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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, like December, is a freezing cold winter month in Morton, Illinois, with an average temperature fluctuating between 18.9°F (-7.3°C) and 31.1°F (-0.5°C). January is the coldest month, exhibiting average temperatures of 31.1°F (-0.5°C) at the peak and 18.9°F (-7.3°C) at the base. Weather in January »
Weather in February
The last month of the winter, February, is a cold month in Morton, Illinois, with temperature in the range of an average high of 35.4°F (1.9°C) and an average low of 22.5°F (-5.3°C). Morton's weather, upon February's arrival, documents an average high-temperature of a cold 35.4°F (1.9°C), nearly identical to the prior month. Weather in February »
Weather in March
March, the first month of the spring in Morton, is a frosty month, with an average temperature ranging between min 34°F (1.1°C) and max 49.3°F (9.6°C). The beginning of March signals a rise in the average high-temperature, moving from a cold 35.4°F (1.9°C) in February to a chilly 49.3°F (9.6°C). Weather in March »
Weather in April
April is a moderate spring month in Morton, Illinois, with an average temperature ranging between min 44.2°F (6.8°C) and max 60.6°F (15.9°C). April sees a rise in the average high-temperature, climbing from a chilly 49.3°F (9.6°C) in March to a refreshing 60.6°F (15.9°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Morton, Illinois, with temperature in the range of an average high of 71.8°F (22.1°C) and an average low of 55.2°F (12.9°C). Morton, Illinois, sees an increase in the average high-temperature with the arrival of May, moving from April's moderate 60.6°F (15.9°C) to a pleasant 71.8°F (22.1°C). Weather in May »
Weather in June
June, the first month of the summer in Morton, is a moderately hot month, with an average temperature fluctuating between 79.9°F (26.6°C) and 63.1°F (17.3°C). June showcases a minor temperature ascent, adjusting from May's agreeable 71.8°F (22.1°C) to a moderately hot 79.9°F (26.6°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Morton, Illinois, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 64.9°F (18.3°C). The warmest time of the year is July, with temperatures averaging a high of 81.9°F (27.7°C) and a low of 64.9°F (18.3°C). The heat index value for July is computed to be a hot 89.6°F (32°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Morton, Illinois, with temperature in the range of an average low of 63.3°F (17.4°C) and an average high of 80.8°F (27.1°C). The commencement of August records an average high-temperature of a still warm 80.8°F (27.1°C), barely varying from July's 81.9°F (27.7°C). Weather in August »
Weather in September
September, the first month of the autumn in Morton, is also a moderately hot month, with temperature in the range of an average high of 76.1°F (24.5°C) and an average low of 57.2°F (14°C). The advent of September denotes an average high-temperature of a still moderately hot 76.1°F (24.5°C), subtly different from August's 80.8°F (27.1°C). Weather in September »
Weather in October
October, like September, in Morton, Illinois, is another refreshing autumn month, with temperature in the range of an average low of 46.4°F (8°C) and an average high of 62.2°F (16.8°C). October weather is marked by a drop in the average high-temperature, falling from a warm 76.1°F (24.5°C) in September to a comfortable 62.2°F (16.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Morton, is another chilly month, with an average temperature fluctuating between 48.4°F (9.1°C) and 34.9°F (1.6°C). November shows a mild decline in the average high-temperature, falling from October's comfortable 62.2°F (16.8°C) to a chilly 48.4°F (9.1°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Morton, Illinois, with an average temperature ranging between min 26.2°F (-3.2°C) and max 36.5°F (2.5°C). With December's onset, the weather shows a temperature decrease, transitioning from a frosty 48.4°F (9.1°C) in November to an icy 36.5°F (2.5°C). Weather in December »
Updated: Jul 13, 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?
January is the coldest month, with an average high-temperature of 31.1°F (-0.5°C) and an average low-temperature of 18.9°F (-7.3°C).
How much does it rain?
In Morton, during the entire year, the rain falls for 127.2 days and collects up to 16.77" (426mm) of precipitation.
When does it snow?
January through April, November and December are months with snowfall.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 8.7 days and accumulates 2.24" (57mm) of snow.
How much does it snow?
Throughout the year, there are 27.6 snowfall days, and 6.46" (164mm) of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 3.9h 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.
What is the driest month?
February and December are months with the least rain when the rain falls for 4.8 days and typically aggregates up to 0.83" (21mm) of rain.
When is Daylight Saving Time (DST) in Morton?
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 17.2 days and accumulates 2.48" (63mm) of precipitation.
When it does not snow?
In Morton, snow does not fall in May through October.
When are the longest days?
June has the longest days of the year, with an average of 15h and 0min of daylight.
What month has the most sunshine?
June has the most sunshine of the year, with an average of 10.1h of sunshine.
What is the month 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 is the hottest time of year?
July is the warmest month, with an average high-temperature of 81.9°F (27.7°C) and an average low-temperature of 64.9°F (18.3°C).
What is the most humid month?
The most humid month is July, with an average relative humidity of 84%.
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?
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
Morton, IL
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (31.1°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure
Morton, IL
- Average pressure in January:
30.14"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:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Morton, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.6mph - Average wind speed in May:
8.9mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.3mph - Average wind speed in November:
10mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Morton, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Morton, IL
- Average rainfall in January:
0.87" - Average rainfall in February:
0.83" - Average rainfall in March:
1.26" - Average rainfall in April:
1.93" - Average rainfall in May:
2.48" - Average rainfall in June:
1.97"
- Average rainfall in July:
1.57" - Average rainfall in August:
1.26" - Average rainfall in September:
1.34" - Average rainfall in October:
1.38" - Average rainfall in November:
1.06" - Average rainfall in December:
0.83"
The wettest month (with the highest rainfall) is May (2.48").
The driest months (with the least rainfall) are February and December (0.83").
Average rainfall days
Morton, IL
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
4.8 days - Average rainfall days in March:
11 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
17.2 days - Average rainfall days in June:
14.5 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
11.9 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
6 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is February (4.8 days).
Average snowfall
Morton, IL
The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Morton, IL
- Average snowfall days in January:
8.7 days - Average snowfall days in February:
7.1 days - Average snowfall days in March:
3 days - Average snowfall days in April:
0.6 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:
0.2 days - Average snowfall days in November:
2 days - Average snowfall days in December:
6 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Morton, 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:
3h and 5min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 1min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 1min
- 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:
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: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Morton, IL
- Average sunshine days in January:
19.1 days - Average sunshine days in February:
17.7 days - Average sunshine days in March:
16.8 days - Average sunshine days in April:
15.2 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
13.2 days
- Average sunshine days in July:
13.2 days - Average sunshine days in August:
16.7 days - Average sunshine days in September:
17.8 days - Average sunshine days in October:
18.7 days - Average sunshine days in November:
19.6 days - Average sunshine days in December:
19.7 days
The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (11.4 days).
Average UV index
Morton, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Morton, IL
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility
Morton, 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).
Morton, Illinois, USA
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