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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, in Marissa, Illinois, is another cold winter month, with an average temperature fluctuating between 25.2°F (-3.8°C) and 38.3°F (3.5°C). In Marissa, January is the month with the lowest recorded average temperatures, measuring a high of 38.3°F (3.5°C) and a low of 25.2°F (-3.8°C). Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Marissa, Illinois, with an average temperature varying between 43.3°F (6.3°C) and 28.8°F (-1.8°C). February commences with an average high-temperature of a chilly 43.3°F (6.3°C), showing little deviation from January's 38.3°F (3.5°C). Weather in February »
Weather in March
March, the first month of the spring in Marissa, is a fresh month, with an average temperature varying between 54.5°F (12.5°C) and 38.3°F (3.5°C). A shift in the average high-temperature is noticeable in March, changing from a frosty 43.3°F (6.3°C) in February to a fresh 54.5°F (12.5°C). Weather in March »
Weather in April
April is a comfortable spring month in Marissa, Illinois, with an average temperature varying between 65.7°F (18.7°C) and 47.8°F (8.8°C). April's arrival coincides with a rise in the average high-temperature, moving from March's fresh 54.5°F (12.5°C) to a refreshing 65.7°F (18.7°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Marissa, Illinois, with an average temperature ranging between max 75°F (23.9°C) and min 57.7°F (14.3°C). The shift from April to May sees an increase in the average high-temperature, transitioning from a refreshing 65.7°F (18.7°C) to a moderately hot 75°F (23.9°C). Weather in May »
Weather in June
June, the first month of the summer in Marissa, is also a moderately hot month, with an average temperature varying between 66.4°F (19.1°C) and 84.6°F (29.2°C). June comes with an increase, with the average high-temperature moving from a warm 75°F (23.9°C) in May to a still moderately hot 84.6°F (29.2°C). Weather in June »
Weather in July
July is a tropical summer month in Marissa, Illinois, with an average temperature fluctuating between 68.5°F (20.3°C) and 86.5°F (30.3°C). The month of July sees the highest average temperatures, reaching 86.5°F (30.3°C) at the peak and 68.5°F (20.3°C) at the low. The heat index value for July is estimated at a very hot 100.4°F (38°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Marissa, Illinois, with temperature in the range of an average high of 84.7°F (29.3°C) and an average low of 65.8°F (18.8°C). August welcomes an average high-temperature of a warm 84.7°F (29.3°C), not much different from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Marissa, is still a warm month, with an average temperature varying between 79.3°F (26.3°C) and 60.1°F (15.6°C). During the shift to September, a minor reduction in average high-temperature is observed, shifting from a warm 84.7°F (29.3°C) in August to a still moderately hot 79.3°F (26.3°C). Weather in September »
Weather in October
October, like September, in Marissa, Illinois, is another refreshing autumn month, with an average temperature fluctuating between 49.1°F (9.5°C) and 66.7°F (19.3°C). The onset of October results in a decrease in the average high-temperature, receding from a moderately hot 79.3°F (26.3°C) in September to a comfortable 66.7°F (19.3°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Marissa, Illinois, with an average temperature varying between 38.3°F (3.5°C) and 53.6°F (12°C). The shift from October to November involves a decrease in the average high-temperature, dropping from a refreshing 66.7°F (19.3°C) to a cool 53.6°F (12°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Marissa, Illinois, with an average temperature varying between 31.1°F (-0.5°C) and 43.3°F (6.3°C). The arrival of December signals a shift in temperature, down from a fresh 53.6°F (12°C) in November to a chilly 43.3°F (6.3°C). Weather in December »
Updated: Aug 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 month is the coldest?
January is the month when Marissa experiences its coldest temperatures, averaging a high of 38.3°F (3.5°C) and a low of 25.2°F (-3.8°C).
How much does it rain?
In Marissa, during the entire year, the rain falls for 129.6 days and collects up to 19.09" (485mm) of precipitation.
When does it snow?
Months with snowfall are January through March, September through December.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 5.6 days and typically aggregates up to 1.06" (27mm) of snow.
How much does it snow?
Throughout the year, there are 16.2 snowfall days, and 3.19" (81mm) of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine is January, with an average of 4.7h of sunshine.
When is the lowest UV index?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
What is the driest month in Marissa?
February is the month with the least rainfall. Rain falls for 7.4 days and accumulates 0.83" (21mm) of precipitation.
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.
When it does not snow?
April through August are months without snowfall in Marissa.
What is the most humid month?
The most humid month is May, with an average relative humidity of 79%.
What is the rainiest month?
May is the month with the most rainfall. Rain falls for 14.8 days and accumulates 2.48" (63mm) of precipitation.
What is the month with the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days?
With an average of 14h and 48min of daylight, June has the longest days of the year in Marissa.
What month has the most sunshine?
The month with the most sunshine in Marissa is June, with an average of 10.6h of sunshine.
What are the warmest months?
July, recognised by an average high temperature of 86.5°F (30.3°C) and a low of 68.5°F (20.3°C), is Marissa's warmest month.
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?
The month with the shortest days is December, with an average of 9h and 36min of daylight.
Average temperature
Marissa, IL
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.3°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure
Marissa, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Marissa, IL
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.2mph - Average wind speed in April:
9mph - Average wind speed in May:
7.5mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.6mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6mph - Average wind speed in October:
7.9mph - Average wind speed in November:
8.5mph - Average wind speed in December:
8.7mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity
Marissa, IL
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Marissa, IL
- Average rainfall in January:
1.18" - Average rainfall in February:
0.83" - Average rainfall in March:
1.3" - Average rainfall in April:
2.05" - Average rainfall in May:
2.48" - Average rainfall in June:
2.13"
- Average rainfall in July:
2.13" - Average rainfall in August:
2.05" - Average rainfall in September:
1.1" - Average rainfall in October:
1.65" - Average rainfall in November:
1.02" - Average rainfall in December:
1.18"
The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days
Marissa, IL
- Average rainfall days in January:
6.5 days - Average rainfall days in February:
7.4 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
14.8 days - Average rainfall days in June:
13.3 days
- Average rainfall days in July:
15.1 days - Average rainfall days in August:
12.5 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
9.8 days - Average rainfall days in November:
7.7 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is July (15.1 days).
The months with the least rainy days are January and December (6.5 days).
Average snowfall
Marissa, IL
The month with the highest snowfall is January (1.06").
The months with the least snowfall are April, May, June, July and August (0").
Average snowfall days
Marissa, IL
- Average snowfall days in January:
5.6 days - Average snowfall days in February:
4.7 days - Average snowfall days in March:
1.4 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:
0.1 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
0.9 days - Average snowfall days in December:
3.1 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Marissa, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - 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 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 4min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days
Marissa, IL
- Average sunshine days in January:
20.8 days - Average sunshine days in February:
16.9 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
16 days - Average sunshine days in May:
14.6 days - Average sunshine days in June:
14.2 days
- Average sunshine days in July:
13.7 days - Average sunshine days in August:
15.7 days - Average sunshine days in September:
16.8 days - Average sunshine days in October:
20.2 days - Average sunshine days in November:
20.2 days - Average sunshine days in December:
21.7 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is July (13.7 days).
Average UV index
Marissa, IL
The months with the highest UV index are May, 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
Marissa, IL
The months with the most cloud cover are January and February (Cloud cover 49).
The months with the least cloud cover are June and August (Cloud cover 27).
Average visibility
Marissa, 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).
Marissa, Illinois, USA
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