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Monthly climate in Lafayette, Indiana, United States

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Lafayette features a humid continental climate (Dfa). Temperatures typically range between -2 °C (29 °F) and 25 °C (77 °F) through the year, but rarely can drop to -28 °C (-17 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 1118 mm (44.0 inches) and receives 131 rainy days on the 1 mm (0.04 inches) threshold annually. Lafayette enjoys an average of 2922 hours of sunshine throughout the year, and daylight varies from 9 hours 19 minutes to 14 hours 59 minutes per day.

Monthly average temperatures in Lafayette, Indiana, United States §

The warmest months in Lafayette are June, July and August, with daily mean temperatures ranging from 23 to 25 °C (74 - 77 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -2 to 2 °C (29 - 35 °F) throughout the day. On average each year, Lafayette experiences 101 days above 25 °C (77.0 °F) and 95 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Lafayette, Indiana, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 18°C
(65°F)		 21°C
(70°F)		 25°C
(77°F)		 29°C
(84°F)		 34°C
(94°F)		 34°C
(94°F)		 35°C
(95°F)		 34°C
(94°F)		 34°C
(93°F)		 32°C
(91°F)		 26°C
(78°F)		 18°C
(64°F)
Mean maximum 14°C
(57°F)		 16°C
(62°F)		 21°C
(70°F)		 27°C
(81°F)		 31°C
(89°F)		 33°C
(92°F)		 33°C
(92°F)		 33°C
(91°F)		 32°C
(91°F)		 30°C
(86°F)		 20°C
(67°F)		 16°C
(62°F)
Average high 2°C
(35°F)		 4°C
(39°F)		 11°C
(52°F)		 16°C
(61°F)		 23°C
(73°F)		 28°C
(82°F)		 29°C
(85°F)		 28°C
(83°F)		 26°C
(80°F)		 19°C
(67°F)		 10°C
(49°F)		 6°C
(43°F)
Daily mean -2°C
(29°F)		 -1°C
(31°F)		 5°C
(42°F)		 11°C
(52°F)		 18°C
(64°F)		 23°C
(74°F)		 25°C
(77°F)		 23°C
(74°F)		 21°C
(70°F)		 14°C
(57°F)		 5°C
(41°F)		 2°C
(35°F)
Average low -6°C
(22°F)		 -5°C
(23°F)		 1°C
(33°F)		 6°C
(42°F)		 13°C
(55°F)		 18°C
(65°F)		 20°C
(68°F)		 18°C
(65°F)		 16°C
(60°F)		 9°C
(49°F)		 1°C
(34°F)		 -2°C
(28°F)
Mean minimum -20°C
(-4°F)		 -18°C
(-1°F)		 -10°C
(14°F)		 -4°C
(26°F)		 3°C
(38°F)		 13°C
(55°F)		 14°C
(57°F)		 12°C
(54°F)		 8°C
(46°F)		 0°C
(33°F)		 -8°C
(18°F)		 -14°C
(7°F)
Minimum -28°C
(-17°F)		 -23°C
(-9°F)		 -17°C
(1°F)		 -7°C
(20°F)		 -2°C
(29°F)		 10°C
(50°F)		 13°C
(55°F)		 11°C
(52°F)		 5°C
(42°F)		 -2°C
(29°F)		 -13°C
(9°F)		 -24°C
(-11°F)

Compare climate in Lafayette with other places

Compare temperature, precipitation, sunshine, UV index in Lafayette, Indiana, United States with other places around the world.

Monthly average precipitation in Lafayette, Indiana, United States §

Lafayette usually has the most precipitation in March, May and October, with an average of 13 rainy days and 123 mm (4.9 inches) of precipitation per month. The driest months in Lafayette are January, September and December. On average, 67 mm (2.6 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Lafayette, Indiana, United States. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 74 (2.9) 77 (3.0) 106 (4.2) 97 (3.8) 152 (6.0) 100 (3.9) 99 (3.9) 101 (4.0) 65 (2.6) 112 (4.4) 75 (3.0) 62 (2.4)
Average precipitation days (≥ 1 mm) 8 12 12 11 15 12 12 11 9 12 8 9

Monthly sunshine hours in Lafayette, Indiana, United States §

The sunniest months in Lafayette are June, July and August, when the sun shines an average of 11 hours 1 minutes a day. Least sunny months in Lafayette: January, February and December receive an average of 5 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Lafayette, Indiana, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 113 166 221 239 281 331 351 331 289 228 189 178
Mean daily daylight hours 9h 38m 10h 40m 11h 58m 13h 18m 14h 26m 14h 59m 14h 41m 13h 41m 12h 24m 11h 4m 9h 54m 9h 19m

Solar UV radiation in Lafayette, Indiana, United States §

Lafayette experiences the highest level of ultraviolet (UV) radiation in May, June and July, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / Extreme category of sun exposure. January, November and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 4. For more detailed information, check out our hourly Lafayette UV Index data.

Average daily maximum UV levels by month for Lafayette, Indiana, United States. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 3 5 6 9 10 11 10 9 8 6 4 2

Detailed Monthly Weather Insights for Lafayette, Indiana, United States

Discover in-depth weather details for every month in Lafayette. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Lafayette's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.