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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 Brighton, Illinois, is another cold winter month, with an average temperature varying between 35.8°F (2.1°C) and 22.6°F (-5.2°C). January, known for its average high temperature of 35.8°F (2.1°C) and an average low temperature of 22.6°F (-5.2°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Brighton, is also a wintry month, with an average temperature varying between 26.4°F (-3.1°C) and 40.6°F (4.8°C). During February, the average high-temperature is a still cold 40.6°F (4.8°C), maintaining a close resemblance to that of the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a fresh month in Brighton, Illinois, with temperature in the range of an average low of 37°F (2.8°C) and an average high of 52.3°F (11.3°C). March's arrival brings a change in high-temperatures, moving from a cold 40.6°F (4.8°C) in February to a cool 52.3°F (11.3°C). Weather in March »
Weather in April
April is an enjoyable spring month in Brighton, Illinois, with an average temperature ranging between max 64°F (17.8°C) and min 46.8°F (8.2°C). The shift into April brings an increase in the average high-temperature, moving from a cool 52.3°F (11.3°C) in March to a comfortable 64°F (17.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a warm month in Brighton, Illinois, with temperature in the range of an average low of 56.8°F (13.8°C) and an average high of 73.9°F (23.3°C). May's arrival sees a rise in the average high-temperature, jumping from April's enjoyable 64°F (17.8°C) to a warm 73.9°F (23.3°C). Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in Brighton, Illinois, with temperature in the range of an average high of 82.6°F (28.1°C) and an average low of 65.7°F (18.7°C). A minor escalation in the average high-temperature is seen with the onset of June, moving from a warm 73.9°F (23.3°C) in May to a still moderately hot 82.6°F (28.1°C). Weather in June »
Weather in July
July, like June, in Brighton, Illinois, is a moderately hot summer month, with an average temperature varying between 84.6°F (29.2°C) and 67.5°F (19.7°C). In Brighton, the average temperatures in July are the highest, with a peak at 84.6°F (29.2°C) and a low of 67.5°F (19.7°C). The heat index value during July is computed to be a sweltering 96.8°F (36°C). Weather in July »
Weather in August
August, the last month of the summer in Brighton, is also a moderately hot month, with an average temperature varying between 65.5°F (18.6°C) and 83.3°F (28.5°C). Brighton, Illinois, transitions into August recording an average high-temperature of a still warm 83.3°F (28.5°C), closely aligning with the preceding month's temperature. Weather in August »
Weather in September
September, the first month of the autumn in Brighton, is also a moderately hot month, with temperature in the range of an average high of 78.3°F (25.7°C) and an average low of 59.4°F (15.2°C). September's weather displays an average high-temperature of a still warm 78.3°F (25.7°C), slightly varied from August's 83.3°F (28.5°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Brighton, Illinois, with temperature in the range of an average low of 48.2°F (9°C) and an average high of 65.3°F (18.5°C). October's arrival corresponds with a decrease in average high-temperatures, from September's warm 78.3°F (25.7°C) to an enjoyable 65.3°F (18.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Brighton, Illinois, with temperature in the range of an average low of 36.7°F (2.6°C) and an average high of 51.6°F (10.9°C). The onset of November results in a decrease in the average high-temperature, receding from a comfortable 65.3°F (18.5°C) in October to a cool 51.6°F (10.9°C). Weather in November »
Weather in December
December, the first month of the winter in Brighton, is also an icy month, with an average temperature varying between 29.3°F (-1.5°C) and 40.6°F (4.8°C). Transition into December marks a drop in the average high-temperature, moving from a cool 51.6°F (10.9°C) in November to a cold 40.6°F (4.8°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Brighton?
With an average high-temperature of 35.8°F (2.1°C) and an average low-temperature of 22.6°F (-5.2°C), January is the coldest month.
What is the driest month in Brighton?
The month with the least rainfall in Brighton is January, when the rain falls for 6.5 days and typically collects 1.46" (37mm) of precipitation.
How much does it rain in Brighton?
Throughout the year, in Brighton, there are 141.9 rainfall days, and 27.36" (695mm) of precipitation is accumulated.
When does it snow in Brighton?
Months with snowfall in Brighton are January through March, November and December.
How much does it snow in Brighton?
Throughout the year, in Brighton, there are 19.8 snowfall days, and 7.91" (201mm) of snow is accumulated.
What is the month with the least sunshine in Brighton?
January has the least sunshine of the year, with an average of 4.4h of sunshine.
What are the months with the lowest UV index in Brighton?
The months with the lowest UV index in Brighton, Illinois, are January, February, November and December, with an average maximum UV index of 2.
What is the snowiest month in Brighton?
The month with the most snowfall is February, when snow falls for 5.9 days and typically aggregates up to 2.48" (63mm) of snow.
When is Daylight Saving Time (DST) in Brighton?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Brighton, 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 in Brighton?
In Brighton, snow does not fall in April through October.
When is the highest UV index in Brighton?
May through August, with an average maximum UV index of 6, are months with the highest UV index in Brighton.
What is the wettest month in Brighton?
June is the month with the most rainfall. Rain falls for 15.6 days and accumulates 3.35" (85mm) of precipitation.
When are the longest days in Brighton?
The month with the longest days in Brighton is June, with an average of 14h and 54min of daylight.
What month has the most sunshine in Brighton?
The month with the most sunshine in Brighton is June, with an average of 10.3h of sunshine.
What part of the year is the hottest in Brighton?
Brighton's temperatures tend to reach their peak averages in July, with a high of 84.6°F (29.2°C) and a low of 67.5°F (19.7°C).
What is the most humid month in Brighton?
With an average relative humidity of 81%, July is the most humid month in Brighton.
What is the least humid month in Brighton?
The least humid month in Brighton, Illinois, is October, with an average relative humidity of 71%.
What is the month with the shortest days in Brighton?
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Brighton, IL
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.8°F).
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure
Brighton, IL
- Average pressure in January:
30.15"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:
29.95"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"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 (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Brighton, IL
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.7mph - Average wind speed in March:
9.5mph - Average wind speed in April:
9.5mph - Average wind speed in May:
7.7mph - Average wind speed in June:
6.8mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.8mph - Average wind speed in September:
6.4mph - Average wind speed in October:
8.3mph - Average wind speed in November:
9.1mph - Average wind speed in December:
9.1mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).
Average humidity
Brighton, IL
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Brighton, IL
- Average rainfall in January:
1.46" - Average rainfall in February:
1.5" - Average rainfall in March:
2.13" - Average rainfall in April:
2.91" - Average rainfall in May:
3.31" - Average rainfall in June:
3.35"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.87" - Average rainfall in September:
1.81" - Average rainfall in October:
2.05" - Average rainfall in November:
1.69" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days
Brighton, IL
- Average rainfall days in January:
6.5 days - Average rainfall days in February:
7.2 days - Average rainfall days in March:
13.2 days - Average rainfall days in April:
14.5 days - Average rainfall days in May:
16.7 days - Average rainfall days in June:
15.6 days
- Average rainfall days in July:
16.3 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
10.4 days - Average rainfall days in November:
9.1 days - Average rainfall days in December:
8.1 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (6.5 days).
Average snowfall
Brighton, IL
The month with the highest snowfall is February (2.48").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Brighton, IL
- Average snowfall days in January:
6.2 days - Average snowfall days in February:
5.9 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0.1 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:
3.9 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
Brighton, 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 1min - 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 2min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 1min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days
Brighton, IL
- Average sunshine days in January:
19.5 days - Average sunshine days in February:
16.4 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
14 days - Average sunshine days in May:
12.2 days - Average sunshine days in June:
12.3 days
- Average sunshine days in July:
12.1 days - Average sunshine days in August:
14.5 days - Average sunshine days in September:
16.7 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
19.3 days
The month with the most sunshine days is January (19.5 days).
The month with the least sunshine days is July (12.1 days).
Average UV index
Brighton, 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
Brighton, IL
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are August and September (Cloud cover 29).
Average visibility
Brighton, 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).
Brighton, Illinois, USA
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