Climate and monthly weather forecastWest Lafayette, IN
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in West Lafayette, Indiana, with an average temperature fluctuating between 31.8°F (-0.1°C) and 19.8°F (-6.8°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 31.8°F (-0.1°C) and a low of 19.8°F (-6.8°C). Weather in January »Weather in February
The last month of the winter, February, is a wintry month in West Lafayette, Indiana, with an average temperature ranging between min 23.2°F (-4.9°C) and max 36.3°F (2.4°C). West Lafayette records a slight change with February's average high-temperatures adjusting to an icy 36.3°F (2.4°C) from January's 31.8°F (-0.1°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in West Lafayette, Indiana, with temperature in the range of an average high of 48.7°F (9.3°C) and an average low of 33.4°F (0.8°C). An upsurge in temperatures occurs as February gives way to March, with average highs shifting from an icy 36.3°F (2.4°C) to a chilly 48.7°F (9.3°C). Weather in March »Weather in April
April in West Lafayette, Indiana, is a refreshing spring month, with temperature in the range of an average low of 44.2°F (6.8°C) and an average high of 60.3°F (15.7°C). West Lafayette in April shows a temperature shift, moving from an average high of a chilly 48.7°F (9.3°C) in March to a mild 60.3°F (15.7°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in West Lafayette, Indiana, with an average temperature varying between 54.9°F (12.7°C) and 71.6°F (22°C). May's onset brings a temperature rise, moving from a mild 60.3°F (15.7°C) in April to an agreeable 71.6°F (22°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in West Lafayette, Indiana, with an average temperature varying between 62.6°F (17°C) and 79.3°F (26.3°C). In West Lafayette, the onset of June comes with a modest high-temperature shift, transitioning from May's pleasant 71.6°F (22°C) to a warm 79.3°F (26.3°C). Weather in June »Weather in July
July, like June, in West Lafayette, Indiana, is a moderately hot summer month, with an average temperature fluctuating between 81.1°F (27.3°C) and 64°F (17.8°C). West Lafayette's temperature records reveal July as the warmest month, marked by average highs of 81.1°F (27.3°C) and lows of 64°F (17.8°C). The heat index value during July is appraised at a tropical 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in West Lafayette, Indiana, with an average temperature fluctuating between 62.8°F (17.1°C) and 80.2°F (26.8°C). August's onset sees an average high-temperature of a still moderately hot 80.2°F (26.8°C), exhibiting a slight fluctuation from the previous month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in West Lafayette, Indiana, with an average temperature varying between 75.6°F (24.2°C) and 57°F (13.9°C). The transition from August to September sees average high-temperatures adjusting to a still moderately hot 75.6°F (24.2°C), from a not significantly different 80.2°F (26.8°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in West Lafayette, Indiana, with an average temperature ranging between max 62.8°F (17.1°C) and min 46.9°F (8.3°C). October's onset brings a slight change in high-temperatures, falling from a moderately hot 75.6°F (24.2°C) in September to a comfortable 62.8°F (17.1°C). Weather in October »Weather in November
November, the last month of the autumn in West Lafayette, is another chilly month, with an average temperature varying between 35.1°F (1.7°C) and 48.2°F (9°C). November witnesses a clear temperature decrease, falling from an enjoyable 62.8°F (17.1°C) in October to a chilly 48.2°F (9°C). Weather in November »Weather in December
December, the first month of the winter in West Lafayette, is also a wintry month, with an average temperature ranging between max 37.6°F (3.1°C) and min 27.3°F (-2.6°C). Start of December brings a shift in the average high-temperature, falling from November's chilly 48.2°F (9°C) to a wintry 37.6°F (3.1°C). Weather in December »Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
With an average high-temperature of 31.8°F (-0.1°C) and an average low-temperature of 19.8°F (-6.8°C), January is the coldest month in West Lafayette, Indiana.
In West Lafayette, Indiana, during the entire year, the rain falls for 153.1 days and collects up to 22.13" (562mm) of precipitation.
January through April, November and December are months with snowfall in West Lafayette, Indiana.
The months with the most snowfall in West Lafayette, Indiana, are January and February, with an average 2.44" (62mm) of accumulated snow.
Throughout the year, in West Lafayette, Indiana, there are 38.6 snowfall days, and 8.39" (213mm) of snow is accumulated.
With an average of 3.9h of sunshine, January has the least sunshine of the year in West Lafayette.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in West Lafayette, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
The months with the most rainfall are April and May, with an average 2.8" (71mm) of precipitation.
In West Lafayette, snow does not fall in May through October.
June has the longest days of the year in West Lafayette, with an average of 15h and 0min of daylight.
June and July, with an average of 9.9h of sunshine, are months with the most sunshine.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
July, recording an average high temperature of 81.1°F (27.3°C) and a low temperature of 64°F (17.8°C), is West Lafayette's warmest month.
The most humid month in West Lafayette is July, with an average relative humidity of 84%.
The month with the least rainfall in West Lafayette is September, when the rain falls for 11.2 days and typically collects 1.1" (28mm) of precipitation.
With an average relative humidity of 73%, October is the least humid month in West Lafayette, Indiana.
The month with the shortest days in West Lafayette is December, with an average of 9h and 18min of daylight.
The month with the lowest UV index in West Lafayette is December, with an average maximum UV index of 1.
Average temperature
West Lafayette, IN
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure
West Lafayette, IN
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
West Lafayette, IN
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.8mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
West Lafayette, IN
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).
Average rainfall
West Lafayette, IN
- Average rainfall in January:
1.34" - Average rainfall in February:
1.14" - Average rainfall in March:
2.09" - Average rainfall in April:
2.8" - Average rainfall in May:
2.8" - Average rainfall in June:
2.4"
The wettest months (with the highest rainfall) are April and May (2.8").
The driest month (with the least rainfall) is September (1.1").
Average rainfall days
West Lafayette, IN
- Average rainfall days in January:
7 days - Average rainfall days in February:
6.5 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
15.8 days - Average rainfall days in May:
18.5 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
17.4 days - Average rainfall days in August:
16 days - Average rainfall days in September:
11.2 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
9.6 days - Average rainfall days in December:
8.9 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (6.5 days).
Average snowfall
West Lafayette, IN
The months with the highest snowfall are January and February (2.44").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
West Lafayette, IN
- Average snowfall days in January:
11.1 days - Average snowfall days in February:
9.3 days - Average snowfall days in March:
4.8 days - Average snowfall days in April:
1.3 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.3 days - Average snowfall days in November:
2.6 days - Average snowfall days in December:
9.1 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
West Lafayette, IN
- Average daylight in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
5h and 6min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 0min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 6min - Average sunshine in September:
8h and 12min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 18min
The months with the most sunshine are June and July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
West Lafayette, IN
- Average sunshine days in January:
13.9 days - Average sunshine days in February:
12.5 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
11.3 days - Average sunshine days in May:
9.8 days - Average sunshine days in June:
10.2 days
- Average sunshine days in July:
10 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
14.9 days - Average sunshine days in October:
17.2 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
15.1 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (9.8 days).
Average UV index
West Lafayette, IN
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
West Lafayette, IN
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are June and August (Cloud cover 33).
Average visibility
West Lafayette, IN
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
