
Reservoir · United States
Owasco Lake
Lake in New York, United States of America
- Area
- 26.6km²
- Max depth
- 54m
- Average depth
- 3.0m
- Elevation
- 214m a.s.l.
- Shoreline
- 40km
- Volume
- 0.079km³
Owasco Lake is a reservoir in United States. It covers 26.6 km². On average it is 3.0 m deep, and 54 m at its deepest point. Its surface lies 214 m above sea level.
Plan your visit
Stay, sail and get there
Some links above are affiliate links: if you book through them we may earn a commission, at no extra cost to you. It never changes what the data on this page says.
The water
How warm is Owasco Lake?
The water is warmest in August, around 23 °C at the surface, and coldest in January, around 0 °C. The surface averages 20 °C or more from July to September: comfortable for most swimmers.
The lake usually freezes over for about 78 days a year, from around 2 January to 20 March.
On the shore, afternoons reach 28 °C on average in July and -2 °C in January. The driest month is February (70 mm of rain), the wettest October (119 mm).
Average surface temperature measured by the Landsat 8 satellite between 2013 and 2021 at the point furthest from the shore (99 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 | — | -2 | -9 | 71 | 15 | 1.8 | 13 |
| February | Ice | — | -1 | -8 | 70 | 12 | 2.8 | 13 |
| March | Ice | — | 5 | -4 | 76 | 13 | 4.6 | 12 |
| April | 4 | 7 | 12 | 2 | 91 | 13 | 6.0 | 10 |
| May | 11 | 15 | 20 | 8 | 95 | 13 | 7.4 | 8 |
| June | 18 | 21 | 25 | 14 | 108 | 14 | 8.0 | 7 |
| July | 23 | 24 | 28 | 17 | 106 | 15 | 8.5 | 7 |
| August | 23 | 24 | 27 | 16 | 101 | 13 | 7.8 | 7 |
| September | 20 | 22 | 23 | 12 | 97 | 12 | 6.7 | 7 |
| October | 15 | 18 | 15 | 6 | 119 | 14 | 3.8 | 8 |
| November | 8 | 12 | 8 | 0 | 83 | 14 | 2.6 | 10 |
| December | 2 | 5 | 1 | -5 | 93 | 15 | 1.1 | 11 |
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 3 months before flowing out.
- Its catchment drains 510 km² of land.
- About 9.4 m³ of water flow out every second, on average.
Around the shore
What's around Owasco Lake
Counted within 1.5 km of the shoreline in OpenStreetMap, the map anyone can edit.
- 2beaches and swimming spots
Glenwood Beach
- —campsites
- —boat hire and water-sport clubs
- 8marinas and slipways
Emerson Park Boat Launch and 7 more
- —ferry piers
- —viewpoints
- —hotels, B&Bs and chalets
- —fishing spots
- —restaurants and cafés
Towns on the shore
- Melrose Park2,294 people
Nearest airport with scheduled flights: Syracuse Hancock International Airport (SYR), 43 km in a straight line.
Car hire at SYR airport (Syracuse)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 | -1.6 | -0.6 | 4.6 | 12.4 | 19.7 | 24.6 | 27.9 | 27.2 | 23.4 | 15.1 | 7.8 | 1.3 |
| 2020 | +2.9 | +0.8 | +3.4 | −2.2 | −1.8 | +1.4 | +2.4 | +1.0 | −0.1 | −0.2 | +3.1 | +0.6 |
| 2021 | +0.5 | −1.8 | +3.4 | +0.8 | −0.3 | +2.6 | −1.9 | +0.9 | −0.9 | +2.8 | −1.1 | +2.4 |
| 2022 | −2.0 | +1.1 | +1.5 | −1.0 | +2.1 | +0.3 | +1.0 | +1.0 | −1.9 | +0.6 | +1.6 | +0.3 |
| 2023 | +3.4 | +3.4 | −0.6 | +2.8 | −0.4 | −1.0 | +0.8 | −1.9 | +0.2 | +1.8 | −1.0 | +3.1 |
| 2024 | +1.5 | +4.0 | +2.8 | +1.3 | +1.9 | +1.6 | +1.5 | −1.1 | +0.5 | +1.6 | +1.7 | −0.1 |
| 2025 | −1.5 | −1.2 | +3.8 | +0.4 | −2.1 | +0.9 | +1.8 | +0.7 | +1.2 | +1.3 | −1.2 | −2.1 |
+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 (Q1339170) · 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.

