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Burlington climate
Typical historical weather for Burlington, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.
Want today's actual conditions instead? See the current forecast for Burlington. Planning a garden? See the gardening & growing season planner. Or browse the 365-day climate calendar.
Annual average
9.7°C
across all months
Warmest month
22.2°C
Aug average high
Coolest month
0.2°C
Feb average low
Annual rainfall
1930mm
total per year
Burlington is typically hottest in August and coolest in February, a swing of about 22°C across the year. About 42% of annual rainfall falls in the three wettest months (November is typically wettest, July driest).
Monthly averages
Average daily high/low temperature (band) and monthly rainfall (bars).
| Month | Avg high | Avg low | Rainfall | Wet days | Humidity | Wind | Cloud | Solar |
|---|---|---|---|---|---|---|---|---|
| Jan | 5.9°C · record 8.7–15.4°C | 1.2°C · record -16–-2.8°C | 245mm | 19 | 85% | 2.4 m/s | 78% | 1 kWh/m² |
| Feb | 5.8°C · record 7.5–15.7°C | 0.2°C · record -14.8–-0.8°C | 218mm | 19 | 83% | 2.1 m/s | 76% | 1.8 kWh/m² |
| Mar | 9°C · record 11.4–22.3°C | 2.5°C · record -6.7–1.4°C | 194mm | 19 | 79% | 2.1 m/s | 73% | 3 kWh/m² |
| Apr | 12°C · record 15.8–26.7°C | 5.2°C · record -2.1–4.7°C | 150mm | 17 | 76% | 2 m/s | 71% | 4.4 kWh/m² |
| May | 15.9°C · record 17.5–26°C | 8.8°C · record 2.6–7.2°C | 88mm | 13 | 76% | 1.7 m/s | 65% | 5.4 kWh/m² |
| Jun | 18.2°C · record 22–36.2°C | 11.1°C · record 6.2–8.4°C | 80mm | 11 | 76% | 1.6 m/s | 63% | 5.9 kWh/m² |
| Jul | 21.5°C · record 25.1–30°C | 13.4°C · record 9.7–11.4°C | 26mm | 5 | 74% | 1.5 m/s | 41% | 6.5 kWh/m² |
| Aug | 22.2°C · record 26.4–33.5°C | 13.9°C · record 5.6–11.2°C | 37mm | 5 | 75% | 1.4 m/s | 46% | 5.5 kWh/m² |
| Sep | 18.7°C · record 21.5–28.8°C | 11.6°C · record 5.7–9.6°C | 104mm | 11 | 79% | 1.6 m/s | 59% | 3.8 kWh/m² |
| Oct | 13.1°C · record 14.5–25.3°C | 7°C · record -0.7–3.8°C | 216mm | 17 | 83% | 2 m/s | 68% | 2.2 kWh/m² |
| Nov | 8.5°C · record 11.8–18.6°C | 3.7°C · record -9.4–0.6°C | 288mm | 20 | 86% | 2.4 m/s | 80% | 1.1 kWh/m² |
| Dec | 5.3°C · record 6.4–13.8°C | 0.9°C · record -13.9–-1.4°C | 283mm | 20 | 88% | 2.3 m/s | 81% | 0.8 kWh/m² |
"Avg high"/"Avg low" is the mean daily high/low for that month, averaged across every year on file. The "record" figure alongside it is a different statistic — the single hottest (or coldest) hour ever recorded during that month across all years — so it can sit above or below the average and does not describe the average's year-to-year spread. A "wet day" is any day with at least 1.0mm of rain.
Year to year
Annual average temperature, 2016–2025.
Across these 10 years, the annual average has moved by about +0.02°C per decade. That’s a short window for a reliable long-term climate trend — treat it as indicative, not definitive.
Annual rainfall has moved by about -222.32mm per decade over the same period.
2025 (the most recent year on file) averaged 9.992995296112502°C, above the 9-year baseline of 9.72°C by 0.89 standard deviations.
Typical extremes per year
Rainy days
175.2 days
≥1.0mm rain
Heavy rain days
25.3 days
≥20mm rain
Extreme heat days
0 days
daily high ≥40°C
Frost days
41.8 days
daily low ≤0°C
Averaged across 10 years on file. Thresholds match PastClimate's data pipeline definitions — see data & sources.
Records on file
Ranked across 10 years of data currently on file (2016–2025).
Hottest day
36.2°C
28 June 2021
2021 was 0.63 SD below the 9-year average that year
Coldest day
-16°C
12 January 2024
2024 was 0.22 SD above the 9-year average that year
Wettest day
66.4mm
10 December 2025
2025 was 0.89 SD above the 9-year average that year
Windiest day
6.1m/s
15 November 2021
2021 was 0.63 SD below the 9-year average that year
See the detail: Burlington on 10 December 2025.
Nearby cities
Mount Vernon
Same ERA5 grid cell
Anacortes
Same ERA5 grid cell
Sedro-Woolley
Same ERA5 grid cell
Arlington
27.8 km away
Stanwood
27.8 km away
Sudden Valley
27.8 km away
Want a side-by-side view instead? Compare Burlington with another city.
Frequently asked questions about Burlington's climate
What is the hottest month in Burlington?
August is typically the warmest month in Burlington, with an average high of 22.2°C. February is typically the coolest, averaging 0.2°C overnight.
How much does it rain in Burlington?
Burlington gets about 1930mm of rain a year on average, with roughly 42% of it falling in the three wettest months (November is typically the wettest, July the driest).
How many extremely hot or cold days does Burlington have?
On average, Burlington sees about 0 day(s) a year at or above 40°C and about 41.8 day(s) at or below 0°C, based on 10 years of data.
Is Burlington getting warmer?
Across the 10 years on file (2016–2025), the annual average temperature has moved by about +0.02°C per decade. That's a short window for a reliable long-term climate trend — treat it as indicative, not definitive.
What is the hottest day on record for Burlington?
The hottest day on file is 28 June 2021 at 36.2°C, out of 10 year(s) searched.
Data & provenance
↓ Download monthly CSVData source & coverage — ERA5 reanalysis, 2016–2025 (10 years)details
- Source
- ERA5 reanalysis, accessed via the Copernicus Climate Change Service (C3S) Climate Data Store
- Data type
- Reanalysis — a physically consistent reconstruction combining a forecast model with historical observations, not a live station reading or a forecast
- Coverage
- 2016–2025 (10 years) for United States
- Location
- Burlington — 48.500°, -122.250°, ERA5 grid cell center, 6.2 km from requested point
- Time zone
- America/Los_Angeles
- What's shown here
- Monthly and annual averages, and dated extreme-value records, derived from an hourly base record.
- Spatial resolution
- 0.25° (~25 km) distributed grid — ERA5's native model resolution is finer; this is the publicly distributed regridded product
- Version / refreshed
- Methodology v2026.07 · data last refreshed December 31, 2025
- Limitations
- A model reconstruction, not a station observation — hyper-local extremes (a single storm cell, an urban heat pocket) can differ from a nearby gauge. See the full methodology.
- Attribution
- Generated using Copernicus Climate Change Service information
Cite this data
PastClimate (2026-07-17). Historical climate data for Burlington, United States (48.50°N, 122.25°W), derived from ERA5 (Hersbach et al., 2023, Copernicus Climate Change Service). Retrieved from https://www.pastclimate.com/
PastClimate. (2026). Historical climate data for Burlington, United States [Data set]. Derived from ERA5 (Copernicus Climate Change Service). Retrieved July 17, 2026, from https://www.pastclimate.com/
"Historical Climate Data for Burlington, United States." PastClimate, derived from ERA5 (Copernicus Climate Change Service), July 17, 2026, www.pastclimate.com.
@misc{pastclimate,
author = {PastClimate},
title = {Historical climate data for Burlington, United States},
year = {2026},
note = {Derived from ERA5 (Hersbach et al., 2023), Copernicus Climate Change Service. Accessed 2026-07-17},
url = {https://www.pastclimate.com/}
}Notice something wrong with this data? Report a data issue.