County Longford climate

Monthly averages for Longford, 2021–2025 · Leinster

Longford is low-lying midland country of bog, lakes and the Shannon callows. It is wetter than the east coast but drier than the west, with cold, often foggy winter nights.

Rain: about 1194 mm falls in a year at Longford, on roughly 188 days, making Longford the 14th wettest of the 32 counties. October is the wettest month (146 mm) and January the driest (81 mm).

Temperature: July is the warmest month, with afternoons averaging 19°C, and January the coldest, with nights averaging 2°C. Frost is rare.

Sunshine: about 2408 hours a year, the 20th sunniest of the 32 counties. May is the sunniest month (9.9 hours a day) and December the dullest (2.9).

Compare Longford with its neighbours →

Rainfall

Average total rainfall each month, in millimetres. 1194 mm a year.

Temperature

Bars run from the average night-time low to the average daytime high, in °C.

Sunshine

Hours of sunshine on an average day in each month. About 2408 hours a year.

Longford and its neighbours
County	Rain mm/yr	Rain days	July high	January low	Sun h/yr
Longford	1194	188	19°C	2°C	2408
Cavan	1106	188	19°C	2°C	2393
Leitrim	1231	192	19°C	3°C	2368
Roscommon	1176	184	19°C	3°C	2326
Westmeath	1079	182	19°C	2°C	2442

Recent extremes, 2021–2025

Hottest day: 30.0°C on 18 July 2022
Coldest night: −3.4°C on 15 December 2022
Wettest day: 63.8 mm on 14 July 2023
Wettest month: July 2023, 224 mm
Driest month: March 2025, 30 mm

Ireland's all-time records are on the records page.

Longford month by month
Month	High °C	Low °C	Rain mm	Rain days	Sun h/day	Wind km/h
January	7	2	81	12	3.9	15
February	9	4	103	16	4.2	19
March	11	4	93	16	5.8	15
April	13	5	85	16	8.4	14
May	16	8	87	15	9.9	13
June	18	10	85	15	9.7	14
July	19	12	110	17	8.6	13
August	19	12	99	16	9.1	14
September	17	10	107	16	7.2	14
October	14	9	146	18	5.1	16
November	10	6	90	15	4.2	16
December	8	4	108	16	2.9	17
Year	13	7	1194	188	2408 h	15

Figures are averages for 2021–2025 at each county town, from the ERA5 weather reanalysis via Open-Meteo. They describe typical lowland weather in each county; hills and exposed coasts are wetter and windier.

Bordering counties: Cavan · Leitrim · Roscommon · Westmeath. All counties: rainfall, temperature, sunshine.