Groslée-Saint-Benoit is among the wettest of mainland French towns: 1,204 mm of rain a year
January mornings start at about −0.7°C. The rainiest month is December; the driest is February. Winter nights are cold: in January they are colder than in 92% of mainland French towns. If you like long walks, May, June and September offer highs of 21–25°C.
These are the figures of Météo-France’s Chambery-Aix station, 24 km east.
A year in Groslée-Saint-Benoit at a glance
Each month’s typical high and low in °C, at the Chambery-Aix station.
What a year in Groslée-Saint-Benoit feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Chambery-Aix.
About 1,204 mm of rain a year
December is the wettest month and February the driest. About 43 days a year bring 10 mm or more. 9th wettest of 60 towns of 2,500+ in Ain.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Chambery-Aix
A frosty town: 66 frosts and 79 days of 25°C a year
On about 66 nights a year the air drops to 0°C or below, and on about 3 days it stays below freezing all day. About 79 days a year reach 25°C, and 25 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Chambery-Aix: 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 Chambery-Aix
Chambery-Aix is 24 km east of Groslée-Saint-Benoit. Every figure on this page is the station’s, not a measurement in Groslée-Saint-Benoit itself.
| Station (Météo-France number) | Chambery-Aix (73329001) |
| Distance from the town | 24 km east |
| Station altitude | 235 m |
| Town altitude (its center) | 207 m |
| Period | 1991–2020 |
| Nearest station of any kind | 12 km |
| Sunshine measured at | the same station |
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 Groslée-Saint-Benoit 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 Ain.
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 |
|---|---|---|---|---|
| Groslée-Saint-Benoit | Chambery-Aix | 27.8°C | −0.7°C | 1,204 mm |
| Les Avenières Veyrins-Thuellin 7.4 km | Pont-de-Beauvoisin | 28.5°C 0.7°C warmer | −1.2°C 0.5°C colder | 1,166 mm |
| Morestel 8.8 km | Pont-de-Beauvoisin | 28.5°C 0.7°C warmer | −1.2°C 0.5°C colder | 1,166 mm |
| Belley 11 km | same station | 27.8°C about the same | −0.7°C about the same | 1,204 mm |
| Dolomieu 12 km | Pont-de-Beauvoisin | 28.5°C 0.7°C warmer | −1.2°C 0.5°C colder | 1,166 mm |
| Aoste 12 km | Pont-de-Beauvoisin | 28.5°C 0.7°C warmer | −1.2°C 0.5°C colder | 1,166 mm |
| Saint-Genix-les-Villages 13 km | Pont-de-Beauvoisin | 28.5°C 0.7°C warmer | −1.2°C 0.5°C colder | 1,166 mm |
Groslée-Saint-Benoit weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Chambery-Aix station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.4°C | −0.7°C | 2.9°C | 103 mm | 77 |
| February | 8.5°C | −0.4°C | 4.1°C | 79 mm | 102 |
| March | 13.4°C | 2.5°C | 8.0°C | 93 mm | 158 |
| April | 17.3°C | 5.6°C | 11.4°C | 88 mm | 176 |
| May | 21.3°C | 10.0°C | 15.6°C | 101 mm | 202 |
| June | 25.3°C | 13.5°C | 19.4°C | 95 mm | 236 |
| July | 27.8°C | 15.0°C | 21.4°C | 92 mm | 262 |
| August | 27.1°C | 14.6°C | 20.9°C | 98 mm | 237 |
| September | 22.3°C | 11.3°C | 16.8°C | 104 mm | 181 |
| October | 17.0°C | 7.7°C | 12.3°C | 113 mm | 124 |
| November | 10.6°C | 3.1°C | 6.9°C | 115 mm | 75 |
| December | 6.9°C | 0.0°C | 3.4°C | 124 mm | 66 |
| Year | 17.0°C | 6.8°C | 11.9°C | 1,204 mm | 1,895 |
Where Groslée-Saint-Benoit’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Chambery-Aix, 24 km away: statistics for 1991–2020.
- 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.
- Sunshine: the nearest station with at least 10 years of sunshine records, Chambery-Aix, 24 km away.
- Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Ain.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Groslée-Saint-Benoit’s climate
How warm does Groslée-Saint-Benoit get in summer?
July is the warmest month, with average highs of 27.8°C. About 79 days a year reach 25°C, more than 71% of mainland French towns, and about 25 reach 30°C.
How cold does Groslée-Saint-Benoit get in winter?
January nights average −0.7°C. The air drops to 0°C or below on about 66 nights a year, and about 3 days a year stay below freezing all day.
How much rain does Groslée-Saint-Benoit get?
About 1,204 mm a year, more than 96% of mainland French towns. December is the wettest month (124 mm) and February the driest (79 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Chambery-Aix (24 km away), averages 1,895 hours of sunshine a year.
Are these figures for Groslée-Saint-Benoit itself?
No: they are the normals of the Météo-France station matched to Groslée-Saint-Benoit, Chambery-Aix, 24 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 CHAMBERY-AIX, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Groslée-Saint-Benoit →
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.