Middletown weather by month
What a typical year looks like in Middletown, Connecticut: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at HARTFORD BRAINARD FIELD, 21 km from Middletown; records cover 1904–2026.
The year at a glance
- Precipitation a year
- 42.8 in1088 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 13
- First fall freeze
- Oct 19
- Heating degree days
- 5,619
- Cooling degree days
- 914
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 3°−16° (heating, 99%) and 94°34° (cooling, 1%).
Month by month
Middletown in January
Highs average 37°3° and lows 20°−6°, with 2.9 in75 mm of precipitation in a typical January.
- Record high
- 71°22° (2007)
- Record low
- −17°−27° (1961)
- Heating degree days
- 1130
- Cooling degree days
- 0
Middletown in February
Highs average 40°4° and lows 22°−5°, with 2.6 in65 mm of precipitation in a typical February.
- Record high
- 74°23° (1985)
- Record low
- −24°−31° (1943)
- Heating degree days
- 958
- Cooling degree days
- 0
Middletown in March
Highs average 48°9° and lows 30°−1°, with 3.5 in89 mm of precipitation in a typical March.
- Record high
- 86°30° (1945)
- Record low
- −4°−20° (1948)
- Heating degree days
- 819
- Cooling degree days
- 0
Middletown in April
Highs average 60°16° and lows 40°4°, with 3.8 in96 mm of precipitation in a typical April.
- Record high
- 94°34° (2002)
- Record low
- 8°−13° (1997)
- Heating degree days
- 454
- Cooling degree days
- 6
Middletown in May
Highs average 71°22° and lows 50°10°, with 3.4 in87 mm of precipitation in a typical May.
- Record high
- 99°37° (1996)
- Record low
- 20°−7° (1997)
- Heating degree days
- 183
- Cooling degree days
- 44
Middletown in June
Highs average 80°26° and lows 60°15°, with 3.9 in99 mm of precipitation in a typical June.
- Record high
- 100°38° (1952)
- Record low
- 30°−1° (1997)
- Heating degree days
- 27
- Cooling degree days
- 168
Middletown in July
Highs average 85°29° and lows 66°19°, with 3.9 in98 mm of precipitation in a typical July.
- Record high
- 103°39° (2011)
- Record low
- 41°5° (1984)
- Heating degree days
- 1
- Cooling degree days
- 316
Middletown in August
Highs average 83°28° and lows 64°18°, with 3.5 in88 mm of precipitation in a typical August.
- Record high
- 103°39° (2001)
- Record low
- 38°3° (1940)
- Heating degree days
- 3
- Cooling degree days
- 270
Middletown in September
Highs average 76°24° and lows 56°13°, with 4 in101 mm of precipitation in a typical September.
- Record high
- 101°38° (1953)
- Record low
- 29°−2° (1957)
- Heating degree days
- 76
- Cooling degree days
- 100
Middletown in OctoberThis month
Highs average 64°18° and lows 44°7°, with 4.2 in107 mm of precipitation in a typical October.
- Record high
- 90°32° (1908)
- Record low
- 16°−9° (1996)
- Heating degree days
- 351
- Cooling degree days
- 10
Middletown in November
Highs average 52°11° and lows 35°1°, with 3.4 in87 mm of precipitation in a typical November.
- Record high
- 83°28° (1950)
- Record low
- 5°−15° (1996)
- Heating degree days
- 650
- Cooling degree days
- 0
Middletown in December
Highs average 42°5° and lows 26°−3°, with 3.8 in95 mm of precipitation in a typical December.
- Record high
- 75°24° (1998)
- Record low
- −18°−28° (1917)
- Heating degree days
- 967
- Cooling degree days
- 0