Everything below is collected in one spot so you do not have to cross-check Halifax climate: monthly averages by hand. The gap between Jan and Aug is 21.3 C here: -2.9 C against 18.4 C. No month dominates: the wettest is Dec at 4.56 mm/day, the driest Jul at 2.75 mm/day. Taken together that is roughly 1,299 mm of rain a year for the grid cell. The build runs on a schedule and caches the last good response, so the numbers stay put even when the upstream API is having a bad day. Exact monthly values are in the table; links below cover adjacent locations and years.
Annual mean temperature 7.4 C
Warmest month Aug (18.4 C)
Coldest month Feb (-2.9 C)
Wettest month Dec (4.56 mm/day)
All-time record high 28.4 C
All-time record low -19.0 C
Annual precipitation 1,299 mm / year
Coordinates 44.64269, -63.57688
Population 471,559
Average monthly temperature and rainfall in Halifax
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
-2.9
3.44
11.3
-19.0
Feb
-2.9
3.69
10.4
-18.2
Mar
-0.3
3.25
17.1
-14.6
Apr
3.8
3.49
15.9
-7.2
May
8.4
3.22
21.8
-1.2
Jun
13.2
3.63
25.4
1.9
Jul
17.6
2.75
26.0
9.9
Aug
18.4
2.91
27.4
10.1
Sep
15.8
3.23
28.4
6.2
Oct
11.0
4.36
21.5
0.4
Nov
5.7
4.20
17.2
-9.3
Dec
0.8
4.56
14.1
-14.0
What the Halifax climate table shows
Values are multi-decadal climatological averages for the 44.64269, -63.57688 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
How much rain is 4.56 mm/day in a month?
Rain is recorded as a daily mean, so 4.56 mm/day is roughly 139 mm across a 30-day month.
Does Halifax get the same every year?
Close to it. Averaging decades smooths variation, so treat these as typical rather than guaranteed.