Dry weather: only 643 mm a year falls on Mormant-sur-Vernisson, less than on 84% of mainland French towns
The warmest part of a July day comes in at 26.8°C on average. By frosts alone, it ranks colder than 78% of mainland French towns. Of all months, May brings the most rain and March the least. Expect about 58 frosty starts a year, nights when the air falls below freezing.
Figures from Météo-France’s Amilly station, 2.8 km north.
A year in Mormant-sur-Vernisson at a glance
Each month’s typical high and low in °C, at the Amilly station.
What a year in Mormant-sur-Vernisson feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Amilly.
About 643 mm of rain a year
May is the wettest month and March the driest. About 16 days a year bring 10 mm or more. 43rd wettest of 53 towns of 2,500+ in Loiret.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Orleans
A frosty town: 58 frosts and 66 days of 25°C a year
On about 58 nights a year the air drops to 0°C or below, and on about 4 days it stays below freezing all day. About 66 days a year reach 25°C, and 21 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Amilly: 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 Amilly
Amilly is 2.8 km north of Mormant-sur-Vernisson. Every figure on this page is the station’s, not a measurement in Mormant-sur-Vernisson itself.
| Station (Météo-France number) | Amilly (45004001) |
| Distance from the town | 2.8 km north |
| Station altitude | 91 m |
| Town altitude (its center) | 99 m |
| Period | 1991–2020 |
| Sunshine measured at | Orleans, 72 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 Mormant-sur-Vernisson 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 Loiret.
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 |
|---|---|---|---|---|
| Mormant-sur-Vernisson | Amilly | 26.8°C | 1.3°C | 643 mm |
| Amilly 5.4 km | same station | 26.8°C about the same | 1.3°C about the same | 643 mm |
| Villemandeur 6 km | same station | 26.8°C about the same | 1.3°C about the same | 643 mm |
| Montargis 6.6 km | same station | 26.8°C about the same | 1.3°C about the same | 643 mm |
| Pannes 8.8 km | same station | 26.8°C about the same | 1.3°C about the same | 643 mm |
| Châlette-sur-Loing 9 km | same station | 26.8°C about the same | 1.3°C about the same | 643 mm |
| Nogent-sur-Vernisson 11 km | Nogent-sur-V. | 26.2°C 0.6°C cooler | 1.2°C about the same | 739 mm |
Mormant-sur-Vernisson weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Amilly station; sunshine at Orleans.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.4°C | 1.3°C | 4.3°C | 47 mm | 64 |
| February | 8.9°C | 0.8°C | 4.8°C | 44 mm | 91 |
| March | 13.1°C | 2.7°C | 7.9°C | 44 mm | 146 |
| April | 16.7°C | 4.6°C | 10.7°C | 51 mm | 186 |
| May | 20.6°C | 8.4°C | 14.5°C | 66 mm | 215 |
| June | 24.2°C | 11.7°C | 17.9°C | 52 mm | 220 |
| July | 26.8°C | 13.3°C | 20.0°C | 56 mm | 232 |
| August | 26.7°C | 12.9°C | 19.8°C | 50 mm | 229 |
| September | 22.4°C | 9.6°C | 16.0°C | 49 mm | 185 |
| October | 17.2°C | 7.4°C | 12.3°C | 62 mm | 121 |
| November | 11.2°C | 3.9°C | 7.6°C | 62 mm | 74 |
| December | 7.9°C | 1.8°C | 4.8°C | 61 mm | 61 |
| Year | 16.9°C | 6.5°C | 11.7°C | 643 mm | 1,823 |
Where Mormant-sur-Vernisson’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Amilly, 2.8 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, Orleans, 72 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 Loiret.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Mormant-sur-Vernisson’s climate
How warm does Mormant-sur-Vernisson get in summer?
July is the warmest month, with average highs of 26.8°C. About 66 days a year reach 25°C, more than 57% of mainland French towns, and about 21 reach 30°C.
How cold does Mormant-sur-Vernisson get in winter?
February nights average 0.8°C. The air drops to 0°C or below on about 58 nights a year, and about 4 days a year stay below freezing all day.
How much rain does Mormant-sur-Vernisson get?
About 643 mm a year, less than 84% of mainland French towns. May is the wettest month (66 mm) and March the driest (44 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Orleans (72 km away), averages 1,823 hours of sunshine a year.
Are these figures for Mormant-sur-Vernisson itself?
No: they are the normals of the Météo-France station matched to Mormant-sur-Vernisson, Amilly, 2.8 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 AMILLY, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Mormant-sur-Vernisson →
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.