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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, in Thomson, Illinois, is a freezing cold winter month, with an average temperature ranging between max 26.1°F (-3.3°C) and min 13.5°F (-10.3°C). In Thomson, January records the lowest average temperatures, peaking at 26.1°F (-3.3°C) and reaching a low of 13.5°F (-10.3°C). Weather in January »
Weather in February
The last month of the winter, February, is another freezing cold month in Thomson, Illinois, with an average temperature fluctuating between 16.9°F (-8.4°C) and 30.4°F (-0.9°C). The average high-temperature during February registers at a still freezing cold 30.4°F (-0.9°C), closely corresponding to the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Thomson, Illinois, with an average temperature ranging between min 29.8°F (-1.2°C) and max 44.6°F (7°C). Thomson sees an increase in average high-temperatures during March, moving from a freezing cold 30.4°F (-0.9°C) in February to a frosty 44.6°F (7°C). Weather in March »
Weather in April
April is a mild spring month in Thomson, Illinois, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 56.7°F (13.7°C). With the onset of April, Thomson experiences a temperature shift, with the average high-temperature moving from a frosty 44.6°F (7°C) in March to a mild 56.7°F (13.7°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Thomson, Illinois, with temperature in the range of an average high of 68.5°F (20.3°C) and an average low of 51.6°F (10.9°C). With the onset of May, Thomson's average high-temperature experiences a rise, moving from April's mild 56.7°F (13.7°C) to a pleasant 68.5°F (20.3°C). Weather in May »
Weather in June
June, the first month of the summer in Thomson, is a warm month, with an average temperature varying between 60.8°F (16°C) and 77.4°F (25.2°C). June comes with a subtle rise, with the average high-temperature adjusting from a pleasant 68.5°F (20.3°C) in May to a moderately hot 77.4°F (25.2°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Thomson, Illinois, with an average temperature fluctuating between 63.5°F (17.5°C) and 80.1°F (26.7°C). Thomson's warmest weather arrives in July, when temperatures average a high of 80.1°F (26.7°C) and a low of 63.5°F (17.5°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Thomson, Illinois, with an average temperature ranging between min 61.2°F (16.2°C) and max 79.2°F (26.2°C). Thomson's shift from July to August is accompanied by an average high-temperature of a still warm 79.2°F (26.2°C), a slight deviation from 80.1°F (26.7°C). Weather in August »
Weather in September
September, the first month of the autumn in Thomson, is still a warm month, with an average temperature varying between 73.4°F (23°C) and 54.5°F (12.5°C). September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from 79.2°F (26.2°C) in August to a still moderately hot 73.4°F (23°C). Weather in September »
Weather in October
October, like September, is another refreshing autumn month in Thomson, Illinois, with temperature in the range of an average high of 59.7°F (15.4°C) and an average low of 43.5°F (6.4°C). Arrival of October comes with a reduction in the average high-temperature, falling from a moderately hot 73.4°F (23°C) in September to a refreshing 59.7°F (15.4°C). Weather in October »
Weather in November
November, the last month of the autumn in Thomson, is another chilly month, with temperature in the range of an average high of 45.1°F (7.3°C) and an average low of 31.6°F (-0.2°C). November's onset is marked by a clear temperature decrease, falling from a mild 59.7°F (15.4°C) in October to a frosty 45.1°F (7.3°C). Weather in November »
Weather in December
December, the first month of the winter in Thomson, is also an icy month, with temperature in the range of an average low of 22.5°F (-5.3°C) and an average high of 32.7°F (0.4°C). December comes with a decrease in the average high-temperature, falling from a chilly 45.1°F (7.3°C) in November to a cold 32.7°F (0.4°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Thomson?
In Thomson, January is the month with the lowest recorded average temperatures, measuring a high of 26.1°F (-3.3°C) and a low of 13.5°F (-10.3°C).
What is the most humid month in Thomson?
With an average relative humidity of 86%, January is the most humid month.
How much does it rain in Thomson?
Throughout the year, in Thomson, Illinois, there are 149.3 rainfall days, and 29.76" (756mm) of precipitation is accumulated.
When does it snow in Thomson?
January through May, October through December are months with snowfall in Thomson.
What is the snowiest month in Thomson?
The month with the most snowfall is January, when snow falls for 11.7 days and typically aggregates up to 5.12" (130mm) of snow.
How much does it snow in Thomson?
Throughout the year, in Thomson, there are 41.2 snowfall days, and 16.73" (425mm) of snow is accumulated.
What is the month with the least sunshine in Thomson?
January has the least sunshine of the year, with an average of 3.7h of sunshine.
When is the lowest UV index in Thomson?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
What is the driest month in Thomson?
The month with the least rainfall is February, when the rain falls for 4.4 days and typically collects 1.38" (35mm) of precipitation.
When is Daylight Saving Time (DST) in Thomson?
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 rainiest month in Thomson?
May is the month with the most rainfall in Thomson. Rain falls for 18.5 days and accumulates 4.09" (104mm) of precipitation.
When it does not snow in Thomson?
In Thomson, Illinois, snow does not fall in June through September.
When are the longest days in Thomson?
With an average of 15h and 12min of daylight, June has the longest days of the year in Thomson, Illinois.
What month is the hottest in Thomson?
Temperature records mark July as the warmest month, with highs averaging 80.1°F (26.7°C) and lows at 63.5°F (17.5°C).
What month has the most sunshine in Thomson?
The month with the most sunshine in Thomson, Illinois, is July, with an average of 9.8h of sunshine.
What is the month with the highest UV index in Thomson?
The month with the highest UV index is July, with an average maximum UV index of 6.
What is the least humid month in Thomson?
October is the least humid month in Thomson, with an average relative humidity of 74%.
What is the month with the shortest days in Thomson?
December has the shortest days of the year in Thomson, with an average of 9h and 12min of daylight.
Average temperature
Thomson, IL
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (26.1°F).
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).
Average pressure
Thomson, IL
- Average pressure in January:
30.12"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:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Thomson, IL
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.9mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.5mph
- 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:
9.1mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.4mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Thomson, IL
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Thomson, IL
- Average rainfall in January:
1.42" - Average rainfall in February:
1.38" - Average rainfall in March:
1.89" - Average rainfall in April:
3.27" - Average rainfall in May:
4.09" - Average rainfall in June:
3.82"
- Average rainfall in July:
3.23" - Average rainfall in August:
2.17" - Average rainfall in September:
2.48" - Average rainfall in October:
2.68" - Average rainfall in November:
1.81" - Average rainfall in December:
1.54"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is February (1.38").
Average rainfall days
Thomson, IL
- Average rainfall days in January:
5.2 days - Average rainfall days in February:
4.4 days - Average rainfall days in March:
12.3 days - Average rainfall days in April:
16 days - Average rainfall days in May:
18.5 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
15.3 days - Average rainfall days in September:
12.1 days - Average rainfall days in October:
12.6 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
8 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (4.4 days).
Average snowfall
Thomson, IL
- Average snowfall in January:
5.12" - Average snowfall in February:
4.06" - Average snowfall in March:
2.01" - Average snowfall in April:
0.91" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Thomson, IL
- Average snowfall days in January:
11.7 days - Average snowfall days in February:
9.4 days - Average snowfall days in March:
6.2 days - Average snowfall days in April:
1.4 days - Average snowfall days in May:
0.1 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:
0.4 days - Average snowfall days in November:
3.3 days - Average snowfall days in December:
8.7 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Thomson, IL
- Average daylight in January:
9h and 3min - 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 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 4min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 2min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Thomson, IL
- Average sunshine days in January:
15.3 days - Average sunshine days in February:
14.4 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
10.9 days - Average sunshine days in June:
9.6 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
13.5 days - Average sunshine days in September:
16 days - Average sunshine days in October:
15.8 days - Average sunshine days in November:
17.8 days - Average sunshine days in December:
16.5 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is June (9.6 days).
Average UV index
Thomson, IL
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Thomson, IL
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility
Thomson, IL
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Thomson, Illinois, USA
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