Hardly any mainland French towns collect more rain than Chassagne-Saint-Denis: 1,511 mm a year
The warmest part of a July day comes in at 24.4°C on average. Its January nights bite harder than in almost every mainland French town. No month is much wetter than another: December, the wettest, gets little more than April, the driest. An umbrella earns its place on about 150 days a year with 1 mm of rain or more.
These are the figures of Météo-France’s Adam-lès-Vercel station, 23 km north-east.
A year in Chassagne-Saint-Denis at a glance
Each month’s typical high and low in °C, at the Adam-lès-Vercel station.
What a year in Chassagne-Saint-Denis feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Adam-lès-Vercel.
About 1,511 mm of rain a year
December is the wettest month and April the driest. About 55 days a year bring 10 mm or more. 4th wettest of 34 towns of 2,500+ in Doubs.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Besançon
A frosty town: 91 frosts and 50 days of 25°C a year
On about 91 nights a year the air drops to 0°C or below, and on about 14 days it stays below freezing all day. About 50 days a year reach 25°C, and 11 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Adam-lès-Vercel: 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 Adam-lès-Vercel
Adam-lès-Vercel is 23 km north-east of Chassagne-Saint-Denis. Every figure on this page is the station’s, not a measurement in Chassagne-Saint-Denis itself.
| Station (Météo-France number) | Adam-lès-Vercel (25007001) |
| Distance from the town | 23 km north-east |
| Station altitude | 665 m |
| Town altitude (its center) | 551 m |
| Period | 1997–2020 (the station’s own record) |
| Nearest station of any kind | 9.7 km |
| Sunshine measured at | Besançon, 21 km away |
Chassagne-Saint-Denis sits 114 m lower than the station. Air usually warms by about 0.65°C every 100 m you go down, so expect Chassagne-Saint-Denis 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 Chassagne-Saint-Denis 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 Doubs.
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 |
|---|---|---|---|---|
| Chassagne-Saint-Denis | Adam-lès-Vercel | 24.4°C | −2.4°C | 1,511 mm |
| Ornans 3.4 km | Besançon | 25.7°C 1.3°C warmer | 0.1°C 2.5°C milder | 1,157 mm |
| Saône 15 km | Besançon | 25.7°C 1.3°C warmer | 0.1°C 2.5°C milder | 1,157 mm |
| Valdahon 19 km | same station | 24.4°C about the same | −2.4°C about the same | 1,511 mm |
| Besançon 19 km | Besançon | 25.7°C 1.3°C warmer | 0.1°C 2.5°C milder | 1,157 mm |
| Thise 22 km | Besançon | 25.7°C 1.3°C warmer | 0.1°C 2.5°C milder | 1,157 mm |
| École-Valentin 23 km | Besançon | 25.7°C 1.3°C warmer | 0.1°C 2.5°C milder | 1,157 mm |
Chassagne-Saint-Denis weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Adam-lès-Vercel station; sunshine at Besançon.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 5.0°C | −2.4°C | 1.3°C | 125 mm | 68 |
| February | 6.1°C | −2.5°C | 1.8°C | 112 mm | 97 |
| March | 10.3°C | 0.3°C | 5.3°C | 120 mm | 153 |
| April | 14.7°C | 3.5°C | 9.1°C | 108 mm | 184 |
| May | 18.5°C | 7.4°C | 13.0°C | 136 mm | 208 |
| June | 22.6°C | 11.1°C | 16.9°C | 125 mm | 231 |
| July | 24.4°C | 12.9°C | 18.7°C | 121 mm | 249 |
| August | 24.1°C | 12.7°C | 18.4°C | 132 mm | 237 |
| September | 20.0°C | 9.3°C | 14.6°C | 108 mm | 184 |
| October | 15.6°C | 6.0°C | 10.8°C | 141 mm | 132 |
| November | 9.5°C | 1.5°C | 5.5°C | 134 mm | 75 |
| December | 5.9°C | −1.3°C | 2.3°C | 151 mm | 56 |
| Year | 14.7°C | 4.9°C | 9.8°C | 1,511 mm | 1,873 |
Where Chassagne-Saint-Denis’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Adam-lès-Vercel, 23 km away: statistics for 1991–2020 (the station’s own years, 1997–2020, 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.
- Sunshine: the nearest station with at least 10 years of sunshine records, Besançon, 21 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 Doubs.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Chassagne-Saint-Denis’s climate
How warm does Chassagne-Saint-Denis get in summer?
July is the warmest month, with average highs of 24.4°C. About 50 days a year reach 25°C, fewer than 68% of mainland French towns, and about 11 reach 30°C.
How cold does Chassagne-Saint-Denis get in winter?
February nights average −2.5°C. The air drops to 0°C or below on about 91 nights a year, and about 14 days a year stay below freezing all day.
How much rain does Chassagne-Saint-Denis get?
About 1,511 mm a year, more than almost every mainland French town. December is the wettest month (151 mm) and April the driest (108 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Besançon (21 km away), averages 1,873 hours of sunshine a year.
Are these figures for Chassagne-Saint-Denis itself?
No: they are the normals of the Météo-France station matched to Chassagne-Saint-Denis, Adam-lès-Vercel, 23 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 ADAM-LES-VERCEL, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Chassagne-Saint-Denis →
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.