Burlington weather by month
What a typical year looks like in Burlington, Iowa: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Burlington Municipal Airport, 4 km from Burlington; records cover 1897–2026.
The year at a glance
- Precipitation a year
- 37.9 in962 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 12
- First fall freeze
- Oct 17
- Heating degree days
- 5,820
- Cooling degree days
- 1,083
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −5°−21° (heating, 99%) and 95°35° (cooling, 1%).
Month by month
Burlington in January
Highs average 32°0° and lows 16°−9°, with 1.5 in37 mm of precipitation in a typical January.
- Record high
- 70°21° (1989)
- Record low
- −24°−31° (1957)
- Heating degree days
- 1260
- Cooling degree days
- 0
Burlington in February
Highs average 37°3° and lows 21°−6°, with 1.7 in43 mm of precipitation in a typical February.
- Record high
- 77°25° (2024)
- Record low
- −27°−33° (1905)
- Heating degree days
- 1012
- Cooling degree days
- 0
Burlington in March
Highs average 50°10° and lows 31°0°, with 2.4 in62 mm of precipitation in a typical March.
- Record high
- 88°31° (1907)
- Record low
- −13°−25° (1960)
- Heating degree days
- 757
- Cooling degree days
- 2
Burlington in April
Highs average 63°17° and lows 42°5°, with 3.9 in100 mm of precipitation in a typical April.
- Record high
- 93°34° (1930)
- Record low
- 11°−12° (1982)
- Heating degree days
- 391
- Cooling degree days
- 11
Burlington in May
Highs average 73°23° and lows 53°12°, with 4.9 in125 mm of precipitation in a typical May.
- Record high
- 103°39° (1934)
- Record low
- 26°−3° (1907)
- Heating degree days
- 142
- Cooling degree days
- 80
Burlington in June
Highs average 82°28° and lows 63°17°, with 4.9 in124 mm of precipitation in a typical June.
- Record high
- 105°41° (1934)
- Record low
- 39°4° (1913)
- Heating degree days
- 14
- Cooling degree days
- 238
Burlington in July
Highs average 85°30° and lows 66°19°, with 4 in102 mm of precipitation in a typical July.
- Record high
- 111°44° (1936)
- Record low
- 46°8° (1971)
- Heating degree days
- 2
- Cooling degree days
- 330
Burlington in August
Highs average 84°29° and lows 64°18°, with 3.8 in96 mm of precipitation in a typical August.
- Record high
- 110°43° (1934)
- Record low
- 41°5° (1950)
- Heating degree days
- 4
- Cooling degree days
- 275
Burlington in September
Highs average 78°25° and lows 56°13°, with 3.5 in90 mm of precipitation in a typical September.
- Record high
- 103°39° (1899)
- Record low
- 23°−5° (1899)
- Heating degree days
- 77
- Cooling degree days
- 127
Burlington in OctoberThis month
Highs average 65°18° and lows 44°7°, with 3.1 in78 mm of precipitation in a typical October.
- Record high
- 95°35° (1899)
- Record low
- 10°−12° (1925)
- Heating degree days
- 352
- Cooling degree days
- 19
Burlington in November
Highs average 50°10° and lows 32°0°, with 2.3 in58 mm of precipitation in a typical November.
- Record high
- 86°30° (1899)
- Record low
- −2°−19° (1898)
- Heating degree days
- 719
- Cooling degree days
- 1
Burlington in December
Highs average 37°3° and lows 22°−5°, with 1.9 in47 mm of precipitation in a typical December.
- Record high
- 73°23° (1998)
- Record low
- −22°−30° (1989)
- Heating degree days
- 1090
- Cooling degree days
- 0