Chalancon has some of the coldest winter nights among mainland French towns
July afternoons average 25.9°C. Only 27°C separates winter nights from summer afternoons. By rainfall alone, it ranks wetter than 88% of mainland French towns. Radiators earn their keep from November to April, the months that average under 10°C.
Figures from Météo-France’s Bellegarde-en-D station, 9.9 km east.
A year in Chalancon at a glance
Each month’s typical high and low in °C, at the Bellegarde-en-D station.
What a year in Chalancon feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Bellegarde-en-D.
About 1,017 mm of rain a year
November is the wettest month and February the driest. About 35 days a year bring 10 mm or more. 2nd wettest of 40 towns of 2,500+ in Drôme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Montélimar
A frosty town: 82 frosts and 59 days of 25°C a year
On about 82 nights a year the air drops to 0°C or below, and on about 6 days it stays below freezing all day. About 59 days a year reach 25°C, and 12 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Bellegarde-en-D: 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 Bellegarde-en-D
Bellegarde-en-D is 9.9 km east of Chalancon. Every figure on this page is the station’s, not a measurement in Chalancon itself.
| Station (Météo-France number) | Bellegarde-en-D (26047001) |
| Distance from the town | 9.9 km east |
| Station altitude | 1,017 m |
| Town altitude (its center) | 903 m |
| Period | 1991–2020 |
| Nearest station of any kind | 6 km |
| Sunshine measured at | Montélimar, 48 km away |
Chalancon sits 114 m lower than the station. Air usually warms by about 0.65°C every 100 m you go down, so expect Chalancon to run about 0.7°C warmer than these figures.
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 Chalancon 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 Drôme.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km, each with its own matched station.
Chalancon weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Bellegarde-en-D station; sunshine at Montélimar.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.7°C | −1.3°C | 2.7°C | 75 mm | 107 |
| February | 7.7°C | −1.5°C | 3.1°C | 57 mm | 136 |
| March | 11.5°C | 1.2°C | 6.4°C | 68 mm | 200 |
| April | 14.3°C | 3.7°C | 9.0°C | 90 mm | 219 |
| May | 18.5°C | 7.4°C | 13.0°C | 95 mm | 260 |
| June | 22.8°C | 11.0°C | 16.9°C | 70 mm | 300 |
| July | 25.9°C | 13.1°C | 19.5°C | 59 mm | 330 |
| August | 25.9°C | 13.2°C | 19.6°C | 64 mm | 299 |
| September | 21.0°C | 9.6°C | 15.3°C | 102 mm | 231 |
| October | 16.2°C | 6.7°C | 11.4°C | 118 mm | 156 |
| November | 10.3°C | 2.2°C | 6.3°C | 130 mm | 110 |
| December | 7.2°C | −0.5°C | 3.3°C | 88 mm | 95 |
| Year | 15.7°C | 5.4°C | 10.5°C | 1,017 mm | 2,441 |
Where Chalancon’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Bellegarde-en-D, 9.9 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, Montélimar, 48 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 Drôme.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Chalancon’s climate
How warm does Chalancon get in summer?
July is the warmest month, with average highs of 25.9°C. About 59 days a year reach 25°C, fewer than 54% of mainland French towns, and about 12 reach 30°C.
How cold does Chalancon get in winter?
February nights average −1.5°C. The air drops to 0°C or below on about 82 nights a year, and about 6 days a year stay below freezing all day.
How much rain does Chalancon get?
About 1,017 mm a year, more than 88% of mainland French towns. November is the wettest month (130 mm) and February the driest (57 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Montélimar (48 km away), averages 2,441 hours of sunshine a year.
Are these figures for Chalancon itself?
No: they are the normals of the Météo-France station matched to Chalancon, Bellegarde-en-D, 9.9 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 BELLEGARDE-EN-D, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Chalancon →
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.