Summer arrives softly in Long, cooler than in 95% of mainland French towns
The coldest hours of a January night bottom out at 2.2°C on average. By frosts alone, it ranks gentler than 68% of mainland French towns. Temperatures cover 20°C across the year, low to high. Waterproofs come out on about 129 days a year, each with 1 mm of rain or more.
Figures from Météo-France’s Abbeville station, 15 km north-west.
A year in Long at a glance
Each month’s typical high and low in °C, at the Abbeville station.
What a year in Long feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Abbeville.
About 806 mm of rain a year
December is the wettest month and April the driest. About 23 days a year bring 10 mm or more. 2nd wettest of 24 towns of 2,500+ in Somme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Amiens-Glisy
34 frosts and 23 days of 25°C a year
On about 34 nights a year the air drops to 0°C or below, and on about 4 days it stays below freezing all day. About 23 days a year reach 25°C, and 4 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Abbeville: 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 Abbeville
Abbeville is 15 km north-west of Long. Every figure on this page is the station’s, not a measurement in Long itself.
| Station (Météo-France number) | Abbeville (80001001) |
| Distance from the town | 15 km north-west |
| Station altitude | 69 m |
| Town altitude (its center) | 20 m |
| Period | 1991–2020 |
| Sunshine measured at | Amiens-Glisy, 34 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 Long 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 |
|---|---|---|---|---|
| Long | Abbeville | 22.4°C | 2.2°C | 806 mm |
| Flixecourt 7.9 km | same station | 22.4°C about the same | 2.2°C about the same | 806 mm |
| Abbeville 13 km | same station | 22.4°C about the same | 2.2°C about the same | 806 mm |
| Ailly-sur-Somme 20 km | Amiens-Glisy | 23.9°C 1.5°C warmer | 1.6°C 0.6°C colder | 647 mm |
| Auxi-le-Château 23 km | Bernaville | 22.4°C about the same | 1.3°C 0.9°C colder | 877 mm |
| Salouël 27 km | Amiens-Glisy | 23.9°C 1.5°C warmer | 1.6°C 0.6°C colder | 647 mm |
| Saleux 27 km | Amiens-Glisy | 23.9°C 1.5°C warmer | 1.6°C 0.6°C colder | 647 mm |
Long weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Abbeville station; sunshine at Amiens-Glisy.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.0°C | 2.2°C | 4.6°C | 64 mm | 64 |
| February | 7.7°C | 2.3°C | 5.0°C | 53 mm | 87 |
| March | 10.9°C | 4.0°C | 7.4°C | 53 mm | 147 |
| April | 14.3°C | 5.5°C | 9.9°C | 50 mm | 206 |
| May | 17.3°C | 8.7°C | 13.0°C | 60 mm | 203 |
| June | 20.1°C | 11.4°C | 15.7°C | 63 mm | 220 |
| July | 22.4°C | 13.4°C | 17.9°C | 62 mm | 224 |
| August | 22.6°C | 13.7°C | 18.1°C | 81 mm | 188 |
| September | 19.6°C | 11.3°C | 15.4°C | 67 mm | 168 |
| October | 15.3°C | 8.7°C | 12.0°C | 77 mm | 117 |
| November | 10.5°C | 5.3°C | 7.9°C | 84 mm | 71 |
| December | 7.4°C | 2.8°C | 5.1°C | 92 mm | 67 |
| Year | 14.6°C | 7.4°C | 11.0°C | 806 mm | 1,761 |
Where Long’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Abbeville, 15 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, Amiens-Glisy, 34 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 Long’s climate
How warm does Long get in summer?
August is the warmest month, with average highs of 22.6°C. About 23 days a year reach 25°C, fewer than 94% of mainland French towns, and about 4 reach 30°C.
How cold does Long get in winter?
January nights average 2.2°C. The air drops to 0°C or below on about 34 nights a year, and about 4 days a year stay below freezing all day.
How much rain does Long get?
About 806 mm a year, more than 61% of mainland French towns. December is the wettest month (92 mm) and April the driest (50 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Amiens-Glisy (34 km away), averages 1,761 hours of sunshine a year.
Are these figures for Long itself?
No: they are the normals of the Météo-France station matched to Long, Abbeville, 15 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 ABBEVILLE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Long →
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.