.8
8.5
7.3
6.8
8.3
9.3
11.0
11.5
10.1
9.6
The average wind speed value in May is 9.3 mph
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
1.7
3.3
5.0
6.6
8.3
10.0
11.6
3.9
5.5
6.9
9.1
9.2
9.1
9.7
6.6
5.7
5.3
3.8
3.9
5.5
6.9
9.1
9.2
9.1
9.7
7.9
6.6
5.7
5.3
3.8
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in May is: 7.9.
Best time for vacation in Ottawa
Ottawa on a weather map
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Places in USA:
Name
°F
24 Hours Forecast
Ottawa
Local time: 00:17
April 13, sunday
0300

46°F
N
13 mph
13 mph
0600

46°F
N
16 mph
16 mph
0900

50°F
N
17 mph
17 mph
1200

59°F
N
21 mph
21 mph
1500

63°F
N
17 mph
17 mph
1800

64°F
N
14 mph
14 mph
2100

61°F
N
14 mph
14 mph
April 14, monday
0000

59°F
NE
8 mph
8 mph