Brighton climate — normals and trends
Brighton (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 10.1 °C and it receives 389 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 (23.8 °C on average) and the coldest is January (-2.9 °C). Rainfall peaks in May.
Brighton averages 142 frost days, 62 hot days (≥ 30 °C) and 71 rainy days per year.
Brighton has warmed by +2.4 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 156 to 128 per year over the period.
The hottest day of the period reached 40.0 °C (on 23 June 1954) and the coldest -38.1 °C (on 12 January 1963).
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
BrightonColorado
- coords
- 39.99°, -104.82°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.1°C
Average daily high
17.7°C
Average daily low
3.4°C
Annual rainfall
389mm
Sunshine / day
10.6h
Mean relative humidity
52%
Average peak wind
16.4km/h
Seasonal range
26.7°C
Frost days (< 0 °C)
142 d/yr
Hot days (≥ 30 °C)
62 d/yr
Rainy days (≥ 1 mm)
71 d/yr
Annual snowfall
79.9 cm
Average feels-like high
14.9 °C
Average feels-like low
0.2 °C
Average peak gust
31.6 km/h
Tropical nights (≥ 20 °C)
2 d/yr
Solar radiation
18.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.42 · 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
40.0 °C
23 June 1954
Coldest day
-38.1 °C
12 January 1963
Wettest day
69 mm
8 June 1974
Windiest day
54.4 km/h
10 October 1949
Strongest gust
97.6 km/h
6 June 2020
Hottest feels-like
39.1 °C
23 June 1954
Coldest feels-like
-43.5 °C
12 January 1963
Snowiest day
36.7 cm
18 March 2003
Sunniest day
14.2 h
17 June 1948
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 | 2.3 °C | -2.2 °C | 16 mm | +1 mm |
| Feb | 7.4 °C | +0.5 °C | 14 mm | -1 mm |
| Mar | 16.6 °C | +5.1 °C | 31 mm | -3 mm |
| Apr | 18.2 °C | +1.7 °C | 29 mm | -24 mm |
| May | 22.4 °C | +0.8 °C | 74 mm | +4 mm |
| Jun | 29.3 °C | +1.3 °C | 49 mm | +6 mm |
| Jul | 33.0 °C | +1.4 °C | 36 mm | -0 mm |
| Aug | 31.2 °C | +0.9 °C | 36 mm | +4 mm |
| Sep | 27.0 °C | +1.1 °C | 52 mm | +25 mm |
| Oct | 20.5 °C | +1.6 °C | 12 mm | -17 mm |
| Nov | 15.7 °C | +5.1 °C | 7 mm | -13 mm |
| Dec | 13.8 °C | +7.9 °C | 7 mm | -7 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 Brighton?
Brighton has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.1 °C and it receives 389 mm of precipitation per year.
What is the hottest day ever recorded in Brighton?
The hottest day measured in Brighton between 1940 and 2025 was 23 June 1954, reaching 40.0 °C.
What is the coldest day in Brighton?
The coldest day measured in Brighton between 1940 and 2025 was 12 January 1963, at -38.1 °C.
Does it snow in Brighton?
Yes. Brighton gets on average 79.9 cm of snow per year and has around 142 frost days.
Has the climate of Brighton warmed?
Yes: Brighton warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Brighton?
The wettest day measured in Brighton between 1940 and 2025 was 8 June 1974, with 69 mm of rain in 24 hours.
What was the windiest day in Brighton?
The windiest day measured in Brighton between 1940 and 2025 was 10 October 1949, with winds reaching 54.4 km/h.
What is the warmest month in Brighton?
The warmest month in Brighton is July (23.8 °C on average); the coldest is January (-2.9 °C).
How much does it rain in Brighton?
Brighton receives on average 389 mm of precipitation per year, spread over about 71 rainy days.
Is it sunny in Brighton?
Brighton gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
What is the biggest single-day snowfall in Brighton?
The heaviest 24-hour snowfall measured in Brighton between 1940 and 2025 was 18 March 2003, with 36.7 cm.
Are there tropical nights in Brighton?
Yes: Brighton has on average 2 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Brighton?
In Brighton, between 1940 and 2025, the highest apparent temperature reached 39.1 °C on 23 June 1954, and the lowest was -43.5 °C on 12 January 1963.
Compare Brighton with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Brighton