Climate and monthly weather forecastCoffeen, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, is an icy winter month in Coffeen, Illinois, with an average temperature ranging between max 35.4°F (1.9°C) and min 22.6°F (-5.2°C). The coldest month is January, with an average high-temperature of 35.4°F (1.9°C) and an average low-temperature of 22.6°F (-5.2°C). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Coffeen, Illinois, with temperature in the range of an average high of 39.7°F (4.3°C) and an average low of 26.4°F (-3.1°C). Coffeen's February showcases an average high-temperature of a still cold 39.7°F (4.3°C), hardly distinct from January's 35.4°F (1.9°C). Weather in February »Weather in March
March, the first month of the spring in Coffeen, is a fresh month, with an average temperature ranging between min 36.5°F (2.5°C) and max 52.3°F (11.3°C). An increase in the average high-temperature marks March, moving from February's wintry 39.7°F (4.3°C) to a fresh 52.3°F (11.3°C). Weather in March »Weather in April
April is a comfortable spring month in Coffeen, Illinois, with an average temperature ranging between max 63.7°F (17.6°C) and min 46.6°F (8.1°C). The shift from March to April sees an increase in the average high-temperature, transitioning from a cool 52.3°F (11.3°C) to an enjoyable 63.7°F (17.6°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Coffeen, Illinois, with an average temperature ranging between min 56.8°F (13.8°C) and max 73.6°F (23.1°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's enjoyable 63.7°F (17.6°C) to a warm 73.6°F (23.1°C). Weather in May »Weather in June
The first month of the summer, June, is still a warm month in Coffeen, Illinois, with an average temperature varying between 81.9°F (27.7°C) and 65.5°F (18.6°C). Coffeen's transition into June is marked by a minor temperature shift, moving from a warm 73.6°F (23.1°C) in May to a still moderately hot 81.9°F (27.7°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Coffeen, Illinois, with an average temperature ranging between min 67.1°F (19.5°C) and max 83.8°F (28.8°C). The warmest month is July, with an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 67.1°F (19.5°C). July's mean heat index is computed to be a fiery hot 95°F (35°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Coffeen, Illinois, with an average temperature varying between 82.6°F (28.1°C) and 64.9°F (18.3°C). The onset of August notes an average high-temperature of a still warm 82.6°F (28.1°C), subtly shifted from July's 83.8°F (28.8°C). Weather in August »Weather in September
September, the first month of the autumn in Coffeen, is also a moderately hot month, with an average temperature fluctuating between 59.2°F (15.1°C) and 77.7°F (25.4°C). The commencement of September brings an average high-temperature of a still warm 77.7°F (25.4°C), marking an inconsequential divergence from August. Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Coffeen, Illinois, with an average temperature varying between 64.8°F (18.2°C) and 48.4°F (9.1°C). The beginning of October involves a decrease in the average high-temperature, transitioning from a moderately hot 77.7°F (25.4°C) in September to an enjoyable 64.8°F (18.2°C). Weather in October »Weather in November
November, the last month of the autumn in Coffeen, is another cool month, with an average temperature ranging between min 36.9°F (2.7°C) and max 51.4°F (10.8°C). In November, the average high-temperature goes from a comfortable 64.8°F (18.2°C) in October to a cool 51.4°F (10.8°C). Weather in November »Weather in December
December, the first month of the winter in Coffeen, is also an icy month, with an average temperature ranging between max 40.3°F (4.6°C) and min 28.9°F (-1.7°C). December suggests a modest reduction in the average high-temperature, shifting from a cool 51.4°F (10.8°C) in November to a wintry 40.3°F (4.6°C). Weather in December »Updated: Jun 27, 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
January tends to be the coldest month, with temperatures averaging a daily high of 35.4°F (1.9°C) and a low of 22.6°F (-5.2°C).
Throughout the year, in Coffeen, there are 138.5 rainfall days, and 24.33" (618mm) of precipitation is accumulated.
Months with snowfall are January through March, November and December.
In Coffeen, during the entire year, snow falls for 20.6 days and aggregates up to 6.3" (160mm) of snow.
January has the least sunshine of the year, with an average of 4.3h of sunshine.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the least rainfall is February, when the rain falls for 7.4 days and typically collects 1.34" (34mm) of precipitation.
The month with the most snowfall is February, when snow falls for 5.8 days and typically aggregates up to 1.81" (46mm) of snow.
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.
April through October are months without snowfall.
The month with the most rainfall is June, when the rain falls for 14.6 days and typically aggregates up to 3.35" (85mm) of precipitation.
The month with the longest days is June, with an average of 14h and 54min of daylight.
June has the most sunshine of the year, with an average of 10.4h of sunshine.
June through August, with an average maximum UV index of 6, are months with the highest UV index.
July is the warmest month, with an average high-temperature of 83.8°F (28.8°C) and an average low-temperature of 67.1°F (19.5°C).
The most humid month in Coffeen, Illinois, is July, with an average relative humidity of 82%.
The least humid month in Coffeen is October, with an average relative humidity of 71%.
With an average of 9h and 30min of daylight, December has the shortest days of the year.
Average temperature
Coffeen, IL
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure
Coffeen, IL
- Average pressure in January:
30.16"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 (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Coffeen, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.8mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.1mph - Average wind speed in June:
7mph
- Average wind speed in July:
5.9mph - Average wind speed in August:
6mph - Average wind speed in September:
6.6mph - Average wind speed in October:
8.7mph - Average wind speed in November:
9.4mph - Average wind speed in December:
9.4mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity
Coffeen, IL
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Coffeen, IL
- Average rainfall in January:
1.46" - Average rainfall in February:
1.34" - Average rainfall in March:
1.89" - Average rainfall in April:
2.72" - Average rainfall in May:
2.76" - Average rainfall in June:
3.35"
The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days
Coffeen, IL
- Average rainfall days in January:
7 days - Average rainfall days in February:
7.4 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
9.7 days - Average rainfall days in November:
9.1 days - Average rainfall days in December:
7.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (7 days).
Average snowfall
Coffeen, IL
The month with the highest snowfall is February (1.81").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Coffeen, IL
- Average snowfall days in January:
6.2 days - Average snowfall days in February:
5.8 days - Average snowfall days in March:
2.4 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 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.3 days - Average snowfall days in December:
4.5 days
The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Coffeen, IL
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 30min
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 30min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 12min - Average sunshine in May:
9h and 12min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 18min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 48min
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 18min).
Average sunshine days
Coffeen, IL
- Average sunshine days in January:
19.3 days - Average sunshine days in February:
16.2 days - Average sunshine days in March:
16.1 days - Average sunshine days in April:
14 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
13.5 days - Average sunshine days in August:
15.5 days - Average sunshine days in September:
15.7 days - Average sunshine days in October:
19.8 days - Average sunshine days in November:
19 days - Average sunshine days in December:
19.2 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.8 days).
Average UV index
Coffeen, 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
Coffeen, IL
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility
Coffeen, IL
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
