Rousson is drier than 84% of mainland French towns: 645 mm of rain a year
January mornings start at about 1.7°C. About 47 nights a year bring a frost, more than in 65% of mainland French towns. No month is much wetter than another: October, the wettest, gets little more than March, the driest. Central heating does most of its work from November to March, in months below 10°C on average.
Figures from Météo-France’s Sens station, 8.4 km north.
A year in Rousson at a glance
Each month’s typical high and low in °C, at the Sens station.
What a year in Rousson feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Sens.
About 645 mm of rain a year
October is the wettest month and March the driest. About 16 days a year bring 10 mm or more. 16th wettest of 19 towns of 2,500+ in Yonne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Troyes-Barberey
47 frosts and 63 days of 25°C a year
On about 47 nights a year the air drops to 0°C or below, and on about 4 days it stays below freezing all day. About 63 days a year reach 25°C, and 18 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Sens: 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 Sens
Sens is 8.4 km north of Rousson. Every figure on this page is the station’s, not a measurement in Rousson itself.
| Station (Météo-France number) | Sens (89387002) |
| Distance from the town | 8.4 km north |
| Station altitude | 70 m |
| Town altitude (its center) | 93 m |
| Period | 1991–2020 |
| Sunshine measured at | Troyes-Barberey, 62 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 Rousson 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 Yonne.
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 |
|---|---|---|---|---|
| Rousson | Sens | 26.5°C | 1.7°C | 645 mm |
| Villeneuve-sur-Yonne 3 km | same station | 26.5°C about the same | 1.7°C about the same | 645 mm |
| Paron 10 km | same station | 26.5°C about the same | 1.7°C about the same | 645 mm |
| Sens 12 km | same station | 26.5°C about the same | 1.7°C about the same | 645 mm |
| Saint-Clément 14 km | same station | 26.5°C about the same | 1.7°C about the same | 645 mm |
| Joigny 17 km | Aillant | 27.5°C 1°C warmer | 0.3°C 1.4°C colder | 727 mm |
| Courtenay 17 km | Savigny/Clairis | 25.6°C 0.9°C cooler | 1.4°C about the same | 732 mm |
Rousson weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Sens station; sunshine at Troyes-Barberey.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.2°C | 1.7°C | 4.4°C | 51 mm | 63 |
| February | 8.7°C | 1.4°C | 5.1°C | 48 mm | 90 |
| March | 12.9°C | 3.3°C | 8.1°C | 46 mm | 148 |
| April | 16.5°C | 5.3°C | 10.9°C | 53 mm | 190 |
| May | 20.2°C | 9.1°C | 14.7°C | 60 mm | 216 |
| June | 23.8°C | 12.2°C | 18.0°C | 52 mm | 231 |
| July | 26.5°C | 14.0°C | 20.2°C | 56 mm | 242 |
| August | 26.4°C | 13.7°C | 20.1°C | 48 mm | 232 |
| September | 22.1°C | 10.5°C | 16.3°C | 51 mm | 186 |
| October | 17.1°C | 8.1°C | 12.6°C | 63 mm | 125 |
| November | 11.1°C | 4.6°C | 7.9°C | 56 mm | 70 |
| December | 7.7°C | 2.3°C | 5.0°C | 62 mm | 57 |
| Year | 16.7°C | 7.2°C | 11.9°C | 645 mm | 1,851 |
Where Rousson’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Sens, 8.4 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, Troyes-Barberey, 62 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 Yonne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Rousson’s climate
How warm does Rousson get in summer?
July is the warmest month, with average highs of 26.5°C. About 63 days a year reach 25°C, more than 53% of mainland French towns, and about 18 reach 30°C.
How cold does Rousson get in winter?
February nights average 1.4°C. The air drops to 0°C or below on about 47 nights a year, and about 4 days a year stay below freezing all day.
How much rain does Rousson get?
About 645 mm a year, less than 84% of mainland French towns. October is the wettest month (63 mm) and March the driest (46 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Troyes-Barberey (62 km away), averages 1,851 hours of sunshine a year.
Are these figures for Rousson itself?
No: they are the normals of the Météo-France station matched to Rousson, Sens, 8.4 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 SENS, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Rousson →
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.