Ice on the ground: Treteau sees more frosts than 91% of mainland French towns
Expect July afternoons of about 27.4°C. A year here swings 28°C from midwinter lows to midsummer highs. Summer afternoons here are warmer than in 71% of mainland French towns. An umbrella earns its place on about 115 days a year with 1 mm of rain or more.
Figures from Météo-France’s Paray-sous-Briailles station, 17 km south-west.
A year in Treteau at a glance
Each month’s typical high and low in °C, at the Paray-sous-Briailles station.
What a year in Treteau feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Paray-sous-Briailles.
About 745 mm of rain a year
May is the wettest month and February the driest. About 21 days a year bring 10 mm or more. 19th wettest of 21 towns of 2,500+ in Allier.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Vichy-Charmeil
A frosty town: 69 frosts and 78 days of 25°C a year
On about 69 nights a year the air drops to 0°C or below, and on about 5 days it stays below freezing all day. About 78 days a year reach 25°C, and 28 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Paray-sous-Briailles: 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 Paray-sous-Briailles
Paray-sous-Briailles is 17 km south-west of Treteau. Every figure on this page is the station’s, not a measurement in Treteau itself.
| Station (Météo-France number) | Paray-sous-Briailles (03204001) |
| Distance from the town | 17 km south-west |
| Station altitude | 245 m |
| Town altitude (its center) | 274 m |
| Period | 1991–2020 |
| Nearest station of any kind | 14 km |
| Sunshine measured at | Vichy-Charmeil, 24 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 Treteau 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 Allier.
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 |
|---|---|---|---|---|
| Treteau | Paray-sous-Briailles | 27.4°C | 0.3°C | 745 mm |
| Varennes-sur-Allier 10 km | same station | 27.4°C about the same | 0.3°C about the same | 745 mm |
| Lapalisse 16 km | Saint-Didier | 26.2°C 1.2°C cooler | 0.1°C about the same | 763 mm |
| Saint-Pourçain-sur-Sioule 19 km | same station | 27.4°C about the same | 0.3°C about the same | 745 mm |
| Saint-Germain-des-Fossés 19 km | Vichy-Charmeil | 26.8°C 0.6°C cooler | 0.1°C about the same | 769 mm |
| Dompierre-sur-Besbre 21 km | Diou | 27.2°C about the same | 0.9°C 0.6°C milder | 819 mm |
| Creuzier-le-Vieux 24 km | Vichy-Charmeil | 26.8°C 0.6°C cooler | 0.1°C about the same | 769 mm |
Treteau weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Paray-sous-Briailles station; sunshine at Vichy-Charmeil.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.6°C | 0.3°C | 3.9°C | 51 mm | 72 |
| February | 9.2°C | −0.1°C | 4.6°C | 37 mm | 97 |
| March | 13.8°C | 1.8°C | 7.8°C | 46 mm | 156 |
| April | 17.2°C | 4.1°C | 10.6°C | 60 mm | 181 |
| May | 21.1°C | 8.1°C | 14.6°C | 80 mm | 204 |
| June | 25.0°C | 11.6°C | 18.3°C | 68 mm | 225 |
| July | 27.4°C | 13.2°C | 20.3°C | 72 mm | 254 |
| August | 27.4°C | 12.9°C | 20.1°C | 74 mm | 245 |
| September | 22.8°C | 9.3°C | 16.1°C | 67 mm | 190 |
| October | 17.8°C | 7.0°C | 12.4°C | 65 mm | 128 |
| November | 11.7°C | 3.3°C | 7.5°C | 71 mm | 80 |
| December | 8.0°C | 1.0°C | 4.5°C | 54 mm | 61 |
| Year | 17.4°C | 6.0°C | 11.7°C | 745 mm | 1,892 |
Where Treteau’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Paray-sous-Briailles, 17 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, Vichy-Charmeil, 24 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 Allier.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Treteau’s climate
How warm does Treteau get in summer?
July is the warmest month, with average highs of 27.4°C. About 78 days a year reach 25°C, more than 70% of mainland French towns, and about 28 reach 30°C.
How cold does Treteau get in winter?
February nights average −0.1°C. The air drops to 0°C or below on about 69 nights a year, and about 5 days a year stay below freezing all day.
How much rain does Treteau get?
About 745 mm a year, less than 53% of mainland French towns. May is the wettest month (80 mm) and February the driest (37 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Vichy-Charmeil (24 km away), averages 1,892 hours of sunshine a year.
Are these figures for Treteau itself?
No: they are the normals of the Météo-France station matched to Treteau, Paray-sous-Briailles, 17 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 PARAY-SOUS-BRIAILLES, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Treteau →
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.