Frosty mornings in Lévis-Saint-Nom outnumber those of 73% of mainland French towns
Peak summer warmth arrives in July, with afternoons near 25.1°C. In July, afternoons here are cooler than in 70% of mainland French towns. Temperatures cover 24°C across the year, low to high. Keep the boiler serviced for the months from November to March, which average under 10°C.
These are the figures of Météo-France’s Choisel station, 7.7 km south-east.
A year in Lévis-Saint-Nom at a glance
Each month’s typical high and low in °C, at the Choisel station.
What a year in Lévis-Saint-Nom feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Choisel.
About 709 mm of rain a year
December is the wettest month and April the driest. About 20 days a year bring 10 mm or more. The wettest of 95 towns of 2,500+ in Yvelines.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Trappes
A frosty town: 53 frosts and 49 days of 25°C a year
On about 53 nights a year the air drops to 0°C or below, and on about 5 days it stays below freezing all day. About 49 days a year reach 25°C, and 13 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Choisel: 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 Choisel
Choisel is 7.7 km south-east of Lévis-Saint-Nom. Every figure on this page is the station’s, not a measurement in Lévis-Saint-Nom itself.
| Station (Météo-France number) | Choisel (78162001) |
| Distance from the town | 7.7 km south-east |
| Station altitude | 176 m |
| Town altitude (its center) | 132 m |
| Period | 1991–2019 (the station’s own record) |
| Sunshine measured at | Trappes, 8.9 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 Lévis-Saint-Nom 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 Yvelines.
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 |
|---|---|---|---|---|
| Lévis-Saint-Nom | Choisel | 25.1°C | 1.3°C | 709 mm |
| Les Essarts-le-Roi 1.8 km | same station | 25.1°C about the same | 1.3°C about the same | 709 mm |
| Coignières 2.9 km | Trappes | 24.6°C 0.5°C cooler | 1.9°C 0.6°C milder | 686 mm |
| Le Mesnil-Saint-Denis 3.7 km | Trappes | 24.6°C 0.5°C cooler | 1.9°C 0.6°C milder | 686 mm |
| La Verrière 4.7 km | Trappes | 24.6°C 0.5°C cooler | 1.9°C 0.6°C milder | 686 mm |
| Maurepas 4.8 km | Trappes | 24.6°C 0.5°C cooler | 1.9°C 0.6°C milder | 686 mm |
| Le Perray-en-Yvelines 6 km | Saint-Léger | 24.8°C about the same | 1.3°C about the same | 706 mm |
Lévis-Saint-Nom weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Choisel station; sunshine at Trappes.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.7°C | 1.3°C | 4.0°C | 61 mm | 57 |
| February | 7.7°C | 1.0°C | 4.4°C | 52 mm | 81 |
| March | 11.9°C | 3.1°C | 7.5°C | 52 mm | 134 |
| April | 15.3°C | 5.0°C | 10.1°C | 49 mm | 176 |
| May | 19.2°C | 8.4°C | 13.8°C | 68 mm | 202 |
| June | 22.6°C | 11.4°C | 17.0°C | 62 mm | 210 |
| July | 25.1°C | 13.2°C | 19.2°C | 52 mm | 222 |
| August | 25.0°C | 13.0°C | 19.0°C | 56 mm | 216 |
| September | 20.8°C | 10.1°C | 15.4°C | 52 mm | 177 |
| October | 15.8°C | 7.4°C | 11.6°C | 66 mm | 117 |
| November | 10.4°C | 4.1°C | 7.2°C | 65 mm | 68 |
| December | 6.9°C | 1.6°C | 4.2°C | 76 mm | 55 |
| Year | 15.6°C | 6.6°C | 11.1°C | 709 mm | 1,714 |
Where Lévis-Saint-Nom’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Choisel, 7.7 km away: statistics for 1991–2020 (the station’s own years, 1991–2019, 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.
- Sunshine: the nearest station with at least 10 years of sunshine records, Trappes, 8.9 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 Yvelines.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Lévis-Saint-Nom’s climate
How warm does Lévis-Saint-Nom get in summer?
July is the warmest month, with average highs of 25.1°C. About 49 days a year reach 25°C, fewer than 70% of mainland French towns, and about 13 reach 30°C.
How cold does Lévis-Saint-Nom get in winter?
February nights average 1.0°C. The air drops to 0°C or below on about 53 nights a year, and about 5 days a year stay below freezing all day.
How much rain does Lévis-Saint-Nom get?
About 709 mm a year, less than 66% of mainland French towns. December is the wettest month (76 mm) and April the driest (49 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Trappes (8.9 km away), averages 1,714 hours of sunshine a year.
Are these figures for Lévis-Saint-Nom itself?
No: they are the normals of the Météo-France station matched to Lévis-Saint-Nom, Choisel, 7.7 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 CHOISEL, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Lévis-Saint-Nom →
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.