Sutton climate — normals and trends
Sutton (Ireland) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.4 °C and it receives 859 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 (15.1 °C on average) and the coldest is February (6.3 °C). Rainfall peaks in November.
Sutton averages 1 frost days, 0 hot days (≥ 30 °C) and 157 rainy days per year.
Sutton has warmed by +0.8 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The number of frost days there went from about 2 to 0 per year over the period.
The hottest day of the period reached 22.4 °C (on 15 July 1983) and the coldest -5.1 °C (on 25 December 2010).
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
SuttonLeinster
- coords
- 53.39°, -6.11°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.4°C
Average daily high
12.0°C
Average daily low
8.8°C
Annual rainfall
859mm
Sunshine / day
8.0h
Mean relative humidity
81%
Average peak wind
28.7km/h
Seasonal range
8.8°C
Frost days (< 0 °C)
1 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
157 d/yr
Annual snowfall
6.8 cm
Average feels-like high
8.8 °C
Average feels-like low
4.8 °C
Average peak gust
43.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.25 · 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
22.4 °C
15 July 1983
Coldest day
-5.1 °C
25 December 2010
Wettest day
56 mm
17 October 1959
Windiest day
80.7 km/h
19 November 1959
Strongest gust
133.6 km/h
24 December 1997
Hottest feels-like
24.1 °C
15 July 1983
Coldest feels-like
-10.4 °C
1 March 2018
Snowiest day
14.8 cm
8 December 1954
Sunniest day
16.8 h
19 June 1940
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 | 7.9 °C | 0.0 °C | 76 mm | -6 mm |
| Feb | 8.8 °C | +1.0 °C | 66 mm | +2 mm |
| Mar | 10.2 °C | +1.4 °C | 14 mm | -48 mm |
| Apr | 11.8 °C | +1.7 °C | 109 mm | +55 mm |
| May | 14.2 °C | +1.8 °C | 40 mm | -18 mm |
| Jun | 16.7 °C | +1.7 °C | 94 mm | +33 mm |
| Jul | 18.1 °C | +1.5 °C | 94 mm | +26 mm |
| Aug | 18.0 °C | +1.2 °C | 38 mm | -36 mm |
| Sep | 15.8 °C | +0.3 °C | 125 mm | +49 mm |
| Oct | 13.7 °C | +0.4 °C | 97 mm | +12 mm |
| Nov | 11.5 °C | +1.1 °C | 150 mm | +61 mm |
| Dec | 10.0 °C | +1.1 °C | 94 mm | +5 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 Sutton?
Sutton has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.4 °C and it receives 859 mm of precipitation per year.
What is the hottest day ever recorded in Sutton?
The hottest day measured in Sutton between 1940 and 2025 was 15 July 1983, reaching 22.4 °C.
What is the coldest day in Sutton?
The coldest day measured in Sutton between 1940 and 2025 was 25 December 2010, at -5.1 °C.
Does it snow in Sutton?
Yes. Sutton gets on average 6.8 cm of snow per year and has around 1 frost days.
Has the climate of Sutton warmed?
Yes: Sutton warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sutton?
The wettest day measured in Sutton between 1940 and 2025 was 17 October 1959, with 56 mm of rain in 24 hours.
What was the windiest day in Sutton?
The windiest day measured in Sutton between 1940 and 2025 was 19 November 1959, with winds reaching 80.7 km/h.
What is the warmest month in Sutton?
The warmest month in Sutton is August (15.1 °C on average); the coldest is February (6.3 °C).
How much does it rain in Sutton?
Sutton receives on average 859 mm of precipitation per year, spread over about 157 rainy days.
Is it sunny in Sutton?
Sutton gets on average 8.0 hours of sunshine per day, roughly 2,920 hours per year over 1940-2025.
What is the biggest single-day snowfall in Sutton?
The heaviest 24-hour snowfall measured in Sutton between 1940 and 2025 was 8 December 1954, with 14.8 cm.
Are there tropical nights in Sutton?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Sutton.
What was the most extreme apparent temperature in Sutton?
In Sutton, between 1940 and 2025, the highest apparent temperature reached 24.1 °C on 15 July 1983, and the lowest was -10.4 °C on 1 March 2018.
Compare Sutton with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sutton