Burlington climate — normals and trends
Burlington (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 10.8 °C and it receives 915 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (24.4 °C on average) and the coldest is January (-4.8 °C). Rainfall peaks in May.
Burlington averages 112 frost days, 38 hot days (≥ 30 °C) and 109 rainy days per year.
Burlington has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 123 to 101 per year over the period.
The hottest day of the period reached 39.6 °C (on 7 July 2012) and the coldest -33.6 °C (on 3 February 1996).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
BurlingtonIowa
- coords
- 40.81°, -91.11°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.8°C
Average daily high
15.7°C
Average daily low
6.1°C
Annual rainfall
915mm
Sunshine / day
9.0h
Mean relative humidity
70%
Average peak wind
19.2km/h
Seasonal range
29.2°C
Frost days (< 0 °C)
112 d/yr
Hot days (≥ 30 °C)
38 d/yr
Rainy days (≥ 1 mm)
109 d/yr
Annual snowfall
57.8 cm
Average feels-like high
14.0 °C
Average feels-like low
3.4 °C
Average peak gust
37.9 km/h
Tropical nights (≥ 20 °C)
40 d/yr
Solar radiation
15.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.33 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
39.6 °C
7 July 2012
Coldest day
-33.6 °C
3 February 1996
Wettest day
105 mm
5 August 2023
Windiest day
53.1 km/h
6 April 1997
Strongest gust
100.8 km/h
15 December 2021
Hottest feels-like
44.8 °C
13 July 1995
Coldest feels-like
-39.0 °C
3 February 1996
Snowiest day
21.4 cm
15 December 1987
Sunniest day
14.3 h
2 July 1947
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -0.3 °C | +0.2 °C | 24 mm | -21 mm |
| Feb | 2.4 °C | +0.2 °C | 12 mm | -34 mm |
| Mar | 14.7 °C | +5.8 °C | 86 mm | +8 mm |
| Apr | 18.1 °C | +1.8 °C | 117 mm | +13 mm |
| May | 23.5 °C | +1.3 °C | 61 mm | -48 mm |
| Jun | 29.8 °C | +2.5 °C | 129 mm | +25 mm |
| Jul | 31.4 °C | +2.1 °C | 104 mm | +23 mm |
| Aug | 28.7 °C | +0.3 °C | 55 mm | -28 mm |
| Sep | 29.1 °C | +4.4 °C | 19 mm | -65 mm |
| Oct | 22.2 °C | +4.0 °C | 38 mm | -33 mm |
| Nov | 11.4 °C | +1.9 °C | 51 mm | -10 mm |
| Dec | 2.5 °C | +0.1 °C | 55 mm | +3 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Burlington?
Burlington has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.8 °C and it receives 915 mm of precipitation per year.
What is the hottest day ever recorded in Burlington?
The hottest day measured in Burlington between 1940 and 2025 was 7 July 2012, reaching 39.6 °C.
What is the coldest day in Burlington?
The coldest day measured in Burlington between 1940 and 2025 was 3 February 1996, at -33.6 °C.
Does it snow in Burlington?
Yes. Burlington gets on average 57.8 cm of snow per year and has around 112 frost days.
Has the climate of Burlington warmed?
Yes: Burlington warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Burlington?
The wettest day measured in Burlington between 1940 and 2025 was 5 August 2023, with 105 mm of rain in 24 hours.
What was the windiest day in Burlington?
The windiest day measured in Burlington between 1940 and 2025 was 6 April 1997, with winds reaching 53.1 km/h.
What is the warmest month in Burlington?
The warmest month in Burlington is July (24.4 °C on average); the coldest is January (-4.8 °C).
How much does it rain in Burlington?
Burlington receives on average 915 mm of precipitation per year, spread over about 109 rainy days.
Is it sunny in Burlington?
Burlington gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Burlington?
The heaviest 24-hour snowfall measured in Burlington between 1940 and 2025 was 15 December 1987, with 21.4 cm.
Are there tropical nights in Burlington?
Yes: Burlington has on average 40 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Burlington?
In Burlington, between 1940 and 2025, the highest apparent temperature reached 44.8 °C on 13 July 1995, and the lowest was -39.0 °C on 3 February 1996.
Compare Burlington with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Burlington