New London Climate by Month
New London, Connecticut, United States
Warm summers and cold winters, with rain spread through the year.
New London has warm summers and cold winters, with rain spread through the year. Expect highs of 82°F (28°C) in July and 38°F (4°C) in January, with the coldest nights (January) near 21°F (-6°C). About 49 in (1248 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 82°F(28°C)
- Average high, July
- Coldest nights
- 21°F(-6°C)
- Average low, January
- Rain per year
- 49 in(1248 mm)
- No clear rainy season
- Humidity
- 71%
- Sunniest: July
Best and worst months in New London
Best for weatherJune and September are the best time for weather in New London: highs near 76°F (24°C) and about 4.1 in (105 mm) of rain a month.
Least pleasantJanuary and February are the least pleasant; January is the coldest, with highs of only 38°F (4°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in September.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
New London weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 38°F(4°C) | 21°F(-6°C) | 3.8 in(97 mm) | 71% | 1.7 |
| FebFebruary | 40°F(5°C) | 22°F(-5°C) | 3.4 in(86 mm) | 68% | 2.6 |
| MarMarch | 47°F(9°C) | 29°F(-1°C) | 4.7 in(120 mm) | 64% | 3.5 |
| AprApril | 57°F(14°C) | 38°F(4°C) | 4.3 in(109 mm) | 62% | 4.6 |
| MayMay | 68°F(20°C) | 48°F(9°C) | 3.4 in(87 mm) | 67% | 5.2 |
| JunJuneBest | 77°F(25°C) | 57°F(14°C) | 4.1 in(103 mm) | 76% | 5.7 |
| JulJuly | 82°F(28°C) | 64°F(18°C) | 3.6 in(91 mm) | 76% | 5.8 |
| AugAugust | 82°F(28°C) | 63°F(17°C) | 4.1 in(104 mm) | 74% | 5.2 |
| SepSeptemberBest | 75°F(24°C) | 56°F(13°C) | 4.2 in(107 mm) | 74% | 4.0 |
| OctOctober | 65°F(18°C) | 44°F(7°C) | 4.7 in(119 mm) | 76% | 2.8 |
| NovNovember | 54°F(12°C) | 36°F(2°C) | 4.2 in(106 mm) | 69% | 1.9 |
| DecDecember | 44°F(7°C) | 28°F(-2°C) | 4.7 in(119 mm) | 70% | 1.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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