Climate averages 1991–2020
Calgary weather
in July.
A warm, moderately wet month: the warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a warm month in Calgary: daytime highs average 22.7°C and nights cool to about 10.8°C. By daytime temperature it is the warmest month of the year.
Expect about 61 mm of rain on roughly 11 days, which makes July a moderately wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 16 h 04 min on an average July day.
The nearest other city in this atlas is Airdrie (28 km away). In July its highs average 21.9°C, 0.8°C cooler than Calgary, with 70 mm of rain.
Among the 86 cities listed in Canada, Calgary ranks joint 65th of 86 for the warmest July highs and joint 16th of 86 for the driest July (rainfall, lowest first). The mean July high of those 86 cities is 24.4°C; Calgary is 1.7°C cooler than that mean.
From July to August, average highs fall by 0.4°C to 22.3°C, and monthly rainfall rises from 61 mm to 63 mm.
The annual picture
July in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Calgary climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -2.9°C-13.1°C | -13.1°C | 12 | 3.7 | 8.58 h |
| February | 0.0°C-11.4°C | -11.4°C | 12 | 3.7 | 10.010 h |
| March | 4.2°C-7.6°C | -7.6°C | 21 | 5.5 | 11.812 h |
| April | 10.1°C-2.2°C | -2.2°C | 38 | 8.0 | 13.814 h |
| May | 15.7°C3.0°C | 3.0°C | 72 | 11.3 | 15.516 h |
| June | 19.1°C7.8°C | 7.8°C | 104 | 13.7 | 16.516 h |
| July, selected | 22.7°C10.8°C | 10.8°C | 61 | 10.8 | 16.116 h |
| August | 22.3°C10.1°C | 10.1°C | 63 | 9.5 | 14.615 h |
| September | 17.5°C5.6°C | 5.6°C | 44 | 7.9 | 12.713 h |
| October | 10.2°C-0.7°C | -0.7°C | 24 | 6.2 | 10.811 h |
| November | 2.1°C-7.1°C | -7.1°C | 19 | 4.9 | 9.09 h |
| December | -2.8°C-12.5°C | -12.5°C | 14 | 3.7 | 8.08 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Airdrie in JulyCanada · 28 kmHigh 21.9°C · Low 10.9°C · 70 mm rain
- Red Deer in JulyCanada · 137 kmHigh 22.0°C · Low 11.9°C · 83 mm rain
- Lethbridge in JulyCanada · 175 kmHigh 25.6°C · Low 13.3°C · 35 mm rain
- Sherwood Park in JulyCanada · 279 kmHigh 21.7°C · Low 12.5°C · 88 mm rain
- Edmonton in JulyCanada · 281 kmHigh 22.4°C · Low 13.0°C · 88 mm rain
- Kelowna in JulyCanada · 404 kmHigh 27.9°C · Low 15.6°C · 30 mm rain
- Spokane Valley in JulyUnited States · 439 kmHigh 29.0°C · Low 15.3°C · 15 mm rain
- Kamloops in JulyCanada · 440 kmHigh 27.4°C · Low 15.2°C · 34 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Calgary) is explained once on the Calgary year overview and on the Sources, method and limits page.