Fewer days reach 25 degrees in Halloy than in 82% of mainland French towns
Midwinter brings lows of about 1.4°C. From frosty January to warm July, readings climb 23°C. By rainfall alone, it ranks drier than 82% of mainland French towns. Central heating does most of its work from November to April, in months below 10°C on average.
These are the figures of Météo-France’s Beauvais-Tillé station, 27 km south-east; at that distance they describe the area more than the town.
A year in Halloy at a glance
Each month’s typical high and low in °C, at the Beauvais-Tillé station.
What a year in Halloy feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Beauvais-Tillé.
About 656 mm of rain a year
December is the wettest month and April the driest. About 16 days a year bring 10 mm or more. 39th wettest of 59 towns of 2,500+ in Oise.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Beauvais-Tillé
A frosty town: 53 frosts and 38 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 38 days a year reach 25°C, and 9 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Beauvais-Tillé: 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 Beauvais-Tillé
Beauvais-Tillé is 27 km south-east of Halloy. Every figure on this page is the station’s, not a measurement in Halloy itself.
| Station (Météo-France number) | Beauvais-Tillé (60639001) |
| Distance from the town | 27 km south-east |
| Station altitude | 89 m |
| Town altitude (its center) | 197 m |
| Period | 1991–2020 |
| Nearest station of any kind | 11 km |
| Sunshine measured at | the same station |
Halloy sits 108 m higher than the station. Air usually cools by about 0.65°C every 100 m, so expect Halloy to run about 0.7°C cooler than these figures.
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 Halloy 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 Oise.
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 |
|---|---|---|---|---|
| Halloy | Beauvais-Tillé | 24.4°C | 1.4°C | 656 mm |
| Grandvilliers 1.3 km | same station | 24.4°C about the same | 1.4°C about the same | 656 mm |
| Crèvecœur-le-Grand 12 km | same station | 24.4°C about the same | 1.4°C about the same | 656 mm |
| Gournay-en-Bray 25 km | Étrépagny | 25.3°C 0.9°C warmer | 1.4°C about the same | 774 mm |
| Breteuil 26 km | Rouvroy-les-Merles | 24.5°C about the same | 1.2°C about the same | 648 mm |
| Beauvais 27 km | same station | 24.4°C about the same | 1.4°C about the same | 656 mm |
| Forges-les-Eaux 28 km | Rouen-Boos | 23.4°C 1°C cooler | 1.6°C about the same | 848 mm |
Halloy weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Beauvais-Tillé station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.7°C | 1.4°C | 4.1°C | 54 mm | 60 |
| February | 7.8°C | 1.2°C | 4.5°C | 45 mm | 79 |
| March | 11.6°C | 3.0°C | 7.3°C | 46 mm | 127 |
| April | 15.2°C | 4.4°C | 9.8°C | 45 mm | 179 |
| May | 18.6°C | 7.9°C | 13.2°C | 61 mm | 203 |
| June | 21.8°C | 11.0°C | 16.4°C | 53 mm | 209 |
| July | 24.4°C | 12.8°C | 18.6°C | 54 mm | 220 |
| August | 24.4°C | 12.9°C | 18.6°C | 58 mm | 208 |
| September | 20.6°C | 10.1°C | 15.4°C | 49 mm | 164 |
| October | 15.7°C | 7.6°C | 11.7°C | 58 mm | 112 |
| November | 10.4°C | 4.3°C | 7.4°C | 58 mm | 68 |
| December | 7.1°C | 1.8°C | 4.5°C | 76 mm | 55 |
| Year | 15.4°C | 6.5°C | 11.0°C | 656 mm | 1,682 |
Where Halloy’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Beauvais-Tillé, 27 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, Beauvais-Tillé, 27 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 Oise.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Halloy’s climate
How warm does Halloy 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 9 reach 30°C.
How cold does Halloy get in winter?
February nights average 1.2°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 Halloy get?
About 656 mm a year, less than 82% of mainland French towns. December is the wettest month (76 mm) and April the driest (45 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Beauvais-Tillé (27 km away), averages 1,682 hours of sunshine a year.
Are these figures for Halloy itself?
No: they are the normals of the Météo-France station matched to Halloy, Beauvais-Tillé, 27 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 BEAUVAIS-TILLE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Halloy →
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.