Châtelain is drier than 62% of mainland French towns: 718 mm of rain a year
About 718 mm of rain falls in a typical year; July afternoons reach 25.9°C and January nights drop to 2.3°C. Winters are mild: January nights here are milder than in 59% of mainland French towns. Figures from Météo-France’s Coudray station, 4.2 km south-west.
A year in Châtelain at a glance
Each month’s typical high and low in °C, at the Coudray station.
What a year in Châtelain feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Coudray.
About 718 mm of rain a year
December is the wettest month and August the driest. About 21 days a year bring 10 mm or more. 19th wettest of 19 towns of 2,500+ in Mayenne.
Rain by month
Millimeters
44 frosts and 61 days of 25°C a year
On about 44 nights a year the air drops to 0°C or below, and on about 1 days it stays below freezing all day. About 61 days a year reach 25°C, and 16 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Coudray: a frost is a night of 0°C or below, a summer day (jour d’été) 25°C or more, a hot day (forte chaleur) 30°C or more.
The Météo-France station at Coudray
Coudray is 4.2 km south-west of Châtelain. Every figure on this page is the station’s, not a measurement in Châtelain itself.
| Station (Météo-France number) | Coudray (53078001) |
| Distance from the town | 4.2 km south-west |
| Station altitude | 55 m |
| Town altitude (its center) | 68 m |
| Period | 1996–2020 (the station’s own record) |
TownRatings matches each commune to one station with at least 24 years of temperature and rain records: the nearest, counting every 100 m of height difference as 10 km, never across the sea.
How Châtelain compares
Against the 4,385 towns of 2,500 or more in mainland France, each read from its own matched station. The dots are the other towns of 2,500+ in Mayenne.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km. Where a neighbor uses the same station its figures are the same: the differences you’d feel over a few kilometers aren’t in the normals.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Châtelain | Coudray | 25.9°C | 2.3°C | 718 mm |
| Château-Gontier-sur-Mayenne 8.3 km | same station | 25.9°C about the same | 2.3°C about the same | 718 mm |
| Les Hauts-d'Anjou 14 km | same station | 25.9°C about the same | 2.3°C about the same | 718 mm |
| Meslay-du-Maine 16 km | Saint-Georges-le-Fléchard | 25.4°C 0.5°C cooler | 2.3°C about the same | 799 mm |
| Morannes sur Sarthe-Daumeray 18 km | Montreuil-sur-Loir | 26.1°C about the same | 2.5°C about the same | 697 mm |
| Sablé-sur-Sarthe 20 km | same station | 25.9°C about the same | 2.3°C about the same | 718 mm |
| Précigné 21 km | Montreuil-sur-Loir | 26.1°C about the same | 2.5°C about the same | 697 mm |
Châtelain weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Coudray station.
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 8.8°C | 2.3°C | 5.5°C | 70 mm |
| February | 10.3°C | 2.0°C | 6.2°C | 56 mm |
| March | 13.5°C | 3.4°C | 8.5°C | 50 mm |
| April | 17.0°C | 5.0°C | 11.0°C | 53 mm |
| May | 20.5°C | 8.6°C | 14.5°C | 59 mm |
| June | 24.0°C | 11.6°C | 17.8°C | 53 mm |
| July | 25.9°C | 13.1°C | 19.5°C | 46 mm |
| August | 25.9°C | 13.0°C | 19.4°C | 43 mm |
| September | 23.0°C | 10.4°C | 16.7°C | 62 mm |
| October | 17.7°C | 8.4°C | 13.1°C | 71 mm |
| November | 12.4°C | 4.9°C | 8.6°C | 77 mm |
| December | 9.3°C | 2.6°C | 5.9°C | 79 mm |
| Year | 17.4°C | 7.1°C | 12.2°C | 718 mm |
Where Châtelain’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Coudray, 4.2 km away: statistics for 1991–2020 (the station’s own years, 1996–2020, where its record is shorter).
- Which station: among stations with at least 24 of the 30 years of temperature and rain, the nearest to the commune’s population-weighted center, counting each 100 m of height difference as 10 km; mainland towns use mainland stations and each overseas département its own.
- Altitudes: the town’s from IGN’s RGE ALTI® at its population-weighted center; the station’s from Météo-France.
- Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Mayenne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Châtelain’s climate
How warm does Châtelain get in summer?
July is the warmest month, with average highs of 25.9°C. About 61 days a year reach 25°C, more than 50% of mainland French towns, and about 16 reach 30°C.
How cold does Châtelain get in winter?
February nights average 2.0°C. The air drops to 0°C or below on about 44 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Châtelain get?
About 718 mm a year, less than 62% of mainland French towns. December is the wettest month (79 mm) and August the driest (43 mm).
Are these figures for Châtelain itself?
No: they are the normals of the Météo-France station matched to Châtelain, Coudray, 4.2 km away. France publishes its climate normals by station, not by commune; a valley, a hill or the sea can make a difference over a few kilometers.
Where do these figures come from?
Météo-France’s fiches climatologiques: 30-year averages (1991–2020) for each of its long-running stations, published as open data since 2024. They are normals, not a forecast.
Source: Météo-France, fiches climatologiques, 1991–2020 statistics (station COUDRAY, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Châtelain →
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.