Lafayette, Indiana Climate by Month
Lafayette, Indiana, United States
Hot summers and freezing winters, with rain spread through the year.
Lafayette has hot summers and freezing winters, with rain spread through the year. Expect highs of 86°F (30°C) in July and 35°F (2°C) in January, with the coldest nights (January) near 19°F (-7°C). It gets 37 in (937 mm) of rain a year, spread across the months.
- Warmest month
- 86°F(30°C)
- Average high, July
- Coldest nights
- 19°F(-7°C)
- Average low, January
- Rain per year
- 37 in(937 mm)
- No clear rainy season
- Humidity
- 75%
- Sunniest: July
Best and worst months in Lafayette
Best for weatherMay and September are the best time for weather in Lafayette: highs near 77°F (25°C) and about 3.3 in (84 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 35°F (2°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Lafayette weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 35°F(2°C) | 19°F(-7°C) | 2.1 in(54 mm) | 100% | 1.5 |
| FebFebruary | 40°F(4°C) | 22°F(-6°C) | 1.8 in(46 mm) | 86% | 2.5 |
| MarMarch | 51°F(10°C) | 31°F(0°C) | 2.7 in(68 mm) | 69% | 3.6 |
| AprApril | 63°F(17°C) | 41°F(5°C) | 3.9 in(98 mm) | 67% | 4.5 |
| MayMayBest | 74°F(24°C) | 52°F(11°C) | 3.9 in(99 mm) | 71% | 5.2 |
| JunJune | 83°F(29°C) | 61°F(16°C) | 4.5 in(114 mm) | 70% | 5.8 |
| JulJuly | 86°F(30°C) | 65°F(18°C) | 3.5 in(88 mm) | 70% | 6.0 |
| AugAugust | 85°F(29°C) | 63°F(17°C) | 3.6 in(92 mm) | 74% | 5.3 |
| SepSeptemberBest | 79°F(26°C) | 55°F(13°C) | 2.7 in(69 mm) | 67% | 4.4 |
| OctOctober | 66°F(19°C) | 44°F(7°C) | 2.8 in(71 mm) | 67% | 2.9 |
| NovNovember | 52°F(11°C) | 33°F(1°C) | 2.8 in(70 mm) | 75% | 1.8 |
| DecDecember | 40°F(4°C) | 24°F(-4°C) | 2.7 in(68 mm) | 83% | 1.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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