West Lafayette, IN Weather
West Lafayette, IN climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 20's.
The warmest month of the year is July with an average maximum temperature of 86.30 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 17.20 degrees Fahrenheit.
Temperature variations between night and day tend to be moderate during summer with a difference that can reach 22 degrees Fahrenheit, and fairly limited during winter with an average difference of 16 degrees Fahrenheit.
The annual average precipitation at West Lafayette is 36.32 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is June with an average rainfall of 4.24 Inches.
Weather Data
Current Conditions
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Fair, 45°F | Humidity: 74% | Dewpoint: 37°F |
| Wind Speed: E 6.9 MPH (6 KT) | Heat Index: 45°F | ||
| Barometer: 30.18 in. | Wind Chill: 41°F |
Weather Forecast
| Tonight: Mostly clear. Patchy fog early in the morning. Lows in the upper 30s. East winds up to 5 mph. | ||
| Lo: 39°F | ||
| Hi: 59°F | Sunday: Mostly sunny until midday then becoming partly cloudy. Highs in the upper 50s. East winds up to 10 mph. | |
| Lo: 39°F | ||
| Hi: 59°F | Monday: Partly cloudy. Highs in the upper 50s. Southeast winds around 5 mph. | |
| Lo: 39°F | ||
| Hi: 51°F | Tuesday: Mostly cloudy with a 40 percent chance of rain showers. Highs in the lower 50s. Lows in the upper 30s. | |
| Lo: 39°F | ||
| Hi: 45°F | Wednesday: Mostly cloudy with a 30 percent chance of rain showers. Highs in the mid 40s. | |
| Lo: 31°F | ||
| Hi: 39°F | Thanksgiving day: Mostly cloudy with a 20 percent chance of rain showers and snow showers. Highs in the upper 30s. | |
| Lo: 31°F | ||
| Hi: 41°F | Friday: Mostly clear. Highs in the lower 40s. Lows in the lower 30s. | |
| Lo: 31°F |
Moon, Sunrise and Sunset
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Moon Phase: Waxing Crescent Moon | Civil Twilight: 7:10 AM EST |
Sunrise: 7:39 AM EST |
| Sunset: 5:26 PM EST |
Civil Twilight: 5:55 PM EST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 33.1 | 38.4 | 50.2 | 62.4 | 73.9 | 83.0 | 86.3 | 84.2 | 78.2 | 66.0 | 51.1 | 38.1 | 62.1 |
| Mean °F | 25.2 | 30.1 | 40.7 | 51.2 | 62.3 | 71.6 | 75.5 | 73.4 | 66.5 | 54.7 | 42.5 | 30.6 | 52.0 |
| Min °F | 17.2 | 21.7 | 31.2 | 40.0 | 50.6 | 60.1 | 64.7 | 62.6 | 54.7 | 43.3 | 33.8 | 23.0 | 41.9 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 1.84 | 1.58 | 2.89 | 3.45 | 3.93 | 4.24 | 3.81 | 3.91 | 2.74 | 2.55 | 2.81 | 2.57 | 36.32 |

