Climate averages 1991–2020
Grande Prairie weather
in August.
A mild, moderately wet month: the 2nd warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Grande Prairie: daytime highs average 21.1°C and nights cool to about 11.2°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 47 mm of rain on roughly 9 days, which makes August a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 00 min on an average August day.
The nearest other city in this atlas is Prince George (290 km away). In August its highs average 22.3°C, 1.2°C warmer than Grande Prairie, with 41 mm of rain.
Among the 86 cities listed in Canada, Grande Prairie ranks 82nd of 86 for the warmest August highs and 7th of 86 for the driest August (rainfall, lowest first). The mean August high of those 86 cities is 23.8°C; Grande Prairie is 2.7°C cooler than that mean.
From August to September, average highs fall by 5.0°C to 16.1°C, and monthly rainfall falls from 47 mm to 40 mm.
The annual picture
August 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
Grande Prairie climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -8.1°C-15.8°C | -15.8°C | 28 | 7.7 | 7.88 h |
| February | -4.7°C-13.7°C | -13.7°C | 16 | 4.8 | 9.610 h |
| March | 0.3°C-9.7°C | -9.7°C | 21 | 6.1 | 11.812 h |
| April | 8.9°C-2.2°C | -2.2°C | 25 | 6.2 | 14.114 h |
| May | 15.9°C4.6°C | 4.6°C | 40 | 7.5 | 16.116 h |
| June | 19.6°C9.8°C | 9.8°C | 73 | 11.3 | 17.317 h |
| July | 21.8°C12.1°C | 12.1°C | 77 | 11.8 | 16.817 h |
| August, selected | 21.1°C11.2°C | 11.2°C | 47 | 8.9 | 15.015 h |
| September | 16.1°C6.6°C | 6.6°C | 40 | 7.7 | 12.813 h |
| October | 8.3°C-0.1°C | -0.1°C | 35 | 7.3 | 10.511 h |
| November | -1.5°C-8.7°C | -8.7°C | 31 | 8.3 | 8.48 h |
| December | -6.9°C-14.4°C | -14.4°C | 22 | 6.2 | 7.37 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
August in nearby cities
- Prince George in AugustCanada · 290 kmHigh 22.3°C · Low 11.5°C · 41 mm rain
- Edmonton in AugustCanada · 389 kmHigh 21.7°C · Low 12.1°C · 58 mm rain
- Sherwood Park in AugustCanada · 400 kmHigh 21.0°C · Low 11.6°C · 59 mm rain
- Red Deer in AugustCanada · 460 kmHigh 21.4°C · Low 11.2°C · 67 mm rain
- Kamloops in AugustCanada · 511 kmHigh 27.2°C · Low 15.3°C · 23 mm rain
- Airdrie in AugustCanada · 534 kmHigh 21.4°C · Low 10.3°C · 68 mm rain
- Calgary in AugustCanada · 555 kmHigh 22.3°C · Low 10.1°C · 63 mm rain
- Kelowna in AugustCanada · 589 kmHigh 27.8°C · Low 16.5°C · 25 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 Grande Prairie) is explained once on the Grande Prairie year overview and on the Sources, method and limits page.