Expand
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 Ancona, Illinois, with temperature in the range of an average low of 17.8°F (-7.9°C) and an average high of 29.5°F (-1.4°C). Temperature records mark January as the coldest month, with highs averaging 29.5°F (-1.4°C) and lows at 17.8°F (-7.9°C). Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Ancona, Illinois, with an average temperature fluctuating between 20.8°F (-6.2°C) and 33.4°F (0.8°C). The dawn of February sees an average high-temperature of a cold 33.4°F (0.8°C), subtly contrasting with January's 29.5°F (-1.4°C). Weather in February »
Weather in March
March, the first month of the spring in Ancona, is a chilly month, with an average temperature varying between 47.5°F (8.6°C) and 32.7°F (0.4°C). Ancona experiences a temperature shift with the start of March, with average high-temperatures moving from an icy 33.4°F (0.8°C) in February to a frosty 47.5°F (8.6°C). Weather in March »
Weather in April
April in Ancona, Illinois, is a mild spring month, with an average temperature fluctuating between 42.8°F (6°C) and 59.4°F (15.2°C). Ancona in April experiences an increase in the average high-temperature, moving from March's frosty 47.5°F (8.6°C) to a mild 59.4°F (15.2°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Ancona, Illinois, with temperature in the range of an average low of 54°F (12.2°C) and an average high of 71.1°F (21.7°C). With the onset of May, Ancona experiences a temperature shift, with the average high-temperature moving from a refreshing 59.4°F (15.2°C) in April to an agreeable 71.1°F (21.7°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Ancona, Illinois, with an average temperature varying between 61.9°F (16.6°C) and 78.8°F (26°C). June's onset brings a subtle temperature rise, moving from a pleasant 71.1°F (21.7°C) in May to a warm 78.8°F (26°C). Weather in June »
Weather in July
July, like June, in Ancona, Illinois, is a moderately hot summer month, with an average temperature varying between 64.4°F (18°C) and 81°F (27.2°C). In Ancona, Illinois, the average temperatures in July are the highest, with a peak at 81°F (27.2°C) and a low of 64.4°F (18°C). During July, the heat index is evaluated at a tropical 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Ancona, Illinois, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 79.7°F (26.5°C). August is marked by an average high-temperature of a still warm 79.7°F (26.5°C), almost identical to the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Ancona, Illinois, with an average temperature varying between 56.5°F (13.6°C) and 75°F (23.9°C). Ancona registers an average high-temperature of a still warm 75°F (23.9°C) at the commencement of September, closely related to the preceding month. Weather in September »
Weather in October
October, like September, in Ancona, Illinois, is another comfortable autumn month, with an average temperature fluctuating between 61.7°F (16.5°C) and 46°F (7.8°C). In October, the average high-temperature decreases from a moderately hot 75°F (23.9°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 Ancona, is another chilly month, with an average temperature ranging between min 34°F (1.1°C) and max 47.3°F (8.5°C). As Ancona transitions into November, a noticeable drop in the average high-temperature is observed, falling from an enjoyable 61.7°F (16.5°C) in October to a frosty 47.3°F (8.5°C). Weather in November »
Weather in December
December, the first month of the winter in Ancona, is still a cold month, with an average temperature fluctuating between 25.5°F (-3.6°C) and 35.6°F (2°C). As December commences, the average high-temperature shows a reduction, transitioning from a chilly 47.3°F (8.5°C) in November to a wintry 35.6°F (2°C). Weather in December »
Updated: Jul 7, 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?
In Ancona, the average lowest temperatures are observed in January, with a high of 29.5°F (-1.4°C) and a low of 17.8°F (-7.9°C).
How much does it rain?
In Ancona, during the entire year, the rain falls for 145 days and collects up to 25.08" (637mm) of precipitation.
When does it snow?
Months with snowfall are January through April, October through December.
How much does it snow?
Throughout the year, there are 37.9 snowfall days, and 12.91" (328mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 3.8h of sunshine.
When is the lowest UV index?
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Ancona.
When does it snow the most?
The month with the most snowfall in Ancona is February, when snow falls for 8.8 days and typically aggregates up to 3.27" (83mm) of snow.
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 wettest month?
May is the month with the most rainfall. Rain falls for 17.1 days and accumulates 3.39" (86mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
When are the longest days?
June has the longest days of the year, with an average of 15h and 6min of daylight.
What month has the most sunshine?
June has the most sunshine of the year, with an average of 9.9h of sunshine.
What are the months with the highest UV index?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What month is the hottest?
July tends to be the warmest month, with temperatures averaging a daily high of 81°F (27.2°C) and a low of 64.4°F (18°C).
What is the most humid month?
The most humid month is July, with an average relative humidity of 85%.
What is the least humid month?
October is the least humid month, with an average relative humidity of 72%.
What is the driest month?
December is the month with the least rainfall. Rain falls for 6.9 days and accumulates 1.18" (30mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 9h and 18min of daylight.
Average temperature
Ancona, IL
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure
Ancona, 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:
29.96"Hg - Average pressure in June:
29.92"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:
30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Ancona, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10mph - 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:
6.2mph - Average wind speed in September:
7.4mph - Average wind speed in October:
9.2mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.7mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Ancona, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Ancona, IL
- Average rainfall in January:
1.38" - Average rainfall in February:
1.3" - Average rainfall in March:
1.65" - Average rainfall in April:
3.11" - Average rainfall in May:
3.39" - Average rainfall in June:
2.56"
- Average rainfall in July:
2.72" - Average rainfall in August:
2.28" - Average rainfall in September:
1.85" - Average rainfall in October:
2.36" - Average rainfall in November:
1.3" - Average rainfall in December:
1.18"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is December (1.18").
Average rainfall days
Ancona, IL
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
11.9 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
16.8 days
- Average rainfall days in July:
18.1 days - Average rainfall days in August:
16.4 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
12 days - Average rainfall days in November:
8 days - Average rainfall days in December:
6.9 days
The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall
Ancona, IL
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Ancona, IL
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
8.8 days - Average snowfall days in March:
5.1 days - Average snowfall days in April:
1.6 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:
2.5 days - Average snowfall days in December:
7.8 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Ancona, 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 2min - Average sunshine in April:
7h and 5min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
9h and 4min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Ancona, IL
- Average sunshine days in January:
14.7 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
11.9 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
9.2 days - Average sunshine days in August:
11.1 days - Average sunshine days in September:
15.9 days - Average sunshine days in October:
17 days - Average sunshine days in November:
18.5 days - Average sunshine days in December:
17.9 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (9.2 days).
Average UV index
Ancona, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Ancona, 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
Ancona, 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).
Ancona, Illinois, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location