Climate and monthly weather forecastHuntsville, IL
Climate and monthly weather forecast
Weather in January
January, like December, in Huntsville, Illinois, is a wintry winter month, with an average temperature fluctuating between 20.3°F (-6.5°C) and 32.7°F (0.4°C). Huntsville's January weather, with an average high temperature of 32.7°F (0.4°C) and an average low temperature of 20.3°F (-6.5°C), tends to be the coldest of the year. Weather in January »Weather in February
February, the last month of the winter in Huntsville, is also an icy month, with an average temperature varying between 24.3°F (-4.3°C) and 37.9°F (3.3°C). The shift from January to February is characterized by an average high-temperature of a still wintry 37.9°F (3.3°C), not significantly different from the 32.7°F (0.4°C) of January. Weather in February »Weather in March
March, the first month of the spring in Huntsville, is a cool month, with an average temperature fluctuating between 50.9°F (10.5°C) and 35.2°F (1.8°C). Huntsville's transition into March sees a rise in the average high-temperature, advancing from a wintry 37.9°F (3.3°C) in February to a cool 50.9°F (10.5°C). Weather in March »Weather in April
April is an enjoyable spring month in Huntsville, Illinois, with temperature in the range of an average low of 45.3°F (7.4°C) and an average high of 62.6°F (17°C). With the onset of April, the average high-temperature slightly shifts from March's cool 50.9°F (10.5°C) to a refreshing 62.6°F (17°C). Weather in April »Weather in May
May, the last month of the spring in Huntsville, is an agreeable month, with an average temperature fluctuating between 72°F (22.2°C) and 55.6°F (13.1°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's enjoyable 62.6°F (17°C) to an agreeable 72°F (22.2°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Huntsville, Illinois, with an average temperature varying between 64°F (17.8°C) and 81°F (27.2°C). With the onset of June, the average high-temperature slightly shifts from May's pleasant 72°F (22.2°C) to a warm 81°F (27.2°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Huntsville, Illinois, with an average temperature ranging between min 66.6°F (19.2°C) and max 83.7°F (28.7°C). Huntsville's July weather, marked by an average high temperature of 83.7°F (28.7°C) and an average low temperature of 66.6°F (19.2°C), is the warmest in the year. For most parts of July, the heat index is estimated at a hot 93.2°F (34°C). Weather in July »Weather in August
August, the last month of the summer in Huntsville, is another warm month, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 64.4°F (18°C). As Huntsville welcomes August, the average high-temperature records at a still moderately hot 82.9°F (28.3°C), marking an insignificant deviation from the prior month. Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Huntsville, Illinois, with an average temperature fluctuating between 58.1°F (14.5°C) and 77.7°F (25.4°C). The start of September marks an average high-temperature of a still moderately hot 77.7°F (25.4°C), hardly distinguishable from the conditions in August. Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Huntsville, Illinois, with an average temperature fluctuating between 46.8°F (8.2°C) and 63.9°F (17.7°C). Onset of October comes with a temperature decline, the average high falling from a moderately hot 77.7°F (25.4°C) in September to a comfortable 63.9°F (17.7°C). Weather in October »Weather in November
November, the last month of the autumn in Huntsville, is another cool month, with an average temperature varying between 50°F (10°C) and 35.6°F (2°C). November shows a mild decline in the average high-temperature, falling from October's enjoyable 63.9°F (17.7°C) to a cool 50°F (10°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Huntsville, Illinois, with an average temperature varying between 26.8°F (-2.9°C) and 38.5°F (3.6°C). December indicates a shift in the average high-temperature, from November's fresh 50°F (10°C) to an icy 38.5°F (3.6°C). Weather in December »Updated: Jul 11, 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
The coldest time of the year is January, with temperatures averaging a high of 32.7°F (0.4°C) and a low of 20.3°F (-6.5°C).
January is the month with the least rainfall. Rain falls for 5.3 days and accumulates 0.98" (25mm) of precipitation.
Throughout the year, there are 132 rainfall days, and 22.17" (563mm) of precipitation is accumulated.
Months with snowfall are January through April, November and December.
January is the month with the most snowfall. Snow falls for 7.8 days and accumulates 3.19" (81mm) of snow.
Throughout the year, there are 23.8 snowfall days, and 8.5" (216mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 4.3h of sunshine.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
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.
The month with the most rainfall is May, when the rain falls for 16.9 days and typically aggregates up to 3.23" (82mm) of precipitation.
In Huntsville, snow does not fall in May through October.
With an average of 15h and 0min of daylight, June has the longest days of the year.
The months with the most sunshine are June and July, with an average of 10.2h of sunshine.
June through August, with an average maximum UV index of 6, are months with the highest UV index.
July, known for its average high temperature of 83.7°F (28.7°C) and an average low temperature of 66.6°F (19.2°C), is the warmest month.
The most humid month is July, with an average relative humidity of 82%.
October is the least humid month, with an average relative humidity of 71%.
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Huntsville, IL
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.7°F).
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure
Huntsville, 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:
29.91"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:
30.11"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Huntsville, IL
- Average wind speed in January:
10.2mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6.4mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.7mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity
Huntsville, IL
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Huntsville, IL
- Average rainfall in January:
0.98" - Average rainfall in February:
1.06" - Average rainfall in March:
1.85" - Average rainfall in April:
2.44" - Average rainfall in May:
3.23" - Average rainfall in June:
2.48"
- Average rainfall in July:
1.81" - Average rainfall in August:
1.89" - Average rainfall in September:
2.2" - Average rainfall in October:
1.69" - Average rainfall in November:
1.46" - Average rainfall in December:
1.06"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days
Huntsville, IL
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
16.9 days - Average rainfall days in June:
15 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
10.2 days - Average rainfall days in October:
10.4 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
6.4 days
The month with the highest number of rainy days is May (16.9 days).
The months with the least rainy days are January and February (5.3 days).
Average snowfall
Huntsville, IL
The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Huntsville, IL
- Average snowfall days in January:
7.8 days - Average snowfall days in February:
5.7 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
0.8 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:
0.1 days - Average snowfall days in November:
1.4 days - Average snowfall days in December:
4.7 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Huntsville, IL
- 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:
10h and 0min - Average daylight in December:
9h and 24min
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 24min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 24min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 18min - Average sunshine in December:
4h and 36min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Huntsville, IL
- Average sunshine days in January:
20 days - Average sunshine days in February:
17.2 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
12.2 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
16.3 days - Average sunshine days in September:
18.2 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
19.4 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is May (11.4 days).
Average UV index
Huntsville, 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
Huntsville, IL
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July, August and September (Cloud cover 30).
Average visibility
Huntsville, 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).
