Burlington, VT climate: monthly averages and frost dates

Burlington, VT has cold winters and warm summers by this site's scale, with moderate annual precipitation. The figures are the 1991–2020 climate normals for NOAA station USW00014742 (BURLINGTON INTL AP), 5 mi (8 km) in a straight line from the city's center point (US Census).

Warmest month high: 82.4°F; July
Coldest month mean: 20.9°F; January
Precipitation: 37.5 in; per year
Snowfall: 87.5 in; per year
Median last frost: April 29; 32°F, spring
Median first frost: October 15; 32°F, autumn

Monthly averages in Burlington

NOAA 1991–2020 monthly normals, station USW00014742. “–” means NOAA publishes no value.
Month	High °F	Low °F	Mean °F	Precip. in	Snow in	Days ≥0.01 in	Days ≥90°F	Nights ≤32°F
January	28.9	12.9	20.9	2.13	21.1	14.7	0.0	28.7
February	31.5	14.3	22.9	1.77	19.3	12.1	0.0	26.1
March	40.9	23.6	32.3	2.24	17.5	12.7	0.0	25.7
April	55.3	35.9	45.6	3.07	4.1	13.2	0.0	12.9
May	69.0	47.8	58.4	3.76	0.0	13.6	0.4	0.9
June	77.6	57.3	67.5	4.26	0.0	13.6	1.8	0.0
July	82.4	62.4	72.4	4.06	0.0	12.8	3.6	0.0
August	80.7	60.7	70.7	3.54	0.0	11.7	1.6	0.0
September	72.6	52.9	62.7	3.67	0.0	11.0	0.7	0.3
October	58.9	41.8	50.3	3.83	0.3	12.9	0.0	6.2
November	46.4	32.1	39.3	2.70	5.7	13.7	0.0	17.3
December	35.0	21.3	28.2	2.50	19.5	15.2	0.0	26.6
Year	56.6	38.6	47.6	37.53	87.5	157.2	8.2	144.7

How cold is winter in Burlington?

Winters in Burlington are cold by this site's scale (coldest-month mean 20 to under 32°F). The coldest month is January, with a mean temperature of 20.9°F (−6.2°C), a normal daily high of 28.9°F (−1.7°C) and a normal daily low of 12.9°F (−10.6°C).

The station averages 144.7 nights a year at or below 32°F and 57.1 days when the high stays at or below 32°F.

The normal daily low is at or below freezing in December to March.

How hot is summer in Burlington?

Summers in Burlington are warm by this site's scale (hottest-month high 80 to under 90°F). July has the highest normal daily high, 82.4°F (28.0°C), with nights averaging 62.4°F (16.9°C).

The high reaches 90°F or more on 8.2 days in a normal year.

What is the wettest month in Burlington?

Burlington gets 37.53 in (953 mm) of precipitation in a normal year, which this site classes as moderate (20 to under 40 in a year). The wettest month is June with 4.26 in (108 mm); the driest is February with 1.77 in (45 mm).

Measurable precipitation (0.01 in or more) falls on 157.2 days a year.

Does it snow in Burlington?

Normal annual snowfall in Burlington is 87.5 in (222 cm), which this site classes as very heavy (72 in or more a year).

January is the snowiest month, with 21.1 in (54 cm).

A day with 1.0 in or more of snowfall comes 23.1 times a year on average.

Which months are mild in Burlington?

5 months in Burlington meet this site's comfort thresholds (normal high 65–85°F, low 45°F or higher, fewer than 10 days with 0.10 in or more of precipitation): May to September.

Thresholds and their limits: methodology.

Frost dates and growing season in Burlington

In Burlington the median last spring night at or below 32°F is April 29, and the median first autumn one is October 15 (NOAA P50 dates). NOAA's median length of the freeze-free season is 169 days.

There is still a 10% chance of a 32°F night on or after May 11, and a 10% chance that the first one has come by October 2.

The chance that the last spring 32°F night comes on or after April 17 is 90%.

For a hard freeze (28°F or lower) the median dates are April 18 in spring and October 28 in autumn.

32°F frost dates by probability (NOAA PRBLST, PRBFST, PRBGSL). The 50% row is the median. Season lengths are NOAA’s own percentiles of each year’s season, so they need not equal the gap between the two dates in the same row.
Chance	Last spring 32°F night on or after	First autumn 32°F night by	Freeze-free season, days
10%	May 11	October 2	187
20%	May 6	October 6	181
30%	May 3	October 9	177
40%	May 1	October 12	172
50%	April 29	October 15	169
60%	April 26	October 18	164
70%	April 24	October 22	161
80%	April 21	October 26	156
90%	April 17	November 1	149

Median (P50) dates at each temperature threshold NOAA publishes.
Threshold	Median last date (spring)	Median first date (autumn or winter)	Median season, days
36°F	May 8	October 4	147
32°F	April 29	October 15	169
28°F	April 18	October 28	193
24°F	April 7	November 9	215
20°F	March 31	November 20	234
16°F	March 22	November 30	250

Chance of at least one night at or below 32°F in the month (NOAA MLY-TMIN-PRBOCC-LSTH032).
Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
100%	100%	100%	100%	41%	0%	0%	0%	5%	88%	100%	100%

Nearby and similar places

Of the places on this site, the closest to Burlington by station distance are Boston, MA at 181 mi (291 km), New York, NY at 258 mi (416 km) and Buffalo, NY at 298 mi (480 km).

Among places whose winter, summer and precipitation words are each within one band of Burlington's (winter: cold, summer: warm, precipitation: moderate), the closest monthly temperature and precipitation patterns are Chicago, IL, Detroit, MI and Buffalo, NY.

Compared with Boston, MA, Burlington's peak-month normal high is 0.3°F (0.2°C) higher, its coldest-month mean is 9.0°F (5.0°C) lower, and its annual precipitation is 6.06 in less.

Place	Listed as	Station distance	Coldest mean °F	Warmest high °F	Precip. in/yr	Snow in/yr	Last frost
Burlington, VT	this page	–	20.9	82.4	37.5	87.5	April 29
Boston, MA	nearby	181 mi (291 km)	29.9	82.1	43.6	49.2	April 4
New York, NY	nearby	258 mi (416 km)	33.7	84.9	49.5	29.8	March 30
Buffalo, NY	nearby, similar	298 mi (480 km)	25.5	80.2	40.7	95.4	April 24
Chicago, IL	similar	762 mi (1,227 km)	25.2	84.5	37.9	38.4	April 16
Detroit, MI	similar	534 mi (859 km)	25.8	83.7	34.3	45.0	April 20

How nearby and similar places are chosen: methodology.

Source and station

The data for Burlington come from NOAA station BURLINGTON INTL AP, VT US (USW00014742) at 44.4683, -73.1500, elevation 330 ft (101 m). It lies 5 mi (8 km) in a straight line from the center point of Burlington city, the “internal point” in the US Census 2024 Gazetteer.

Each monthly normal used here rests on at least 27 years of data from 1991–2020 (NOAA's per-field year counts).

NOAA completeness flags on the monthly fields used here:

S: Standard: meets WMO standards for data availability for 24 or more years.

Cite the data as:

Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020). Station USW00014742 (BURLINGTON INTL AP, VT US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/wck8-er13. Accessed 2026-10-09.
Palecki, Michael; Durre, Imke; Applequist, Scott; Arguez, Anthony; Lawrimore, Jay (2021). U.S. Climate Normals 2020: U.S. Annual/Seasonal Climate Normals (1991-2020). Station USW00014742 (BURLINGTON INTL AP, VT US). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4ek7-fk11. Accessed 2026-10-09.

Files used: monthly normals CSV, annual/seasonal normals CSV (retrieved 2026-10-09). The values on this page as JSON: /us/vt/burlington/data.json.