
Glacial lake · Canada · United States
Lake Memphremagog
Glacial lake in Quebec, Canada and Vermont, United States of America
- Area
- 90.7km²
- Max depth
- 107m
- Average depth
- 37m
- Elevation
- 205m a.s.l.
- Shoreline
- 149km
- Volume
- 3.3km³
Lake Memphremagog is a glacial lake in Canada. It covers 90.7 km². On average it is 37 m deep, and 107 m at its deepest point. Its surface lies 205 m above sea level.
Plan your visit
Stay, sail and get there
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The water
How warm is Lake Memphremagog?
The water is warmest in July, around 22 °C at the surface, and coldest in January, around 0 °C. The surface averages 20 °C or more from July to August: comfortable for most swimmers.
The lake usually freezes over for about 127 days a year, from around 6 December to 11 April.
On the shore, afternoons reach 24 °C on average in July and -6 °C in January. The driest month is February (64 mm of rain), the wettest June (125 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (105 readings). Shallow bays and beaches are often warmer.
From above
The whole lake from space
Month by month
The year at the lake, month by month
Not a forecast: these are averages over many years. Water is the 2013–2021 average; air, rain, sun and wind are the 1991–2020 average.
Water: 2013–2021 averageClimate: 1991–2020 average
| Month | Water°C | Water high°C | Air high°C | Air low°C | Rainmm | Rainy daysdays | Sunh/day | Windkm/h |
|---|---|---|---|---|---|---|---|---|
| January | Ice | — | -6 | -14 | 64 | 16 | 3.3 | 11 |
| February | Ice | — | -4 | -14 | 64 | 14 | 4.8 | 12 |
| March | Ice | — | 1 | -8 | 75 | 15 | 5.9 | 12 |
| April | 2 | 6 | 9 | -1 | 89 | 15 | 6.1 | 10 |
| May | 10 | 15 | 17 | 6 | 104 | 17 | 6.8 | 8 |
| June | 18 | 21 | 22 | 12 | 125 | 18 | 7.6 | 7 |
| July | 22 | 23 | 24 | 15 | 113 | 20 | 8.0 | 6 |
| August | 22 | 23 | 24 | 14 | 111 | 18 | 7.5 | 6 |
| September | 19 | 21 | 20 | 10 | 93 | 15 | 6.5 | 7 |
| October | 13 | 16 | 12 | 3 | 121 | 16 | 3.8 | 8 |
| November | 5 | 9 | 5 | -3 | 83 | 16 | 2.6 | 9 |
| December | Ice | — | -2 | -10 | 91 | 17 | 1.9 | 10 |
Water: LakeTEMP (Landsat 8, 2013–2021). Air, rain, sun and wind: NASA POWER, 1991–2020 averages. A rainy day has at least 1 mm of rain. Sunshine hours are derived from measured solar radiation.
Size & depth
How big, how deep
- On average, water stays in the lake for about 2.6 years before flowing out.
- Its catchment drains 1,752 km² of land.
- About 40 m³ of water flow out every second, on average.
- Its shoreline is 4.4 times longer than a circle of the same area: plenty of bays and inlets.
Around the shore
What's around Lake Memphremagog
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- 15beaches and swimming spots
Plage municipale, Plage des cantons, Plage de Mansonville, Plage Weir, Parcours de natation en eau libre and 10 more
- 3campsites
Camping du parc Weir, Camping Mount Owl Head
- 3boat hire and water-sport clubs
Club de voile Memphrémagog, Vie de Plein air, Expédition Fish-ON
- 34marinas and slipways
Boat Ramp, Snug Harbour, Canoe Kayak, Marina no 1, Marina no 2 and 29 more
- 1ferry piers
Croisières Memphrémagog
- 10viewpoints
- 16hotels, B&Bs and chalets
Auberge McGowan, Auberge du Grand Lac, Motel de l'Outlet, Gîte Amour et Amitié B&B, A Tout Venant B&B and 11 more
- —fishing spots
- 27restaurants and cafés
Towns on the shore
- Magog15,550 people
- Newport4,442 people
Nearest airport with scheduled flights: Patrick Leahy Burlington International Airport (BTV), 95 km in a straight line.
Car hire at BTV airport (Burlington)Discover Cars · Affiliate linkOpenStreetMap is built by volunteers: when a number is low, it may just mean nobody has mapped it yet.
Recent years
How each month compared
Afternoon high on the shore. The first row is the reference, the 1991–2020 average in °C; the years below show the difference from it: warmer in orange, cooler in blue.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1991–2020 average | -5.5 | -4.1 | 1.2 | 9.3 | 17.2 | 21.7 | 24.4 | 23.5 | 20.0 | 12.0 | 4.6 | -2.2 |
| 2020 | +2.5 | +1.6 | +2.9 | −2.0 | −0.9 | +1.3 | +1.7 | −0.3 | −0.5 | −0.4 | +2.3 | +2.8 |
| 2021 | +0.6 | −0.6 | +2.9 | +2.0 | +0.5 | +2.2 | −1.7 | +2.4 | +0.6 | +3.3 | +0.2 | +2.2 |
| 2022 | −1.7 | +1.6 | +1.3 | ±0.0 | +3.0 | −0.2 | +0.5 | +1.4 | −0.9 | +2.5 | +2.2 | +1.7 |
| 2023 | +3.3 | +2.4 | +0.5 | +2.4 | +0.2 | −0.1 | +0.9 | −1.2 | +1.4 | +2.2 | −1.6 | +3.1 |
| 2024 | +2.0 | +3.4 | +2.5 | +1.1 | +2.1 | +1.7 | +1.7 | ±0.0 | +1.2 | +1.5 | +1.9 | ±0.0 |
| 2025 | −1.2 | −1.5 | +2.9 | +1.1 | −0.1 | +1.6 | +1.4 | +0.1 | +0.8 | +1.3 | −2.3 | −1.9 |
+1 warmer than usual −1 cooler than usual
Nearby
More lakes nearby
About these numbers
| Outline, area, depth, volume | HydroLAKES v1.0 (Messager et al. 2016) · CC BY 4.0 |
|---|---|
| Water temperature and ice | LakeTEMP v1 (Korver et al. 2024), Landsat 8 2013–2021 · CC BY 4.0 |
| Air, rain, sun, wind | NASA POWER, 1991–2020 · public domain |
| Names and description | Wikidata (Q595625) · CC0 |
| Around the shore | © OpenStreetMap contributors · ODbL |
| Images | EOX Sentinel-2 cloudless 2016 · CC BY 4.0; Wikimedia Commons |
Every figure is an average or a count from a public dataset. Licences and methods: data sources.

