Diss climate — normals and trends
Diss (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.9 °C and it receives 630 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 (16.7 °C on average) and the coldest is January (3.8 °C). Rainfall peaks in August.
Diss averages 38 frost days, 0 hot days (≥ 30 °C) and 131 rainy days per year.
Diss 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 56 to 20 per year over the period.
The hottest day of the period reached 36.4 °C (on 19 July 2022) and the coldest -16.7 °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
DissEngland
- coords
- 52.38°, 1.11°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.9°C
Average daily high
13.1°C
Average daily low
6.6°C
Annual rainfall
630mm
Sunshine / day
8.0h
Mean relative humidity
81%
Average peak wind
21.5km/h
Seasonal range
12.9°C
Frost days (< 0 °C)
38 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
131 d/yr
Annual snowfall
13.4 cm
Average feels-like high
10.3 °C
Average feels-like low
3.6 °C
Average peak gust
41.5 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.7 °C
since 1940
+0.2 °C per decade · r² = 0.45 · 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
36.4 °C
19 July 2022
Coldest day
-16.7 °C
24 February 1947
Wettest day
56 mm
29 July 1969
Windiest day
65.1 km/h
16 October 1987
Strongest gust
123.8 km/h
18 January 2007
Hottest feels-like
35.6 °C
25 July 2019
Coldest feels-like
-21.5 °C
24 February 1947
Snowiest day
9.5 cm
23 January 1984
Sunniest day
16.0 h
3 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 6.0 °C | 0.0 °C | 51 mm | +3 mm |
| Feb | 7.2 °C | +0.6 °C | 45 mm | +4 mm |
| Mar | 12.2 °C | +3.1 °C | 9 mm | -38 mm |
| Apr | 15.2 °C | +3.3 °C | 14 mm | -34 mm |
| May | 17.5 °C | +2.2 °C | 36 mm | -22 mm |
| Jun | 22.7 °C | +4.3 °C | 40 mm | -17 mm |
| Jul | 22.6 °C | +2.0 °C | 85 mm | +25 mm |
| Aug | 22.0 °C | +1.5 °C | 32 mm | -31 mm |
| Sep | 18.7 °C | +0.7 °C | 38 mm | -14 mm |
| Oct | 14.3 °C | +0.2 °C | 67 mm | +14 mm |
| Nov | 11.0 °C | +1.5 °C | 93 mm | +40 mm |
| Dec | 9.3 °C | +2.3 °C | 36 mm | -14 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 Diss?
Diss has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.9 °C and it receives 630 mm of precipitation per year.
What is the hottest day ever recorded in Diss?
The hottest day measured in Diss between 1940 and 2025 was 19 July 2022, reaching 36.4 °C.
What is the coldest day in Diss?
The coldest day measured in Diss between 1940 and 2025 was 24 February 1947, at -16.7 °C.
Does it snow in Diss?
Yes. Diss gets on average 13.4 cm of snow per year and has around 38 frost days.
Has the climate of Diss warmed?
Yes: Diss warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Diss?
The wettest day measured in Diss between 1940 and 2025 was 29 July 1969, with 56 mm of rain in 24 hours.
What was the windiest day in Diss?
The windiest day measured in Diss between 1940 and 2025 was 16 October 1987, with winds reaching 65.1 km/h.
What is the warmest month in Diss?
The warmest month in Diss is July (16.7 °C on average); the coldest is January (3.8 °C).
How much does it rain in Diss?
Diss receives on average 630 mm of precipitation per year, spread over about 131 rainy days.
Is it sunny in Diss?
Diss 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 Diss?
The heaviest 24-hour snowfall measured in Diss between 1940 and 2025 was 23 January 1984, with 9.5 cm.
Are there tropical nights in Diss?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Diss.
What was the most extreme apparent temperature in Diss?
In Diss, between 1940 and 2025, the highest apparent temperature reached 35.6 °C on 25 July 2019, and the lowest was -21.5 °C on 24 February 1947.
Compare Diss with another city
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Nearby cities
The climate around Diss