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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, the same as December, in La Harpe, Illinois, is a freezing cold winter month, with an average temperature ranging between min 18.7°F (-7.4°C) and max 30.9°F (-0.6°C). January, having an average high-temperature of 30.9°F (-0.6°C) and an average low-temperature of 18.7°F (-7.4°C), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is an icy month in La Harpe, Illinois, with an average temperature fluctuating between 35.8°F (2.1°C) and 22.3°F (-5.4°C). La Harpe registers an average high-temperature of a wintry 35.8°F (2.1°C) with the arrival of February, showing minor deviation from the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in La Harpe, Illinois, with an average temperature ranging between max 49.6°F (9.8°C) and min 34.2°F (1.2°C). As La Harpe welcomes March, the average high-temperature sees a rise, transitioning from an icy 35.8°F (2.1°C) in February to a frosty 49.6°F (9.8°C). Weather in March »
Weather in April
April in La Harpe, Illinois, 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 61.3°F (16.3°C). As La Harpe, Illinois, transitions into April, the average high-temperature shows a change, moving from a frosty 49.6°F (9.8°C) in March to a refreshing 61.3°F (16.3°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in La Harpe, Illinois, with an average temperature varying between 54.9°F (12.7°C) and 71.6°F (22°C). The shift into May is accompanied by a temperature increase, with the average high-temperature rising from an enjoyable 61.3°F (16.3°C) in April to a pleasant 71.6°F (22°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in La Harpe, Illinois, with an average temperature ranging between min 63.7°F (17.6°C) and max 80.4°F (26.9°C). The arrival of June introduces a minor uplift in high-temperatures, adjusting from an agreeable 71.6°F (22°C) in May to a moderately hot 80.4°F (26.9°C). Weather in June »
Weather in July
July, like June, in La Harpe, Illinois, is another warm summer month, with an average temperature fluctuating between 82.6°F (28.1°C) and 66.2°F (19°C). July, marked by an average high-temperature of 82.6°F (28.1°C) and a low-temperature of 66.2°F (19°C), is the warmest month. The heat index value during July is appraised at a tropical 91.4°F (33°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in La Harpe, Illinois, with an average temperature ranging between min 63.7°F (17.6°C) and max 82.2°F (27.9°C). August's arrival brings an average high-temperature of a still warm 82.2°F (27.9°C), demonstrating subtle variation from the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in La Harpe, Illinois, with an average temperature ranging between min 57.4°F (14.1°C) and max 76.8°F (24.9°C). The shift from August to September includes a small decrease in the average high-temperature, from a moderately hot 82.2°F (27.9°C) to a still warm 76.8°F (24.9°C). Weather in September »
Weather in October
October, like September, in La Harpe, Illinois, is another comfortable autumn month, with an average temperature fluctuating between 63°F (17.2°C) and 46°F (7.8°C). October's arrival coincides with a drop in the average high-temperature, decreasing from September's warm 76.8°F (24.9°C) to an enjoyable 63°F (17.2°C). Weather in October »
Weather in November
November, the last month of the autumn in La Harpe, is another chilly month, with an average temperature varying between 34.7°F (1.5°C) and 48.9°F (9.4°C). The onset of November coincides with a reduction in the average high-temperature, falling from a comfortable 63°F (17.2°C) in October to a chilly 48.9°F (9.4°C). Weather in November »
Weather in December
December, the first month of the winter in La Harpe, is still a cold month, with an average temperature varying between 25.5°F (-3.6°C) and 37°F (2.8°C). December ushers in a slight temperature change, with average high-temperatures reducing from November's frosty 48.9°F (9.4°C) to a cold 37°F (2.8°C). Weather in December »
Updated: Jun 29, 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
What part of the year is the coldest?
With average high temperatures of 30.9°F (-0.6°C) and lows of 18.7°F (-7.4°C), January is the coldest month.
What is the driest month in La Harpe?
January is the month with the least rainfall in La Harpe. Rain falls for 4.3 days and accumulates 0.83" (21mm) of precipitation.
How much does it rain?
Throughout the year, there are 127.6 rainfall days, and 21.02" (534mm) of precipitation is accumulated.
When does it snow?
January through April, October through December are months with snowfall in La Harpe.
What is the snowiest month?
The month with the most snowfall is January, when snow falls for 8.5 days and typically aggregates up to 3.15" (80mm) of snow.
How many days does it snow?
In La Harpe, during the entire year, snow falls for 26.4 days and aggregates up to 9.06" (230mm) of snow.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4.1h of sunshine.
What are the months with the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
When is Daylight Saving Time (DST)?
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 rainiest month?
May is the month with the most rainfall. Rain falls for 17.5 days and accumulates 3.11" (79mm) of precipitation.
When it does not snow?
In La Harpe, snow does not fall in May through September.
When are the longest days?
June has the longest days of the year, with an average of 15h and 0min of daylight.
What are the months with the most sunshine?
The months with the most sunshine are June and July, with an average of 10h of sunshine.
What are the months with the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What is the hottest time of year?
La Harpe's temperatures peak on average in July, reaching 82.6°F (28.1°C) at their highest and 66.2°F (19°C) at their lowest.
What is the most humid month?
July is the most humid month in La Harpe, with an average relative humidity of 83%.
What is the least humid month?
The least humid month is October, with an average relative humidity of 71%.
What is the month with the shortest days in La Harpe?
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
La Harpe, IL
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (30.9°F).
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure
La Harpe, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
La Harpe, IL
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.5mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.7mph - Average wind speed in August:
6.7mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.4mph - Average wind speed in November:
10.2mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity
La Harpe, IL
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall
La Harpe, IL
- Average rainfall in January:
0.83" - Average rainfall in February:
1.1" - Average rainfall in March:
1.69" - Average rainfall in April:
2.4" - Average rainfall in May:
3.11" - Average rainfall in June:
2.44"
- Average rainfall in July:
2.13" - Average rainfall in August:
1.69" - Average rainfall in September:
1.77" - Average rainfall in October:
1.46" - Average rainfall in November:
1.42" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days
La Harpe, IL
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
4.6 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
17.5 days - Average rainfall days in June:
15.8 days
- Average rainfall days in July:
15 days - Average rainfall days in August:
11.7 days - Average rainfall days in September:
10.2 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
7.9 days - Average rainfall days in December:
5.6 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (4.3 days).
Average snowfall
La Harpe, IL
The month with the highest snowfall is January (3.15").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
La Harpe, IL
- Average snowfall days in January:
8.5 days - Average snowfall days in February:
6.2 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.7 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:
0.3 days - Average snowfall days in November:
1.5 days - Average snowfall days in December:
5.4 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
La Harpe, 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 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - 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 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 1min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 2min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 4min - 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 2min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 3min
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: 4h and 6min).
Average sunshine days
La Harpe, IL
- Average sunshine days in January:
19.7 days - Average sunshine days in February:
17.6 days - Average sunshine days in March:
15.5 days - Average sunshine days in April:
15.1 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
14.4 days - Average sunshine days in August:
17.2 days - Average sunshine days in September:
18.4 days - Average sunshine days in October:
19.5 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
20 days
The month with the most sunshine days is December (20 days).
The months with the least sunshine days are May and June (11.8 days).
Average UV index
La Harpe, IL
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
La Harpe, IL
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility
La Harpe, IL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
La Harpe, Illinois, USA
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