Climate averages 1991–2020
Grande Prairie weather
in May.
A mild, moderately wet month: the 5th warmest and the joint 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
May is a mild month in Grande Prairie: daytime highs average 15.9°C and nights cool to about 4.6°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 40 mm of rain on roughly 8 days, which makes May a moderately wet month (the joint 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 16 h 08 min on an average May day.
The nearest other city in this atlas is Prince George (290 km away). In May its highs average 16.8°C, 1.0°C warmer than Grande Prairie, with 40 mm of rain.
Among the 86 cities listed in Canada, Grande Prairie ranks 70th of 86 for the warmest May highs and joint 2nd of 86 for the driest May (rainfall, lowest first). The mean May high of those 86 cities is 17.0°C; Grande Prairie is 1.1°C cooler than that mean.
From May to June, average highs rise by 3.8°C to 19.6°C, and monthly rainfall rises from 40 mm to 73 mm.
The annual picture
May 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, selected | 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 | 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
May in nearby cities
- Prince George in MayCanada · 290 kmHigh 16.8°C · Low 5.2°C · 40 mm rain
- Edmonton in MayCanada · 389 kmHigh 16.2°C · Low 5.2°C · 53 mm rain
- Sherwood Park in MayCanada · 400 kmHigh 15.5°C · Low 4.7°C · 53 mm rain
- Red Deer in MayCanada · 460 kmHigh 15.5°C · Low 4.1°C · 63 mm rain
- Kamloops in MayCanada · 511 kmHigh 19.9°C · Low 8.2°C · 43 mm rain
- Airdrie in MayCanada · 534 kmHigh 15.0°C · Low 3.2°C · 75 mm rain
- Calgary in MayCanada · 555 kmHigh 15.7°C · Low 3.0°C · 72 mm rain
- Kelowna in MayCanada · 589 kmHigh 19.9°C · Low 8.5°C · 51 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.