Châteaudun sits near the bottom of mainland French towns for rain, with 603 mm a year
Nights in January average 1.4°C. Frost is common: about 51 nights a year drop below freezing, more than in 71% of mainland French towns. Of all months, December brings the most rain and February the least. The outdoor season runs from May to September, with highs of 19–26°C.
These are the figures of Météo-France’s Chateaudun station, 3.2 km south-east.
A year in Châteaudun at a glance
Each month’s typical high and low in °C, at the Chateaudun station.
What a year in Châteaudun feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Chateaudun.
About 603 mm of rain a year
December is the wettest month and February the driest. About 15 days a year bring 10 mm or more. 26th wettest of 33 towns of 2,500+ in Eure-et-Loir.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Chateaudun
A frosty town: 51 frosts and 53 days of 25°C a year
On about 51 nights a year the air drops to 0°C or below, and on about 5 days it stays below freezing all day. About 53 days a year reach 25°C, and 14 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Chateaudun: 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 Chateaudun
Chateaudun is 3.2 km south-east of Châteaudun. Every figure on this page is the station’s, not a measurement in Châteaudun itself.
| Station (Météo-France number) | Chateaudun (28198001) |
| Distance from the town | 3.2 km south-east |
| Station altitude | 126 m |
| Town altitude (its center) | 140 m |
| Period | 1991–2020 |
| Sunshine measured at | the same station |
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 Châteaudun 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 Eure-et-Loir.
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 |
|---|---|---|---|---|
| Châteaudun | Chateaudun | 25.8°C | 1.4°C | 603 mm |
| Cloyes-les-Trois-Rivières 10 km | same station | 25.8°C about the same | 1.4°C about the same | 603 mm |
| Bonneval 12 km | Pré-Saint-Évroult | 25.8°C about the same | 1.5°C about the same | 592 mm |
| Vald'Yerre 15 km | Droué - Morache | 25.0°C 0.8°C cooler | 1.5°C about the same | 789 mm |
| Brou 20 km | Blandainville | 25.4°C about the same | 1.6°C about the same | 626 mm |
| Beauce la Romaine 21 km | Saint-Léonard-en-B | 26.8°C 1°C warmer | 1.7°C about the same | 642 mm |
| Illiers-Combray 26 km | Blandainville | 25.4°C about the same | 1.6°C about the same | 626 mm |
Châteaudun weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Chateaudun station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.1°C | 1.4°C | 4.3°C | 52 mm | 65 |
| February | 8.6°C | 1.0°C | 4.8°C | 41 mm | 92 |
| March | 12.6°C | 3.0°C | 7.8°C | 44 mm | 144 |
| April | 15.9°C | 4.8°C | 10.4°C | 47 mm | 189 |
| May | 19.4°C | 8.4°C | 13.9°C | 56 mm | 216 |
| June | 23.0°C | 11.6°C | 17.3°C | 48 mm | 226 |
| July | 25.8°C | 13.4°C | 19.6°C | 52 mm | 238 |
| August | 25.8°C | 13.3°C | 19.6°C | 43 mm | 233 |
| September | 21.8°C | 10.2°C | 16.0°C | 43 mm | 187 |
| October | 16.6°C | 7.6°C | 12.1°C | 61 mm | 121 |
| November | 10.9°C | 4.1°C | 7.5°C | 55 mm | 73 |
| December | 7.6°C | 1.8°C | 4.7°C | 62 mm | 63 |
| Year | 16.3°C | 6.7°C | 11.5°C | 603 mm | 1,846 |
Where Châteaudun’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Chateaudun, 3.2 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, Chateaudun, 3.2 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 Eure-et-Loir.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Châteaudun’s climate
How warm does Châteaudun get in summer?
July is the warmest month, with average highs of 25.8°C. About 53 days a year reach 25°C, fewer than 65% of mainland French towns, and about 14 reach 30°C.
How cold does Châteaudun get in winter?
February nights average 1.0°C. The air drops to 0°C or below on about 51 nights a year, and about 5 days a year stay below freezing all day.
How much rain does Châteaudun get?
About 603 mm a year, less than 95% of mainland French towns. December is the wettest month (62 mm) and February the driest (41 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Chateaudun (3.2 km away), averages 1,846 hours of sunshine a year.
Are these figures for Châteaudun itself?
No: they are the normals of the Météo-France station matched to Châteaudun, Chateaudun, 3.2 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 CHATEAUDUN, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Châteaudun →
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.