Climate guideThirty-year normals for Belleville, Canada
Belleville climate by month
Warm-summer humid continental · DfbBest May–Jun · Sep
Annual mean8°day and night
Seasonal swing29°warmest vs coolest
Precipitation973 mm146 wet days a year
44.17° N, 77.38° WElevation 93 mUTC−4 · Eastern Daylight Time
When to goBelleville · weather score
Best timeMay–Jun · Sep
October: high / low15° / 4°
iSummary
What the weather is like
Belleville has a warm-summer humid continental climate (Köppen Dfb): warm summers, cold winters and precipitation in every season.
The warmest month is July, when afternoons average 28° and nights 16°. January is the coolest month, with highs of -2° and lows of -12°. The difference between the warmest and the coolest month is about 29°, a large swing typical of continental interiors.
About 973 mm of precipitation falls in an average year. December is the wettest month (86 mm, 15 wet days) and February the driest (71 mm, 10 wet days). Cloud cover ranges from 29% in July to 50% in December.
Compared with Ottawa, the capital, Belleville is 1.6° warmer on a July afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 28° · July
- Coldest nights
- -12° · January
- Wettest month
- December
- Driest month
- February
- Clearest skies
- July · 29% cloud
- Longest day
- 15 h 29 min
- Shortest day
- 8 h 54 min
iiCharts
Twelve months at a glance
Temperature and precipitation
Daily high/low range bars, monthly precipitation columnsTemperature curve
Average high, lowDaylight
Hours between sunrise and sunset on the 15th of each monthiiiData table
Climate normals month by month
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average high | -2° | 0° | 6° | 14° | 21° | 26° | 28° | 27° | 22° | 15° | 8° | 1° |
| Average low | -12° | -11° | -5° | 1° | 8° | 13° | 16° | 14° | 10° | 4° | -1° | -7° |
| Precipitation | 78 mm | 71 mm | 65 mm | 80 mm | 88 mm | 80 mm | 81 mm | 78 mm | 91 mm | 82 mm | 93 mm | 86 mm |
| Wet days (≥1 mm) | 10.8 | 9.5 | 10 | 11 | 11.8 | 12.8 | 14.5 | 13.2 | 11.3 | 13.2 | 13.2 | 15 |
| Cloud cover | 49% | 45% | 43% | 43% | 39% | 34% | 29% | 30% | 34% | 39% | 48% | 50% |
| Daylight | 9h 15 | 10h 29 | 11h 53 | 13h 27 | 14h 46 | 15h 29 | 15h 11 | 14h 02 | 12h 33 | 11h 02 | 9h 39 | 8h 54 |
| Month score | 25 | 29 | 29 | 46 | 68 | 63 | 53 | 61 | 72 | 47 | 19 | 17 |
ivMonth by month
Belleville in every month
January25
-2° / -12°
78 mm · 10.8 wet days
February29
0° / -11°
71 mm · 9.5 wet days
March29
6° / -5°
65 mm · 10 wet days
April46
14° / 1°
80 mm · 11 wet days
May68
21° / 8°
88 mm · 11.8 wet days
June63
26° / 13°
80 mm · 12.8 wet days
July53
28° / 16°
81 mm · 14.5 wet days
August61
27° / 14°
78 mm · 13.2 wet days
September72
22° / 10°
91 mm · 11.3 wet days
October47
15° / 4°
82 mm · 13.2 wet days
November19
8° / -1°
93 mm · 13.2 wet days
December17
1° / -7°
86 mm · 15 wet days