Climate averages 1991–2020
Airdrie weather
in September.
A mild, moderately wet month: the 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Airdrie: daytime highs average 16.6°C and nights cool to about 5.8°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 45 mm of rain on roughly 9 days, which makes September a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 42 min on an average September day.
The nearest other city in this atlas is Calgary (28 km away). In September its highs average 17.5°C, 0.8°C warmer than Airdrie, with 44 mm of rain.
Among the 86 cities listed in Canada, Airdrie ranks joint 82nd of 86 for the warmest September highs and 12th of 86 for the driest September (rainfall, lowest first). The mean September high of those 86 cities is 19.8°C; Airdrie is 3.1°C cooler than that mean.
From September to October, average highs fall by 7.2°C to 9.4°C, and monthly rainfall falls from 45 mm to 26 mm.
The annual picture
September 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
Airdrie climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -3.3°C-12.8°C | -12.8°C | 13 | 3.9 | 8.48 h |
| February | -0.6°C-11.4°C | -11.4°C | 12 | 4.0 | 9.910 h |
| March | 3.6°C-7.7°C | -7.7°C | 22 | 5.7 | 11.812 h |
| April | 9.5°C-2.0°C | -2.0°C | 39 | 8.4 | 13.814 h |
| May | 15.0°C3.2°C | 3.2°C | 75 | 11.1 | 15.616 h |
| June | 18.5°C7.9°C | 7.9°C | 107 | 14.4 | 16.517 h |
| July | 21.9°C10.9°C | 10.9°C | 70 | 11.8 | 16.116 h |
| August | 21.4°C10.3°C | 10.3°C | 68 | 9.9 | 14.615 h |
| September, selected | 16.6°C5.8°C | 5.8°C | 45 | 8.5 | 12.713 h |
| October | 9.4°C-0.4°C | -0.4°C | 26 | 6.4 | 10.711 h |
| November | 1.5°C-6.9°C | -6.9°C | 20 | 5.5 | 9.09 h |
| December | -3.3°C-12.2°C | -12.2°C | 14 | 4.0 | 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
September in nearby cities
- Calgary in SeptemberCanada · 28 kmHigh 17.5°C · Low 5.6°C · 44 mm rain
- Red Deer in SeptemberCanada · 109 kmHigh 16.6°C · Low 6.3°C · 41 mm rain
- Lethbridge in SeptemberCanada · 198 kmHigh 19.7°C · Low 8.3°C · 37 mm rain
- Sherwood Park in SeptemberCanada · 251 kmHigh 16.0°C · Low 6.7°C · 38 mm rain
- Edmonton in SeptemberCanada · 253 kmHigh 16.7°C · Low 7.2°C · 38 mm rain
- Kelowna in SeptemberCanada · 416 kmHigh 22.2°C · Low 12.7°C · 43 mm rain
- Kamloops in SeptemberCanada · 445 kmHigh 21.4°C · Low 10.7°C · 35 mm rain
- Spokane Valley in SeptemberUnited States · 465 kmHigh 23.2°C · Low 10.5°C · 22 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 Airdrie) is explained once on the Airdrie year overview and on the Sources, method and limits page.