Summers, winters and rain in Cornant all run close to those of most mainland French towns
July afternoons reach 25.6°C on a typical day and January nights drop to 1.4°C; 732 mm of rain falls in a year. By warm days alone, it ranks cooler than 68% of mainland French towns. Rain peaks in December and eases off in March. From May to September, highs of 19–26°C make it easy to spend the day outdoors.
Figures from Météo-France’s Savigny/Clairis station, 8 km south-west.
A year in Cornant at a glance
Each month’s typical high and low in °C, at the Savigny/Clairis station.
What a year in Cornant feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Savigny/Clairis.
About 732 mm of rain a year
December is the wettest month and March the driest. About 20 days a year bring 10 mm or more. 7th wettest of 19 towns of 2,500+ in Yonne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Melun
48 frosts and 50 days of 25°C a year
On about 48 nights a year the air drops to 0°C or below, and on about 7 days it stays below freezing all day. About 50 days a year reach 25°C, and 14 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Savigny/Clairis: 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 Savigny/Clairis
Savigny/Clairis is 8 km south-west of Cornant. Every figure on this page is the station’s, not a measurement in Cornant itself.
| Station (Météo-France number) | Savigny/Clairis (89380001) |
| Distance from the town | 8 km south-west |
| Station altitude | 184 m |
| Town altitude (its center) | 167 m |
| Period | 1991–2020 |
| Sunshine measured at | Melun, 65 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 Cornant 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 |
|---|---|---|---|---|
| Cornant | Savigny/Clairis | 25.6°C | 1.4°C | 732 mm |
| Paron 7.5 km | Sens | 26.5°C 0.9°C warmer | 1.7°C about the same | 645 mm |
| Villeneuve-sur-Yonne 10 km | Sens | 26.5°C 0.9°C warmer | 1.7°C about the same | 645 mm |
| Sens 10 km | Sens | 26.5°C 0.9°C warmer | 1.7°C about the same | 645 mm |
| Saint-Clément 12 km | Sens | 26.5°C 0.9°C warmer | 1.7°C about the same | 645 mm |
| Courtenay 16 km | same station | 25.6°C about the same | 1.4°C about the same | 732 mm |
| Pont-sur-Yonne 17 km | La Brosse-Mx | 26.4°C 0.8°C warmer | 2.0°C 0.6°C milder | 653 mm |
Cornant weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Savigny/Clairis station; sunshine at Melun.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.3°C | 1.4°C | 3.8°C | 57 mm | 60 |
| February | 7.6°C | 1.2°C | 4.4°C | 54 mm | 83 |
| March | 11.7°C | 3.3°C | 7.5°C | 53 mm | 143 |
| April | 15.3°C | 5.1°C | 10.2°C | 57 mm | 188 |
| May | 19.0°C | 8.6°C | 13.8°C | 65 mm | 216 |
| June | 22.8°C | 11.8°C | 17.3°C | 56 mm | 226 |
| July | 25.6°C | 13.7°C | 19.7°C | 67 mm | 235 |
| August | 25.4°C | 13.7°C | 19.6°C | 57 mm | 225 |
| September | 21.0°C | 10.6°C | 15.8°C | 59 mm | 180 |
| October | 15.9°C | 8.1°C | 12.0°C | 71 mm | 119 |
| November | 10.1°C | 4.5°C | 7.3°C | 66 mm | 68 |
| December | 6.8°C | 2.0°C | 4.4°C | 71 mm | 54 |
| Year | 15.6°C | 7.0°C | 11.3°C | 732 mm | 1,798 |
Where Cornant’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Savigny/Clairis, 8 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, Melun, 65 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 Cornant’s climate
How warm does Cornant get in summer?
July is the warmest month, with average highs of 25.6°C. About 50 days a year reach 25°C, fewer than 68% of mainland French towns, and about 14 reach 30°C.
How cold does Cornant get in winter?
February nights average 1.2°C. The air drops to 0°C or below on about 48 nights a year, and about 7 days a year stay below freezing all day.
How much rain does Cornant get?
About 732 mm a year, less than 58% of mainland French towns. December is the wettest month (71 mm) and March the driest (53 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Melun (65 km away), averages 1,798 hours of sunshine a year.
Are these figures for Cornant itself?
No: they are the normals of the Météo-France station matched to Cornant, Savigny/Clairis, 8 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 SAVIGNY/CLAIRIS, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Cornant →
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.