Lassay-les-Châteaux, France Climate
The warmest month is July, with an average high of 25°C; the coldest is February, with an average low of 1°C. A normal year brings 732 mm of precipitation.
Temperature through the year
The normal daily high and low and the record for every date at Alencon/Valframbert, since 1973. The line marks today.
- Normal low
- Normal high
- Record high
- Record low
Normals for Sep 30
- Normal high
- 19°C
- Normal low
- 8°C
- Record high
- 28°Cin 2011
- Record low
- 1°Cin 2018
- Chance of a wet day
- 48%
- Daylight
- 11 h 43 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Record high | Record low | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | 8°C | 1°C | 20°C (1978) | -17°C (1985) | 73 mm | 12.4 |
| February | 9°C | 1°C | 20°C (2019) | -14°C (2012) | 56 mm | 11.3 |
| March | 12°C | 3°C | 24°C (2021) | -9°C (2005) | 54 mm | 12.4 |
| April | 16°C | 5°C | 28°C (2018) | -4°C (2003) | 46 mm | 12.0 |
| May | 19°C | 8°C | 31°C (2005) | -2°C (1974) | 67 mm | 12.4 |
| June | 22°C | 11°C | 37°C (2022) | 2°C (1989) | 52 mm | 12.0 |
| July | 25°C | 13°C | 40°C (2019) | 5°C (2008) | 50 mm | 9.3 |
| August | 25°C | 13°C | 39°C (2003) | 2°C (1974) | 50 mm | 9.3 |
| September | 21°C | 9°C | 34°C (2023) | 0°C (1977) | 50 mm | 12.0 |
| October | 16°C | 7°C | 28°C (2011) | -5°C (1997) | 71 mm | 15.5 |
| November | 11°C | 4°C | 21°C (2015) | -8°C (1993) | 76 mm | 15.0 |
| December | 8°C | 2°C | 20°C (1977) | -10°C (2010) | 86 mm | 15.5 |
| Year | 16°C | 6°C | 732 mm | 149 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
732 mm in a normal year, most in December.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Lassay-les-Châteaux.
The muggiest month is July, when 2 percent of days are muggy or worse, with a mean dew point of 18°C or more.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | 3°C | 93% | 100% | 0% | 0% | 0% | 0% | 0% |
| February | 3°C | 89% | 100% | 0% | 0% | 0% | 0% | 0% |
| March | 4°C | 85% | 100% | 0% | 0% | 0% | 0% | 0% |
| April | 6°C | 81% | 99% | 1% | 0% | 0% | 0% | 0% |
| May | 9°C | 80% | 90% | 8% | 1% | 0% | 0% | 0% |
| June | 12°C | 78% | 66% | 25% | 8% | 1% | 0% | 0% |
| July | 13°C | 78% | 44% | 39% | 15% | 2% | 0% | 0% |
| August | 13°C | 78% | 43% | 38% | 17% | 2% | 0% | 0% |
| September | 11°C | 80% | 72% | 24% | 4% | 0% | 0% | 0% |
| October | 9°C | 87% | 87% | 12% | 0% | 0% | 0% | 0% |
| November | 6°C | 92% | 99% | 1% | 0% | 0% | 0% | 0% |
| December | 4°C | 94% | 100% | 0% | 0% | 0% | 0% | 0% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is September, with the sky 60 percent covered on average; the cloudiest is January, at 71 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is January, averaging 19.8 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jun 18, with 16 h 07 min of daylight; the shortest is Dec 20, with 8 h 18 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Lassay-les-Châteaux in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
A record is the highest or lowest value on the date in every year the station has reported, back to 1973. It rests on one station, so a neighbor a few miles away can hold different ones.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Nearby
Sources
Records: NOAA GHCN-Daily, station FRM00007139, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.