West Lafayette (IN) monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at West Lafayette

West Lafayette average temperature chart (Celsius) West Lafayette average temperature chart (Fahrenheit)
Average monthly temperatures in West Lafayette (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 0.1 2.7 9.6 16.9 23 28.1 29.6 28.2 25.2 18.4 10.6 2.8
°F 32.2 36.8 49.3 62.5 73.4 82.5 85.3 82.8 77.3 65.1 51.1 37.1

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

West Lafayette monthly rainfall chart (mm) West Lafayette monthly rainfall chart (inches)
Average monthly rainfall in West Lafayette (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 52 46 73 97 98 105 89 102 73 66 72 72
inches 2.1 1.8 2.9 3.8 3.8 4.1 3.5 4 2.9 2.6 2.8 2.8
Rainy days 11 10 13 12 11 9 10 9 9 9 10 13

Average annual rainfall in West Lafayette: 898mm (353.5 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in West Lafayette

West Lafayette average daily sunshine chart
Average daily sunshine West Lafayette
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 4.9 5.7 6.5 7.9 9.6 10.9 10.8 9.9 8.5 7 4.4 3.8

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

West Lafayette average minimum / maximum temperatures (Celsius) West Lafayette average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in West Lafayette (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -9.2 -7.3 -1.1 4.2 9.7 15 17.1 15.7 11.5 5.1 0.4 -5.7
Max °C 0.4 2.9 9.9 17.3 23.3 28.4 29.9 28.6 25.5 18.7 10.9 3.1
Min °F 15.5 18.9 30 39.5 49.5 59 62.8 60.2 52.7 41.2 32.6 21.8
Max °F 24.1 28 39.9 51.3 61.7 71.1 74.3 71.8 65.3 53.4 42.1 29.7

Sea temperature

The graph below shows the average sea temperature.

West Lafayette average sea temperature chart (Celsius) West Lafayette average sea temperature chart (Fahrenheit)
Average sea temperature around West Lafayette in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 6 5.2 5.2 6.4 9.2 14.7 20.8 22.9 20.9 15.7 11 7.7
°F 42.7 41.4 41.4 43.6 48.6 58.5 69.4 73.2 69.6 60.3 51.7 45.8

Wind speed

The graph below shows the average wind speed.

West Lafayette average winspeed by month (km/h) West Lafayette average winspeed by month (mph)
Average wind speed in West Lafayette (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 19 19 20 19 17 15 13 13 14 16 18 18
mph 12 12 12 12 10 9 8 8 9 10 11 11

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

West Lafayette relative humidity averages
Average relative humidity in West Lafayette
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
75% 74% 71% 66% 66% 67% 71% 74% 73% 71% 75% 78%

Other monthly averages

UV index Best time to go?

West Lafayette weather stats

West Lafayette weather statistics
Hottest month: July 29.6°C 85.3°F
Driest month: February 46mm 1.8ins
Sunniest month: July 10.8hrs
Coldest month: January 0.1°C 32.2°F
Wettest month: June 105mm 4.1ins
Warmest sea: August 22.9°C 73.2°F
Map showing location of West Lafayette (40.42587, -86.90807) West Lafayette map pin © Google

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