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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
Climate and monthly weather forecast
Weather in January
January, like December, in Assumption, Illinois, is a wintry winter month, with an average temperature varying between 33.6°F (0.9°C) and 21.6°F (-5.8°C). With its high average temperature of 33.6°F (0.9°C) and a low of 21.6°F (-5.8°C), January is regarded as the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Assumption, Illinois, with an average temperature varying between 25.5°F (-3.6°C) and 38.8°F (3.8°C). The arrival of February coincides with an average high-temperature of a still wintry 38.8°F (3.8°C), indicating a minimal shift from January's 33.6°F (0.9°C). Weather in February »
Weather in March
March, the first month of the spring in Assumption, is a cool month, with an average temperature ranging between min 36°F (2.2°C) and max 50.9°F (10.5°C). Assumption, Illinois, experiences a temperature shift with the start of March, with average high-temperatures moving from a cold 38.8°F (3.8°C) in February to a fresh 50.9°F (10.5°C). Weather in March »
Weather in April
April in Assumption, Illinois, is a refreshing spring month, with an average temperature varying between 62.4°F (16.9°C) and 46.2°F (7.9°C). The shift into April is characterized by a rise in the average high-temperature, transitioning from March's fresh 50.9°F (10.5°C) to a refreshing 62.4°F (16.9°C). Weather in April »
Weather in May
May, the last month of the spring in Assumption, is an agreeable month, with temperature in the range of an average low of 56.7°F (13.7°C) and an average high of 72.9°F (22.7°C). May's onset brings a rise in the average high-temperature, moving from a refreshing 62.4°F (16.9°C) in April to an agreeable 72.9°F (22.7°C). Weather in May »
Weather in June
June, the first month of the summer in Assumption, is a warm month, with an average temperature varying between 81.1°F (27.3°C) and 64.4°F (18°C). June's onset is marked by a subtle temperature increase, moving from an agreeable 72.9°F (22.7°C) in May to a moderately hot 81.1°F (27.3°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Assumption, Illinois, with an average temperature varying between 66°F (18.9°C) and 82.4°F (28°C). Assumption's temperature records reveal July as the warmest month, marked by average highs of 82.4°F (28°C) and lows of 66°F (18.9°C). For most parts of July, the heat index is appraised at a tropical 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Assumption, is another warm month, with an average temperature ranging between min 64°F (17.8°C) and max 81.5°F (27.5°C). The arrival of August sees an average high-temperature of a still moderately hot 81.5°F (27.5°C), hardly diverging from July's 82.4°F (28°C). Weather in August »
Weather in September
September, the first month of the autumn in Assumption, is still a warm month, with an average temperature ranging between max 77.2°F (25.1°C) and min 58.5°F (14.7°C). Assumption's September reports an average high-temperature of a still warm 77.2°F (25.1°C), exhibiting a minor difference from August. Weather in September »
Weather in October
October, the same as September, is another refreshing autumn month in Assumption, Illinois, with an average temperature fluctuating between 48.2°F (9°C) and 64°F (17.8°C). The onset of October results in a decrease in the average high-temperature, receding from a moderately hot 77.2°F (25.1°C) in September to a comfortable 64°F (17.8°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Assumption, Illinois, with temperature in the range of an average high of 50.2°F (10.1°C) and an average low of 36.3°F (2.4°C). With November's onset, the average high-temperature recedes from October's refreshing 64°F (17.8°C) to a fresh 50.2°F (10.1°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Assumption, Illinois, with temperature in the range of an average high of 38.8°F (3.8°C) and an average low of 28.2°F (-2.1°C). During Assumption's transition into December, the average high-temperature lessens, moving from a cool 50.2°F (10.1°C) in November to a wintry 38.8°F (3.8°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
What part of the year is the coldest in Assumption?
With average temperatures fluctuating between a high of 33.6°F (0.9°C) and a low of 21.6°F (-5.8°C), January stands out as the coldest month in Assumption.
How much does it rain in Assumption?
Throughout the year, there are 139.6 rainfall days, and 24.25" (616mm) of precipitation is accumulated.
When does it snow in Assumption?
Months with snowfall are January through March, November and December.
How many days does it snow in Assumption?
In Assumption, Illinois, during the entire year, snow falls for 23.6 days and aggregates up to 8.54" (217mm) of snow.
What is the month with the least sunshine in Assumption?
January has the least sunshine of the year, with an average of 4.1h of sunshine.
When is the lowest UV index in Assumption?
The months with the lowest UV index in Assumption, Illinois, are January, February, November and December, with an average maximum UV index of 2.
What is the driest month in Assumption?
February and December are months with the least rain in Assumption, Illinois, when the rain falls for 6.9 days and typically aggregates up to 1.38" (35mm) of rain.
When does it snow the most in Assumption?
February is the month with the most snowfall. Snow falls for 6.3 days and accumulates 2.8" (71mm) of snow.
When is Daylight Saving Time (DST) in Assumption?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Assumption, 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 Assumption?
The wettest months in Assumption, Illinois, are April and May, with an average 2.91" (74mm) of rainfall.
When it does not snow in Assumption?
In Assumption, Illinois, snow does not fall in April through October.
When are the longest days in Assumption?
The month with the longest days is June, with an average of 14h and 54min of daylight.
What month has the most sunshine in Assumption?
June has the most sunshine of the year in Assumption, Illinois, with an average of 10.4h of sunshine.
What is the month with the highest UV index in Assumption?
The months with the highest UV index in Assumption are June through August, with an average maximum UV index of 6.
What is the warmest month in Assumption?
Assumption's July weather reaches an average high of 82.4°F (28°C) and an average low of 66°F (18.9°C), making it the warmest month.
What is the most humid month in Assumption?
July is the most humid month in Assumption, Illinois, with an average relative humidity of 84%.
What is the least humid month in Assumption?
The least humid month is October, with an average relative humidity of 70%.
What is the month with the shortest days in Assumption?
The month with the shortest days is December, with an average of 9h and 24min of daylight.
Average temperature
Assumption, IL
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.6°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Assumption, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"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:
30.03"Hg - Average pressure in November:
30.12"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Assumption, IL
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.6mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.1mph - Average wind speed in October:
9.3mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity
Assumption, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Assumption, IL
- Average rainfall in January:
1.5" - Average rainfall in February:
1.38" - Average rainfall in March:
2.01" - Average rainfall in April:
2.91" - Average rainfall in May:
2.91" - Average rainfall in June:
2.83"
The wettest months (with the highest rainfall) are April and May (2.91").
The driest months (with the least rainfall) are February and December (1.38").
Average rainfall days
Assumption, IL
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
6.9 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
13.9 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
10.3 days - Average rainfall days in November:
8.7 days - Average rainfall days in December:
7.7 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.9 days).
Average snowfall
Assumption, IL
The month with the highest snowfall is February (2.8").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Assumption, IL
- Average snowfall days in January:
7.6 days - Average snowfall days in February:
6.3 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
0.3 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 days - Average snowfall days in November:
1.7 days - Average snowfall days in December:
4.9 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Assumption, IL
- Average daylight in January:
9h and 5min - 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 2min - Average daylight in June:
14h and 5min
- 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:
10h and 0min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- 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:
8h and 1min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Assumption, IL
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
15.7 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
12.1 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
17.4 days - Average sunshine days in October:
19.7 days - Average sunshine days in November:
18.9 days - Average sunshine days in December:
18.3 days
The month with the most sunshine days is October (19.7 days).
The month with the least sunshine days is May (11.6 days).
Average UV index
Assumption, 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
Assumption, IL
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility
Assumption, 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).