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Lafayette Weather by Month
Average temperatures, rainfall and humidity for Lafayette, United States, month by month, built from OpenWeather’s historical records. Use it to see what a typical Lafayette month looks like before you travel — then check the live Lafayette forecast for the days ahead.
Warmest month
August
33°C average high
Coolest month
January
7°C average low
Wettest month
August
102 mm of rain
Driest month
November
50 mm of rain
Average temperature and rainfall in Lafayette by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 17°C | 7°C | -16°C / 27°C | 85 mm | 76% | 13 km/h |
| February | 20°C | 10°C | -9°C / 48°C | 54 mm | 78% | 13 km/h |
| March | 23°C | 13°C | -2°C / 30°C | 52 mm | 74% | 12 km/h |
| April | 26°C | 16°C | 4°C / 31°C | 83 mm | 75% | 12 km/h |
| May | 29°C | 20°C | 7°C / 34°C | 97 mm | 77% | 10 km/h |
| June | 32°C | 23°C | 16°C / 37°C | 84 mm | 78% | 10 km/h |
| July | 33°C | 24°C | 13°C / 37°C | 89 mm | 80% | 9 km/h |
| August | 33°C | 23°C | 0°C / 42°C | 102 mm | 79% | 9 km/h |
| September | 31°C | 22°C | 10°C / 43°C | 92 mm | 79% | 8 km/h |
| October | 28°C | 17°C | 2°C / 36°C | 64 mm | 76% | 10 km/h |
| November | 22°C | 11°C | -4°C / 31°C | 50 mm | 77% | 11 km/h |
| December | 19°C | 10°C | -7°C / 27°C | 96 mm | 80% | 11 km/h |
Best time to visit Lafayette
The most comfortable time to visit Lafayette is generally March to April and November, balancing mild daytime temperatures against the driest stretch of the year. The city has a moderate seasonal swing and rain concentrates around August, totalling about 947 mm a year.
Travellers who prefer heat should aim for August, when highs average 33°C. August is the month to avoid if rain would spoil your plans — it averages 102 mm, roughly 2× the rainfall of the driest month (November).
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Lafayette forecast for what is happening now.