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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is a freezing cold winter month in Lafayette, Illinois, with an average temperature fluctuating between 28.8°F (-1.8°C) and 16.7°F (-8.5°C). Lafayette's January weather, marked by an average high temperature of 28.8°F (-1.8°C) and an average low temperature of 16.7°F (-8.5°C), is the coldest in the year. Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Lafayette, Illinois, with an average temperature ranging between max 33.3°F (0.7°C) and min 20.5°F (-6.4°C). February's presence records an average high-temperature of a cold 33.3°F (0.7°C), closely mirroring January's climate. Weather in February »
Weather in March
March, the first month of the spring in Lafayette, is a chilly month, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 47.1°F (8.4°C). March's arrival is marked by an increase in the average high-temperature, moving from an icy 33.3°F (0.7°C) in February to a frosty 47.1°F (8.4°C). Weather in March »
Weather in April
April is a moderate spring month in Lafayette, Illinois, with an average temperature varying between 42.4°F (5.8°C) and 59.2°F (15.1°C). The beginning of April signals a rise in the average high-temperature, moving from a chilly 47.1°F (8.4°C) in March to a refreshing 59.2°F (15.1°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Lafayette, Illinois, with an average temperature ranging between min 53.6°F (12°C) and max 70.7°F (21.5°C). As Lafayette transitions into May, a rise in the average high-temperature is observed, moving from a refreshing 59.2°F (15.1°C) in April to a pleasant 70.7°F (21.5°C). Weather in May »
Weather in June
June, the first month of the summer in Lafayette, is a moderately hot month, with an average temperature ranging between max 78.6°F (25.9°C) and min 62.1°F (16.7°C). The arrival of June introduces a minor uplift in high-temperatures, adjusting from an agreeable 70.7°F (21.5°C) in May to a warm 78.6°F (25.9°C). Weather in June »
Weather in July
July, like June, in Lafayette, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 64.6°F (18.1°C) and 81°F (27.2°C). Lafayette's July weather, with an average high temperature of 81°F (27.2°C) and an average low temperature of 64.6°F (18.1°C), tends to be the warmest of the year. July's average heat index is computed to be a hot 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 Lafayette, Illinois, with an average temperature varying between 80.1°F (26.7°C) and 62.6°F (17°C). The shift from July to August is characterized by an average high-temperature of a still warm 80.1°F (26.7°C), not significantly different from the 81°F (27.2°C) of July. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Lafayette, Illinois, with an average temperature fluctuating between 74.8°F (23.8°C) and 56.3°F (13.5°C). Lafayette, Illinois, observes an average high-temperature of a still warm 74.8°F (23.8°C) in September, barely different from 80.1°F (26.7°C) in August. Weather in September »
Weather in October
October, like September, in Lafayette, Illinois, is another enjoyable autumn month, with an average temperature ranging between min 45.5°F (7.5°C) and max 61.3°F (16.3°C). A shift in Lafayette's weather is observed as September turns into October, with the average high temperature reducing from a moderately hot 74.8°F (23.8°C) to a refreshing 61.3°F (16.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Lafayette, Illinois, with an average temperature varying between 47.1°F (8.4°C) and 33.4°F (0.8°C). Lafayette in November demonstrates a small temperature transition, adjusting from an average high of an enjoyable 61.3°F (16.3°C) in October to a chilly 47.1°F (8.4°C). Weather in November »
Weather in December
December, the first month of the winter in Lafayette, is still a cold month, with an average temperature varying between 34.7°F (1.5°C) and 24.1°F (-4.4°C). December's arrival comes with a decrease in the average high-temperature, moving from a chilly 47.1°F (8.4°C) in November to a wintry 34.7°F (1.5°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Lafayette?
With an average high-temperature of 28.8°F (-1.8°C) and an average low-temperature of 16.7°F (-8.5°C), January is the coldest month in Lafayette, Illinois.
What is the driest month in Lafayette?
January and December are months with the least rain when the rain falls for 6.1 days and typically aggregates up to 1.42" (36mm) of rain.
How much does it rain in Lafayette?
Throughout the year, in Lafayette, Illinois, there are 147.2 rainfall days, and 29.17" (741mm) of precipitation is accumulated.
When does it snow in Lafayette?
January through April, October through December are months with snowfall.
When does it snow the most in Lafayette?
The month with the most snowfall is January, when snow falls for 11.4 days and typically aggregates up to 3.66" (93mm) of snow.
How many days does it snow in Lafayette?
Throughout the year, in Lafayette, there are 37 snowfall days, and 12.91" (328mm) of snow is accumulated.
What is the month with the least sunshine in Lafayette?
With an average of 3.9h of sunshine, January has the least sunshine of the year in Lafayette.
What is the month with the lowest UV index in Lafayette?
January is the month with the lowest UV index, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Lafayette?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the wettest month in Lafayette?
May is the month with the most rainfall. Rain falls for 18.3 days and accumulates 4.45" (113mm) of precipitation.
When it does not snow in Lafayette?
In Lafayette, snow does not fall in May through September.
When are the longest days in Lafayette?
With an average of 15h and 6min of daylight, June has the longest days of the year.
What are the months with the most sunshine in Lafayette?
June and July, with an average of 10h of sunshine, are months with the most sunshine.
When is the highest UV index in Lafayette?
June and July, with an average maximum UV index of 6, are months with the highest UV index.
What is the hottest time of year in Lafayette?
July registers as the month with the average highest temperatures, reaching 81°F (27.2°C) at its peak and 64.6°F (18.1°C) at the lowest.
What is the most humid month in Lafayette?
With an average relative humidity of 84%, July is the most humid month.
What is the least humid month in Lafayette?
October is the least humid month in Lafayette, with an average relative humidity of 72%.
What is the month with the shortest days in Lafayette?
December has the shortest days of the year in Lafayette, Illinois, with an average of 9h and 18min of daylight.
Average temperature
Lafayette, IL
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°F).
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure
Lafayette, IL
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"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 (29.91"Hg).
Average wind speed
Lafayette, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9.1mph - Average wind speed in June:
7.9mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.8mph - Average wind speed in October:
9.4mph - Average wind speed in November:
10.3mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity
Lafayette, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Lafayette, IL
- Average rainfall in January:
1.42" - Average rainfall in February:
1.57" - Average rainfall in March:
2.05" - Average rainfall in April:
3.5" - Average rainfall in May:
4.45" - Average rainfall in June:
3.31"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.01" - Average rainfall in September:
2.05" - Average rainfall in October:
2.72" - Average rainfall in November:
1.81" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.42").
Average rainfall days
Lafayette, IL
- Average rainfall days in January:
6.1 days - Average rainfall days in February:
5.6 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
18.3 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
17.1 days - Average rainfall days in August:
13.8 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
12.3 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
7.9 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.6 days).
Average snowfall
Lafayette, IL
The month with the highest snowfall is January (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Lafayette, IL
- Average snowfall days in January:
11.4 days - Average snowfall days in February:
9.1 days - Average snowfall days in March:
4.5 days - Average snowfall days in April:
1.2 days - Average snowfall days in May:
0 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:
0.5 days - Average snowfall days in November:
3 days - Average snowfall days in December:
7.3 days
The month with the highest number of snowfall days is January (11.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Lafayette, IL
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 3min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
4h and 1min - Average sunshine in March:
6h and 4min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Lafayette, IL
- Average sunshine days in January:
15.2 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
11.5 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
10.2 days
- Average sunshine days in July:
10.6 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
16.2 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
18 days - Average sunshine days in December:
17.5 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (10.2 days).
Average UV index
Lafayette, IL
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Lafayette, IL
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility
Lafayette, IL
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).
Lafayette, Illinois, USA
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