Middletown, Connecticut Climate by Month
Middletown, Connecticut, United States
Warm summers and cold winters, with rain spread through the year.
Middletown has warm summers and cold winters, with rain spread through the year. Expect highs of 85°F (29°C) in July and 37°F (3°C) in January, with the coldest nights (January) near 21°F (-6°C). It gets 47 in (1194 mm) of rain a year, spread across the months.
- Warmest month
- 85°F(29°C)
- Average high, July
- Coldest nights
- 21°F(-6°C)
- Average low, January
- Rain per year
- 47 in(1194 mm)
- No clear rainy season
- Humidity
- 69%
- Sunniest: July
Best and worst months in Middletown
Best for weatherThe most comfortable weather comes in September, with highs around 76°F (24°C) and about 4.0 in (102 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 37°F (3°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)
Middletown weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 37°F(3°C) | 21°F(-6°C) | 3.5 in(88 mm) | 74% | 1.7 |
| FebFebruary | 39°F(4°C) | 22°F(-6°C) | 3.2 in(82 mm) | 69% | 2.6 |
| MarMarch | 48°F(9°C) | 29°F(-2°C) | 4.1 in(104 mm) | 63% | 3.5 |
| AprApril | 59°F(15°C) | 38°F(4°C) | 4.2 in(106 mm) | 60% | 4.5 |
| MayMay | 70°F(21°C) | 48°F(9°C) | 3.7 in(95 mm) | 64% | 5.2 |
| JunJune | 79°F(26°C) | 58°F(14°C) | 4.4 in(111 mm) | 67% | 5.6 |
| JulJuly | 85°F(29°C) | 63°F(17°C) | 4.0 in(102 mm) | 70% | 5.8 |
| AugAugust | 83°F(28°C) | 62°F(17°C) | 3.5 in(90 mm) | 69% | 5.2 |
| SepSeptemberBest | 76°F(24°C) | 55°F(13°C) | 4.0 in(102 mm) | 75% | 4.0 |
| OctOctober | 64°F(18°C) | 43°F(6°C) | 4.3 in(109 mm) | 71% | 2.7 |
| NovNovember | 53°F(12°C) | 35°F(2°C) | 3.7 in(95 mm) | 72% | 1.9 |
| DecDecember | 43°F(6°C) | 26°F(-3°C) | 4.3 in(110 mm) | 73% | 1.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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