Climate and monthly weather forecastBrookport, IL
Climate and monthly weather forecast
Weather in January
January, like December, in Brookport, Illinois, is an icy winter month, with an average temperature fluctuating between 28°F (-2.2°C) and 41.4°F (5.2°C). Brookport's coldest temperatures are experienced in January, with average high temperatures of 41.4°F (5.2°C) and lows of 28°F (-2.2°C). Weather in January »Weather in February
The last month of the winter, February, is a chilly month in Brookport, Illinois, with an average temperature varying between 31.6°F (-0.2°C) and 45.7°F (7.6°C). With the advent of February, Brookport's high-temperatures adjust to a chilly 45.7°F (7.6°C), closely aligning with the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a refreshing month in Brookport, Illinois, with temperature in the range of an average low of 40.5°F (4.7°C) and an average high of 56.3°F (13.5°C). Brookport's transition into March sees a rise in the average high-temperature, advancing from a frosty 45.7°F (7.6°C) in February to a mild 56.3°F (13.5°C). Weather in March »Weather in April
April in Brookport, Illinois, is a refreshing spring month, with an average temperature fluctuating between 49.5°F (9.7°C) and 67.1°F (19.5°C). April's arrival coincides with a rise in the average high-temperature, moving from March's mild 56.3°F (13.5°C) to an enjoyable 67.1°F (19.5°C). Weather in April »Weather in May
May, the last month of the spring in Brookport, is a warm month, with an average temperature varying between 76.5°F (24.7°C) and 59°F (15°C). May's onset brings a temperature rise, moving from a refreshing 67.1°F (19.5°C) in April to a warm 76.5°F (24.7°C). Weather in May »Weather in June
June, the first month of the summer in Brookport, is still a warm month, with an average temperature ranging between min 66.7°F (19.3°C) and max 85.6°F (29.8°C). In June, the average high-temperature increases from a warm 76.5°F (24.7°C) in May to a still moderately hot 85.6°F (29.8°C). Weather in June »Weather in July
July is a hot summer month in Brookport, Illinois, with temperature in the range of an average low of 68.9°F (20.5°C) and an average high of 88.3°F (31.3°C). With an average high-temperature of 88.3°F (31.3°C) and an average low-temperature of 68.9°F (20.5°C), July is the warmest month. For most parts of July, the heat index is estimated at an extremely hot 104°F (40°C). Weather in July »Weather in August
The last month of the summer, August, is also a hot month in Brookport, Illinois, with an average temperature ranging between max 86.7°F (30.4°C) and min 67.3°F (19.6°C). The unfolding of August shows an average high-temperature of a still tropical 86.7°F (30.4°C), indicating a slight variance from July's 88.3°F (31.3°C). Weather in August »Weather in September
September, the first month of the autumn in Brookport, is also a moderately hot month, with an average temperature varying between 81.5°F (27.5°C) and 61.7°F (16.5°C). Brookport, Illinois, starts September with an average high-temperature of a warm 81.5°F (27.5°C), hinting at a minimal fluctuation from August. Weather in September »Weather in October
October, the same as September, in Brookport, Illinois, is an agreeable autumn month, with temperature in the range of an average high of 68.9°F (20.5°C) and an average low of 50.5°F (10.3°C). October ushers in a slight temperature change, with average high-temperatures reducing from September's moderately hot 81.5°F (27.5°C) to an agreeable 68.9°F (20.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Brookport, Illinois, with temperature in the range of an average high of 54.9°F (12.7°C) and an average low of 39.6°F (4.2°C). The beginning of November marks a decrease in the average high-temperature, transitioning from an agreeable 68.9°F (20.5°C) in October to a fresh 54.9°F (12.7°C). Weather in November »Weather in December
December, the first month of the winter in Brookport, is still a chilly month, with an average temperature fluctuating between 45.5°F (7.5°C) and 33.3°F (0.7°C). Brookport observes a minor decrease in the average high-temperature with the arrival of December, falling from November's fresh 54.9°F (12.7°C) to a frosty 45.5°F (7.5°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
The coldest period in Brookport, Illinois, tends to be January, when average temperatures fluctuate between a high of 41.4°F (5.2°C) and a low of 28°F (-2.2°C).
Throughout the year, in Brookport, Illinois, there are 160.7 rainfall days, and 36.73" (933mm) of precipitation is accumulated.
Months with snowfall are January through April, November and December.
In Brookport, during the entire year, snow falls for 12.9 days and aggregates up to 4.33" (110mm) of snow.
January has the least sunshine of the year in Brookport, with an average of 4.7h of sunshine.
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the most snowfall in Brookport is February, when snow falls for 3.8 days and typically aggregates up to 1.61" (41mm) of snow.
March and May, with an average relative humidity of 79%, are most humid months in Brookport.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Brookport, 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 is the month with the most rainfall in Brookport, Illinois. Rain falls for 16.1 days and accumulates 4.29" (109mm) of precipitation.
In Brookport, snow does not fall in May through October.
May through August, with an average maximum UV index of 6, are months with the highest UV index in Brookport.
With an average of 14h and 42min of daylight, June has the longest days of the year in Brookport.
June and July, with an average of 10.6h of sunshine, are months with the most sunshine in Brookport, Illinois.
July, on average, is the warmest month in Brookport, Illinois, registering a high temperature of 88.3°F (31.3°C) and a low of 68.9°F (20.5°C).
The month with the least rainfall in Brookport is September, when the rain falls for 11.1 days and typically collects 1.5" (38mm) of precipitation.
The least humid month in Brookport, Illinois, is October, with an average relative humidity of 70%.
December has the shortest days of the year in Brookport, with an average of 9h and 42min of daylight.
Average temperature
Brookport, IL
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.4°F).
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure
Brookport, IL
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.95"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:
30.05"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
Brookport, IL
- Average wind speed in January:
8.9mph - Average wind speed in February:
8.8mph - Average wind speed in March:
8.9mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.5mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.6mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.5mph - Average wind speed in November:
8.1mph - Average wind speed in December:
8.3mph
The windiest months (with the highest average wind speed) are January, March and April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity
Brookport, IL
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Brookport, IL
- Average rainfall in January:
2.48" - Average rainfall in February:
3.78" - Average rainfall in March:
3.78" - Average rainfall in April:
4.29" - Average rainfall in May:
3.78" - Average rainfall in June:
2.91"
The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days
Brookport, IL
- Average rainfall days in January:
11 days - Average rainfall days in February:
11.9 days - Average rainfall days in March:
15.6 days - Average rainfall days in April:
16.1 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
15.1 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
14.6 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
10.2 days - Average rainfall days in November:
11 days - Average rainfall days in December:
11.5 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is October (10.2 days).
Average snowfall
Brookport, IL
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Brookport, IL
- Average snowfall days in January:
4.3 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
1.7 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 days - Average snowfall days in November:
0.8 days - Average snowfall days in December:
2 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Brookport, IL
- Average daylight in January:
10h and 0min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 12min - Average daylight in June:
14h and 42min
- Average daylight in July:
14h and 24min - Average daylight in August:
13h and 30min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 12min - Average daylight in December:
9h and 42min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in January:
4h and 42min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 54min - Average sunshine in May:
9h and 18min - Average sunshine in June:
10h and 36min
- Average sunshine in July:
10h and 36min - Average sunshine in August:
10h and 24min - Average sunshine in September:
9h and 36min - Average sunshine in October:
6h and 48min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 54min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days
Brookport, IL
- Average sunshine days in January:
16.5 days - Average sunshine days in February:
13.6 days - Average sunshine days in March:
13 days - Average sunshine days in April:
12.1 days - Average sunshine days in May:
11 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
17.9 days - Average sunshine days in December:
17.7 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (11 days).
Average UV index
Brookport, 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 and December (UV index 2).
Average cloud cover
Brookport, IL
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 26).
Average visibility
Brookport, 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).
