West Lafayette, OH climate
West Lafayette has chilly winters and warm summers. A typical July afternoon reaches 84°, a January night drops to 20°, and about 15 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in West Lafayette feels like
Winter
Spring
Summer
Fall
West Lafayette weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 37° | 20° | 2.9" | 5.6" | 14 | 10 | 20° – 40° |
| February | 41° | 22° | 2.4" | 3.1" | 11 | 5 | 18° – 40° |
| March | 51° | 30° | 3.3" | 2.9" | 12 | 1 | 34° – 52° |
| April | 64° | 40° | 3.9" | 0.2" | 14 | 0 | 46° – 56° |
| May | 73° | 49° | 4.1" | 0 | 13 | 0 | 55° – 68° |
| June | 81° | 58° | 4.8" | 0 | 12 | 0 | 66° – 72° |
| July | 84° | 62° | 4.1" | 0 | 11 | 0 | 69° – 78° |
| August | 83° | 61° | 3.8" | 0 | 10 | 0 | 67° – 77° |
| September | 77° | 53° | 3.1" | 0 | 9 | 0 | 62° – 70° |
| October | 65° | 42° | 2.9" | 0 | 11 | 0 | 50° – 59° |
| November | 52° | 33° | 2.8" | 0.5" | 11 | 0 | 36° – 49° |
| December | 41° | 26° | 3.0" | 3.0" | 12 | 3 | 23° – 44° |
| Year | 62° | 41° | 41.0" | 15.3" | 139 | 19 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in West Lafayette
West Lafayette gets 41 inches of rain and melted snow a year. June is the wettest month and February the driest. Rain or snow falls on about 139 days a year. Snow covers the ground about 19 days of the year.
About 174 frost-free days a year
In half of years the last 32° night comes by April 27 and the first one by October 18. That leaves about 174 frost-free days for gardens, shorter than 56% of U.S. towns.
Heating and cooling a home in West Lafayette
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In West Lafayette, 88% of that work is heating and 12% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
How West Lafayette compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in West Lafayette averaged 1.3° warmer than the 1900s. The biggest change is in December (+2.7°). The shift is larger than in 58% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at West Lafayette’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. February swings the most: between 1991 and 2020 its average temperature ranged from 18° to 40°. June is the most reliable, staying within 7°.
Common questions about West Lafayette’s climate
What is the coldest month in West Lafayette?
January, with a typical high of 37° and a low of 20°.
What is the hottest month in West Lafayette?
July, with a typical high of 84° and a low of 62°. About 11 days a year reach 90°.
How much snow does West Lafayette get?
About 15 inches in a normal winter, most of it in January.
When is the first frost in West Lafayette?
In half of years the first 32° night comes by October 18, and the last spring frost by April 27.
What is the rainiest month in West Lafayette?
June, with 4.8 inches of rain and melted snow. The year totals 41 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for West Lafayette itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Coshocton Wpc Plt, OH (7 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.