Tullamore climate — normals and trends
Tullamore (Ireland) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.8 °C and it receives 836 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 (15.5 °C on average) and the coldest is January (5.0 °C). Rainfall peaks in December.
Tullamore averages 27 frost days, 0 hot days (≥ 30 °C) and 156 rainy days per year.
Tullamore has warmed by +0.6 °C between 1940 and 2025, or +0.07 °C per decade. This trend is statistically significant.
The number of frost days there went from about 34 to 20 per year over the period.
The hottest day of the period reached 30.2 °C (on 29 June 1976) and the coldest -12.5 °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
TullamoreLeinster
- coords
- 53.27°, -7.49°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.8°C
Average daily high
12.9°C
Average daily low
6.8°C
Annual rainfall
836mm
Sunshine / day
6.8h
Mean relative humidity
82%
Average peak wind
19.7km/h
Seasonal range
10.5°C
Frost days (< 0 °C)
27 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
156 d/yr
Annual snowfall
9.7 cm
Average feels-like high
10.2 °C
Average feels-like low
3.9 °C
Average peak gust
41.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.6 °C
since 1940
+0.1 °C per decade · r² = 0.11 · p = 0.002
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
30.2 °C
29 June 1976
Coldest day
-12.5 °C
25 December 2010
Wettest day
63 mm
25 August 1986
Windiest day
66.4 km/h
16 September 1961
Strongest gust
132.5 km/h
24 December 1999
Hottest feels-like
33.0 °C
29 July 1948
Coldest feels-like
-16.7 °C
12 January 1982
Snowiest day
24.2 cm
8 December 1954
Sunniest day
16.7 h
19 June 2025
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 | 7.2 °C | -0.1 °C | 73 mm | -0 mm |
| Feb | 9.0 °C | +1.1 °C | 70 mm | +11 mm |
| Mar | 11.8 °C | +1.9 °C | 24 mm | -39 mm |
| Apr | 15.1 °C | +3.0 °C | 88 mm | +28 mm |
| May | 17.5 °C | +2.5 °C | 52 mm | -20 mm |
| Jun | 18.6 °C | +1.0 °C | 73 mm | +5 mm |
| Jul | 20.3 °C | +1.5 °C | 67 mm | -2 mm |
| Aug | 20.0 °C | +1.4 °C | 41 mm | -36 mm |
| Sep | 16.1 °C | -0.4 °C | 99 mm | +28 mm |
| Oct | 13.4 °C | +0.1 °C | 106 mm | +30 mm |
| Nov | 10.6 °C | +0.9 °C | 121 mm | +50 mm |
| Dec | 9.1 °C | +1.2 °C | 87 mm | +9 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 Tullamore?
Tullamore has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.8 °C and it receives 836 mm of precipitation per year.
What is the hottest day ever recorded in Tullamore?
The hottest day measured in Tullamore between 1940 and 2025 was 29 June 1976, reaching 30.2 °C.
What is the coldest day in Tullamore?
The coldest day measured in Tullamore between 1940 and 2025 was 25 December 2010, at -12.5 °C.
Does it snow in Tullamore?
Yes. Tullamore gets on average 9.7 cm of snow per year and has around 27 frost days.
Has the climate of Tullamore warmed?
Yes: Tullamore warmed by +0.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tullamore?
The wettest day measured in Tullamore between 1940 and 2025 was 25 August 1986, with 63 mm of rain in 24 hours.
What was the windiest day in Tullamore?
The windiest day measured in Tullamore between 1940 and 2025 was 16 September 1961, with winds reaching 66.4 km/h.
What is the warmest month in Tullamore?
The warmest month in Tullamore is July (15.5 °C on average); the coldest is January (5.0 °C).
How much does it rain in Tullamore?
Tullamore receives on average 836 mm of precipitation per year, spread over about 156 rainy days.
Is it sunny in Tullamore?
Tullamore 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 Tullamore?
The heaviest 24-hour snowfall measured in Tullamore between 1940 and 2025 was 8 December 1954, with 24.2 cm.
Are there tropical nights in Tullamore?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Tullamore.
What was the most extreme apparent temperature in Tullamore?
In Tullamore, between 1940 and 2025, the highest apparent temperature reached 33.0 °C on 29 July 1948, and the lowest was -16.7 °C on 12 January 1982.
Compare Tullamore with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tullamore