Climate and monthly weather forecastBrownstown, IL
Climate and monthly weather forecast
Weather in January
January, like December, in Brownstown, Illinois, is an icy winter month, with temperature in the range of an average low of 23.4°F (-4.8°C) and an average high of 36°F (2.2°C). The coldest month is January, with an average high-temperature of 36°F (2.2°C) and an average low-temperature of 23.4°F (-4.8°C). Weather in January »Weather in February
February, the last month of the winter in Brownstown, is another cold month, with an average temperature varying between 40.5°F (4.7°C) and 27°F (-2.8°C). The initiation of February records an average high-temperature of a still icy 40.5°F (4.7°C), displaying a near consistency with the previous month. Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Brownstown, Illinois, with an average temperature varying between 36.9°F (2.7°C) and 52.2°F (11.2°C). The shift into March is accompanied by a temperature increase, with the average high-temperature rising from a wintry 40.5°F (4.7°C) in February to a fresh 52.2°F (11.2°C). Weather in March »Weather in April
April is a comfortable spring month in Brownstown, Illinois, with temperature in the range of an average low of 46.6°F (8.1°C) and an average high of 63.5°F (17.5°C). April indicates a change in the average high-temperature, moving up from a cool 52.2°F (11.2°C) in March to an enjoyable 63.5°F (17.5°C). Weather in April »Weather in May
The last month of the spring, May, is a warm month in Brownstown, Illinois, with an average temperature fluctuating between 57°F (13.9°C) and 73.4°F (23°C). Brownstown in May sees a temperature change, with average high-temperatures moving from an enjoyable 63.5°F (17.5°C) in April to a moderately hot 73.4°F (23°C). Weather in May »Weather in June
The first month of the summer, June, is also a moderately hot month in Brownstown, Illinois, with temperature in the range of an average high of 82.2°F (27.9°C) and an average low of 65.5°F (18.6°C). June's arrival signals a modest temperature shift, moving from 73.4°F (23°C) in May to a still moderately hot 82.2°F (27.9°C). Weather in June »Weather in July
July, like June, in Brownstown, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 83.7°F (28.7°C) and 67.1°F (19.5°C). Brownstown experiences its highest temperatures in July, with an average peak of 83.7°F (28.7°C) and a low of 67.1°F (19.5°C). The average heat index in July is estimated at a tropical 93.2°F (34°C). Weather in July »Weather in August
August, the last month of the summer in Brownstown, is another warm month, with an average temperature fluctuating between 82.4°F (28°C) and 65.1°F (18.4°C). Brownstown marks the arrival of August with an average high-temperature of a still moderately hot 82.4°F (28°C), hardly different from July's 83.7°F (28.7°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Brownstown, Illinois, with an average temperature fluctuating between 59.4°F (15.2°C) and 77.9°F (25.5°C). At the onset of September, Brownstown records an average high-temperature of a still warm 77.9°F (25.5°C), showing little deviation from the preceding month. Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Brownstown, Illinois, with an average temperature varying between 65.1°F (18.4°C) and 48.4°F (9.1°C). In Brownstown, the beginning of October is marked by a lowered average high-temperature, shifting from September's warm 77.9°F (25.5°C) to a refreshing 65.1°F (18.4°C). Weather in October »Weather in November
The last month of the autumn, November, is another cool month in Brownstown, Illinois, with an average temperature varying between 51.4°F (10.8°C) and 37.2°F (2.9°C). The decrease of average high-temperatures is mild in November, with a decline from a comfortable 65.1°F (18.4°C) in October to a cool 51.4°F (10.8°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Brownstown, Illinois, with an average temperature ranging between min 29.5°F (-1.4°C) and max 40.6°F (4.8°C). Brownstown's December weather comes with a decrease in average high-temperatures, moving from a fresh 51.4°F (10.8°C) in November to a wintry 40.6°F (4.8°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
January is Brownstown's coldest month, registering average high temperatures of 36°F (2.2°C) and lows of 23.4°F (-4.8°C).
In Brownstown, during the entire year, the rain falls for 139.3 days and collects up to 23.94" (608mm) of precipitation.
January through April, November and December are months with snowfall.
In Brownstown, during the entire year, snow falls for 18.9 days and aggregates up to 5.24" (133mm) of snow.
With an average of 4.3h of sunshine, January has the least sunshine of the year in Brownstown.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Brownstown.
The month with the least rainfall is February, when the rain falls for 7.8 days and typically collects 1.18" (30mm) of precipitation.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Brownstown, 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.
The months with the most rainfall are April and June, with an average 2.95" (75mm) of precipitation.
May through October are months without snowfall in Brownstown.
The month with the longest days is June, with an average of 14h and 54min of daylight.
With an average of 10.4h of sunshine, June has the most sunshine of the year.
June through August, with an average maximum UV index of 6, are months with the highest UV index in Brownstown.
July registers as the month with the average highest temperatures, reaching 83.7°F (28.7°C) at its peak and 67.1°F (19.5°C) at the lowest.
July and August, with an average relative humidity of 81%, are most humid months in Brownstown.
The least humid month in Brownstown, Illinois, is October, with an average relative humidity of 71%.
December is the month with the most snowfall. Snow falls for 3.5 days and accumulates 1.65" (42mm) of snow.
December has the shortest days of the year, with an average of 9h and 30min of daylight.
Average temperature
Brownstown, IL
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (36°F).
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure
Brownstown, 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:
29.97"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
Brownstown, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.2mph - Average wind speed in March:
10mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.2mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6mph - Average wind speed in August:
6mph - Average wind speed in September:
6.6mph - Average wind speed in October:
8.7mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.4mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity
Brownstown, IL
The months with the highest relative humidity are July and August (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Brownstown, IL
- Average rainfall in January:
1.61" - Average rainfall in February:
1.18" - Average rainfall in March:
1.93" - Average rainfall in April:
2.95" - Average rainfall in May:
2.56" - Average rainfall in June:
2.95"
The wettest months (with the highest rainfall) are April and June (2.95").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days
Brownstown, IL
- Average rainfall days in January:
7.3 days - Average rainfall days in February:
7.8 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
14.2 days - Average rainfall days in May:
15.7 days - Average rainfall days in June:
14.1 days
- Average rainfall days in July:
16 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
9.7 days - Average rainfall days in November:
8.5 days - Average rainfall days in December:
8.9 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (7.3 days).
Average snowfall
Brownstown, IL
The month with the highest snowfall is December (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Brownstown, IL
- Average snowfall days in January:
5.7 days - Average snowfall days in February:
5.6 days - Average snowfall days in March:
2.6 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:
0.1 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
3.5 days
The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Brownstown, IL
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
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 18min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 12min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 12min - Average sunshine in October:
6h and 18min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Brownstown, IL
- Average sunshine days in January:
19.5 days - Average sunshine days in February:
15.1 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
12.9 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
14.4 days - Average sunshine days in September:
16.4 days - Average sunshine days in October:
19.4 days - Average sunshine days in November:
19.5 days - Average sunshine days in December:
19.2 days
The months with the most sunshine days are January and November (19.5 days).
The months with the least sunshine days are May and July (12.3 days).
Average UV index
Brownstown, 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
Brownstown, IL
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are June and July (Cloud cover 29).
Average visibility
Brownstown, 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).
