Montoison has warmer summer afternoons than 89% of mainland French towns
Midwinter brings lows of about 1.7°C. Rain is plentiful here, more than falls on 78% of mainland French towns. Of all months, October brings the most rain and February the least. Gritters and ice scrapers earn their keep on roughly 35 nights a year below 0°C.
Figures from Météo-France’s Étoile station, 4.4 km north-west.
A year in Montoison at a glance
Each month’s typical high and low in °C, at the Étoile station.
What a year in Montoison feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Étoile.
About 905 mm of rain a year
October is the wettest month and February the driest. About 28 days a year bring 10 mm or more. 10th wettest of 40 towns of 2,500+ in Drôme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Montélimar
35 frosts and 96 days of 25°C a year
On about 35 nights a year the air drops to 0°C or below, and on about 3 days it stays below freezing all day. About 96 days a year reach 25°C, and 38 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Étoile: 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 Étoile
Étoile is 4.4 km north-west of Montoison. Every figure on this page is the station’s, not a measurement in Montoison itself.
| Station (Météo-France number) | Étoile (26124001) |
| Distance from the town | 4.4 km north-west |
| Station altitude | 145 m |
| Town altitude (its center) | 173 m |
| Period | 1991–2020 |
| Sunshine measured at | Montélimar, 29 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 Montoison 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 Drôme.
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 |
|---|---|---|---|---|
| Montoison | Étoile | 29.2°C | 1.7°C | 905 mm |
| Allex 4.1 km | same station | 29.2°C about the same | 1.7°C about the same | 905 mm |
| Montmeyran 5.1 km | Valence-Chabeui | 29.4°C about the same | 1.0°C 0.7°C colder | 874 mm |
| Étoile-sur-Rhône 6 km | same station | 29.2°C about the same | 1.7°C about the same | 905 mm |
| Beaumont-lès-Valence 7.3 km | same station | 29.2°C about the same | 1.7°C about the same | 905 mm |
| Livron-sur-Drôme 8.1 km | Livron | 29.6°C about the same | 1.4°C about the same | 917 mm |
| Portes-lès-Valence 9.4 km | same station | 29.2°C about the same | 1.7°C about the same | 905 mm |
Montoison weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Étoile station; sunshine at Montélimar.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.1°C | 1.7°C | 4.9°C | 62 mm | 107 |
| February | 9.9°C | 1.8°C | 5.9°C | 42 mm | 136 |
| March | 14.7°C | 4.5°C | 9.6°C | 50 mm | 200 |
| April | 18.0°C | 7.1°C | 12.6°C | 74 mm | 219 |
| May | 22.1°C | 10.9°C | 16.5°C | 81 mm | 260 |
| June | 26.5°C | 14.3°C | 20.4°C | 62 mm | 300 |
| July | 29.2°C | 16.3°C | 22.7°C | 55 mm | 330 |
| August | 28.9°C | 15.9°C | 22.4°C | 66 mm | 299 |
| September | 24.0°C | 12.6°C | 18.3°C | 108 mm | 231 |
| October | 18.5°C | 9.8°C | 14.2°C | 129 mm | 156 |
| November | 12.3°C | 5.4°C | 8.8°C | 118 mm | 110 |
| December | 8.5°C | 2.5°C | 5.5°C | 57 mm | 95 |
| Year | 18.4°C | 8.6°C | 13.5°C | 905 mm | 2,441 |
Where Montoison’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Étoile, 4.4 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, Montélimar, 29 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 Drôme.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Montoison’s climate
How warm does Montoison get in summer?
July is the warmest month, with average highs of 29.2°C. About 96 days a year reach 25°C, more than 85% of mainland French towns, and about 38 reach 30°C.
How cold does Montoison get in winter?
January nights average 1.7°C. The air drops to 0°C or below on about 35 nights a year, and about 3 days a year stay below freezing all day.
How much rain does Montoison get?
About 905 mm a year, more than 78% of mainland French towns. October is the wettest month (129 mm) and February the driest (42 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Montélimar (29 km away), averages 2,441 hours of sunshine a year.
Are these figures for Montoison itself?
No: they are the normals of the Météo-France station matched to Montoison, Étoile, 4.4 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 ETOILE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Montoison →
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.