Frost comes to Fouronnes more often than to 78% of mainland French towns
In July the day’s top temperature is typically 26.4°C. Wet weather is most frequent in October and least in March. An umbrella earns its place on about 135 days a year with 1 mm of rain or more.
Figures from Météo-France’s Merry-sur-Yonne station, 5.7 km south-east.
A year in Fouronnes at a glance
Each month’s typical high and low in °C, at the Merry-sur-Yonne station.
What a year in Fouronnes feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Merry-sur-Yonne.
About 777 mm of rain a year
October is the wettest month and March the driest. About 23 days a year bring 10 mm or more. The wettest of 19 towns of 2,500+ in Yonne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Nevers-Marzy
A frosty town: 58 frosts and 63 days of 25°C a year
On about 58 nights a year the air drops to 0°C or below, and on about 6 days it stays below freezing all day. About 63 days a year reach 25°C, and 21 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Merry-sur-Yonne: 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 Merry-sur-Yonne
Merry-sur-Yonne is 5.7 km south-east of Fouronnes. Every figure on this page is the station’s, not a measurement in Fouronnes itself.
| Station (Météo-France number) | Merry-sur-Yonne (89253001) |
| Distance from the town | 5.7 km south-east |
| Station altitude | 225 m |
| Town altitude (its center) | 256 m |
| Period | 1991–2020 |
| Sunshine measured at | Nevers-Marzy, 76 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 Fouronnes 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 |
|---|---|---|---|---|
| Fouronnes | Merry-sur-Yonne | 26.4°C | 0.8°C | 777 mm |
| Clamecy 18 km | same station | 26.4°C about the same | 0.8°C about the same | 777 mm |
| Auxerre 21 km | Aillant | 27.5°C 1.1°C warmer | 0.3°C 0.5°C colder | 727 mm |
| Saint-Georges-sur-Baulche 21 km | Aillant | 27.5°C 1.1°C warmer | 0.3°C 0.5°C colder | 727 mm |
| Toucy 24 km | Grandchamp | 25.8°C 0.6°C cooler | 1.2°C about the same | 759 mm |
| Monéteau 26 km | Aillant | 27.5°C 1.1°C warmer | 0.3°C 0.5°C colder | 727 mm |
Fouronnes weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Merry-sur-Yonne station; sunshine at Nevers-Marzy.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.5°C | 0.8°C | 3.7°C | 63 mm | 63 |
| February | 8.0°C | 0.7°C | 4.4°C | 56 mm | 91 |
| March | 12.4°C | 2.9°C | 7.7°C | 55 mm | 154 |
| April | 16.0°C | 5.0°C | 10.5°C | 65 mm | 181 |
| May | 19.8°C | 8.6°C | 14.2°C | 72 mm | 205 |
| June | 23.7°C | 11.9°C | 17.8°C | 64 mm | 226 |
| July | 26.4°C | 13.8°C | 20.1°C | 60 mm | 245 |
| August | 26.2°C | 13.7°C | 20.0°C | 57 mm | 236 |
| September | 21.6°C | 10.2°C | 15.9°C | 58 mm | 189 |
| October | 16.4°C | 7.8°C | 12.1°C | 78 mm | 123 |
| November | 10.5°C | 4.0°C | 7.2°C | 75 mm | 72 |
| December | 7.1°C | 1.6°C | 4.4°C | 76 mm | 59 |
| Year | 16.2°C | 6.8°C | 11.5°C | 777 mm | 1,844 |
Where Fouronnes’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Merry-sur-Yonne, 5.7 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, Nevers-Marzy, 76 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 Fouronnes’s climate
How warm does Fouronnes get in summer?
July is the warmest month, with average highs of 26.4°C. About 63 days a year reach 25°C, more than 54% of mainland French towns, and about 21 reach 30°C.
How cold does Fouronnes get in winter?
February nights average 0.7°C. The air drops to 0°C or below on about 58 nights a year, and about 6 days a year stay below freezing all day.
How much rain does Fouronnes get?
About 777 mm a year, more than 55% of mainland French towns. October is the wettest month (78 mm) and March the driest (55 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Nevers-Marzy (76 km away), averages 1,844 hours of sunshine a year.
Are these figures for Fouronnes itself?
No: they are the normals of the Météo-France station matched to Fouronnes, Merry-sur-Yonne, 5.7 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 MERRY-SUR-YONNE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Fouronnes →
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.