Winter weather

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

Temperatures

Maximum Temperatures

Period	Calgary	Ottawa	Winnipeg	Hamilton
Dec 1	30.2°F	33.4°F	23.9°F	38.8°F
Dec 8	29.7°F	31.3°F	22.3°F	37.8°F
Dec 15	24.8°F	29.3°F	18.7°F	36.1°F
Dec 22	20.3°F	27.9°F	13.3°F	36.0°F
Jan 1	24.6°F	26.2°F	14.5°F	33.3°F
Jan 8	22.1°F	25.7°F	13.8°F	33.8°F
Jan 15	23.9°F	19.8°F	11.1°F	27.9°F
Jan 22	29.7°F	22.5°F	12.9°F	30.4°F
Feb 1	18.7°F	25.3°F	10.9°F	31.5°F
Feb 8	19.8°F	25.2°F	10.8°F	31.6°F
Feb 15	23.0°F	27.5°F	12.2°F	33.8°F
Feb 22	27.1°F	30.4°F	18.7°F	37.0°F
Average	24.5°F	34.0°F	27.0°F	15.3°F

Minimum Temperatures

Period	Calgary	Ottawa	Winnipeg	Hamilton
Dec 1	16.2°F	24.6°F	11.3°F	30.7°F
Dec 8	15.6°F	21.2°F	10.2°F	29.7°F
Dec 15	11.7°F	18.0°F	5.7°F	28.6°F
Dec 22	7.0°F	17.4°F	1.2°F	27.9°F
Jan 1	10.8°F	14.7°F	0.5°F	25.2°F
Jan 8	7.7°F	10.8°F	0.1°F	23.4°F
Jan 15	9.0°F	4.5°F	-4.9°F	19.0°F
Jan 22	14.7°F	6.3°F	-2.9°F	19.9°F
Feb 1	5.0°F	7.9°F	-3.8°F	20.3°F
Feb 8	3.4°F	9.9°F	-6.3°F	21.0°F
Feb 15	6.4°F	9.7°F	-5.6°F	22.1°F
Feb 22	9.7°F	15.8°F	1.6°F	25.9°F
Average	9.8°F	24.5°F	13.4°F	0.6°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
Dec 1	3.6 hours/day	1.9 hours/day	1.9 hours/day	1.3 hours/day
Dec 8	3.7 hours/day	2.8 hours/day	2.2 hours/day	2.4 hours/day
Dec 15	3.6 hours/day	1.9 hours/day	1.4 hours/day	1.3 hours/day
Dec 22	2.9 hours/day	1.3 hours/day	1.3 hours/day	1.0 hours/day
Jan 1	4.2 hours/day	1.1 hours/day	1.8 hours/day	1.5 hours/day
Jan 8	2.1 hours/day	2.3 hours/day	1.1 hours/day	1.6 hours/day
Jan 15	3.2 hours/day	1.9 hours/day	0.5 hours/day	1.6 hours/day
Jan 22	3.5 hours/day	1.7 hours/day	0.6 hours/day	1.4 hours/day
Feb 1	1.9 hours/day	1.8 hours/day	0.8 hours/day	1.9 hours/day
Feb 8	2.7 hours/day	1.9 hours/day	0.9 hours/day	1.6 hours/day
Feb 15	3.1 hours/day	1.4 hours/day	1.9 hours/day	2.0 hours/day
Feb 22	3.3 hours/day	1.3 hours/day	1.4 hours/day	2.2 hours/day
Average	3.2 hours/day	1.7 hours/day	1.8 hours/day	1.3 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
Dec 1	0.0in	0.2in	0.0in	0.1in
Dec 8	0.0in	0.2in	0.1in	0.1in
Dec 15	0.0in	0.2in	0.0in	0.1in
Dec 22	0.0in	0.2in	0.0in	0.2in
Jan 1	0.0in	0.2in	0.0in	0.1in
Jan 8	0.0in	0.2in	0.0in	0.2in
Jan 15	0.0in	0.2in	0.0in	0.1in
Jan 22	0.0in	0.1in	0.0in	0.1in
Feb 1	0.0in	0.2in	0.0in	0.1in
Feb 8	0.0in	0.2in	0.0in	0.1in
Feb 15	0.0in	0.2in	0.0in	0.3in
Feb 22	0.0in	0.2in	0.0in	0.2in
Average	0.0in	0.1in	0.2in	0.0in

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

Wind Speed

Period	Calgary	Ottawa	Winnipeg	Hamilton
Dec 1	10.6mph	11.9mph	11.9mph	15.4mph
Dec 8	10.2mph	11.6mph	12.9mph	14.6mph
Dec 15	10.6mph	11.3mph	12.9mph	14.5mph
Dec 22	9.4mph	10.4mph	11.2mph	14.2mph
Jan 1	11.0mph	11.2mph	11.4mph	14.1mph
Jan 8	10.6mph	12.2mph	12.3mph	15.1mph
Jan 15	11.3mph	11.1mph	13.2mph	15.2mph
Jan 22	11.1mph	10.9mph	11.3mph	14.6mph
Feb 1	9.8mph	10.7mph	12.8mph	14.4mph
Feb 8	10.9mph	11.1mph	12.4mph	14.3mph
Feb 15	9.8mph	12.7mph	12.0mph	16.3mph
Feb 22	10.8mph	12.7mph	11.9mph	16.7mph
Average	10.5mph	15.0mph	11.5mph	12.2mph

Humidity

Period	Calgary	Ottawa	Winnipeg	Hamilton
Dec 1	73.6%	80.5%	87.3%	75.4%
Dec 8	75.1%	80.3%	88.4%	76.0%
Dec 15	79.6%	83.4%	89.8%	79.0%
Dec 22	83.2%	86.3%	92.9%	84.2%
Jan 1	79.6%	86.1%	90.6%	79.7%
Jan 8	81.1%	87.3%	91.4%	77.7%
Jan 15	81.6%	87.6%	91.4%	79.4%
Jan 22	79.4%	87.9%	92.1%	80.8%
Feb 1	81.4%	87.9%	90.7%	81.2%
Feb 8	81.3%	87.4%	90.6%	78.4%
Feb 15	82.3%	87.4%	89.6%	79.9%
Feb 22	80.8%	86.9%	90.7%	79.2%
Average	79.9%	79.2%	85.8%	90.5%

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Astronomy

Sunrise Time

Period	Calgary	Ottawa	Winnipeg	Hamilton
Dec 1	8:22	7:26	8:09	7:35
Dec 8	8:30	7:33	8:16	7:42
Dec 15	8:35	7:38	8:22	7:47
Dec 22	8:39	7:42	8:26	7:50
Jan 1	8:39	7:43	8:26	7:52
Jan 8	8:36	7:41	8:23	7:50
Jan 15	8:31	7:37	8:18	7:47
Jan 22	8:20	7:30	8:09	7:41
Feb 1	8:08	7:20	7:58	7:32
Feb 8	7:56	7:11	7:46	7:23
Feb 15	7:43	6:59	7:34	7:13
Feb 22	7:29	6:48	7:20	7:02
Average	8:18	7:36	7:24	8:06

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

Sunset Time

Period	Calgary	Ottawa	Winnipeg	Hamilton
Dec 1	16:31	16:20	16:28	16:44
Dec 8	16:29	16:19	16:27	16:44
Dec 15	16:30	16:21	16:28	16:46
Dec 22	16:35	16:26	16:33	16:50
Jan 1	16:44	16:33	16:41	16:57
Jan 8	16:53	16:41	16:50	17:05
Jan 15	17:04	16:50	17:01	17:13
Jan 22	17:18	17:02	17:14	17:24
Feb 1	17:33	17:14	17:29	17:35
Feb 8	17:46	17:25	17:41	17:45
Feb 15	17:58	17:35	17:53	17:55
Feb 22	18:10	17:44	18:05	18:04
Average	17:06	17:18	16:54	17:06

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

Useful Day Length

Period	Calgary	Ottawa	Winnipeg	Hamilton
Dec 1	8:09 hours	8:55 hours	8:19 hours	9:09 hours
Dec 8	7:59 hours	8:46 hours	8:11 hours	9:02 hours
Dec 15	7:55 hours	8:43 hours	8:06 hours	8:59 hours
Dec 22	7:56 hours	8:44 hours	8:07 hours	9:00 hours
Jan 1	8:05 hours	8:50 hours	8:16 hours	9:05 hours
Jan 8	8:17 hours	9:00 hours	8:27 hours	9:14 hours
Jan 15	8:33 hours	9:13 hours	8:43 hours	9:26 hours
Jan 22	8:58 hours	9:32 hours	9:05 hours	9:43 hours
Feb 1	9:25 hours	9:54 hours	9:31 hours	10:04 hours
Feb 8	9:49 hours	10:14 hours	9:55 hours	10:22 hours
Feb 15	10:15 hours	10:35 hours	10:19 hours	10:41 hours
Feb 22	10:41 hours	10:44 hours	10:45 hours	11:02 hours
Average	8:48 hours	9:36 hours	9:24 hours	9:00 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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