Summer warmth: Castex-d'Armagnac logs more 25-degree days than 82% of mainland French towns
Nights in January average 2.1°C. The gap between a January night and a July afternoon is 26°C. None of the 11 towns of 2,500+ in Gers gets more rain. Comfortable outdoor weather, highs of 20–25°C, belongs to May, June, September and October.
Figures from Météo-France’s Parleboscq station, 18 km north-east.
A year in Castex-d'Armagnac at a glance
Each month’s typical high and low in °C, at the Parleboscq station.
What a year in Castex-d'Armagnac feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Parleboscq.
About 874 mm of rain a year
November is the wettest month and July the driest. About 29 days a year bring 10 mm or more. The wettest of 11 towns of 2,500+ in Gers.
Rain by month
Millimeters
39 frosts and 90 days of 25°C a year
On about 39 nights a year the air drops to 0°C or below, and on about 1 days it stays below freezing all day. About 90 days a year reach 25°C, and 29 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Parleboscq: 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 Parleboscq
Parleboscq is 18 km north-east of Castex-d'Armagnac. Every figure on this page is the station’s, not a measurement in Castex-d'Armagnac itself.
| Station (Météo-France number) | Parleboscq (40218002) |
| Distance from the town | 18 km north-east |
| Station altitude | 155 m |
| Town altitude (its center) | 115 m |
| Period | 1991–2020 |
| Nearest station of any kind | 14 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.
How Castex-d'Armagnac 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 Gers.
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 |
|---|---|---|---|---|
| Castex-d'Armagnac | Parleboscq | 27.4°C | 2.1°C | 874 mm |
| Villeneuve-de-Marsan 12 km | Grenade-sur-Ad | 28.1°C 0.7°C warmer | 2.3°C about the same | 1,010 mm |
| Aire-sur-l'Adour 20 km | Grenade-sur-Ad | 28.1°C 0.7°C warmer | 2.3°C about the same | 1,010 mm |
| Eauze 21 km | same station | 27.4°C about the same | 2.1°C about the same | 874 mm |
| Mont-de-Marsan 27 km | Mont-de-Marsan | 27.8°C about the same | 2.1°C about the same | 918 mm |
| Saint-Pierre-du-Mont 28 km | Mont-de-Marsan | 27.8°C about the same | 2.1°C about the same | 918 mm |
Castex-d'Armagnac weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Parleboscq station.
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 10.2°C | 2.1°C | 6.1°C | 84 mm |
| February | 11.6°C | 2.0°C | 6.8°C | 63 mm |
| March | 15.6°C | 4.3°C | 10.0°C | 64 mm |
| April | 17.8°C | 6.7°C | 12.2°C | 81 mm |
| May | 21.8°C | 10.2°C | 16.0°C | 78 mm |
| June | 25.0°C | 13.2°C | 19.1°C | 68 mm |
| July | 27.4°C | 14.9°C | 21.2°C | 53 mm |
| August | 27.7°C | 14.9°C | 21.3°C | 56 mm |
| September | 24.6°C | 11.8°C | 18.2°C | 68 mm |
| October | 20.0°C | 9.3°C | 14.7°C | 75 mm |
| November | 13.7°C | 5.2°C | 9.4°C | 96 mm |
| December | 10.5°C | 2.7°C | 6.6°C | 87 mm |
| Year | 18.8°C | 8.1°C | 13.5°C | 874 mm |
Where Castex-d'Armagnac’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Parleboscq, 18 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 Gers.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Castex-d'Armagnac’s climate
How warm does Castex-d'Armagnac get in summer?
August is the warmest month, with average highs of 27.7°C. About 90 days a year reach 25°C, more than 82% of mainland French towns, and about 29 reach 30°C.
How cold does Castex-d'Armagnac get in winter?
February nights average 2.0°C. The air drops to 0°C or below on about 39 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Castex-d'Armagnac get?
About 874 mm a year, more than 74% of mainland French towns. November is the wettest month (96 mm) and July the driest (53 mm).
Are these figures for Castex-d'Armagnac itself?
No: they are the normals of the Météo-France station matched to Castex-d'Armagnac, Parleboscq, 18 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 PARLEBOSCQ, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Castex-d'Armagnac →
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.