Lexington weather by month
Lexington runs from about 0°C in January to 24°C in July, with April the wettest month at 144 mm.
warmest month
July
24°C
coolest month
January
0°C
wettest month
April
144 mm
worst air month
February
13 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 0°C | 132 mm | 139 h | 8 |
| February | 6°C | 83 mm | 237 h | 13 |
| March | 9°C | 95 mm | 248 h | 7 |
| April | 14°C | 144 mm | 279 h | 6 |
| May | 19°C | 117 mm | 315 h | 6 |
| June | 23°C | 59 mm | 358 h | 8 |
| July | 24°C | 92 mm | 351 h | 12 |
| August | 24°C | 62 mm | 375 h | 11 |
| September | 21°C | 122 mm | 279 h | 10 |
| October | 15°C | 6 mm | 317 h | 5 |
| November | 10°C | 138 mm | 167 h | 6 |
| December | 4°C | 120 mm | 151 h | 8 |
About 3,216 hours of sun a year. Roughly 117 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.