Climate averages 1991–2020
Longueuil weather
in April.
A cool, wet month: the 7th warmest and the 10th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cool month in Longueuil: daytime highs average 10.7°C and nights cool to about 0.7°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 103 mm of rain on roughly 12 days, which makes April a wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 29 min on an average April day.
The nearest other city in this atlas is Mercier–Hochelaga-Maisonneuve (9 km away). In April its highs average 10.6°C, about as warm as Longueuil, with 103 mm of rain.
Among the 86 cities listed in Canada, Longueuil ranks joint 33rd of 86 for the warmest April highs and joint 66th of 86 for the driest April (rainfall, lowest first). The mean April high of those 86 cities is 10.3°C; Longueuil is 0.3°C warmer than that mean.
From April to May, average highs rise by 7.8°C to 18.5°C, and monthly rainfall falls from 103 mm to 100 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Mercier–Hochelaga-Maisonneuve in AprilCanada · 9 kmHigh 10.6°C · Low 0.7°C · 103 mm rain
- Montréal in AprilCanada · 9 kmHigh 9.5°C · Low -0.4°C · 103 mm rain
- Villeray–Saint-Michel–Parc-Extension in AprilCanada · 12 kmHigh 10.4°C · Low 0.2°C · 103 mm rain
- Laval in AprilCanada · 18 kmHigh 10.5°C · Low 0.5°C · 102 mm rain
- Terrebonne in AprilCanada · 25 kmHigh 10.5°C · Low 0.6°C · 103 mm rain
- Repentigny in AprilCanada · 25 kmHigh 10.5°C · Low 0.6°C · 102 mm rain
- Saint-Jean-sur-Richelieu in AprilCanada · 28 kmHigh 10.7°C · Low 0.7°C · 99 mm rain
- Pierrefonds-Roxboro in AprilCanada · 29 kmHigh 10.1°C · Low 0.8°C · 102 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.