Vongnes has some of the coldest winter nights among mainland French towns
On a normal July day the thermometer tops out near 27.5°C. Winter and summer sit 30°C apart. Rain is plentiful here, more than falls on 98% of mainland French towns. Frost greets about 91 mornings a year, so leave time to clear the car.
Figures from Météo-France’s Mognard station, 19 km east.
A year in Vongnes at a glance
Each month’s typical high and low in °C, at the Mognard station.
What a year in Vongnes feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Mognard.
About 1,280 mm of rain a year
October is the wettest month and February the driest. About 46 days a year bring 10 mm or more. 8th 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: 91 frosts and 78 days of 25°C a year
On about 91 nights a year the air drops to 0°C or below, and on about 5 days it stays below freezing all day. About 78 days a year reach 25°C, and 26 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Mognard: 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 Mognard
Mognard is 19 km east of Vongnes. Every figure on this page is the station’s, not a measurement in Vongnes itself.
| Station (Météo-France number) | Mognard (73158001) |
| Distance from the town | 19 km east |
| Station altitude | 340 m |
| Town altitude (its center) | 317 m |
| Period | 1991–2020 |
| Nearest station of any kind | 5.9 km |
| Sunshine measured at | Chambery-Aix, 23 km away |
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 Vongnes 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 |
|---|---|---|---|---|
| Vongnes | Mognard | 27.5°C | −2.0°C | 1,280 mm |
| Culoz-Béon 5.7 km | Bloye | 27.8°C about the same | −1.5°C 0.5°C milder | 1,207 mm |
| Belley 7.2 km | Chambery-Aix | 27.8°C about the same | −0.7°C 1.3°C milder | 1,204 mm |
| Yenne 13 km | Chambery-Aix | 27.8°C about the same | −0.7°C 1.3°C milder | 1,204 mm |
| La Biolle 17 km | same station | 27.5°C about the same | −2.0°C about the same | 1,280 mm |
| Entrelacs 17 km | Bloye | 27.8°C about the same | −1.5°C 0.5°C milder | 1,207 mm |
| Rumilly 18 km | Bloye | 27.8°C about the same | −1.5°C 0.5°C milder | 1,207 mm |
Vongnes weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Mognard station; sunshine at Chambery-Aix.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 5.6°C | −2.0°C | 1.8°C | 100 mm | 77 |
| February | 8.0°C | −1.8°C | 3.1°C | 84 mm | 102 |
| March | 13.2°C | 0.8°C | 7.0°C | 94 mm | 158 |
| April | 17.0°C | 3.9°C | 10.5°C | 97 mm | 176 |
| May | 21.2°C | 8.3°C | 14.7°C | 109 mm | 202 |
| June | 25.1°C | 11.9°C | 18.5°C | 108 mm | 236 |
| July | 27.5°C | 13.2°C | 20.4°C | 98 mm | 262 |
| August | 27.0°C | 13.0°C | 20.0°C | 113 mm | 237 |
| September | 22.2°C | 9.6°C | 15.9°C | 113 mm | 181 |
| October | 16.8°C | 6.4°C | 11.6°C | 125 mm | 124 |
| November | 10.1°C | 1.8°C | 5.9°C | 118 mm | 75 |
| December | 6.0°C | −1.2°C | 2.4°C | 123 mm | 66 |
| Year | 16.6°C | 5.3°C | 11.0°C | 1,280 mm | 1,895 |
Where Vongnes’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Mognard, 19 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, 23 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 Vongnes’s climate
How warm does Vongnes get in summer?
July is the warmest month, with average highs of 27.5°C. About 78 days a year reach 25°C, more than 70% of mainland French towns, and about 26 reach 30°C.
How cold does Vongnes get in winter?
January nights average −2.0°C. The air drops to 0°C or below on about 91 nights a year, and about 5 days a year stay below freezing all day.
How much rain does Vongnes get?
About 1,280 mm a year, more than 98% of mainland French towns. October is the wettest month (125 mm) and February the driest (84 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Chambery-Aix (23 km away), averages 1,895 hours of sunshine a year.
Are these figures for Vongnes itself?
No: they are the normals of the Météo-France station matched to Vongnes, Mognard, 19 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 MOGNARD, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Vongnes →
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.