Ruthin climate — normals and trends
Ruthin (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.7 °C and it receives 847 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 (14.9 °C on average) and the coldest is January (3.3 °C). Rainfall peaks in December.
Ruthin averages 48 frost days, 0 hot days (≥ 30 °C) and 162 rainy days per year.
Ruthin has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.
The number of frost days there went from about 68 to 28 per year over the period.
The hottest day of the period reached 32.6 °C (on 18 July 2022) and the coldest -17.7 °C (on 24 February 1947).
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
RuthinWales
- coords
- 53.11°, -3.32°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.7°C
Average daily high
11.7°C
Average daily low
5.7°C
Annual rainfall
847mm
Sunshine / day
7.2h
Mean relative humidity
84%
Average peak wind
19.2km/h
Seasonal range
11.6°C
Frost days (< 0 °C)
48 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
162 d/yr
Annual snowfall
36.7 cm
Average feels-like high
9.0 °C
Average feels-like low
2.7 °C
Average peak gust
43.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.44 · 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
32.6 °C
18 July 2022
Coldest day
-17.7 °C
24 February 1947
Wettest day
62 mm
24 September 2012
Windiest day
61.1 km/h
30 November 1954
Strongest gust
132.1 km/h
23 April 1947
Hottest feels-like
32.4 °C
28 July 1947
Coldest feels-like
-22.3 °C
24 February 1947
Snowiest day
16.7 cm
14 December 1989
Sunniest day
16.2 h
27 June 2019
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 | 5.4 °C | -0.1 °C | 107 mm | +34 mm |
| Feb | 6.8 °C | +0.9 °C | 44 mm | -17 mm |
| Mar | 11.1 °C | +3.0 °C | 19 mm | -45 mm |
| Apr | 14.6 °C | +3.8 °C | 49 mm | -16 mm |
| May | 16.8 °C | +2.7 °C | 32 mm | -40 mm |
| Jun | 19.0 °C | +2.2 °C | 68 mm | -1 mm |
| Jul | 20.0 °C | +1.7 °C | 47 mm | -22 mm |
| Aug | 20.1 °C | +2.1 °C | 25 mm | -49 mm |
| Sep | 15.8 °C | 0.0 °C | 132 mm | +62 mm |
| Oct | 12.7 °C | +0.3 °C | 76 mm | -0 mm |
| Nov | 9.9 °C | +1.4 °C | 151 mm | +75 mm |
| Dec | 8.3 °C | +1.9 °C | 110 mm | +32 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 Ruthin?
Ruthin has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.7 °C and it receives 847 mm of precipitation per year.
What is the hottest day ever recorded in Ruthin?
The hottest day measured in Ruthin between 1940 and 2025 was 18 July 2022, reaching 32.6 °C.
What is the coldest day in Ruthin?
The coldest day measured in Ruthin between 1940 and 2025 was 24 February 1947, at -17.7 °C.
Does it snow in Ruthin?
Yes. Ruthin gets on average 36.7 cm of snow per year and has around 48 frost days.
Has the climate of Ruthin warmed?
Yes: Ruthin warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Ruthin?
The wettest day measured in Ruthin between 1940 and 2025 was 24 September 2012, with 62 mm of rain in 24 hours.
What was the windiest day in Ruthin?
The windiest day measured in Ruthin between 1940 and 2025 was 30 November 1954, with winds reaching 61.1 km/h.
What is the warmest month in Ruthin?
The warmest month in Ruthin is July (14.9 °C on average); the coldest is January (3.3 °C).
How much does it rain in Ruthin?
Ruthin receives on average 847 mm of precipitation per year, spread over about 162 rainy days.
Is it sunny in Ruthin?
Ruthin gets on average 7.2 hours of sunshine per day, roughly 2,628 hours per year over 1940-2025.
What is the biggest single-day snowfall in Ruthin?
The heaviest 24-hour snowfall measured in Ruthin between 1940 and 2025 was 14 December 1989, with 16.7 cm.
Are there tropical nights in Ruthin?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Ruthin.
What was the most extreme apparent temperature in Ruthin?
In Ruthin, between 1940 and 2025, the highest apparent temperature reached 32.4 °C on 28 July 1947, and the lowest was -22.3 °C on 24 February 1947.
Compare Ruthin with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Ruthin