Royston climate — normals and trends
Royston (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.0 °C and it receives 610 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 (17.0 °C on average) and the coldest is January (3.9 °C). Rainfall peaks in August.
Royston averages 40 frost days, 1 hot days (≥ 30 °C) and 125 rainy days per year.
Royston has warmed by +1.8 °C between 1940 and 2025, or +0.21 °C per decade. This trend is statistically significant.
The number of frost days there went from about 57 to 23 per year over the period.
The hottest day of the period reached 38.7 °C (on 19 July 2022) and the coldest -13.8 °C (on 10 February 1986).
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
RoystonEngland
- coords
- 52.05°, -0.02°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.0°C
Average daily high
13.3°C
Average daily low
6.6°C
Annual rainfall
610mm
Sunshine / day
7.4h
Mean relative humidity
80%
Average peak wind
22.1km/h
Seasonal range
13.1°C
Frost days (< 0 °C)
40 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
125 d/yr
Annual snowfall
14.0 cm
Average feels-like high
10.4 °C
Average feels-like low
3.5 °C
Average peak gust
41.4 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.8 °C
since 1940
+0.2 °C per decade · r² = 0.47 · 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
38.7 °C
19 July 2022
Coldest day
-13.8 °C
10 February 1986
Wettest day
50 mm
20 June 1973
Windiest day
65.5 km/h
16 October 1987
Strongest gust
126.0 km/h
18 January 2007
Hottest feels-like
37.4 °C
25 July 2019
Coldest feels-like
-18.6 °C
2 February 1956
Snowiest day
14.3 cm
4 March 1970
Sunniest day
16.0 h
30 May 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 | 6.1 °C | -0.1 °C | 60 mm | +12 mm |
| Feb | 7.4 °C | +0.6 °C | 47 mm | +7 mm |
| Mar | 12.6 °C | +3.2 °C | 13 mm | -33 mm |
| Apr | 16.3 °C | +4.0 °C | 28 mm | -21 mm |
| May | 18.7 °C | +3.1 °C | 22 mm | -35 mm |
| Jun | 23.5 °C | +4.7 °C | 33 mm | -23 mm |
| Jul | 23.6 °C | +2.6 °C | 68 mm | +14 mm |
| Aug | 23.1 °C | +2.3 °C | 29 mm | -29 mm |
| Sep | 18.8 °C | +0.6 °C | 40 mm | -9 mm |
| Oct | 14.5 °C | +0.3 °C | 48 mm | -4 mm |
| Nov | 11.0 °C | +1.5 °C | 105 mm | +53 mm |
| Dec | 9.3 °C | +2.2 °C | 39 mm | -10 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 Royston?
Royston has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.0 °C and it receives 610 mm of precipitation per year.
What is the hottest day ever recorded in Royston?
The hottest day measured in Royston between 1940 and 2025 was 19 July 2022, reaching 38.7 °C.
What is the coldest day in Royston?
The coldest day measured in Royston between 1940 and 2025 was 10 February 1986, at -13.8 °C.
Does it snow in Royston?
Yes. Royston gets on average 14.0 cm of snow per year and has around 40 frost days.
Has the climate of Royston warmed?
Yes: Royston warmed by +1.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Royston?
The wettest day measured in Royston between 1940 and 2025 was 20 June 1973, with 50 mm of rain in 24 hours.
What was the windiest day in Royston?
The windiest day measured in Royston between 1940 and 2025 was 16 October 1987, with winds reaching 65.5 km/h.
What is the warmest month in Royston?
The warmest month in Royston is July (17.0 °C on average); the coldest is January (3.9 °C).
How much does it rain in Royston?
Royston receives on average 610 mm of precipitation per year, spread over about 125 rainy days.
Is it sunny in Royston?
Royston gets on average 7.4 hours of sunshine per day, roughly 2,701 hours per year over 1940-2025.
What is the biggest single-day snowfall in Royston?
The heaviest 24-hour snowfall measured in Royston between 1940 and 2025 was 4 March 1970, with 14.3 cm.
Are there tropical nights in Royston?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Royston.
What was the most extreme apparent temperature in Royston?
In Royston, between 1940 and 2025, the highest apparent temperature reached 37.4 °C on 25 July 2019, and the lowest was -18.6 °C on 2 February 1956.
Compare Royston with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Royston