Dartmouth climate — normals and trends
Dartmouth (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.3 °C and it receives 752 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 August (16.1 °C on average) and the coldest is February (7.0 °C). Rainfall peaks in November.
Dartmouth averages 2 frost days, 0 hot days (≥ 30 °C) and 130 rainy days per year.
Dartmouth has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.
The number of frost days there went from about 4 to 0 per year over the period.
The hottest day of the period reached 25.2 °C (on 16 August 1947) and the coldest -4.6 °C (on 13 January 1987).
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
DartmouthEngland
- coords
- 50.35°, -3.58°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.3°C
Average daily high
12.5°C
Average daily low
9.9°C
Annual rainfall
752mm
Sunshine / day
8.6h
Mean relative humidity
82%
Average peak wind
31.6km/h
Seasonal range
9.1°C
Frost days (< 0 °C)
2 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
130 d/yr
Annual snowfall
4.8 cm
Average feels-like high
9.4 °C
Average feels-like low
5.7 °C
Average peak gust
46.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
12.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.2 °C
since 1940
+0.1 °C per decade · r² = 0.35 · 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
25.2 °C
16 August 1947
Coldest day
-4.6 °C
13 January 1987
Wettest day
54 mm
29 June 1986
Windiest day
89.2 km/h
25 January 1990
Strongest gust
144.7 km/h
25 January 1990
Hottest feels-like
28.3 °C
21 July 2021
Coldest feels-like
-14.9 °C
13 January 1987
Snowiest day
8.4 cm
1 March 2018
Sunniest day
15.8 h
19 June 2025
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 | 9.0 °C | +0.3 °C | 146 mm | +64 mm |
| Feb | 9.0 °C | +0.8 °C | 75 mm | +10 mm |
| Mar | 10.0 °C | +1.0 °C | 12 mm | -46 mm |
| Apr | 11.8 °C | +1.5 °C | 77 mm | +30 mm |
| May | 14.5 °C | +1.9 °C | 28 mm | -23 mm |
| Jun | 16.8 °C | +1.6 °C | 50 mm | +6 mm |
| Jul | 19.0 °C | +1.9 °C | 26 mm | -14 mm |
| Aug | 18.7 °C | +1.3 °C | 31 mm | -17 mm |
| Sep | 16.4 °C | +0.1 °C | 74 mm | +19 mm |
| Oct | 14.7 °C | +0.5 °C | 78 mm | -5 mm |
| Nov | 12.8 °C | +1.3 °C | 105 mm | +12 mm |
| Dec | 11.0 °C | +1.2 °C | 142 mm | +54 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 Dartmouth?
Dartmouth has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.3 °C and it receives 752 mm of precipitation per year.
What is the hottest day ever recorded in Dartmouth?
The hottest day measured in Dartmouth between 1940 and 2025 was 16 August 1947, reaching 25.2 °C.
What is the coldest day in Dartmouth?
The coldest day measured in Dartmouth between 1940 and 2025 was 13 January 1987, at -4.6 °C.
Does it snow in Dartmouth?
Yes. Dartmouth gets on average 4.8 cm of snow per year and has around 2 frost days.
Has the climate of Dartmouth warmed?
Yes: Dartmouth warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dartmouth?
The wettest day measured in Dartmouth between 1940 and 2025 was 29 June 1986, with 54 mm of rain in 24 hours.
What was the windiest day in Dartmouth?
The windiest day measured in Dartmouth between 1940 and 2025 was 25 January 1990, with winds reaching 89.2 km/h.
What is the warmest month in Dartmouth?
The warmest month in Dartmouth is August (16.1 °C on average); the coldest is February (7.0 °C).
How much does it rain in Dartmouth?
Dartmouth receives on average 752 mm of precipitation per year, spread over about 130 rainy days.
Is it sunny in Dartmouth?
Dartmouth gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Dartmouth?
The heaviest 24-hour snowfall measured in Dartmouth between 1940 and 2025 was 1 March 2018, with 8.4 cm.
Are there tropical nights in Dartmouth?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Dartmouth.
What was the most extreme apparent temperature in Dartmouth?
In Dartmouth, between 1940 and 2025, the highest apparent temperature reached 28.3 °C on 21 July 2021, and the lowest was -14.9 °C on 13 January 1987.
Compare Dartmouth with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dartmouth