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Climate guideThirty-year normals for Saint-Eustache, Canada
Saint-Eustache climate by month
Warm-summer humid continental · DfbBest May–Jun · Sep
Annual mean7°day and night
Seasonal swing31°warmest vs coolest
Precipitation1,050 mm176 wet days a year
45.56° N, 73.91° WElevation 42 mUTC−4 · Eastern Daylight Time
When to goSaint-Eustache · weather score
Best timeMay–Jun · Sep
October: high / low14° / 5°
iSummary
What the weather is like
Saint-Eustache 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 27° and nights 17°. January is the coolest month, with highs of -4° and lows of -14°. The difference between the warmest and the coolest month is about 31°, a large swing typical of continental interiors.
About 1,050 mm of precipitation falls in an average year. December is the wettest month (86 mm, 19 wet days) and September the driest (93 mm, 11 wet days). Cloud cover ranges from 32% in July to 50% in November.
Compared with Ottawa, the capital, Saint-Eustache is 0.2° warmer on a July afternoon and receives more precipitation over the year.
Year in figures
- Hottest afternoons
- 27° · July
- Coldest nights
- -14° · January
- Wettest month
- December
- Driest month
- September
- Clearest skies
- July · 32% cloud
- Longest day
- 15 h 40 min
- Shortest day
- 8 h 43 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 | -4° | -3° | 3° | 12° | 20° | 25° | 27° | 26° | 22° | 14° | 6° | -1° |
| Average low | -14° | -12° | -6° | 1° | 8° | 14° | 17° | 16° | 11° | 5° | -2° | -9° |
| Precipitation | 77 mm | 65 mm | 66 mm | 87 mm | 90 mm | 102 mm | 94 mm | 96 mm | 93 mm | 98 mm | 96 mm | 86 mm |
| Wet days (≥1 mm) | 17.2 | 13.2 | 13.8 | 12.7 | 11.8 | 15.8 | 14 | 14.8 | 11.2 | 15.8 | 16.8 | 18.7 |
| Cloud cover | 48% | 45% | 44% | 44% | 41% | 37% | 32% | 32% | 37% | 41% | 50% | 50% |
| Daylight | 9h 06 | 10h 24 | 11h 52 | 13h 31 | 14h 54 | 15h 40 | 15h 21 | 14h 08 | 12h 34 | 10h 59 | 9h 31 | 8h 43 |
| Month score | 18 | 21 | 20 | 31 | 68 | 64 | 58 | 62 | 71 | 40 | 17 | 17 |
ivMonth by month
Saint-Eustache in every month
January18
-4° / -14°
77 mm · 17.2 wet days
February21
-3° / -12°
65 mm · 13.2 wet days
March20
3° / -6°
66 mm · 13.8 wet days
April31
12° / 1°
87 mm · 12.7 wet days
May68
20° / 8°
90 mm · 11.8 wet days
June64
25° / 14°
102 mm · 15.8 wet days
July58
27° / 17°
94 mm · 14 wet days
August62
26° / 16°
96 mm · 14.8 wet days
September71
22° / 11°
93 mm · 11.2 wet days
October40
14° / 5°
98 mm · 15.8 wet days
November17
6° / -2°
96 mm · 16.8 wet days
December17
-1° / -9°
86 mm · 18.7 wet days