Climate averages 1991–2020
Lexington weather
by month.
See how the year changes. July has the highest average daily maximum; August has the lowest average monthly rainfall.
Long-term climate patterns, not a forecast for a particular trip.
Across the year Lexington averages a daytime high of 18.1°C and a nighttime low of 8.8°C, with about 1,210 mm of rain on roughly 131 days. July is the warmest month (average high 29.4°C) and January the coolest (5.3°C). April is the wettest month with 125 mm; August is the driest with 79 mm.
The annual picture
A year in Lexington
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Lexington climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.3°C-2.9°C | -2.9°C | 93 | 10.4 | 9.910 h |
| February | 7.7°C-1.5°C | -1.5°C | 96 | 10.3 | 10.811 h |
| March | 12.5°C2.4°C | 2.4°C | 114 | 12.1 | 11.912 h |
| April | 18.4°C7.8°C | 7.8°C | 125 | 12.1 | 13.213 h |
| May | 23.0°C13.2°C | 13.2°C | 121 | 13.4 | 14.214 h |
| June | 27.6°C17.8°C | 17.8°C | 109 | 13.3 | 14.815 h |
| July | 29.4°C20.0°C | 20.0°C | 105 | 12.5 | 14.515 h |
| August | 29.1°C19.4°C | 19.4°C | 79 | 10.5 | 13.614 h |
| September | 25.6°C15.9°C | 15.9°C | 89 | 8.4 | 12.512 h |
| October | 19.2°C9.8°C | 9.8°C | 86 | 8.6 | 11.211 h |
| November | 12.3°C3.8°C | 3.8°C | 88 | 8.9 | 10.210 h |
| December | 7.1°C-0.4°C | -0.4°C | 106 | 10.8 | 9.610 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
Nearby cities
- LouisvilleUnited States · 116 kmHigh 18.6°C · Low 9.2°C · 1,169 mm rain a year
- CincinnatiUnited States · 127 kmHigh 17.1°C · Low 7.7°C · 1,087 mm rain a year
- MeadsUnited States · 162 kmHigh 18.5°C · Low 9.2°C · 1,176 mm rain a year
- DaytonUnited States · 198 kmHigh 16.3°C · Low 7.5°C · 1,066 mm rain a year
- Bloomington (Indiana), United StatesUnited States · 221 kmHigh 17.1°C · Low 8.1°C · 1,131 mm rain a year
- KnoxvilleUnited States · 231 kmHigh 19.8°C · Low 9.9°C · 1,222 mm rain a year
- IndianapolisUnited States · 246 kmHigh 16.3°C · Low 7.4°C · 1,075 mm rain a year
- ColumbusUnited States · 254 kmHigh 16.2°C · Low 6.9°C · 1,057 mm rain a year
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsWhat do the high and low temperatures mean?
We average the daily maximum and daily minimum for each calendar month over 1991–2020. They are not record extremes, a forecast range or temperatures at a fixed time of day.
How is a rain day counted?
A local calendar day (standard time, UTC-5, no daylight saving) with at least 1 mm of total precipitation counts as one rain day. We count these for each year and month, then average across 30 years. The average does not predict which days will be wet.
Where do the numbers come from?
ERA5-Land (temperature) and ERA5 (precipitation) reanalysis from the Copernicus Climate Change Service, read from the Open-Meteo open-data archive. Temperature comes from the 0.1° model cell at 38.00°, -84.50° (2 km from the city centre). Rain comes from the 0.25° cell at 38.00°, -84.50°. These are model estimates, not weather-station readings; coast, hills and city streets can differ.
Does this page show sunshine, humidity or sea temperature?
No. The data used here contain air temperature and precipitation only. Daylight hours are calculated from the city's latitude (sunrise to sunset), not measured sunshine.