Mystic, Connecticut Climate
United States
Pop. 4,205 Elev. 6 m / 20 ft
TZ: America/New_York (UTC-4) ·
Mystic has mild summers with average highs of 76°F (24°C) in July, and cold winters averaging 28°F (-2°C) in January. Wind chill can push winter lows to 18°F (-8°C). Rain falls on about 58 days per year (37.5 in / 952 mm total), with snow on 4 days and 25 in (638 mm) of annual accumulation. The city averages 127 sunny days per year and around 24 thunderstorm days. Ocean water temperatures reach 71°F (22°C) in summer.
| Temperature | 76°F (24°C) high | 28°F (-2°C) low |
| Feels like | 18°F (-8°C) low | |
| Rain | 58 days | 37.5 in (952 mm) /yr |
| Snow | 4 days | 25.1 in (638 mm) /yr |
| Sky | 127 sunny | 24 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, Oct
Sky & Air by Month
Cloud cover (%)
46
Jan 65
Feb 56
Mar 65
Apr 71
May 62
Jun 55
Jul 43
Aug 52
Sep 43
Oct 49
Nov 56
Dec Humidity (%)
61
Jan 67
Feb 69
Mar 69
Apr 81
May 82
Jun 83
Jul 74
Aug 76
Sep 69
Oct 65
Nov 65
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 8 mi Westerly State Airport (WST)
Ski resort 25 mi Yawgoo Valley Ski Area & Water Park
National park 79 mi Connecticut River Greenway State Park
Mountain peak
(5,089 ft) 194 mi Mount Lincoln
Hospital 1 mi Masonicare at Mystic
Hiking trail 2 mi
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 36°F 2°C | 28°F -2°C | 1.4 in 36 mm | 3.1 in80 mm | 15 |
| February | 38°F 3°C | 29°F -1°C | 2.6 in 67 mm | 12.6 in319 mm | 5 |
| March | 46°F 8°C | 38°F 3°C | 4.7 in 118 mm | 0.3 in8 mm | 10 |
| April | 52°F 11°C | 45°F 7°C | 3.9 in 98 mm | 0.0 in1 mm | 7 |
| May | 59°F 15°C | 53°F 11°C | 6.7 in 169 mm | — | 3 |
| June | 69°F 20°C | 62°F 17°C | 1.9 in 48 mm | — | 9 |
| July | 76°F 24°C | 70°F 21°C | 2.6 in 66 mm | — | 11 |
| August | 73°F 23°C | 66°F 19°C | 2.1 in 53 mm | — | 17 |
| September | 71°F 22°C | 64°F 18°C | 2.3 in 57 mm | — | 11 |
| October | 62°F 17°C | 55°F 13°C | 4.0 in 102 mm | — | 18 |
| November | 52°F 11°C | 44°F 7°C | 2.7 in 68 mm | 0.0 in0 mm | 13 |
| December | 41°F 5°C | 31°F 0°C | 2.8 in 71 mm | 9.1 in230 mm | 8 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 15 | 1 |
| February | 5 | 1 |
| March | 10 | 1 |
| April | 7 | 3 |
| May | 3 | 5 |
| June | 9 | 1 |
| July | 11 | 2 |
| August | 17 | 1 |
| September | 11 | 2 |
| October | 18 | 4 |
| November | 13 | 2 |
| December | 8 | 1 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 46°F 8°C | 32°F 0°C |
| February | 39°F 4°C | 32°F 0°C |
| March | 43°F 6°C | 38°F 3°C |
| April | 48°F 9°C | 46°F 8°C |
| May | 55°F 13°C | 57°F 14°C |
| June | 65°F 18°C | 66°F 19°C |
| July | 71°F 22°C | 76°F 25°C |
| August | 71°F 22°C | 71°F 22°C |
| September | 70°F 21°C | 65°F 18°C |
| October | 69°F 21°C | 57°F 14°C |
| November | 60°F 16°C | 43°F 6°C |
| December | 50°F 10°C | 33°F 1°C |