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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 an icy winter month in Effingham, Illinois, with temperature in the range of an average low of 23°F (-5°C) and an average high of 35.2°F (1.8°C). January proves to be the coldest month, recording an average maximum temperature of 35.2°F (1.8°C) and a minimum temperature of 23°F (-5°C). Weather in January »
Weather in February
The last month of the winter, February, is another cold month in Effingham, Illinois, with an average temperature fluctuating between 40.3°F (4.6°C) and 26.4°F (-3.1°C). The arrival of February coincides with an average high-temperature of a still cold 40.3°F (4.6°C), indicating a minimal shift from January's 35.2°F (1.8°C). Weather in February »
Weather in March
March, the first month of the spring in Effingham, is a cool month, with temperature in the range of an average high of 52°F (11.1°C) and an average low of 36.5°F (2.5°C). March brings a temperature change, with average high-temperatures moving from February's icy 40.3°F (4.6°C) to a cool 52°F (11.1°C). Weather in March »
Weather in April
April is a comfortable spring month in Effingham, Illinois, with temperature in the range of an average low of 46.6°F (8.1°C) and an average high of 63.3°F (17.4°C). The beginning of April marks a shift in the average high-temperature, moving from March's fresh 52°F (11.1°C) to an enjoyable 63.3°F (17.4°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Effingham, Illinois, with an average temperature ranging between min 56.8°F (13.8°C) and max 73.4°F (23°C). May's onset brings a temperature rise, moving from a comfortable 63.3°F (17.4°C) in April to a warm 73.4°F (23°C). Weather in May »
Weather in June
June, the first month of the summer in Effingham, is also a moderately hot month, with temperature in the range of an average low of 65.5°F (18.6°C) and an average high of 81.7°F (27.6°C). The commencement of June sees a minor shift in the average high-temperature, moving from a warm 73.4°F (23°C) in May to a still moderately hot 81.7°F (27.6°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Effingham, Illinois, with an average temperature fluctuating between 83.3°F (28.5°C) and 66.6°F (19.2°C). The temperatures reach their highest averages in July, with highs of 83.3°F (28.5°C) and lows of 66.6°F (19.2°C). The heat index in July is computed to be a hot 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Effingham, is also a moderately hot month, with an average temperature fluctuating between 64.8°F (18.2°C) and 82°F (27.8°C). August's onset records a minor alteration in the average high-temperature to a still warm 82°F (27.8°C) from July's 83.3°F (28.5°C). Weather in August »
Weather in September
September, the first month of the autumn in Effingham, is also a moderately hot month, with an average temperature ranging between max 77.4°F (25.2°C) and min 59.4°F (15.2°C). Effingham's average high-temperature in September sits at a still warm 77.4°F (25.2°C), showing little difference from the previous month. Weather in September »
Weather in October
October, like September, in Effingham, Illinois, is another enjoyable autumn month, with temperature in the range of an average low of 48.4°F (9.1°C) and an average high of 64.9°F (18.3°C). October suggests a modest reduction in the average high-temperature, shifting from a warm 77.4°F (25.2°C) in September to a comfortable 64.9°F (18.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Effingham, is also a fresh month, with an average temperature varying between 51.1°F (10.6°C) and 36.9°F (2.7°C). November implies a gentle temperature shift, with average high-temperatures reducing from October's enjoyable 64.9°F (18.3°C) to a cool 51.1°F (10.6°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Effingham, Illinois, with an average temperature varying between 40.3°F (4.6°C) and 29.1°F (-1.6°C). The arrival of December corresponds with a reduction in the average high-temperature, down from November's fresh 51.1°F (10.6°C) to an icy 40.3°F (4.6°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 month is the coldest in Effingham?
Effingham, Illinois, experiences its lowest temperatures in January, with an average peak of 35.2°F (1.8°C) and a low of 23°F (-5°C).
How much does it rain in Effingham?
Throughout the year, there are 135.9 rainfall days, and 21.89" (556mm) of precipitation is accumulated.
When does it snow in Effingham?
Months with snowfall in Effingham are January through April, November and December.
What is the snowiest month in Effingham?
January is the month with the most snowfall in Effingham, Illinois. Snow falls for 4.8 days and accumulates 1.18" (30mm) of snow.
How many days does it snow in Effingham?
In Effingham, Illinois, during the entire year, snow falls for 17.7 days and aggregates up to 4.17" (106mm) of snow.
What is the month with the least sunshine in Effingham?
January has the least sunshine of the year in Effingham, Illinois, with an average of 4.3h of sunshine.
What are the months with the lowest UV index in Effingham?
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 Effingham?
The month with the least rainfall in Effingham, Illinois, is February, when the rain falls for 7.6 days and typically collects 1.06" (27mm) of precipitation.
When is Daylight Saving Time (DST) in Effingham?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Effingham, Illinois, 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 rainiest month in Effingham?
The month with the most rainfall in Effingham is April, when the rain falls for 14 days and typically aggregates up to 2.83" (72mm) of precipitation.
When it does not snow in Effingham?
In Effingham, Illinois, snow does not fall in May through October.
When are the longest days in Effingham?
June has the longest days of the year in Effingham, Illinois, with an average of 14h and 54min of daylight.
What month has the most sunshine in Effingham?
The month with the most sunshine is June, with an average of 10.5h of sunshine.
What are the months with the highest UV index in Effingham?
The months with the highest UV index in Effingham, Illinois, are June through August, with an average maximum UV index of 6.
What month is the hottest in Effingham?
Effingham's temperatures tend to reach their peak averages in July, with a high of 83.3°F (28.5°C) and a low of 66.6°F (19.2°C).
What is the most humid month in Effingham?
The most humid month in Effingham is July, with an average relative humidity of 82%.
What is the least humid month in Effingham?
With an average relative humidity of 71%, October is the least humid month in Effingham.
What is the month with the shortest days in Effingham?
With an average of 9h and 30min of daylight, December has the shortest days of the year in Effingham.
Average temperature
Effingham, IL
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (35.2°F).
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (23°F).
Average pressure
Effingham, 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:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.98"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:
30.13"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
Effingham, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6mph - Average wind speed in August:
6.1mph - Average wind speed in September:
6.8mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.4mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6mph).
Average humidity
Effingham, IL
The month with the highest relative humidity is July (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Effingham, IL
- Average rainfall in January:
1.46" - Average rainfall in February:
1.06" - Average rainfall in March:
1.77" - Average rainfall in April:
2.83" - Average rainfall in May:
2.44" - Average rainfall in June:
2.4"
- Average rainfall in July:
2.17" - Average rainfall in August:
2.09" - Average rainfall in September:
1.14" - Average rainfall in October:
1.77" - Average rainfall in November:
1.34" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is April (2.83").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days
Effingham, IL
- Average rainfall days in January:
6.9 days - Average rainfall days in February:
7.6 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
14 days - Average rainfall days in May:
14.8 days - Average rainfall days in June:
14 days
- Average rainfall days in July:
15.2 days - Average rainfall days in August:
12.7 days - Average rainfall days in September:
11.3 days - Average rainfall days in October:
10.1 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
8.6 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is January (6.9 days).
Average snowfall
Effingham, IL
The month with the highest snowfall is January (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Effingham, IL
- Average snowfall days in January:
4.8 days - Average snowfall days in February:
5.3 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0.4 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:
1.4 days - Average snowfall days in December:
3.5 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Effingham, 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 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 3min
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 2min - Average sunshine in February:
4h and 3min - 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 3min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 1min - Average sunshine in October:
6h and 2min - 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 30min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Effingham, IL
- Average sunshine days in January:
20 days - Average sunshine days in February:
15.4 days - Average sunshine days in March:
16.2 days - Average sunshine days in April:
13.9 days - Average sunshine days in May:
12.9 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
13 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
16.6 days - Average sunshine days in October:
19.1 days - Average sunshine days in November:
19.1 days - Average sunshine days in December:
19.1 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is May (12.9 days).
Average UV index
Effingham, 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
Effingham, IL
The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are June and September (Cloud cover 29).
Average visibility
Effingham, 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).
Effingham, Illinois, USA
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