Do you need to know, when is the best time to go to Alberta? Then you should take a look here, what weather you can expect there during the year.
Alberta is part of Canada. Canada is a huge country, so the climate here varies from temperate in south to subarctic and arctic in north. Winters are sometimes tough, especially in the interior, where the climate is continental. You can expect snow in some places for five months of the year. Southern coastal parts of Canada have a temperate climate, with mild and rainy winters and quite warm summers.
When speaking about the usual weather in this area, the information is relevant for example for these popular places: Airdrie, Alberta Rockies, Alberta badlands, Alix, Athabasca, Banff, Banff National Park, Brooks, Calgary, Calgary Region, Cambria, Canmore, Cardston, Central Alberta, Claresholm, Cochrane, Cold Lake, Columbia Icefield, Crowsnest Pass, Devon, Drumheller, East Coulee, Eastern Alberta, Edmonton, Edmonton Capital Region, Edson, Elk Island National Park, Fort Chipewyan, Fort MacKay, Fort Macleod, Fort McMurray, Fort Saskatchewan, Grande Cache, Grande Prairie, High River, Hinton, Jasper, Jasper National Park, Kananaskis Country, Lac La Biche, Lake Louise, Leduc, Lethbridge, Longview, Medicine Hat, Morinville, Nanton, Okotoks, Olds and Didsbury, Oyen, Peace River, Peace River Valley, Red Deer, Sherwood Park, Slave Lake, Southern Alberta, Spruce Grove, St. Albert, Stony Plain, Strathmore, Tofield, Valleyview, Vegreville, Wabamun, Waterton Lakes National Park, Wood Buffalo National Park.
Let's look now what weather you can expect in the area around Calgary and in many other cities. The warmest month here is July, the average maximum temperature is 23 ℃ (73.4 ℉). The average minimum temperature in this month is 9.7 ℃ (49.46 ℉). The coldest month here is January, the average maximum temperature is -2.6 ℃ (27.32 ℉). The average minimum temperature in this month is -15.1 ℃ (4.82 ℉). The most rainy month here is June, the average number of rainy days is 13.6. The least rainy month here is October, the average number of rainy days is 6.3. 
When travelling around Alberta, always consider the altitude of the the place as well. We should remind you, that the highest point in Canada is Mount Logan (5959 m) and the lowest point is Atlantic Ocean (0 m). So there are huge differences in altitudes in this country and the weather is very different in them therefore. Keep in mind, that the temperature usually decreases by 1.2 - 1.9 ℃ (2.2 - 3.5 ℉) per 200 m (656 ft), depending on the other conditions. (And we should add, that in the very special condition named thermal inversion even the temperature may be higher in higher altitudes.)
Typical (usual) weather in Alberta in January is this: The average highest temperature in Alberta in January is -2.6 ℃ (27.32 ℉). The average lowest temperature is -15.1 ℃ (4.82 ℉). At the beginning of January you can expect higher temperatures, the average highest temperature is around -1.85 ℃ (28.67 ℉). At the end of January you can expect higher temperatures, the average highest temperature is around -1.25 ℃ (29.75 ℉). The average number of rainy days in January is 9. The average rainfall is 11.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 7:58 (hours and minutes), in the middle of the month 8:24 and at the end of the month 9:06.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Alberta in February is this: The average highest temperature in Alberta in February is 0.1 ℃ (32.18 ℉). The average lowest temperature is -11.6 ℃ (11.12 ℉). At the beginning of February you can expect lower temperatures, the average highest temperature is around -1.25 ℃ (29.75 ℉). At the end of February you can expect higher temperatures, the average highest temperature is around 2.1 ℃ (35.78 ℉). The average number of rainy days in February is 6.8. The average rainfall is 8.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 9:06 (hours and minutes), in the middle of the month 9:58 and at the end of the month 10:55.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.
Typical (usual) weather in Alberta in March is this: The average highest temperature in Alberta in March is 4.1 ℃ (39.38 ℉). The average lowest temperature is -7.8 ℃ (17.96 ℉). At the beginning of March you can expect lower temperatures, the average highest temperature is around 2.1 ℃ (35.78 ℉). At the end of March you can expect higher temperatures, the average highest temperature is around 7.7 ℃ (45.86 ℉). The average number of rainy days in March is 9.2. The average rainfall is 17.1 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 10:55 (hours and minutes), in the middle of the month 11:54 and at the end of the month 12:52.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Alberta in April is this: The average highest temperature in Alberta in April is 11.3 ℃ (52.34 ℉). The average lowest temperature is -1.9 ℃ (28.58 ℉). At the beginning of April you can expect lower temperatures, the average highest temperature is around 7.7 ℃ (45.86 ℉). At the end of April you can expect higher temperatures, the average highest temperature is around 14.1 ℃ (57.38 ℉). The average number of rainy days in April is 8.9. The average rainfall is 24.5 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 12:52 (hours and minutes), in the middle of the month 13:50 and at the end of the month 14:45.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.
Typical (usual) weather in Alberta in May is this: The average highest temperature in Alberta in May is 16.9 ℃ (62.42 ℉). The average lowest temperature is 3.3 ℃ (37.94 ℉). At the beginning of May you can expect lower temperatures, the average highest temperature is around 14.1 ℃ (57.38 ℉). At the end of May you can expect higher temperatures, the average highest temperature is around 18.55 ℃ (65.39 ℉). The average number of rainy days in May is 11.5. The average rainfall is 61.6 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 14:45 (hours and minutes), in the middle of the month 15:33 and at the end of the month 16:11.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Alberta in June is this: The average highest temperature in Alberta in June is 20.2 ℃ (68.36 ℉). The average lowest temperature is 7.5 ℃ (45.5 ℉). At the beginning of June you can expect lower temperatures, the average highest temperature is around 18.55 ℃ (65.39 ℉). At the end of June you can expect higher temperatures, the average highest temperature is around 21.6 ℃ (70.88 ℉). The average number of rainy days in June is 13.6. The average rainfall is 78.9 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 16:11 (hours and minutes), in the middle of the month 16:31 and at the end of the month 16:31.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.
Typical (usual) weather in Alberta in July is this: The average highest temperature in Alberta in July is 23 ℃ (73.4 ℉). The average lowest temperature is 9.7 ℃ (49.46 ℉). At the beginning of July you can expect lower temperatures, the average highest temperature is around 21.6 ℃ (70.88 ℉). At the end of July you can expect lower temperatures, the average highest temperature is around 22.9 ℃ (73.22 ℉). The average number of rainy days in July is 13.1. The average rainfall is 69.2 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 16:31 (hours and minutes), in the middle of the month 16:09 and at the end of the month 15:31.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Alberta in August is this: The average highest temperature in Alberta in August is 22.8 ℃ (73.04 ℉). The average lowest temperature is 8.7 ℃ (47.66 ℉). At the beginning of August you can expect higher temperatures, the average highest temperature is around 22.9 ℃ (73.22 ℉). At the end of August you can expect lower temperatures, the average highest temperature is around 20.4 ℃ (68.72 ℉). The average number of rainy days in August is 11.2. The average rainfall is 58.3 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 15:31 (hours and minutes), in the middle of the month 14:42 and at the end of the month 13:48.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Alberta in September is this: The average highest temperature in Alberta in September is 18 ℃ (64.4 ℉). The average lowest temperature is 4.1 ℃ (39.38 ℉). At the beginning of September you can expect higher temperatures, the average highest temperature is around 20.4 ℃ (68.72 ℉). At the end of September you can expect lower temperatures, the average highest temperature is around 15.2 ℃ (59.36 ℉). The average number of rainy days in September is 9.4. The average rainfall is 45.1 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 13:48 (hours and minutes), in the middle of the month 12:51 and at the end of the month 11:53.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Alberta in October is this: The average highest temperature in Alberta in October is 12.4 ℃ (54.32 ℉). The average lowest temperature is -1.2 ℃ (29.84 ℉). At the beginning of October you can expect higher temperatures, the average highest temperature is around 15.2 ℃ (59.36 ℉). At the end of October you can expect lower temperatures, the average highest temperature is around 7.7 ℃ (45.86 ℉). The average number of rainy days in October is 6.3. The average rainfall is 13.7 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 11:53 (hours and minutes), in the middle of the month 10:56 and at the end of the month 9:59.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Alberta in November is this: The average highest temperature in Alberta in November is 3 ℃ (37.4 ℉). The average lowest temperature is -8.8 ℃ (16.16 ℉). At the beginning of November you can expect higher temperatures, the average highest temperature is around 7.7 ℃ (45.86 ℉). At the end of November you can expect lower temperatures, the average highest temperature is around 0.95 ℃ (33.71 ℉). The average number of rainy days in November is 7.7. The average rainfall is 12.1 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 9:59 (hours and minutes), in the middle of the month 9:08 and at the end of the month 8:25.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.Typical (usual) weather in Alberta in December is this: The average highest temperature in Alberta in December is -1.1 ℃ (30.02 ℉). The average lowest temperature is -13.2 ℃ (8.24 ℉). At the beginning of December you can expect higher temperatures, the average highest temperature is around 0.95 ℃ (33.71 ℉). At the end of December you can expect lower temperatures, the average highest temperature is around -1.85 ℃ (28.67 ℉). The average number of rainy days in December is 7.5. The average rainfall is 12.4 mm (look here, what this number means). When planning your travel, please, keep in mind, that actual weather may differ from these average values. The length of the day at the beginning of this month is approximately 8:25 (hours and minutes), in the middle of the month 7:59 and at the end of the month 7:54.These numbers above are valid primarily for the capital and the area around it. It is important to say, that the weather may differ significantly in different altitudes, especially in mountains.| Edmonton | temperature: - | highest temperature: -5.7 ℃ (21.74 ℉) | lowest temperature: -16.8 ℃ (1.76 ℉) | rainfall: 16.9mm | rainy days: 10.1 |
| Calgary | temperature: - | highest temperature: -1.1 ℃ (30.02 ℉) | lowest temperature: -13.2 ℃ (8.24 ℉) | rainfall: 12.4mm | rainy days: 7.5 |
| Banff | temperature: - | highest temperature: -5 ℃ (23 ℉) | lowest temperature: -12.8 ℃ (8.96 ℉) | rainfall: 33.4mm | rainy days: 11.1 |
| Red Deer | temperature: - | highest temperature: -5 ℃ (23 ℉) | lowest temperature: -16.9 ℃ (1.58 ℉) | rainfall: 17mm | rainy days: 8.7 |
| Grande Prairie | temperature: - | highest temperature: -7.2 ℃ (19.04 ℉) | lowest temperature: -17.5 ℃ (0.5 ℉) | rainfall: 26.3mm | rainy days: 10.7 |
| Medicine Hat | temperature: - | highest temperature: -2 ℃ (28.4 ℉) | lowest temperature: -13.3 ℃ (8.06 ℉) | rainfall: 14.9mm | rainy days: 8.8 |
| Lethbridge | temperature: - | highest temperature: 0 ℃ (32 ℉) | lowest temperature: -12 ℃ (10.4 ℉) | rainfall: 16.9mm | rainy days: 9 |