Dungannon climate — normals and trends
Dungannon (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.3 °C and it receives 865 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 (15.0 °C on average) and the coldest is January (4.4 °C). Rainfall peaks in August.
Dungannon averages 32 frost days, 0 hot days (≥ 30 °C) and 166 rainy days per year.
Dungannon 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 43 to 21 per year over the period.
The hottest day of the period reached 28.6 °C (on 28 June 2018) and the coldest -13.8 °C (on 19 January 1955).
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
DungannonNorthern Ireland
- coords
- 54.50°, -6.77°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.3°C
Average daily high
12.3°C
Average daily low
6.4°C
Annual rainfall
865mm
Sunshine / day
6.8h
Mean relative humidity
83%
Average peak wind
19.6km/h
Seasonal range
10.6°C
Frost days (< 0 °C)
32 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
166 d/yr
Annual snowfall
18.5 cm
Average feels-like high
9.6 °C
Average feels-like low
3.5 °C
Average peak gust
41.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.23 · 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
28.6 °C
28 June 2018
Coldest day
-13.8 °C
19 January 1955
Wettest day
47 mm
6 September 2010
Windiest day
61.2 km/h
16 September 1961
Strongest gust
125.3 km/h
26 December 1998
Hottest feels-like
31.8 °C
29 July 1948
Coldest feels-like
-18.5 °C
1 March 1947
Snowiest day
20.2 cm
22 March 2013
Sunniest day
17.0 h
19 June 1941
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 | 6.8 °C | +0.2 °C | 41 mm | -34 mm |
| Feb | 8.3 °C | +1.0 °C | 64 mm | +4 mm |
| Mar | 11.3 °C | +2.2 °C | 23 mm | -41 mm |
| Apr | 14.5 °C | +3.0 °C | 88 mm | +24 mm |
| May | 17.3 °C | +2.9 °C | 53 mm | -20 mm |
| Jun | 17.8 °C | +0.8 °C | 107 mm | +37 mm |
| Jul | 19.5 °C | +1.3 °C | 85 mm | +10 mm |
| Aug | 19.5 °C | +1.5 °C | 53 mm | -30 mm |
| Sep | 15.5 °C | -0.4 °C | 106 mm | +31 mm |
| Oct | 12.8 °C | +0.1 °C | 117 mm | +39 mm |
| Nov | 10.0 °C | +0.8 °C | 104 mm | +33 mm |
| Dec | 8.5 °C | +1.2 °C | 87 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 Dungannon?
Dungannon has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.3 °C and it receives 865 mm of precipitation per year.
What is the hottest day ever recorded in Dungannon?
The hottest day measured in Dungannon between 1940 and 2025 was 28 June 2018, reaching 28.6 °C.
What is the coldest day in Dungannon?
The coldest day measured in Dungannon between 1940 and 2025 was 19 January 1955, at -13.8 °C.
Does it snow in Dungannon?
Yes. Dungannon gets on average 18.5 cm of snow per year and has around 32 frost days.
Has the climate of Dungannon warmed?
Yes: Dungannon warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dungannon?
The wettest day measured in Dungannon between 1940 and 2025 was 6 September 2010, with 47 mm of rain in 24 hours.
What was the windiest day in Dungannon?
The windiest day measured in Dungannon between 1940 and 2025 was 16 September 1961, with winds reaching 61.2 km/h.
What is the warmest month in Dungannon?
The warmest month in Dungannon is July (15.0 °C on average); the coldest is January (4.4 °C).
How much does it rain in Dungannon?
Dungannon receives on average 865 mm of precipitation per year, spread over about 166 rainy days.
Is it sunny in Dungannon?
Dungannon gets on average 6.8 hours of sunshine per day, roughly 2,482 hours per year over 1940-2025.
What is the biggest single-day snowfall in Dungannon?
The heaviest 24-hour snowfall measured in Dungannon between 1940 and 2025 was 22 March 2013, with 20.2 cm.
Are there tropical nights in Dungannon?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Dungannon.
What was the most extreme apparent temperature in Dungannon?
In Dungannon, between 1940 and 2025, the highest apparent temperature reached 31.8 °C on 29 July 1948, and the lowest was -18.5 °C on 1 March 1947.
Compare Dungannon with another city
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Nearby cities
The climate around Dungannon