January in Saint-Julien bites harder than in 81% of mainland French towns
Peak summer warmth arrives in July, with afternoons near 27.4°C. By July afternoons alone, it runs hotter than 71% of mainland French towns. The gap between a January night and a July afternoon is 27°C. Gritters and ice scrapers earn their keep on roughly 51 nights a year below 0°C.
Figures from Météo-France’s Liergues station, 5.2 km south.
A year in Saint-Julien at a glance
Each month’s typical high and low in °C, at the Liergues station.
What a year in Saint-Julien feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Liergues.
About 710 mm of rain a year
November is the wettest month and February the driest. About 21 days a year bring 10 mm or more. 118th wettest of 118 towns of 2,500+ in Rhône.
Rain by month
Millimeters
A frosty town: 51 frosts and 76 days of 25°C a year
On about 51 nights a year the air drops to 0°C or below, and on about 7 days it stays below freezing all day. About 76 days a year reach 25°C, and 25 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Liergues: 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 Liergues
Liergues is 5.2 km south of Saint-Julien. Every figure on this page is the station’s, not a measurement in Saint-Julien itself.
| Station (Météo-France number) | Liergues (69114001) |
| Distance from the town | 5.2 km south |
| Station altitude | 290 m |
| Town altitude (its center) | 282 m |
| Period | 1992–2020 (the station’s own record) |
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 Saint-Julien 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 Rhône.
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 |
|---|---|---|---|---|
| Saint-Julien | Liergues | 27.4°C | 0.4°C | 710 mm |
| Arnas 4.6 km | Villefranche | 28.8°C 1.4°C warmer | 0.9°C 0.5°C milder | 791 mm |
| Gleizé 5.1 km | Villefranche | 28.8°C 1.4°C warmer | 0.9°C 0.5°C milder | 791 mm |
| Porte des Pierres Dorées 6.2 km | same station | 27.4°C about the same | 0.4°C about the same | 710 mm |
| Saint-Georges-de-Reneins 6.7 km | Villefranche | 28.8°C 1.4°C warmer | 0.9°C 0.5°C milder | 791 mm |
| Villefranche-sur-Saône 6.8 km | Villefranche | 28.8°C 1.4°C warmer | 0.9°C 0.5°C milder | 791 mm |
| Limas 6.9 km | Villefranche | 28.8°C 1.4°C warmer | 0.9°C 0.5°C milder | 791 mm |
Saint-Julien weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Liergues station.
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 6.8°C | 0.4°C | 3.6°C | 45 mm |
| February | 8.5°C | 0.7°C | 4.6°C | 34 mm |
| March | 13.3°C | 3.3°C | 8.3°C | 38 mm |
| April | 17.0°C | 6.3°C | 11.6°C | 54 mm |
| May | 21.3°C | 10.0°C | 15.7°C | 65 mm |
| June | 25.2°C | 13.4°C | 19.3°C | 70 mm |
| July | 27.4°C | 15.0°C | 21.2°C | 71 mm |
| August | 27.1°C | 14.5°C | 20.8°C | 65 mm |
| September | 22.3°C | 10.9°C | 16.6°C | 59 mm |
| October | 17.2°C | 8.0°C | 12.6°C | 80 mm |
| November | 10.8°C | 3.8°C | 7.3°C | 81 mm |
| December | 7.2°C | 1.1°C | 4.1°C | 49 mm |
| Year | 17.0°C | 7.3°C | 12.1°C | 710 mm |
Where Saint-Julien’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Liergues, 5.2 km away: statistics for 1991–2020 (the station’s own years, 1992–2020, 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.
- Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Rhône.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Julien’s climate
How warm does Saint-Julien get in summer?
July is the warmest month, with average highs of 27.4°C. About 76 days a year reach 25°C, more than 68% of mainland French towns, and about 25 reach 30°C.
How cold does Saint-Julien get in winter?
January nights average 0.4°C. The air drops to 0°C or below on about 51 nights a year, and about 7 days a year stay below freezing all day.
How much rain does Saint-Julien get?
About 710 mm a year, less than 65% of mainland French towns. November is the wettest month (81 mm) and February the driest (34 mm).
Are these figures for Saint-Julien itself?
No: they are the normals of the Météo-France station matched to Saint-Julien, Liergues, 5.2 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 LIERGUES_SAPC, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Julien →
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.