Climate averages 1991–2020
Longueuil weather
in June.
A warm, wet month: the 3rd warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
June is a warm month in Longueuil: daytime highs average 23.4°C and nights cool to about 14.3°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 108 mm of rain on roughly 12 days, which makes June a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 37 min on an average June day.
The nearest other city in this atlas is Mercier–Hochelaga-Maisonneuve (9 km away). In June its highs average 23.3°C, about as warm as Longueuil, with 108 mm of rain.
Among the 86 cities listed in Canada, Longueuil ranks joint 8th of 86 for the warmest June highs and joint 76th of 86 for the driest June (rainfall, lowest first). The mean June high of those 86 cities is 21.4°C; Longueuil is 1.9°C warmer than that mean.
From June to July, average highs rise by 2.4°C to 25.7°C, and monthly rainfall falls from 108 mm to 101 mm.
The annual picture
June 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
Longueuil climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -5.3°C-14.2°C | -14.2°C | 74 | 10.5 | 9.19 h |
| February | -3.5°C-12.8°C | -12.8°C | 60 | 9.3 | 10.310 h |
| March | 2.4°C-6.9°C | -6.9°C | 74 | 10.3 | 11.912 h |
| April | 10.7°C0.7°C | 0.7°C | 103 | 11.7 | 13.513 h |
| May | 18.5°C8.3°C | 8.3°C | 100 | 11.9 | 14.915 h |
| June, selected | 23.4°C14.3°C | 14.3°C | 108 | 12.2 | 15.616 h |
| July | 25.7°C17.3°C | 17.3°C | 101 | 12.8 | 15.315 h |
| August | 24.6°C16.5°C | 16.5°C | 102 | 11.6 | 14.114 h |
| September | 20.4°C12.3°C | 12.3°C | 99 | 10.2 | 12.613 h |
| October | 12.9°C5.9°C | 5.9°C | 112 | 11.5 | 11.011 h |
| November | 5.6°C-0.7°C | -0.7°C | 88 | 11.9 | 9.610 h |
| December | -1.3°C-8.5°C | -8.5°C | 85 | 11.7 | 8.89 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
June in nearby cities
- Mercier–Hochelaga-Maisonneuve in JuneCanada · 9 kmHigh 23.3°C · Low 14.3°C · 108 mm rain
- Montréal in JuneCanada · 9 kmHigh 22.1°C · Low 13.2°C · 108 mm rain
- Villeray–Saint-Michel–Parc-Extension in JuneCanada · 12 kmHigh 23.2°C · Low 13.9°C · 108 mm rain
- Laval in JuneCanada · 18 kmHigh 23.3°C · Low 14.1°C · 99 mm rain
- Terrebonne in JuneCanada · 25 kmHigh 23.3°C · Low 14.2°C · 101 mm rain
- Repentigny in JuneCanada · 25 kmHigh 23.3°C · Low 14.2°C · 98 mm rain
- Saint-Jean-sur-Richelieu in JuneCanada · 28 kmHigh 23.1°C · Low 14.0°C · 117 mm rain
- Pierrefonds-Roxboro in JuneCanada · 29 kmHigh 23.2°C · Low 14.4°C · 99 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 Longueuil) is explained once on the Longueuil year overview and on the Sources, method and limits page.
Montréal, Villeray–Saint-Michel–Parc-Extension and Mercier–Hochelaga-Maisonneuve lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.