Photo: Baidax · CC BY-SA 4.0Ice on the ground: Avon sees more frosts than 93% of mainland French towns
Midsummer highs settle at about 26.3°C. A year here swings 26°C from midwinter lows to midsummer highs. Plan for rain on about 119 days a year, the days with 1 mm or more.
These are the figures of Météo-France’s Fontainebleau station, 3.8 km west.
A year in Avon at a glance
Each month’s typical high and low in °C, at the Fontainebleau station.
What a year in Avon feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Fontainebleau.
About 740 mm of rain a year
December is the wettest month and March the driest. About 20 days a year bring 10 mm or more. 2nd wettest of 116 towns of 2,500+ in Seine-et-Marne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Melun
A frosty town: 74 frosts and 61 days of 25°C a year
On about 74 nights a year the air drops to 0°C or below, and on about 4 days it stays below freezing all day. About 61 days a year reach 25°C, and 17 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Fontainebleau: 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 Fontainebleau
Fontainebleau is 3.8 km west of Avon. Every figure on this page is the station’s, not a measurement in Avon itself.
| Station (Météo-France number) | Fontainebleau (77186002) |
| Distance from the town | 3.8 km west |
| Station altitude | 84 m |
| Town altitude (its center) | 54 m |
| Period | 1991–2020 |
| Sunshine measured at | Melun, 22 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 Avon 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 Seine-et-Marne.
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 |
|---|---|---|---|---|
| Avon | Fontainebleau | 26.3°C | 0.5°C | 740 mm |
| Fontainebleau 2 km | same station | 26.3°C about the same | 0.5°C about the same | 740 mm |
| Vulaines-sur-Seine 3.3 km | same station | 26.3°C about the same | 0.5°C about the same | 740 mm |
| Thomery 4.2 km | same station | 26.3°C about the same | 0.5°C about the same | 740 mm |
| Héricy 4.8 km | same station | 26.3°C about the same | 0.5°C about the same | 740 mm |
| Champagne-sur-Seine 5.6 km | same station | 26.3°C about the same | 0.5°C about the same | 740 mm |
| Saint-Mammès 6.9 km | same station | 26.3°C about the same | 0.5°C about the same | 740 mm |
Avon weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Fontainebleau station; sunshine at Melun.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.2°C | 0.5°C | 3.8°C | 58 mm | 60 |
| February | 8.7°C | 0.0°C | 4.3°C | 54 mm | 83 |
| March | 12.9°C | 1.8°C | 7.4°C | 53 mm | 143 |
| April | 16.6°C | 3.7°C | 10.2°C | 59 mm | 188 |
| May | 20.1°C | 7.5°C | 13.8°C | 67 mm | 216 |
| June | 23.6°C | 10.8°C | 17.2°C | 60 mm | 226 |
| July | 26.3°C | 12.6°C | 19.5°C | 62 mm | 235 |
| August | 26.2°C | 12.1°C | 19.1°C | 59 mm | 225 |
| September | 21.9°C | 8.8°C | 15.4°C | 61 mm | 180 |
| October | 16.6°C | 6.4°C | 11.5°C | 68 mm | 119 |
| November | 10.9°C | 3.0°C | 7.0°C | 67 mm | 68 |
| December | 7.6°C | 1.1°C | 4.3°C | 72 mm | 54 |
| Year | 16.5°C | 5.7°C | 11.1°C | 740 mm | 1,798 |
Where Avon’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Fontainebleau, 3.8 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, 22 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 Seine-et-Marne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Avon’s climate
How warm does Avon get in summer?
July is the warmest month, with average highs of 26.3°C. About 61 days a year reach 25°C, more than 51% of mainland French towns, and about 17 reach 30°C.
How cold does Avon get in winter?
February nights average 0.0°C. The air drops to 0°C or below on about 74 nights a year, and about 4 days a year stay below freezing all day.
How much rain does Avon get?
About 740 mm a year, less than 55% of mainland French towns. December is the wettest month (72 mm) and March the driest (53 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Melun (22 km away), averages 1,798 hours of sunshine a year.
Are these figures for Avon itself?
No: they are the normals of the Météo-France station matched to Avon, Fontainebleau, 3.8 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 FONTAINEBLEAU_SAPC, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Avon →
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.