This page is a single place to check Laval climate: monthly averages. Laval runs from -11.2 C in Jan to 21.7 C in Jul, a swing of 32.9 C. Rain is spread through the year, with Oct the wettest month at 3.67 mm/day and Jan the driest at 2.33 mm/day. Taken together that is roughly 1,083 mm of rain a year for the grid cell. Because each page is rebuilt independently, one unavailable upstream never takes the rest of the site down. Scroll for the month-by-month figures, or jump to a neighbouring location from the links below.
Annual mean temperature 6.4 C
Warmest month Jul (21.7 C)
Coldest month Jan (-11.2 C)
Wettest month Oct (3.67 mm/day)
All-time record high 36.6 C
All-time record low -41.5 C
Annual precipitation 1,084 mm / year
Coordinates 45.56995, -73.692
Population 438,366
Average monthly temperature and rainfall in Laval
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
-11.2
2.33
7.8
-41.5
Feb
-9.6
2.40
11.3
-36.0
Mar
-3.3
2.44
22.8
-32.8
Apr
5.4
3.16
26.0
-11.9
May
13.2
3.00
31.0
-2.9
Jun
18.5
3.62
32.8
3.1
Jul
21.7
3.07
36.6
8.6
Aug
21.1
3.15
34.7
7.7
Sep
16.9
2.93
34.2
0.7
Oct
8.8
3.67
26.4
-4.6
Nov
1.4
2.69
20.6
-20.9
Dec
-6.6
3.17
17.1
-34.8
What the Laval climate table shows
Values are multi-decadal climatological averages for the 45.56995, -73.692 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
Why do the numbers differ from a weather app?
An app shows one location on one day. These are long-run averages, so they smooth out single hot or cold spells.
How much rain is 3.67 mm/day in a month?
Rain is recorded as a daily mean, so 3.67 mm/day is roughly 112 mm across a 30-day month.