Portland, Connecticut Climate
United States
Pop. 5,862 Elev. 27 m / 89 ft
TZ: America/New_York (UTC-4) ·
Portland sees warm summers peaking at 85°F (29°C) in July, and frigid winters that bottom out around 22°F (-6°C) in January. Humidity pushes the summer feels-like temperature to 94°F (34°C), while wind chill can drive winter lows to 14°F (-10°C). Precipitation occurs on roughly 64 days per year (38.4 in / 974 mm total), with snow on 7 days and 34 in (862 mm) of annual accumulation. The city averages 120 sunny days per year and around 34 thunderstorm days. Ocean water temperatures reach 76°F (24°C) in summer.
| Temperature | 85°F (29°C) high | 22°F (-5°C) low |
| Feels like | 94°F (34°C) high | 14°F (-10°C) low |
| Rain | 64 days | 38.4 in (974 mm) /yr |
| Snow | 7 days | 34.0 in (862 mm) /yr |
| Sky | 120 sunny | 34 stormy |
| Wind | 3.0 mph (1.3 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, Jun, Jul, Aug, Sep
Sky & Air by Month
Cloud cover (%)
42
Jan 66
Feb 58
Mar 68
Apr 75
May 65
Jun 60
Jul 45
Aug 52
Sep 43
Oct 50
Nov 54
Dec Humidity (%)
55
Jan 59
Feb 55
Mar 54
Apr 72
May 71
Jun 73
Jul 65
Aug 71
Sep 66
Oct 61
Nov 58
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 25 mi Bradley International Airport (BDL)
Ski resort 7 mi Powder Ridge Ski Area
National park 57 mi Connecticut River Greenway State Park
Mountain peak
(5,089 ft) 185 mi Mount Lincoln
Hospital 1 mi Middlesex Hospital
Hiking trail 3 mi
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 35°F 2°C | 22°F -5°C | 1.1 in 27 mm | 4.8 in121 mm | 16 |
| February | 38°F 4°C | 25°F -4°C | 1.5 in 38 mm | 17.7 in450 mm | 5 |
| March | 53°F 12°C | 35°F 2°C | 4.3 in 109 mm | 0.0 in1 mm | 9 |
| April | 62°F 16°C | 44°F 7°C | 3.7 in 95 mm | 1.3 in34 mm | 5 |
| May | 67°F 20°C | 52°F 11°C | 8.0 in 204 mm | — | 4 |
| June | 79°F 26°C | 62°F 17°C | 2.2 in 55 mm | — | 9 |
| July | 85°F 29°C | 69°F 20°C | 4.1 in 103 mm | — | 10 |
| August | 81°F 27°C | 61°F 16°C | 2.1 in 53 mm | — | 15 |
| September | 76°F 24°C | 57°F 14°C | 2.8 in 71 mm | — | 9 |
| October | 63°F 17°C | 47°F 9°C | 4.4 in 111 mm | — | 17 |
| November | 51°F 11°C | 37°F 3°C | 2.2 in 55 mm | 0.1 in2 mm | 13 |
| December | 38°F 3°C | 25°F -4°C | 2.0 in 52 mm | 10.1 in256 mm | 8 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 16 | 1 |
| February | 5 | 1 |
| March | 9 | 2 |
| April | 5 | 4 |
| May | 4 | 6 |
| June | 9 | 2 |
| July | 10 | 4 |
| August | 15 | 3 |
| September | 9 | 4 |
| October | 17 | 4 |
| November | 13 | 2 |
| December | 8 | 1 |
Water Temperatures Data
↑ See chart| Month | Ocean Avg High | Lake Avg High |
|---|---|---|
| January | 44°F 6°C | 36°F 2°C |
| February | 36°F 2°C | 33°F 1°C |
| March | 41°F 5°C | 38°F 3°C |
| April | 50°F 10°C | 46°F 8°C |
| May | 56°F 13°C | 56°F 13°C |
| June | 68°F 20°C | 67°F 19°C |
| July | 76°F 24°C | 77°F 25°C |
| August | 76°F 24°C | 74°F 23°C |
| September | 72°F 22°C | 70°F 21°C |
| October | 70°F 21°C | 62°F 17°C |
| November | 60°F 15°C | 51°F 11°C |
| December | 49°F 10°C | 40°F 5°C |