Cohasset, Massachusetts Climate
United States
Pop. 7,388 Elev. 9 m / 30 ft
TZ: America/New_York (UTC-4) ·
Summers in Cohasset are mild, with July highs around 74°F (23°C), while winters are cold with February lows of 27°F (-3°C). Wind chill can push winter lows to 16°F (-9°C). Expect around 59 rainy days annually (42.1 in / 1070 mm total), with snow on 6 days and 34 in (859 mm) of annual accumulation. The city averages 130 sunny days per year. Ocean water temperatures reach 69°F (20°C) in summer.
| Temperature | 74°F (23°C) high | 27°F (-3°C) low |
| Feels like | 16°F (-9°C) low | |
| Rain | 59 days | 42.1 in (1070 mm) /yr |
| Snow | 6 days | 33.8 in (859 mm) /yr |
| Sky | 130 sunny | 17 stormy |
| Wind | 5.6 mph (2.5 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Jun, Jul, Aug, Sep
Sky & Air by Month
Cloud cover (%)
44
Jan 61
Feb 63
Mar 65
Apr 75
May 61
Jun 55
Jul 44
Aug 54
Sep 46
Oct 47
Nov 58
Dec Humidity (%)
61
Jan 68
Feb 71
Mar 72
Apr 83
May 84
Jun 84
Jul 77
Aug 83
Sep 73
Oct 68
Nov 68
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 13 mi Boston Logan International Airport (BOS)
Ski resort 11 mi Heavenly Hill
National park 91 mi Connecticut River Greenway State Park
Mountain peak
(5,460 ft) 141 mi Boott Spur
Hospital 10 mi Pembroke Hospital
Hiking trail 10 mi Indian Head River Trail
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 36°F 2°C | 27°F -3°C | 1.6 in 41 mm | 5.5 in139 mm | 15 |
| February | 37°F 3°C | 27°F -3°C | 3.1 in 78 mm | 18.1 in459 mm | 9 |
| March | 45°F 7°C | 36°F 2°C | 5.0 in 128 mm | 0.0 in1 mm | 8 |
| April | 51°F 11°C | 43°F 6°C | 5.0 in 126 mm | 2.1 in54 mm | 7 |
| May | 58°F 14°C | 51°F 11°C | 5.7 in 145 mm | — | 4 |
| June | 67°F 19°C | 60°F 16°C | 2.8 in 70 mm | — | 9 |
| July | 74°F 23°C | 67°F 20°C | 3.0 in 77 mm | — | 11 |
| August | 71°F 21°C | 65°F 18°C | 1.3 in 32 mm | — | 16 |
| September | 67°F 20°C | 62°F 17°C | 2.8 in 72 mm | — | 11 |
| October | 60°F 15°C | 54°F 12°C | 5.3 in 134 mm | — | 17 |
| November | 50°F 10°C | 42°F 6°C | 2.8 in 70 mm | 0.0 in1 mm | 14 |
| December | 40°F 4°C | 30°F -1°C | 3.8 in 96 mm | 8.1 in205 mm | 9 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 15 | 1 |
| February | 9 | 1 |
| March | 8 | 1 |
| April | 7 | 2 |
| May | 4 | 2 |
| June | 9 | 1 |
| July | 11 | 2 |
| August | 16 | 0 |
| September | 11 | 3 |
| October | 17 | 0 |
| November | 14 | 2 |
| December | 9 | 2 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 44°F 7°C | 34°F 1°C |
| February | 39°F 4°C | 33°F 1°C |
| March | 41°F 5°C | 39°F 4°C |
| April | 47°F 8°C | 47°F 8°C |
| May | 54°F 12°C | 57°F 14°C |
| June | 66°F 19°C | 66°F 19°C |
| July | 68°F 20°C | 73°F 23°C |
| August | 69°F 20°C | 69°F 21°C |
| September | 65°F 19°C | 65°F 18°C |
| October | 63°F 17°C | 56°F 13°C |
| November | 55°F 13°C | 44°F 6°C |
| December | 48°F 9°C | 35°F 2°C |