Downpatrick climate — normals and trends
Downpatrick (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.9 °C and it receives 954 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 (14.7 °C on average) and the coldest is February (5.7 °C). Rainfall peaks in October.
Downpatrick averages 3 frost days, 0 hot days (≥ 30 °C) and 167 rainy days per year.
Downpatrick has warmed by +0.9 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The number of frost days there went from about 5 to 1 per year over the period.
The hottest day of the period reached 23.6 °C (on 22 July 2021) and the coldest -4.8 °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
DownpatrickNorthern Ireland
- coords
- 54.33°, -5.72°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.9°C
Average daily high
11.7°C
Average daily low
8.1°C
Annual rainfall
954mm
Sunshine / day
7.4h
Mean relative humidity
82%
Average peak wind
27.3km/h
Seasonal range
9.0°C
Frost days (< 0 °C)
3 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
167 d/yr
Annual snowfall
9.5 cm
Average feels-like high
8.5 °C
Average feels-like low
4.2 °C
Average peak gust
44.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.28 · 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
23.6 °C
22 July 2021
Coldest day
-4.8 °C
25 December 2010
Wettest day
61 mm
2 October 1981
Windiest day
77.7 km/h
19 November 1959
Strongest gust
133.6 km/h
3 December 2006
Hottest feels-like
25.8 °C
17 July 2021
Coldest feels-like
-11.9 °C
13 January 1987
Snowiest day
14.0 cm
22 March 2013
Sunniest day
16.9 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 | 7.5 °C | +0.1 °C | 60 mm | -32 mm |
| Feb | 8.3 °C | +0.9 °C | 68 mm | -3 mm |
| Mar | 10.1 °C | +1.7 °C | 21 mm | -49 mm |
| Apr | 12.0 °C | +1.9 °C | 85 mm | +24 mm |
| May | 14.9 °C | +2.4 °C | 49 mm | -17 mm |
| Jun | 16.2 °C | +1.1 °C | 125 mm | +59 mm |
| Jul | 17.9 °C | +1.3 °C | 96 mm | +22 mm |
| Aug | 18.0 °C | +1.3 °C | 53 mm | -29 mm |
| Sep | 15.5 °C | +0.3 °C | 139 mm | +56 mm |
| Oct | 13.1 °C | +0.3 °C | 118 mm | +21 mm |
| Nov | 10.7 °C | +0.8 °C | 134 mm | +40 mm |
| Dec | 9.4 °C | +1.0 °C | 117 mm | +20 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 Downpatrick?
Downpatrick has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.9 °C and it receives 954 mm of precipitation per year.
What is the hottest day ever recorded in Downpatrick?
The hottest day measured in Downpatrick between 1940 and 2025 was 22 July 2021, reaching 23.6 °C.
What is the coldest day in Downpatrick?
The coldest day measured in Downpatrick between 1940 and 2025 was 25 December 2010, at -4.8 °C.
Does it snow in Downpatrick?
Yes. Downpatrick gets on average 9.5 cm of snow per year and has around 3 frost days.
Has the climate of Downpatrick warmed?
Yes: Downpatrick warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Downpatrick?
The wettest day measured in Downpatrick between 1940 and 2025 was 2 October 1981, with 61 mm of rain in 24 hours.
What was the windiest day in Downpatrick?
The windiest day measured in Downpatrick between 1940 and 2025 was 19 November 1959, with winds reaching 77.7 km/h.
What is the warmest month in Downpatrick?
The warmest month in Downpatrick is August (14.7 °C on average); the coldest is February (5.7 °C).
How much does it rain in Downpatrick?
Downpatrick receives on average 954 mm of precipitation per year, spread over about 167 rainy days.
Is it sunny in Downpatrick?
Downpatrick 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 Downpatrick?
The heaviest 24-hour snowfall measured in Downpatrick between 1940 and 2025 was 22 March 2013, with 14.0 cm.
Are there tropical nights in Downpatrick?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Downpatrick.
What was the most extreme apparent temperature in Downpatrick?
In Downpatrick, between 1940 and 2025, the highest apparent temperature reached 25.8 °C on 17 July 2021, and the lowest was -11.9 °C on 13 January 1987.
Compare Downpatrick with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Downpatrick