If you only need Gatineau climate: monthly averages, the figures and table here are the whole story. Gatineau runs from -11.3 C in Jan to 20.6 C in Jul, a swing of 31.9 C. Rain is spread through the year, with Jun the wettest month at 3.46 mm/day and Feb the driest at 1.96 mm/day. Taken together that is roughly 979 mm of rain a year for the grid cell. Values come from a public open API; a successful result is cached so a later outage never blanks the page. The table underneath carries the per-month breakdown; the related pages cover the same dataset nearby.
Annual mean temperature 5.8 C
Warmest month Jul (20.6 C)
Coldest month Jan (-11.3 C)
Wettest month Jun (3.46 mm/day)
All-time record high 36.0 C
All-time record low -39.9 C
Annual precipitation 982 mm / year
Coordinates 45.47723, -75.70164
Population 300,045
Average monthly temperature and rainfall in Gatineau
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
-11.3
1.98
11.2
-39.9
Feb
-10.1
1.96
10.5
-37.7
Mar
-3.7
2.08
25.3
-31.3
Apr
5.0
2.84
26.8
-14.1
May
12.6
2.75
30.8
-4.4
Jun
17.8
3.46
33.4
0.9
Jul
20.6
3.17
36.0
7.7
Aug
19.7
2.84
34.3
6.5
Sep
15.7
2.91
33.3
-1.1
Oct
8.1
3.20
27.0
-5.8
Nov
1.0
2.44
20.0
-19.0
Dec
-6.8
2.59
16.6
-35.2
What the Gatineau climate table shows
Values are multi-decadal climatological averages for the 45.47723, -75.70164 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
Does Gatineau get the same every year?
Close to it. Averaging decades smooths variation, so treat these as typical rather than guaranteed.