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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, is a freezing cold winter month in Bristol, Illinois, with an average temperature fluctuating between 28.4°F (-2°C) and 16.7°F (-8.5°C). January is the coldest month, with an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 16.7°F (-8.5°C). Weather in January »
Weather in February
The last month of the winter, February, is a wintry month in Bristol, Illinois, with an average temperature ranging between max 32.5°F (0.3°C) and min 19.8°F (-6.8°C). With the onset of February, the average high-temperature registers at a cold 32.5°F (0.3°C), subtly different from January's 28.4°F (-2°C). Weather in February »
Weather in March
March, the first month of the spring in Bristol, is a frosty month, with an average temperature varying between 45.7°F (7.6°C) and 31.5°F (-0.3°C). As February gives way to March, the average high-temperature displays an increase, moving from a cold 32.5°F (0.3°C) to a frosty 45.7°F (7.6°C). Weather in March »
Weather in April
April is a mild spring month in Bristol, Illinois, with an average temperature fluctuating between 57°F (13.9°C) and 40.8°F (4.9°C). As Bristol transitions into April, the average high-temperature shows a change, moving from a frosty 45.7°F (7.6°C) in March to a refreshing 57°F (13.9°C). Weather in April »
Weather in May
May, the last month of the spring in Bristol, is an agreeable month, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 52.3°F (11.3°C). Bristol's transition into May brings a rise in the average high-temperature, moving from a moderate 57°F (13.9°C) in April to a pleasant 69.4°F (20.8°C). Weather in May »
Weather in June
June, the first month of the summer in Bristol, is a warm month, with an average temperature ranging between min 60.8°F (16°C) and max 78.4°F (25.8°C). An escalation in the average high-temperature is seen with the onset of June, moving from a pleasant 69.4°F (20.8°C) in May to a moderately hot 78.4°F (25.8°C). Weather in June »
Weather in July
July, like June, in Bristol, Illinois, is a moderately hot summer month, with an average temperature varying between 81.1°F (27.3°C) and 64.2°F (17.9°C). July is the warmest month, exhibiting average temperatures of 81.1°F (27.3°C) at the peak and 64.2°F (17.9°C) at the base. The heat index value for July is evaluated at a hot 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Bristol, is another warm month, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 79.3°F (26.3°C). The shift from July to August is characterized by an average high-temperature of a still warm 79.3°F (26.3°C), not significantly different from the 81.1°F (27.3°C) of July. Weather in August »
Weather in September
September, the first month of the autumn in Bristol, is still a warm month, with an average temperature varying between 74.1°F (23.4°C) and 56.3°F (13.5°C). The weather during September records an average high-temperature of a still moderately hot 74.1°F (23.4°C), closely mirroring the preceding month. Weather in September »
Weather in October
October, like September, in Bristol, Illinois, is another enjoyable autumn month, with an average temperature fluctuating between 45.1°F (7.3°C) and 60.8°F (16°C). The average high-temperature drops in October, from September's warm 74.1°F (23.4°C) to a refreshing 60.8°F (16°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Bristol, Illinois, with temperature in the range of an average high of 46°F (7.8°C) and an average low of 33.3°F (0.7°C). Bristol, Illinois, experiences a clear temperature downturn in November, with average high-temperatures moving from an enjoyable 60.8°F (16°C) in October to a chilly 46°F (7.8°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Bristol, Illinois, with an average temperature ranging between max 34.5°F (1.4°C) and min 24.1°F (-4.4°C). December shows a mild decline in the average high-temperature, falling from November's chilly 46°F (7.8°C) to a wintry 34.5°F (1.4°C). Weather in December »
[Resources]Frequently asked questions
What time of the year is the coldest in Bristol?
With an average high-temperature of 28.4°F (-2°C) and an average low-temperature of 16.7°F (-8.5°C), January is the coldest month in Bristol.
What is the most humid month in Bristol?
The months with the highest humidity are January, February, July and August, with an average relative humidity of 83%.
How many days does it rain in Bristol?
Throughout the year, there are 133.1 rainfall days, and 16.93" (430mm) of precipitation is accumulated.
When does it snow in Bristol?
January through April, October through December are months with snowfall.
What is the snowiest month in Bristol?
The month with the most snowfall is January, when snow falls for 10.7 days and typically aggregates up to 1.73" (44mm) of snow.
How many days does it snow in Bristol?
In Bristol, during the entire year, snow falls for 39.5 days and aggregates up to 6.69" (170mm) of snow.
What is the month with the least sunshine in Bristol?
January has the least sunshine of the year in Bristol, Illinois, with an average of 3.8h of sunshine.
What are the months with the lowest UV index in Bristol?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Bristol?
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.
When it does not snow in Bristol?
In Bristol, snow does not fall in May through September.
What is the wettest month in Bristol?
June is the month with the most rainfall in Bristol. Rain falls for 14.9 days and accumulates 2.24" (57mm) of precipitation.
When are the longest days in Bristol?
June has the longest days of the year, with an average of 15h and 12min of daylight.
When is the highest UV index in Bristol?
June and July, with an average maximum UV index of 6, are months with the highest UV index in Bristol, Illinois.
What is the warmest month in Bristol?
July, having an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 64.2°F (17.9°C), is the warmest month in Bristol, Illinois.
What month has the most sunshine in Bristol?
With an average of 9.8h of sunshine, July has the most sunshine of the year.
What is the least humid month in Bristol?
The least humid month is October, with an average relative humidity of 74%.
What is the driest month in Bristol?
The months with the least rainfall in Bristol, Illinois, are November and December Rain falls for 7.6 days and accumulates 0.75" (19mm) of rain.
What is the month with the shortest days in Bristol?
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Bristol, IL
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28.4°F).
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure
Bristol, IL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"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:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Bristol, IL
- Average wind speed in January:
9.6mph - Average wind speed in February:
9.6mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.7mph - Average wind speed in May:
8.2mph - Average wind speed in June:
7.1mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Bristol, IL
The months with the highest relative humidity are January, February, July and August (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Bristol, IL
- Average rainfall in January:
0.87" - Average rainfall in February:
0.79" - Average rainfall in March:
0.94" - Average rainfall in April:
1.77" - Average rainfall in May:
2.13" - Average rainfall in June:
2.24"
- Average rainfall in July:
2.17" - Average rainfall in August:
1.77" - Average rainfall in September:
1.3" - Average rainfall in October:
1.46" - Average rainfall in November:
0.75" - Average rainfall in December:
0.75"
The wettest month (with the highest rainfall) is June (2.24").
The driest months (with the least rainfall) are November and December (0.75").
Average rainfall days
Bristol, IL
- Average rainfall days in January:
5 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
14.4 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
14.9 days
- Average rainfall days in July:
16.6 days - Average rainfall days in August:
15 days - Average rainfall days in September:
12 days - Average rainfall days in October:
11.2 days - Average rainfall days in November:
7.6 days - Average rainfall days in December:
6.5 days
The month with the highest number of rainy days is July (16.6 days).
The month with the least rainy days is February (4.3 days).
Average snowfall
Bristol, IL
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Bristol, IL
- Average snowfall days in January:
10.7 days - Average snowfall days in February:
9.3 days - Average snowfall days in March:
5.6 days - Average snowfall days in April:
1.8 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:
2.8 days - Average snowfall days in December:
8.8 days
The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Bristol, IL
- Average daylight in January:
9h and 4min - 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 5min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 4min - 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 48min).
Average sunshine days
Bristol, IL
- Average sunshine days in January:
17 days - Average sunshine days in February:
15.4 days - Average sunshine days in March:
15.7 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
12.5 days - Average sunshine days in June:
11.8 days
- Average sunshine days in July:
10.2 days - Average sunshine days in August:
11.6 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (10.2 days).
Average UV index
Bristol, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Bristol, IL
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility
Bristol, IL
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Bristol, Illinois, USA
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