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Climate in Ressons-le-Long · Météo-France 1991–2020 normals

Dry weather: only 663 mm a year falls on Ressons-le-Long, less than on 80% of mainland French towns

The warmest part of a July day comes in at 25.4°C on average. Of all months, December brings the most rain and April the least. Frost is common: about 53 nights a year drop below freezing, more than in 73% of mainland French towns. For walks and days out, the stretch from May to September brings highs of 20–25°C.

July afternoons: cooler than 66% of mainland French towns
January nights: colder than 65% of mainland French towns
Rain a year: drier than 80% of mainland French towns

These are the figures of Météo-France’s Braine station, 28 km east; at that distance they describe the area more than the town.

A year in Ressons-le-Long at a glance

Each month’s typical high and low in °C, at the Braine station.

Jan7°C1°C
Feb8°C1°CColdest nights
Mar12°C3°C
Apr16°C5°C
May20°C8°C
Jun23°C11°C
Jul25°C13°CWarmest
Aug25°C13°C
Sep21°C10°C
Oct16°C8°C
Nov now10°C4°C
Dec7°C2°CWettest
A normal year

What a year in Ressons-le-Long feels like

Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Braine.

Winter
7°C / 2°C
53 frosts a year
Spring
16°C / 5°C
152 mm of rain
Summer
24°C / 12°C
178 mm of rain, the wettest season
Autumn
16°C / 7°C
156 mm of rain
Best months to be outsideMayJunJulAugSepHighs of 17–27°C and nights of 8°C or more
Rain

About 663 mm of rain a year

December is the wettest month and April the driest. About 16 days a year bring 10 mm or more. 19th wettest of 24 towns of 2,500+ in Aisne.

663 mm
Rain a year, over 119 days of 1 mm or more
Drier than 80% of mainland French towns
16
Days a year with 10 mm of rain or more

Rain by month

Millimeters

72 mm
JFMAMJJASOND
Frost & warm days

A frosty town: 53 frosts and 50 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 50 days a year reach 25°C, and 13 reach 30°C.

53
Air frosts a year (below 0°C)
More frosts than 73% of mainland French towns
5
Days that stay below 0°C
50
Days of 25°C or more
Fewer warm days than 68% of mainland French towns
13
Hot days, 30°C or more
Fewer hot days than 67% of mainland French towns

Day counts are Météo-France’s 1991–2020 normals at Braine: 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.

Weather station

The Météo-France station at Braine

Braine is 28 km east of Ressons-le-Long. Every figure on this page is the station’s, not a measurement in Ressons-le-Long itself.

Station (Météo-France number)Braine (02110002)
Distance from the town28 km east
Station altitude61 m
Town altitude (its center)61 m
Period1991–2020
Nearest station of any kind25 km

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.

Compared with other towns

How Ressons-le-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 Aisne.

July afternoons25.4°C
Ressons-le-LongMedian mainland town
23°C24°C25°C26°C
Cooler than 66% of mainland French towns3rd warmest of 24 towns of 2,500+ in Aisne
January nights1.4°C
Ressons-le-LongMedian mainland town
−1°C0°C1°C2°C3°C
Colder than 65% of mainland French towns6th mildest of 24 towns of 2,500+ in Aisne
Rain a year663 mm
Ressons-le-LongMedian mainland town
4006008001,0001,200
Drier than 80% of mainland French towns19th wettest of 24 towns of 2,500+ in Aisne
Frosts a year53 nights
Ressons-le-LongMedian mainland town
20406080100
More frosts than 73% of mainland French towns4th frostiest of 24 towns of 2,500+ in Aisne
Days of 25°C or more50 days
Ressons-le-LongMedian mainland town
20406080
Fewer warm days than 68% of mainland French towns3rd most 25°C days of 24 towns of 2,500+ in Aisne
Next door

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.

TownStationJuly highJanuary lowRain a year
Ressons-le-LongBraine25.4°C1.4°C663 mm
Soissons 13 kmsame station25.4°C about the same1.4°C about the same663 mm
Belleu 14 kmsame station25.4°C about the same1.4°C about the same663 mm
Villeneuve-Saint-Germain 15 kmsame station25.4°C about the same1.4°C about the same663 mm
Crouy 15 kmsame station25.4°C about the same1.4°C about the same663 mm
Villers-Cotterêts 16 kmMargny-lès-Compiègne24.7°C 0.7°C cooler1.5°C about the same634 mm
Choisy-au-Bac 20 kmMargny-lès-Compiègne24.7°C 0.7°C cooler1.5°C about the same634 mm
Month by month

Ressons-le-Long weather by month

Average daily high and low, mean temperature and rain, 1991–2020, at the Braine station.

MonthHighLowMeanRain
January6.7°C1.4°C4.0°C59 mm
February8.0°C1.3°C4.6°C47 mm
March12.2°C2.9°C7.6°C49 mm
April16.0°C4.6°C10.3°C43 mm
May19.6°C8.2°C13.9°C60 mm
June22.8°C11.1°C17.0°C56 mm
July25.4°C13.1°C19.3°C61 mm
August25.2°C12.8°C19.0°C61 mm
September21.2°C10.0°C15.6°C46 mm
October16.1°C7.7°C11.9°C56 mm
November10.4°C4.4°C7.4°C54 mm
December7.2°C2.1°C4.6°C72 mm
Year15.9°C6.6°C11.3°C663 mm
Sources

Where Ressons-le-Long’s numbers come from

Averages over 30 years, not a forecast.

  • Temperature, rain and day counts: Météo-France’s fiche climatologique for Braine, 28 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.
  • Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Aisne.

Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.

Questions about Ressons-le-Long’s climate

How warm does Ressons-le-Long get in summer?

July is the warmest month, with average highs of 25.4°C. About 50 days a year reach 25°C, fewer than 68% of mainland French towns, and about 13 reach 30°C.

How cold does Ressons-le-Long get in winter?

February nights average 1.3°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 Ressons-le-Long get?

About 663 mm a year, less than 80% of mainland French towns. December is the wettest month (72 mm) and April the driest (43 mm).

Are these figures for Ressons-le-Long itself?

No: they are the normals of the Météo-France station matched to Ressons-le-Long, Braine, 28 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 BRAINE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Ressons-le-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.