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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, the same as December, is another cold winter month in Mattoon, Kentucky, with temperature in the range of an average low of 27.5°F (-2.5°C) and an average high of 40.5°F (4.7°C). January tends to be the coldest month, with temperatures averaging a daily high of 40.5°F (4.7°C) and a low of 27.5°F (-2.5°C). Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Mattoon, Kentucky, with an average temperature fluctuating between 45.5°F (7.5°C) and 31.3°F (-0.4°C). Mattoon starts February with an average high-temperature of a frosty 45.5°F (7.5°C), hinting at a minimal fluctuation from January. Weather in February »
Weather in March
The first month of the spring, March, is a mild month in Mattoon, Kentucky, with an average temperature fluctuating between 40.3°F (4.6°C) and 55.8°F (13.2°C). The shift into March is marked by a rise in the average high-temperature, moving from February's frosty 45.5°F (7.5°C) to a refreshing 55.8°F (13.2°C). Weather in March »
Weather in April
April is a comfortable spring month in Mattoon, Kentucky, with an average temperature varying between 48.9°F (9.4°C) and 66.7°F (19.3°C). April's onset witnesses a shift in the average high-temperature, moving from a mild 55.8°F (13.2°C) in March to a comfortable 66.7°F (19.3°C). Weather in April »
Weather in May
May, the last month of the spring in Mattoon, is a warm month, with an average temperature ranging between min 58.5°F (14.7°C) and max 75.6°F (24.2°C). May brings a slight increase in the average high-temperature, progressing from a comfortable 66.7°F (19.3°C) in April to a warm 75.6°F (24.2°C). Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Mattoon, Kentucky, with an average temperature ranging between min 66°F (18.9°C) and max 83.8°F (28.8°C). As May transitions into June, a subtle temperature shift is observed, with average highs adjusting from a warm 75.6°F (24.2°C) to a still moderately hot 83.8°F (28.8°C). Weather in June »
Weather in July
July is a tropical summer month in Mattoon, Kentucky, with an average temperature ranging between min 68.5°F (20.3°C) and max 86.5°F (30.3°C). The warmest period tends to be July, when average temperatures fluctuate between a high of 86.5°F (30.3°C) and a low of 68.5°F (20.3°C). July's mean heat index is estimated at a fiery hot 100.4°F (38°C). Weather in July »
Weather in August
August, the last month of the summer in Mattoon, is also a moderately hot month, with an average temperature ranging between min 66.7°F (19.3°C) and max 85.3°F (29.6°C). Mattoon experiences a subtle adjustment in high-temperatures to a moderately hot 85.3°F (29.6°C) with the onset of August, maintaining near parity with July's 86.5°F (30.3°C). Weather in August »
Weather in September
September, the first month of the autumn in Mattoon, is also a moderately hot month, with temperature in the range of an average low of 61.3°F (16.3°C) and an average high of 80.4°F (26.9°C). Mattoon's average high-temperature in September is a still moderately hot 80.4°F (26.9°C), marking an insignificant difference from the 85.3°F (29.6°C) of August. Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Mattoon, Kentucky, with an average temperature fluctuating between 50°F (10°C) and 68°F (20°C). The arrival of October corresponds with a reduction in the average high-temperature, down from September's moderately hot 80.4°F (26.9°C) to a pleasant 68°F (20°C). Weather in October »
Weather in November
November, the last month of the autumn in Mattoon, is another cool month, with an average temperature ranging between min 39.7°F (4.3°C) and max 54.5°F (12.5°C). November comes with a decrease in the average high-temperature, falling from an agreeable 68°F (20°C) in October to a cool 54.5°F (12.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a frosty month in Mattoon, Kentucky, with an average temperature ranging between min 33.4°F (0.8°C) and max 45.5°F (7.5°C). The onset of December is marked by a decrease in temperature, transitioning from a fresh 54.5°F (12.5°C) in November to a chilly 45.5°F (7.5°C). Weather in December »
[Resources]Frequently asked questions
What are the coldest months in Mattoon?
Mattoon experiences its average lowest temperatures in January, reaching a peak of 40.5°F (4.7°C) and a minimum of 27.5°F (-2.5°C).
How much does it rain in Mattoon?
In Mattoon, Kentucky, during the entire year, the rain falls for 148.8 days and collects up to 27.05" (687mm) of precipitation.
When does it snow in Mattoon?
January through April, November and December are months with snowfall in Mattoon.
How much does it snow in Mattoon?
In Mattoon, during the entire year, snow falls for 15 days and aggregates up to 4.8" (122mm) of snow.
What are the months with the least sunshine in Mattoon?
The months with the least sunshine in Mattoon, Kentucky, are January and February, with an average of 4.6h of sunshine.
What are the months with the lowest UV index in Mattoon?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Mattoon.
What is the wettest month in Mattoon?
February is the month with the most rainfall. Rain falls for 9.9 days and accumulates 3.03" (77mm) of precipitation.
When does it snow the most in Mattoon?
February is the month with the most snowfall in Mattoon, Kentucky. Snow falls for 4.1 days and accumulates 1.57" (40mm) of snow.
When is Daylight Saving Time (DST) in Mattoon?
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 most humid month in Mattoon?
With an average relative humidity of 80%, May is the most humid month in Mattoon.
When it does not snow in Mattoon?
May through October are months without snowfall in Mattoon, Kentucky.
What is the month with the highest UV index in Mattoon?
The months with the highest UV index are May through August, with an average maximum UV index of 6.
When are the longest days in Mattoon?
With an average of 14h and 42min of daylight, June has the longest days of the year in Mattoon.
What is the month with the most sunshine in Mattoon?
June and July, with an average of 10.5h of sunshine, are months with the most sunshine.
What is the warmest month in Mattoon?
July, recording an average high temperature of 86.5°F (30.3°C) and a low temperature of 68.5°F (20.3°C), is Mattoon's warmest month.
What is the driest month in Mattoon?
The month with the least rainfall in Mattoon, Kentucky, is September, when the rain falls for 11.7 days and typically collects 1.3" (33mm) of precipitation.
What is the least humid month in Mattoon?
October is the least humid month in Mattoon, with an average relative humidity of 71%.
What is the month with the shortest days in Mattoon?
December has the shortest days of the year, with an average of 9h and 36min of daylight.
Average temperature
Mattoon, KY
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (40.5°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 (27.5°F).
Average pressure
Mattoon, KY
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.97"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.05"Hg - Average pressure in November:
30.15"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Mattoon, KY
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.5mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.4mph - Average wind speed in May:
7.7mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.4mph - Average wind speed in October:
8mph - Average wind speed in November:
8.6mph - Average wind speed in December:
8.8mph
The windiest month (with the highest average wind speed) is February (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity
Mattoon, KY
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Mattoon, KY
- Average rainfall in January:
1.57" - Average rainfall in February:
3.03" - Average rainfall in March:
2.6" - Average rainfall in April:
2.91" - Average rainfall in May:
2.56" - Average rainfall in June:
2.52"
- Average rainfall in July:
2.32" - Average rainfall in August:
2.24" - Average rainfall in September:
1.3" - Average rainfall in October:
1.81" - Average rainfall in November:
2.13" - Average rainfall in December:
2.05"
The wettest month (with the highest rainfall) is February (3.03").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days
Mattoon, KY
- Average rainfall days in January:
9.1 days - Average rainfall days in February:
9.9 days - Average rainfall days in March:
14.4 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
14.2 days - Average rainfall days in September:
11.7 days - Average rainfall days in October:
8.9 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
10.8 days
The months with the highest number of rainy days are May and July (16.3 days).
The month with the least rainy days is November (8.8 days).
Average snowfall
Mattoon, KY
The month with the highest snowfall is February (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Mattoon, KY
- Average snowfall days in January:
4.5 days - Average snowfall days in February:
4.1 days - Average snowfall days in March:
1.7 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:
0.1 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
3.2 days
The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Mattoon, KY
- 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 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - 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 42min).
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 4min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 4min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 3min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 5min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days
Mattoon, KY
- Average sunshine days in January:
17.7 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
15 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
12.9 days
- Average sunshine days in July:
12.1 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
20.3 days - Average sunshine days in November:
19.4 days - Average sunshine days in December:
18.2 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (12.1 days).
Average UV index
Mattoon, KY
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 and December (UV index 2).
Average cloud cover
Mattoon, KY
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 28).
Average visibility
Mattoon, KY
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).
Mattoon, Kentucky, USA
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