Lavancia-Epercy sits near the top of mainland French towns for rain, with 1,350 mm a year
Deep winter brings January lows near −1.3°C. By frosts alone, it ranks colder than 97% of mainland French towns. November is the wettest month, June the driest. Plan for rain on about 135 days a year, the days with 1 mm or more.
Figures from Météo-France’s Saint-Julien - Sa station, 19 km west.
A year in Lavancia-Epercy at a glance
Each month’s typical high and low in °C, at the Saint-Julien - Sa station.
What a year in Lavancia-Epercy feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Saint-Julien - Sa.
About 1,350 mm of rain a year
November is the wettest month and June the driest. About 47 days a year bring 10 mm or more. 5th wettest of 11 towns of 2,500+ in Jura.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Amberieu
A frosty town: 85 frosts and 57 days of 25°C a year
On about 85 nights a year the air drops to 0°C or below, and on about 8 days it stays below freezing all day. About 57 days a year reach 25°C, and 14 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Saint-Julien - Sa: 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-Julien - Sa
Saint-Julien - Sa is 19 km west of Lavancia-Epercy. Every figure on this page is the station’s, not a measurement in Lavancia-Epercy itself.
| Station (Météo-France number) | Saint-Julien - Sa (39485002) |
| Distance from the town | 19 km west |
| Station altitude | 361 m |
| Town altitude (its center) | 328 m |
| Period | 1996–2020 (the station’s own record) |
| Nearest station of any kind | 5.8 km |
| Sunshine measured at | Amberieu, 48 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 Lavancia-Epercy 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 Jura.
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 |
|---|---|---|---|---|
| Lavancia-Epercy | Saint-Julien - Sa | 25.6°C | −1.3°C | 1,350 mm |
| Arbent 5.2 km | Cernon | 25.4°C about the same | −1.5°C about the same | 1,568 mm |
| Oyonnax 8.4 km | Cernon | 25.4°C about the same | −1.5°C about the same | 1,568 mm |
| Bellignat 9.8 km | Cernon | 25.4°C about the same | −1.5°C about the same | 1,568 mm |
| Saint-Claude 15 km | Saint-Claude | 26.9°C 1.3°C warmer | −2.3°C 1°C colder | 1,869 mm |
| Montréal-la-Cluse 18 km | Vieu | 24.7°C 0.9°C cooler | −2.8°C 1.5°C colder | 1,610 mm |
| Nantua 21 km | Vieu | 24.7°C 0.9°C cooler | −2.8°C 1.5°C colder | 1,610 mm |
Lavancia-Epercy weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Saint-Julien - Sa station; sunshine at Amberieu.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.0°C | −1.3°C | 2.4°C | 115 mm | 68 |
| February | 7.7°C | −1.4°C | 3.2°C | 97 mm | 98 |
| March | 12.2°C | 1.0°C | 6.6°C | 108 mm | 170 |
| April | 16.0°C | 3.7°C | 9.9°C | 105 mm | 194 |
| May | 19.8°C | 7.6°C | 13.7°C | 127 mm | 220 |
| June | 23.9°C | 11.1°C | 17.5°C | 92 mm | 252 |
| July | 25.6°C | 12.5°C | 19.1°C | 98 mm | 288 |
| August | 25.3°C | 12.2°C | 18.8°C | 109 mm | 261 |
| September | 21.2°C | 8.9°C | 15.0°C | 93 mm | 189 |
| October | 16.3°C | 6.4°C | 11.4°C | 131 mm | 122 |
| November | 10.2°C | 2.1°C | 6.2°C | 146 mm | 73 |
| December | 6.6°C | −0.6°C | 3.0°C | 131 mm | 55 |
| Year | 15.9°C | 5.2°C | 10.6°C | 1,350 mm | 1,989 |
Where Lavancia-Epercy’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Saint-Julien - Sa, 19 km away: statistics for 1991–2020 (the station’s own years, 1996–2020, where its record is shorter).
- 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, Amberieu, 48 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 Jura.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Lavancia-Epercy’s climate
How warm does Lavancia-Epercy get in summer?
July is the warmest month, with average highs of 25.6°C. About 57 days a year reach 25°C, fewer than 57% of mainland French towns, and about 14 reach 30°C.
How cold does Lavancia-Epercy get in winter?
February nights average −1.4°C. The air drops to 0°C or below on about 85 nights a year, and about 8 days a year stay below freezing all day.
How much rain does Lavancia-Epercy get?
About 1,350 mm a year, more than 98% of mainland French towns. November is the wettest month (146 mm) and June the driest (92 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Amberieu (48 km away), averages 1,989 hours of sunshine a year.
Are these figures for Lavancia-Epercy itself?
No: they are the normals of the Météo-France station matched to Lavancia-Epercy, Saint-Julien - Sa, 19 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 JULIEN - SA, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Lavancia-Epercy →
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.