Summer weather

Calculations are based on the last 8 years of historical weather data.

Temperatures

Maximum Temperatures

Period	Calgary	Ottawa	Winnipeg	Hamilton
Jun 1	67.8°F	68.7°F	73.9°F	69.6°F
Jun 8	66.9°F	70.5°F	72.5°F	70.7°F
Jun 15	64.9°F	74.7°F	72.9°F	74.1°F
Jun 22	70.2°F	74.8°F	74.8°F	75.7°F
Jul 1	70.0°F	79.7°F	77.4°F	79.3°F
Jul 8	75.2°F	78.3°F	79.0°F	78.4°F
Jul 15	76.1°F	80.1°F	78.4°F	80.1°F
Jul 22	78.6°F	77.7°F	80.1°F	79.2°F
Aug 1	77.7°F	78.3°F	80.2°F	78.8°F
Aug 8	76.5°F	76.8°F	78.4°F	78.3°F
Aug 15	76.3°F	76.6°F	80.6°F	77.4°F
Aug 22	72.9°F	74.1°F	76.6°F	76.6°F
Average	72.8°F	76.5°F	75.9°F	77.1°F

Minimum Temperatures

Period	Calgary	Ottawa	Winnipeg	Hamilton
Jun 1	47.1°F	52.2°F	54.1°F	55.9°F
Jun 8	47.5°F	53.4°F	54.5°F	57.2°F
Jun 15	46.2°F	56.5°F	55.8°F	59.9°F
Jun 22	49.5°F	58.1°F	57.4°F	61.7°F
Jul 1	50.5°F	61.2°F	58.8°F	65.3°F
Jul 8	53.2°F	60.8°F	60.4°F	64.4°F
Jul 15	53.2°F	62.2°F	59.9°F	66.2°F
Jul 22	53.8°F	61.0°F	60.6°F	64.9°F
Aug 1	54.5°F	60.8°F	59.5°F	65.5°F
Aug 8	52.9°F	60.3°F	58.3°F	64.8°F
Aug 15	52.2°F	59.9°F	60.3°F	64.6°F
Aug 22	50.2°F	57.9°F	57.2°F	63.1°F
Average	50.9°F	62.8°F	58.7°F	58.1°F

Maximum/minimum temperature averages are computed by averaging the max/min temperature of each day for a given period.

Conditions

Sunny Weather

Period	Calgary	Ottawa	Winnipeg	Hamilton
Jun 1	7.7 hours/day	4.8 hours/day	6.9 hours/day	5.9 hours/day
Jun 8	6.4 hours/day	6.1 hours/day	7.0 hours/day	7.4 hours/day
Jun 15	6.2 hours/day	7.2 hours/day	5.6 hours/day	9.1 hours/day
Jun 22	8.5 hours/day	5.3 hours/day	6.9 hours/day	7.0 hours/day
Jul 1	6.4 hours/day	8.1 hours/day	8.4 hours/day	9.6 hours/day
Jul 8	10.0 hours/day	7.1 hours/day	8.2 hours/day	7.1 hours/day
Jul 15	10.5 hours/day	7.5 hours/day	8.5 hours/day	7.6 hours/day
Jul 22	11.4 hours/day	7.4 hours/day	9.3 hours/day	6.8 hours/day
Aug 1	10.0 hours/day	7.8 hours/day	9.5 hours/day	7.3 hours/day
Aug 8	9.7 hours/day	6.0 hours/day	7.9 hours/day	7.4 hours/day
Aug 15	9.7 hours/day	5.3 hours/day	8.6 hours/day	6.3 hours/day
Aug 22	8.4 hours/day	5.4 hours/day	7.9 hours/day	7.0 hours/day
Average	8.7 hours/day	7.4 hours/day	6.5 hours/day	7.9 hours/day

Sun hours are computed from the number of hours of direct sunlight. The length of the day can affect these measurements; for example, northern cities have longer days in summer.

Precipitation Levels

Period	Calgary	Ottawa	Winnipeg	Hamilton
Jun 1	0.1in	0.1in	0.1in	0.1in
Jun 8	0.3in	0.1in	0.2in	0.1in
Jun 15	0.2in	0.1in	0.1in	0.1in
Jun 22	0.2in	0.2in	0.1in	0.2in
Jul 1	0.2in	0.1in	0.1in	0.1in
Jul 8	0.1in	0.2in	0.2in	0.1in
Jul 15	0.1in	0.2in	0.1in	0.2in
Jul 22	0.0in	0.2in	0.1in	0.1in
Aug 1	0.1in	0.2in	0.0in	0.1in
Aug 8	0.0in	0.2in	0.1in	0.1in
Aug 15	0.1in	0.1in	0.1in	0.2in
Aug 22	0.1in	0.1in	0.1in	0.1in
Average	0.1in	0.1in	0.1in	0.1in

Average amount of precipitation that falls in a form of a rain, snow, sleet or hail.

Wind Speed

Period	Calgary	Ottawa	Winnipeg	Hamilton
Jun 1	12.1mph	10.3mph	13.9mph	11.7mph
Jun 8	12.2mph	9.9mph	13.0mph	11.8mph
Jun 15	12.4mph	10.1mph	13.1mph	10.8mph
Jun 22	11.8mph	10.1mph	12.7mph	12.2mph
Jul 1	10.6mph	8.4mph	11.9mph	9.7mph
Jul 8	10.7mph	9.1mph	12.1mph	10.1mph
Jul 15	11.3mph	9.4mph	11.9mph	10.8mph
Jul 22	11.4mph	9.1mph	12.6mph	10.6mph
Aug 1	11.3mph	8.6mph	11.4mph	10.3mph
Aug 8	10.6mph	8.8mph	11.4mph	10.8mph
Aug 15	11.1mph	8.6mph	12.8mph	10.6mph
Aug 22	11.8mph	9.1mph	13.1mph	10.8mph
Average	11.4mph	10.9mph	9.3mph	12.5mph

Humidity

Period	Calgary	Ottawa	Winnipeg	Hamilton
Jun 1	61.1%	79.3%	68.3%	72.9%
Jun 8	65.3%	77.8%	70.9%	71.7%
Jun 15	69.7%	77.1%	73.0%	71.5%
Jun 22	67.5%	80.0%	74.2%	75.0%
Jul 1	72.8%	76.1%	71.3%	73.3%
Jul 8	68.0%	76.8%	71.1%	72.6%
Jul 15	65.4%	76.7%	69.1%	74.1%
Jul 22	60.6%	75.0%	64.6%	71.1%
Aug 1	60.2%	75.2%	58.2%	72.4%
Aug 8	58.6%	78.1%	58.8%	69.9%
Aug 15	57.2%	77.3%	56.0%	72.5%
Aug 22	58.9%	76.4%	61.3%	71.3%
Average	63.8%	72.4%	77.1%	66.4%

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Astronomy

Sunrise Time

Period	Calgary	Ottawa	Winnipeg	Hamilton
Jun 1	5:25	5:16	5:23	5:41
Jun 8	5:22	5:14	5:20	5:39
Jun 15	5:21	5:14	5:20	5:39
Jun 22	5:23	5:16	5:22	5:41
Jul 1	5:29	5:20	5:27	5:45
Jul 8	5:35	5:26	5:33	5:50
Jul 15	5:43	5:32	5:41	5:56
Jul 22	5:55	5:41	5:52	6:04
Aug 1	6:07	5:51	6:03	6:13
Aug 8	6:17	5:59	6:13	6:20
Aug 15	6:28	6:07	6:23	6:28
Aug 22	6:41	6:17	6:36	6:37
Average	5:48	6:00	5:36	5:48

Sunrise times are output in the local timezone of each place.

Sunset Time

Period	Calgary	Ottawa	Winnipeg	Hamilton
Jun 1	21:46	20:46	21:32	20:55
Jun 8	21:51	20:51	21:37	20:59
Jun 15	21:55	20:54	21:40	21:02
Jun 22	21:55	20:55	21:42	21:04
Jul 1	21:53	20:54	21:40	21:02
Jul 8	21:49	20:50	21:35	20:59
Jul 15	21:42	20:46	21:29	20:55
Jul 22	21:31	20:37	21:19	20:47
Aug 1	21:17	20:26	21:05	20:37
Aug 8	21:05	20:16	20:53	20:28
Aug 15	20:51	20:05	20:40	20:17
Aug 22	20:33	19:50	20:23	20:04
Average	21:30	20:48	20:36	21:18

Sunset times are output in the local timezone of each place.

Useful Day Length

Period	Calgary	Ottawa	Winnipeg	Hamilton
Jun 1	14:46 hours	13:46 hours	14:32 hours	13:55 hours
Jun 8	14:51 hours	13:51 hours	14:37 hours	13:59 hours
Jun 15	14:55 hours	13:54 hours	14:40 hours	14:02 hours
Jun 22	14:55 hours	13:55 hours	14:42 hours	14:04 hours
Jul 1	14:53 hours	13:54 hours	14:40 hours	14:02 hours
Jul 8	14:49 hours	13:50 hours	14:35 hours	13:59 hours
Jul 15	14:42 hours	13:46 hours	14:29 hours	13:55 hours
Jul 22	14:31 hours	13:37 hours	14:19 hours	13:47 hours
Aug 1	14:17 hours	13:26 hours	14:05 hours	13:37 hours
Aug 8	14:05 hours	13:16 hours	13:53 hours	13:28 hours
Aug 15	13:51 hours	13:05 hours	13:40 hours	13:17 hours
Aug 22	13:33 hours	12:50 hours	13:23 hours	13:04 hours
Average	14:30 hours	13:48 hours	13:36 hours	14:18 hours

Discards daylight hours before 7 AM. In places that are located to the west of the timezone, the sun rises and sets later compared to the cities that are located to the east. This means that the useful day length is longer in the cities located to the west of the time zone.

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