Rainfall in Y trails that of 83% of mainland French towns: 648 mm a year
Nights in January average 1.3°C. From frosty January to warm July, readings climb 23°C. Only about 38 days a year reach 25°C, fewer than in 82% of mainland French towns. From May to September, highs of 19–24°C make it easy to spend the day outdoors.
These are the figures of Météo-France’s Estrées-Mons-Inrae station, 8.4 km north.
A year in Y at a glance
Each month’s typical high and low in °C, at the Estrées-Mons-Inrae station.
What a year in Y feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Estrées-Mons-Inrae.
About 648 mm of rain a year
August is the wettest month and April the driest. About 17 days a year bring 10 mm or more. 11th wettest of 24 towns of 2,500+ in Somme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Saint-Quentin
46 frosts and 38 days of 25°C a year
On about 46 nights a year the air drops to 0°C or below, and on about 6 days it stays below freezing all day. About 38 days a year reach 25°C, and 8 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Estrées-Mons-Inrae: 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 Estrées-Mons-Inrae
Estrées-Mons-Inrae is 8.4 km north of Y. Every figure on this page is the station’s, not a measurement in Y itself.
| Station (Météo-France number) | Estrées-Mons-Inrae (80557001) |
| Distance from the town | 8.4 km north |
| Station altitude | 87 m |
| Town altitude (its center) | 78 m |
| Period | 1991–2020 |
| Sunshine measured at | Saint-Quentin, 15 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 Y 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 Somme.
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 |
|---|---|---|---|---|
| Y | Estrées-Mons-Inrae | 24.4°C | 1.3°C | 648 mm |
| Ham 8.8 km | Saint-Quentin | 24.0°C about the same | 1.1°C about the same | 683 mm |
| Péronne 15 km | same station | 24.4°C about the same | 1.3°C about the same | 648 mm |
| Roye 19 km | Rouvroy-en-Santerre | 24.3°C about the same | 1.4°C about the same | 636 mm |
| Rosières-en-Santerre 21 km | Rouvroy-en-Santerre | 24.3°C about the same | 1.4°C about the same | 636 mm |
| Gauchy 21 km | Saint-Quentin | 24.0°C about the same | 1.1°C about the same | 683 mm |
| Saint-Quentin 22 km | Saint-Quentin | 24.0°C about the same | 1.1°C about the same | 683 mm |
Y weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Estrées-Mons-Inrae station; sunshine at Saint-Quentin.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.1°C | 1.3°C | 3.7°C | 50 mm | 62 |
| February | 7.2°C | 1.4°C | 4.3°C | 44 mm | 79 |
| March | 11.2°C | 3.3°C | 7.3°C | 46 mm | 135 |
| April | 15.1°C | 5.1°C | 10.1°C | 37 mm | 183 |
| May | 18.6°C | 8.5°C | 13.6°C | 59 mm | 206 |
| June | 21.6°C | 11.2°C | 16.4°C | 60 mm | 208 |
| July | 24.4°C | 13.0°C | 18.7°C | 57 mm | 214 |
| August | 24.3°C | 13.0°C | 18.6°C | 65 mm | 207 |
| September | 20.5°C | 10.4°C | 15.5°C | 51 mm | 167 |
| October | 15.4°C | 7.8°C | 11.6°C | 58 mm | 116 |
| November | 10.1°C | 4.5°C | 7.3°C | 58 mm | 67 |
| December | 6.6°C | 1.9°C | 4.3°C | 63 mm | 54 |
| Year | 15.1°C | 6.8°C | 11.0°C | 648 mm | 1,696 |
Where Y’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Estrées-Mons-Inrae, 8.4 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, Saint-Quentin, 15 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 Somme.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Y’s climate
How warm does Y get in summer?
July is the warmest month, with average highs of 24.4°C. About 38 days a year reach 25°C, fewer than 82% of mainland French towns, and about 8 reach 30°C.
How cold does Y get in winter?
January nights average 1.3°C. The air drops to 0°C or below on about 46 nights a year, and about 6 days a year stay below freezing all day.
How much rain does Y get?
About 648 mm a year, less than 83% of mainland French towns. August is the wettest month (65 mm) and April the driest (37 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Saint-Quentin (15 km away), averages 1,696 hours of sunshine a year.
Are these figures for Y itself?
No: they are the normals of the Météo-France station matched to Y, Estrées-Mons-Inrae, 8.4 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 ESTREES-MONS-INRAE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Y →
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.