Stanstead, Canada experiences average highs of 11°C (52°F) and lows of 2°C (36°F) throughout the year. Rainfall is frequent, averaging about 14 rainy days per month. Average highs have stayed broadly stable across the available records.
Stanstead, Canada Weather & Climate 2026
Monthly climate averages for Stanstead, Canada. Based on 10-year ERA5 reanalysis data.
Climate Overview
Drier season: Jan–Dec 
Wetter season: Apr–Jul At-a-Glance Climate Summary
Live Weather & Air Quality
Key figures
Climate Score
4.2/10
Best: May, June, July, August, September
UV Index
4
Low
Temperature 11°C / 2°C
Feels Like 9°C / -1°C
Rainy Days 14
Rainfall 103 mm
Sunshine 8 h
Humidity 76%
Wind Speed 16 km/h
Dew Point 3°C
Snow Days 12 days
Frost Days 19 days
Hottest Month
25°C
July
Avg Low16°C
Rain15days
Coldest Month
-12°C
January
Avg High-4°C
Rain14days
Driest Month
9days
September
Avg High20°C
Avg Low12°C
Windiest Month
19 km/h
February (Gusts 45)
Worst Time to Visit
Consider avoiding January, February, November, December due to very cold temperatures, frequent rain.
Sun Position
Sunrise 05:02
Daylight 15.6h
Sunset 20:38
Live conditions—
Stanstead on the map · live conditions
Stanstead, Canada
- Continent
- Americas
- Country
- Canada
- City
- Stanstead
- Population
- 2.9K
- Coordinates
- 45.01°, -72.09°
Seasonal Breakdown
Spring
Mar–May
Avg High 10°C
Avg Low 0°C
Rain 14 days/mo
1/3 best months
Summer
Jun–Aug
Avg High 23°C
Avg Low 15°C
Rain 15 days/mo
3/3 best months
Autumn
Sep–Nov
Avg High 13°C
Avg Low 5°C
Rain 12 days/mo
1/3 best months
Winter
Dec–Feb
Avg High -2°C
Avg Low -11°C
Rain 14 days/mo
Climate Charts
Based on historical averages (2016–2025)
Monthly Temperatures
HighLowShaded bands show the typical range across the available yearly records.
Line chart showing monthly temperatures. Jan: -4°C / -12°C . Feb: -2°C / -11°C . Mar: 3°C / -6°C . Apr: 10°C / 0°C . May: 17°C / 7°C . Jun: 22°C / 13°C . Jul: 25°C / 16°C . Aug: 23°C / 15°C . Sep: 20°C / 12°C . Oct: 13°C / 6°C . Nov: 5°C / -2°C . Dec: -1°C / -9°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 82 mm. Feb: 78 mm. Mar: 90 mm. Apr: 108 mm. May: 101 mm. Jun: 129 mm. Jul: 126 mm. Aug: 115 mm. Sep: 85 mm. Oct: 125 mm. Nov: 99 mm. Dec: 95 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 79%. Feb: 75%. Mar: 72%. Apr: 70%. May: 71%. Jun: 75%. Jul: 79%. Aug: 79%. Sep: 79%. Oct: 79%. Nov: 79%. Dec: 78%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 17 km/h . Feb: 19 km/h . Mar: 19 km/h . Apr: 18 km/h . May: 16 km/h . Jun: 15 km/h . Jul: 13 km/h . Aug: 13 km/h . Sep: 14 km/h . Oct: 16 km/h . Nov: 18 km/h . Dec: 18 km/h .
Sunshine
Sunshine
Sunshine: Jan: 5h. Feb: 6h. Mar: 7h. Apr: 8h. May: 10h. Jun: 11h. Jul: 11h. Aug: 11h. Sep: 9h. Oct: 6h. Nov: 5h. Dec: 4h.
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 2. Feb: UV 3. Mar: UV 4. Apr: UV 5. May: UV 5. Jun: UV 6. Jul: UV 7. Aug: UV 6. Sep: UV 5. Oct: UV 3. Nov: UV 2. Dec: UV 2.
Monthly Daylight Hours
Daylight12h reference
Monthly Dew Point & Comfort
Dew Point Dry Comfortable Humid Muggy Oppressive
Snow Days
Snow DaysSnowfall
Snow Days: Jan: 20 days. Feb: 18 days. Mar: 15 days. Apr: 8 days. May: 1 days. Jun: 0 days. Jul: 0 days. Aug: 0 days. Sep: 0 days. Oct: 2 days. Nov: 13 days. Dec: 19 days.
Climate Trends
Average highs have stayed broadly stable across the available records. Average rainfall has remained broadly steady.
2016 to 2025
Avg high Avg rainfall
Climate summary
| Last 12 months | All years | |
|---|---|---|
| Hottest month | Jul 2025 · 25°C | Jul · 25°C |
| Coldest month | Jan 2025 · -14°C | Jan · -12°C |
| Wettest month | May 2025 · 158 mm | Jun · 129 mm |
| Windiest month | Mar 2025 · 21 km/h | Feb · 19 km/h |
Month-by-Month Weather Table
January
Poor 
February
Poor March
Poor April
Poor May best
Good June best
Good July best
Excellent August best
Excellent September best
Excellent October
Fair November
Poor December
Poor | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | -4°C / -12°C | -8°C / -17°C | 14days (82 mm) Wet | 4.9h Fair | 79% Humid | 1.8 Low | Poor | View Details |
| February | -2°C / -11°C | -6°C / -16°C | 13days (78 mm) Wet | 6h Fair | 75% Muggy | 2.9 Moderate | Poor | View Details |
| March | 3°C / -6°C | -1°C / -11°C | 14days (90 mm) Wet | 7.1h Good | 72% Muggy | 3.8 Moderate | Poor | View Details |
| April | 10°C / 0°C | 6°C / -4°C | 15days (108 mm) Wet | 7.9h Good | 70% Muggy | 4.9 Moderate | Poor | View Details |
| May best | 17°C / 7°C | 16°C / 5°C | 13days (101 mm) Wet | 9.6h Good | 71% Muggy | 5.4 High | Good | View Details |
| June best | 22°C / 13°C | 22°C / 12°C | 15days (129 mm) Wet | 10.6h Excellent | 75% Muggy | 6.2 High | Good | View Details |
| July best | 25°C / 16°C | 26°C / 17°C | 15days (126 mm) Wet | 11.4h Excellent | 79% Humid | 6.8 High | Excellent | View Details |
| August best | 23°C / 15°C | 24°C / 15°C | 14days (115 mm) Wet | 10.5h Excellent | 79% Humid | 5.9 High | Excellent | View Details |
| September best | 20°C / 12°C | 20°C / 11°C | 9days (85 mm) Wet | 8.9h Good | 79% Humid | 4.9 Moderate | Excellent | View Details |
| October | 13°C / 6°C | 11°C / 3°C | 14days (125 mm) Wet | 6.2h Fair | 79% Humid | 3.2 Moderate | Fair | View Details |
| November | 5°C / -2°C | 1°C / -6°C | 14days (99 mm) Wet | 4.9h Fair | 79% Humid | 1.9 Low | Poor | View Details |
| December | -1°C / -9°C | -5°C / -14°C | 14days (95 mm) Wet | 4.3h Fair | 78% Humid | 1.5 Low | Poor | View Details |
Compare Nearby City Climates
Frequently Asked Questions
The best months to visit Stanstead are May, June, July, August, September, when temperatures are comfortable and rainfall is at its lowest. This is based on 10-year climate averages for Stanstead, scoring temperature, rainfall, humidity, and sunshine hours.
The hottest month in Stanstead is July, with average daytime highs of 25°C (76°F). Plan outdoor activities for early morning or late afternoon if visiting during this period.
The coldest month in Stanstead is January, with average overnight lows of -12°C (10°F). Pack warm layers and expect shorter daylight hours during this period.
The wettest month in Stanstead is June, averaging 129mm of precipitation across 15 rainy days. An umbrella or waterproof jacket is essential.
The rainy season in Stanstead runs through April, June, July, January, with the heaviest rainfall in April. Based on 10-year averages for Stanstead.
Stanstead receives approximately 92 sunshine hours per year. The sunniest month is July with around 11 hours. Based on climate data for Stanstead.
The least favorable months to visit Stanstead are January, February, November, December, primarily due to very cold temperatures, frequent rain. For the best conditions, consider May, June, July, August, September instead.
The annual average UV index in Stanstead is 4, classified as moderate. Standard sun protection (sunscreen, hat) is recommended during prolonged outdoor exposure.
Average humidity in Stanstead is 76%, classified as humid. Humidity levels are generally comfortable and should not affect outdoor activities for most people.
Yes, Stanstead receives snow. Months with snowfall average 12 snow days and 26 cm (10 in) of accumulation, with about 19 frost days during winter.
Average wind speeds in Stanstead are 16 km/h (10 mph). The windiest month is February with peak winds reaching 19 km/h (12 mph) (gusts up to 45 km/h / 28 mph).
Stanstead averages 2 clear-sky days per month with overall cloud cover around 68%. The clearest skies occur in September.
The annual average dew point in Stanstead is 3°C (37°F), which feels dry and comfortable. Outdoor activities are comfortable year-round from a humidity standpoint.
Stanstead has a Warm-Summer Continental climate, classified as Dfb under the Köppen system. Continental climates experience extreme temperature ranges — hot summers and cold, snowy winters.
The 'feels like' temperature in Stanstead ranges from -1°C (30°F) to 9°C (48°F) on average. Wind chill makes winters feel noticeably colder than the actual temperature — layered clothing is recommended.
Yes, June is a great time to visit Stanstead. It earns a climate score of 7.4/10 with Good.
For June in Stanstead, pack Umbrella, Waterproof jacket, Waterproof shoes, Sunscreen (SPF 30+), Sunglasses. With average highs of 22°C (72°F) and 15 rainy days, these essentials will keep you comfortable.
Data Source
Climate data derived from ERA5 reanalysis (ECMWF), averaged over 2016–2025. Sea surface temperature from marine reanalysis data. Climate scores and seasonal estimates are computed by WorldStats.
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