St. Lawrence River 氣候 and Average 天氣
氣候 of St. Lawrence River: average temperatures, rainfall and seasons month by month.
氣候 in St. Lawrence River month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| 月份 | Avg high | Avg low | 雨fall | Rating |
|---|---|---|---|---|
| 一月 | -6° | -15° | 69 mm | ★★☆☆☆ |
| 二月 | -5° | -16° | 50 mm | ★★☆☆☆ |
| 三月 | 1° | -9° | 105 mm | ★★☆☆☆ |
| 四月 | 9° | -1° | 124 mm | ★★☆☆☆ |
| 五月 | 17° | 7° | 127 mm | ★★★☆☆ |
| 六月 | 23° | 12° | 176 mm | ★★★☆☆ |
| 七月 | 26° | 16° | 129 mm | ★★★★☆ |
| 八月 | 24° | 14° | 165 mm | ★★★☆☆ |
| 九月 | 20° | 10° | 45 mm | ★★★★☆ |
| 十月 | 14° | 5° | 90 mm | ★★★☆☆ |
| 十一月 | 4° | -3° | 90 mm | ★★☆☆☆ |
| 十二月 | -3° | -12° | 97 mm | ★☆☆☆☆ |
氣候 type: Subarctic. 來源： Open-Meteo archive (ERA5).
Recent extremes in St. Lawrence River
高est and lowest readings observed in the last 3 years of reanalysis data - not all-time records.
How St. Lawrence River compares，天氣為nearby places
Annual averages, and the difference against St. Lawrence River.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| Quebec City | 0 km | 6°C | about the same | 1267 mm |
| Baxter State Park | 203 km | -3°C | 8°C cooler | 1355 mm |
| 週一treal | 233 km | 8°C | +2°C warmer | 1076 mm |
| 週一treal-Trudeau International Airport | 246 km | 8°C | +3°C warmer | 1094 mm |
| 週一t-Tremblant National Park | 255 km | 4°C | 1°C cooler | 1298 mm |
最佳旅遊時間 St. Lawrence River
Go in 九月. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: 一月, 三月 and 十二月 - expect the least comfortable mix of heat, cold or rain.
What this means for St. Lawrence River
Today is much colder than average for 十月. The forecast high of 5°C is 8.8°C below the 14°C typical for this month.
雨 is very unlikely today - plans do not need a backup.
Overnight lows near -1°C mean ice is possible on bridges before dawn.
Northern Hemisphere, so peak summer falls in 六月至八月.
The gap between the warmest and coldest month averages 31°C.
What至pack, what至skip
- A warm mid-layer and gloves for early mornings and evenings
- A packable rain shell - 2 of the next 7 days carry a real chance of rain
- Avoid high-elevation trails without traction devices - frozen surfaces persist in shade all day.
- If your dates are flexible, avoid 一月, 三月 and 十二月 - historically the least comfortable months here.
摘要
St. Lawrence River is a river in Quebec. St. Lawrence River is a river known as the Great Lakes outlet至the Atlantic.
目前氣溫為0°C (33°F) in St. Lawrence River，天氣為晴朗. 體感溫度為-3°C. 今天氣溫介於-1°C至5°C. 降雨機率為0%. Sightseeing conditions score 7.3/10 - 良好.
最佳旅遊時間是St. Lawrence River is 九月. 氣候為subarctic. 一月, 三月 and 十二月 tend至be the least comfortable months. 七月 is the warmest month，天氣為average highs near 26°C, while 二月 is the coldest，天氣為lows near -16°C.
The closest major airport is 週一treal-Trudeau International Airport (YUL), about 246 km away. Nearby highlights include Baxter State Park, 週一t-Tremblant National Park, Mount Washington and Franconia Notch State Park.
簡單來說。 Today is much colder than average for 十月. The forecast high of 5°C is 8.8°C below the 14°C typical for this month. The best window至be outside is roughly 2 PM至5 PM, when temperature, rain chance and wind line up best. stargazing is the strongest bet in St. Lawrence River today at 10/10. Overnight lows near -1°C mean ice is possible on bridges before dawn.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Quick facts about St. Lawrence River
天氣 map for St. Lawrence River
Animated model layers. Pick a layer至load it.
Animated layers by 風y. For pin-level detail and nearby places, see the interactive map below.
Explore St. Lawrence River
Every topic we hold for this place, and the same topic for the places around it.
氣候 for related places
Frequently asked questions
Where is St. Lawrence River?
St. Lawrence River is a river in Quebec. Its coordinates are 46.8139, -71.208. It lies in 北美洲.
What is the weather like in St. Lawrence River現在?
It is currently 0°C (33°F)，天氣為晴朗. 濕度 is 74% and wind is 7 km/h.
When is the best time至visit St. Lawrence River?
九月 offer the most comfortable conditions in St. Lawrence River, which has a subarctic climate. 一月, 三月 and 十二月 are usually the hardest months for outdoor plans.
What time zone is St. Lawrence River in?
St. Lawrence River observes America/Toronto (UTC-04:00). The local time is 9:01 AM.
What is the nearest airport至St. Lawrence River?
The closest airports are 週一treal-Trudeau International Airport (YUL), 246 km away and Boston Logan International Airport (BOS), 495 km away.
What are the top things至do in St. Lawrence River?
Popular options include Baxter State Park, 週一t-Tremblant National Park, Mount Washington, Franconia Notch State Park and Acadia National Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (rivers) - coordinates, hierarchy and facts. |
|---|---|
| 預報 and observations | Open-Meteo (ECMWF and national models). |
| 空氣品質 and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| 氣候 averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated 十月 27, 2026 at 9:01 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
