Climate and monthly weather forecastHennepin, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in Hennepin, Illinois, is another subzero cold winter month, with temperature in the range of an average low of 16.9°F (-8.4°C) and an average high of 28.9°F (-1.7°C). In Hennepin, the month of January is known for its lowest average temperatures, reaching a high of 28.9°F (-1.7°C) and a low of 16.9°F (-8.4°C). Weather in January »Weather in February
The last month of the winter, February, is an icy month in Hennepin, Illinois, with temperature in the range of an average low of 20.3°F (-6.5°C) and an average high of 33.4°F (0.8°C). February's weather records an average high-temperature of a wintry 33.4°F (0.8°C), showing little deviation from January. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Hennepin, Illinois, with an average temperature varying between 47.1°F (8.4°C) and 32.5°F (0.3°C). The shift from February to March brings an increase in the average high-temperature, moving from a cold 33.4°F (0.8°C) to a frosty 47.1°F (8.4°C). Weather in March »Weather in April
April is a mild spring month in Hennepin, Illinois, with an average temperature varying between 42.4°F (5.8°C) and 59°F (15°C). Hennepin's April weather brings a rise in high-temperatures, moving from a chilly 47.1°F (8.4°C) in March to a refreshing 59°F (15°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Hennepin, Illinois, with an average temperature ranging between max 71.1°F (21.7°C) and min 53.6°F (12°C). A shift in the average high-temperature is noticeable in May, changing from a moderate 59°F (15°C) in April to a pleasant 71.1°F (21.7°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Hennepin, Illinois, with an average temperature varying between 61.7°F (16.5°C) and 78.6°F (25.9°C). Hennepin in June observes a minor temperature shift, with average high-temperatures adjusting from a pleasant 71.1°F (21.7°C) in May to a moderately hot 78.6°F (25.9°C). Weather in June »Weather in July
July, like June, in Hennepin, Illinois, is a moderately hot summer month, with temperature in the range of an average high of 80.8°F (27.1°C) and an average low of 64.2°F (17.9°C). July stands out as Hennepin's warmest month, with temperatures ranging between an average high of 80.8°F (27.1°C) and a low of 64.2°F (17.9°C). July's average heat index is evaluated at a tropical 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Hennepin, Illinois, with temperature in the range of an average high of 79.7°F (26.5°C) and an average low of 61.9°F (16.6°C). August's onset brings an average high-temperature of a still warm 79.7°F (26.5°C), showing a minute difference from July's 80.8°F (27.1°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Hennepin, Illinois, with an average temperature ranging between min 56.1°F (13.4°C) and max 74.7°F (23.7°C). With the onset of September, a modest change to a still warm 74.7°F (23.7°C) from August's 79.7°F (26.5°C) is noted in high-temperature. Weather in September »Weather in October
October, like September, in Hennepin, Illinois, is another comfortable autumn month, with an average temperature varying between 45.7°F (7.6°C) and 61.7°F (16.5°C). Hennepin's progression into October involves a drop in the average high-temperature, receding from a warm 74.7°F (23.7°C) in September to a refreshing 61.7°F (16.5°C). Weather in October »Weather in November
November, the last month of the autumn in Hennepin, is also a frosty month, with an average temperature ranging between max 46.8°F (8.2°C) and min 33.6°F (0.9°C). A notable decrease in the average high-temperature is observed during November, falling from an enjoyable 61.7°F (16.5°C) in October to a frosty 46.8°F (8.2°C). Weather in November »Weather in December
December, the first month of the winter in Hennepin, is still a cold month, with an average temperature fluctuating between 34.7°F (1.5°C) and 24.4°F (-4.2°C). Onset of December witnesses a reduction in the average high-temperature, falling from a chilly 46.8°F (8.2°C) in November to a wintry 34.7°F (1.5°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
January is the month when Hennepin experiences its coldest temperatures, averaging a high of 28.9°F (-1.7°C) and a low of 16.9°F (-8.4°C).
The months with the least rainfall in Hennepin are January and December Rain falls for 5.9 days and accumulates 1.61" (41mm) of rain.
In Hennepin, during the entire year, the rain falls for 152.7 days and collects up to 30.79" (782mm) of precipitation.
January through April, October through December are months with snowfall in Hennepin.
January is the month with the most snowfall. Snow falls for 11.9 days and accumulates 4.09" (104mm) of snow.
In Hennepin, Illinois, during the entire year, snow falls for 39.5 days and aggregates up to 15.31" (389mm) of snow.
With an average of 3.9h of sunshine, January has the least sunshine of the year.
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Hennepin.
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.
May is the month with the most rainfall in Hennepin, Illinois. Rain falls for 18.9 days and accumulates 4.69" (119mm) of precipitation.
In Hennepin, snow does not fall in May through September.
June has the longest days of the year in Hennepin, Illinois, with an average of 15h and 6min of daylight.
June through August, with an average of 9.8h of sunshine, are months with the most sunshine in Hennepin.
The months with the highest UV index in Hennepin, Illinois, are June through August, with an average maximum UV index of 6.
July is the warmest month of the year, registering average temperatures as high as 80.8°F (27.1°C) and as low as 64.2°F (17.9°C).
With an average relative humidity of 85%, July is the most humid month in Hennepin, Illinois.
The least humid month is October, with an average relative humidity of 72%.
December has the shortest days of the year in Hennepin, with an average of 9h and 18min of daylight.
Average temperature
Hennepin, IL
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.9°F).
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure
Hennepin, 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:
29.98"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:
30.1"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
Hennepin, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.2mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.5mph - Average wind speed in October:
9.2mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Hennepin, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Hennepin, IL
- Average rainfall in January:
1.61" - Average rainfall in February:
1.69" - Average rainfall in March:
2.2" - Average rainfall in April:
3.82" - Average rainfall in May:
4.69" - Average rainfall in June:
3.27"
The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and December (1.61").
Average rainfall days
Hennepin, IL
- Average rainfall days in January:
5.9 days - Average rainfall days in February:
6.5 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
17.1 days - Average rainfall days in May:
18.9 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
17.5 days - Average rainfall days in August:
13.9 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
13.2 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall
Hennepin, IL
The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Hennepin, IL
- Average snowfall days in January:
11.9 days - Average snowfall days in February:
9.5 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
1.4 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:
0.1 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
2.8 days - Average snowfall days in December:
8 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Hennepin, IL
- Average daylight in January:
9h and 36min - 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 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - 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 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 30min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 48min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 12min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Hennepin, IL
- Average sunshine days in January:
14 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
10.2 days - Average sunshine days in May:
10.3 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
16.2 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (10.2 days).
Average UV index
Hennepin, 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 and December (UV index 1).
Average cloud cover
Hennepin, IL
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility
Hennepin, IL
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
