Mézilles gets more frosts than 89% of mainland French towns
In July the day’s top temperature is typically 25.5°C. None of the 19 towns of 2,500+ in Yonne gets more rain. Rain peaks in December and eases off in August. Garden chairs stay out from June to September, the months with highs of 21–26°C.
These are the figures of Météo-France’s Saint-Fargeau station, 8.6 km south.
A year in Mézilles at a glance
Each month’s typical high and low in °C, at the Saint-Fargeau station.
What a year in Mézilles feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Saint-Fargeau.
About 870 mm of rain a year
December is the wettest month and August the driest. About 26 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: 67 frosts and 54 days of 25°C a year
On about 67 nights a year the air drops to 0°C or below, and on about 6 days it stays below freezing all day. About 54 days a year reach 25°C, and 14 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Saint-Fargeau: 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 Saint-Fargeau
Saint-Fargeau is 8.6 km south of Mézilles. Every figure on this page is the station’s, not a measurement in Mézilles itself.
| Station (Météo-France number) | Saint-Fargeau (89273001) |
| Distance from the town | 8.6 km south |
| Station altitude | 258 m |
| Town altitude (its center) | 220 m |
| Period | 1991–2020 |
| Sunshine measured at | Nevers-Marzy, 78 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 Mézilles 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, each with its own matched station.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Mézilles | Saint-Fargeau | 25.5°C | 0.6°C | 870 mm |
| Toucy 9.9 km | Grandchamp | 25.8°C about the same | 1.2°C 0.6°C milder | 759 mm |
| Charny Orée de Puisaye 21 km | Grandchamp | 25.8°C about the same | 1.2°C 0.6°C milder | 759 mm |
| Montholon 25 km | Aillant | 27.5°C 2°C warmer | 0.3°C about the same | 727 mm |
Mézilles weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Saint-Fargeau station; sunshine at Nevers-Marzy.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.5°C | 0.6°C | 3.5°C | 76 mm | 63 |
| February | 8.0°C | 0.3°C | 4.1°C | 64 mm | 91 |
| March | 12.1°C | 2.0°C | 7.1°C | 65 mm | 154 |
| April | 15.6°C | 4.1°C | 9.9°C | 68 mm | 181 |
| May | 19.4°C | 7.8°C | 13.6°C | 76 mm | 205 |
| June | 23.2°C | 11.1°C | 17.1°C | 69 mm | 226 |
| July | 25.5°C | 12.7°C | 19.1°C | 68 mm | 245 |
| August | 25.4°C | 12.5°C | 18.9°C | 63 mm | 236 |
| September | 21.2°C | 9.4°C | 15.3°C | 70 mm | 189 |
| October | 16.4°C | 7.2°C | 11.8°C | 83 mm | 123 |
| November | 10.3°C | 3.4°C | 6.9°C | 82 mm | 72 |
| December | 7.1°C | 1.2°C | 4.2°C | 87 mm | 59 |
| Year | 15.9°C | 6.0°C | 11.0°C | 870 mm | 1,844 |
Where Mézilles’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Saint-Fargeau, 8.6 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, 78 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 Mézilles’s climate
How warm does Mézilles get in summer?
July is the warmest month, with average highs of 25.5°C. About 54 days a year reach 25°C, fewer than 64% of mainland French towns, and about 14 reach 30°C.
How cold does Mézilles get in winter?
February nights average 0.3°C. The air drops to 0°C or below on about 67 nights a year, and about 6 days a year stay below freezing all day.
How much rain does Mézilles get?
About 870 mm a year, more than 74% of mainland French towns. December is the wettest month (87 mm) and August the driest (63 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Nevers-Marzy (78 km away), averages 1,844 hours of sunshine a year.
Are these figures for Mézilles itself?
No: they are the normals of the Météo-France station matched to Mézilles, Saint-Fargeau, 8.6 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 ST FARGEAU_SAPC, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Mézilles →
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.