Climate averages 1991–2020
Prince George weather
in September.
A mild, moderately wet month: the 4th warmest and the joint 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a mild month in Prince George: daytime highs average 17.0°C and nights cool to about 7.3°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 54 mm of rain on roughly 10 days, which makes September a moderately wet month (the joint 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 46 min on an average September day.
The nearest other city in this atlas is Grande Prairie (290 km away). In September its highs average 16.1°C, 0.9°C cooler than Prince George, with 40 mm of rain.
Among the 86 cities listed in Canada, Prince George ranks 80th of 86 for the warmest September highs and 13th of 86 for the driest September (rainfall, lowest first). The mean September high of those 86 cities is 19.8°C; Prince George is 2.8°C cooler than that mean.
From September to October, average highs fall by 7.8°C to 9.2°C, and monthly rainfall rises from 54 mm to 76 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
Prince George climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -3.9°C-11.0°C | -11.0°C | 54 | 12.1 | 8.08 h |
| February | -0.4°C-9.0°C | -9.0°C | 31 | 8.4 | 9.710 h |
| March | 4.4°C-5.4°C | -5.4°C | 35 | 9.3 | 11.812 h |
| April | 10.5°C-0.4°C | -0.4°C | 38 | 9.0 | 14.014 h |
| May | 16.8°C5.2°C | 5.2°C | 40 | 9.0 | 15.916 h |
| June | 20.0°C9.5°C | 9.5°C | 53 | 10.0 | 17.017 h |
| July | 22.5°C11.9°C | 11.9°C | 53 | 10.0 | 16.617 h |
| August | 22.3°C11.5°C | 11.5°C | 41 | 8.3 | 14.915 h |
| September, selected | 17.0°C7.3°C | 7.3°C | 54 | 9.8 | 12.813 h |
| October | 9.2°C1.6°C | 1.6°C | 76 | 13.7 | 10.611 h |
| November | 1.8°C-4.0°C | -4.0°C | 67 | 13.7 | 8.69 h |
| December | -3.1°C-9.5°C | -9.5°C | 46 | 10.4 | 7.58 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
- Grande Prairie in SeptemberCanada · 290 kmHigh 16.1°C · Low 6.6°C · 40 mm rain
- Kamloops in SeptemberCanada · 397 kmHigh 21.4°C · Low 10.7°C · 35 mm rain
- Kelowna in SeptemberCanada · 501 kmHigh 22.2°C · Low 12.7°C · 43 mm rain
- North Vancouver in SeptemberCanada · 512 kmHigh 18.8°C · Low 12.1°C · 125 mm rain
- Coquitlam in SeptemberCanada · 515 kmHigh 20.0°C · Low 11.7°C · 142 mm rain
- Burnaby in SeptemberCanada · 517 kmHigh 19.1°C · Low 11.8°C · 125 mm rain
- Vancouver in SeptemberCanada · 520 kmHigh 18.6°C · Low 11.9°C · 125 mm rain
- Maple Ridge in SeptemberCanada · 522 kmHigh 20.0°C · Low 10.9°C · 173 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 Prince George) is explained once on the Prince George year overview and on the Sources, method and limits page.