Roscrea climate — normals and trends
Roscrea (Ireland) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 9.5 °C and it receives 884 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 (15.1 °C on average) and the coldest is January (4.7 °C). Rainfall peaks in December.
Roscrea averages 28 frost days, 0 hot days (≥ 30 °C) and 160 rainy days per year.
Roscrea has warmed by +0.5 °C between 1940 and 2025, or +0.06 °C per decade. This trend is statistically significant.
The number of frost days there went from about 36 to 20 per year over the period.
The hottest day of the period reached 30.2 °C (on 29 June 1976) and the coldest -11.1 °C (on 3 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
RoscreaMunster
- coords
- 52.95°, -7.80°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
9.5°C
Average daily high
12.5°C
Average daily low
6.6°C
Annual rainfall
884mm
Sunshine / day
6.7h
Mean relative humidity
83%
Average peak wind
19.4km/h
Seasonal range
10.4°C
Frost days (< 0 °C)
28 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
160 d/yr
Annual snowfall
11.7 cm
Average feels-like high
9.9 °C
Average feels-like low
3.7 °C
Average peak gust
42.7 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.5 °C
since 1940
+0.1 °C per decade · r² = 0.09 · p = 0.004
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
-11.1 °C
3 December 2010
Wettest day
69 mm
25 August 1986
Windiest day
65.5 km/h
24 December 1997
Strongest gust
131.4 km/h
23 April 1947
Hottest feels-like
33.0 °C
13 July 1983
Coldest feels-like
-15.8 °C
3 December 2010
Snowiest day
21.1 cm
8 December 1954
Sunniest day
16.7 h
20 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 | 6.9 °C | -0.1 °C | 83 mm | +6 mm |
| Feb | 8.7 °C | +1.1 °C | 77 mm | +14 mm |
| Mar | 11.4 °C | +1.9 °C | 28 mm | -39 mm |
| Apr | 14.8 °C | +3.0 °C | 85 mm | +20 mm |
| May | 17.4 °C | +2.8 °C | 67 mm | -12 mm |
| Jun | 18.2 °C | +1.0 °C | 68 mm | -3 mm |
| Jul | 19.9 °C | +1.4 °C | 81 mm | +8 mm |
| Aug | 19.6 °C | +1.4 °C | 46 mm | -33 mm |
| Sep | 15.7 °C | -0.4 °C | 104 mm | +30 mm |
| Oct | 13.1 °C | +0.2 °C | 112 mm | +32 mm |
| Nov | 10.4 °C | +1.0 °C | 122 mm | +48 mm |
| Dec | 8.6 °C | +0.9 °C | 89 mm | +7 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 Roscrea?
Roscrea has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 9.5 °C and it receives 884 mm of precipitation per year.
What is the hottest day ever recorded in Roscrea?
The hottest day measured in Roscrea between 1940 and 2025 was 29 June 1976, reaching 30.2 °C.
What is the coldest day in Roscrea?
The coldest day measured in Roscrea between 1940 and 2025 was 3 December 2010, at -11.1 °C.
Does it snow in Roscrea?
Yes. Roscrea gets on average 11.7 cm of snow per year and has around 28 frost days.
Has the climate of Roscrea warmed?
Yes: Roscrea warmed by +0.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Roscrea?
The wettest day measured in Roscrea between 1940 and 2025 was 25 August 1986, with 69 mm of rain in 24 hours.
What was the windiest day in Roscrea?
The windiest day measured in Roscrea between 1940 and 2025 was 24 December 1997, with winds reaching 65.5 km/h.
What is the warmest month in Roscrea?
The warmest month in Roscrea is July (15.1 °C on average); the coldest is January (4.7 °C).
How much does it rain in Roscrea?
Roscrea receives on average 884 mm of precipitation per year, spread over about 160 rainy days.
Is it sunny in Roscrea?
Roscrea gets on average 6.7 hours of sunshine per day, roughly 2,446 hours per year over 1940-2025.
What is the biggest single-day snowfall in Roscrea?
The heaviest 24-hour snowfall measured in Roscrea between 1940 and 2025 was 8 December 1954, with 21.1 cm.
Are there tropical nights in Roscrea?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Roscrea.
What was the most extreme apparent temperature in Roscrea?
In Roscrea, between 1940 and 2025, the highest apparent temperature reached 33.0 °C on 13 July 1983, and the lowest was -15.8 °C on 3 December 2010.
Compare Roscrea with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Roscrea