Climate and monthly weather forecastManchester, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, is a wintry winter month in Manchester, Illinois, with an average temperature ranging between max 34.3°F (1.3°C) and min 21.9°F (-5.6°C). Manchester's coldest temperatures are experienced in January, with average high temperatures of 34.3°F (1.3°C) and lows of 21.9°F (-5.6°C). Weather in January »Weather in February
The last month of the winter, February, is another cold month in Manchester, Illinois, with an average temperature varying between 39.4°F (4.1°C) and 25.3°F (-3.7°C). Manchester observes a minor difference in average high-temperatures between January's 34.3°F (1.3°C) and February's 39.4°F (4.1°C). Weather in February »Weather in March
March, the first month of the spring in Manchester, is a cool month, with an average temperature fluctuating between 52.2°F (11.2°C) and 36.1°F (2.3°C). The shift into March is marked by a rise in the average high-temperature, moving from February's cold 39.4°F (4.1°C) to a cool 52.2°F (11.2°C). Weather in March »Weather in April
April in Manchester, Illinois, is an enjoyable spring month, with temperature in the range of an average low of 46.2°F (7.9°C) and an average high of 63.7°F (17.6°C). April brings a rise in Manchester's average high-temperature, moving from a fresh 52.2°F (11.2°C) in March to a refreshing 63.7°F (17.6°C). Weather in April »Weather in May
May, the last month of the spring in Manchester, is a pleasant month, with an average temperature ranging between max 73.2°F (22.9°C) and min 56.1°F (13.4°C). The shift into May brings an increase in the average high-temperature, moving from a refreshing 63.7°F (17.6°C) in April to an agreeable 73.2°F (22.9°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Manchester, Illinois, with an average temperature ranging between max 82°F (27.8°C) and min 64.6°F (18.1°C). As Manchester welcomes June, the average high-temperature displays a subtle shift, adjusting from an agreeable 73.2°F (22.9°C) in May to a moderately hot 82°F (27.8°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Manchester, Illinois, with an average temperature ranging between min 67.1°F (19.5°C) and max 84.2°F (29°C). July registers as the month with the highest average temperatures, reaching 84.2°F (29°C) at its peak and 67.1°F (19.5°C) at the lowest. The heat index in July is estimated at a very hot 95°F (35°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Manchester, Illinois, with an average temperature varying between 83.5°F (28.6°C) and 65.5°F (18.6°C). Manchester notes an average high-temperature of a still moderately hot 83.5°F (28.6°C) in August, displaying minor variation from July. Weather in August »Weather in September
September, the first month of the autumn in Manchester, is still a warm month, with an average temperature varying between 78.1°F (25.6°C) and 59.2°F (15.1°C). With September's onset, the weather reveals a slight temperature decrease, transitioning from 83.5°F (28.6°C) in August to a still moderately hot 78.1°F (25.6°C). Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Manchester, Illinois, with an average temperature fluctuating between 64.4°F (18°C) and 47.8°F (8.8°C). Manchester's weather changes with the onset of October, slightly falling from a moderately hot 78.1°F (25.6°C) in September to a comfortable 64.4°F (18°C). Weather in October »Weather in November
The last month of the autumn, November, is also a fresh month in Manchester, Illinois, with an average temperature varying between 36.5°F (2.5°C) and 51.6°F (10.9°C). As October shifts into November, a slight alteration in temperatures is observed, with average highs reducing from a comfortable 64.4°F (18°C) to a cool 51.6°F (10.9°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Manchester, Illinois, with temperature in the range of an average low of 28.4°F (-2°C) and an average high of 40.1°F (4.5°C). December's arrival coincides with a drop in the average high-temperature, decreasing from November's fresh 51.6°F (10.9°C) to a cold 40.1°F (4.5°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
Manchester's coldest temperatures are experienced in January, with average high temperatures of 34.3°F (1.3°C) and lows of 21.9°F (-5.6°C).
The months with the least rainfall in Manchester, Illinois, are January and November Rain falls for 5.5 days and accumulates 0.83" (21mm) of rain.
In Manchester, Illinois, during the entire year, the rain falls for 127.3 days and collects up to 17.24" (438mm) of precipitation.
January through April, November and December are months with snowfall.
Throughout the year, there are 22.5 snowfall days, and 5.08" (129mm) of snow is accumulated.
The month with the least sunshine in Manchester is January, with an average of 4.4h of sunshine.
The months with the lowest UV index in Manchester are January, February, November and December, with an average maximum UV index of 2.
The month with the most snowfall in Manchester, Illinois, is February, when snow falls for 6.4 days and typically aggregates up to 1.69" (43mm) of snow.
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.
May through October are months without snowfall in Manchester.
The month with the most rainfall in Manchester, Illinois, is June, when the rain falls for 13.6 days and typically aggregates up to 2.44" (62mm) of precipitation.
June has the longest days of the year, with an average of 14h and 54min of daylight.
The month with the most sunshine is June, with an average of 10.2h of sunshine.
June through August, with an average maximum UV index of 6, are months with the highest UV index in Manchester, Illinois.
July is the warmest month of the year in Manchester, Illinois, registering average temperatures as high as 84.2°F (29°C) and as low as 67.1°F (19.5°C).
The most humid month is July, with an average relative humidity of 81%.
October is the least humid month in Manchester, Illinois, with an average relative humidity of 71%.
December has the shortest days of the year in Manchester, with an average of 9h and 24min of daylight.
Average temperature
Manchester, IL
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34.3°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 (21.9°F).
Average pressure
Manchester, 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:
29.93"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"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 (29.91"Hg).
Average wind speed
Manchester, IL
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.8mph - Average wind speed in May:
7.9mph - Average wind speed in June:
6.9mph
- Average wind speed in July:
5.9mph - Average wind speed in August:
6mph - Average wind speed in September:
6.7mph - Average wind speed in October:
8.5mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.3mph
The windiest months (with the highest average wind speed) are January, February and April (9.8mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity
Manchester, IL
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Manchester, IL
- Average rainfall in January:
0.83" - Average rainfall in February:
0.87" - Average rainfall in March:
1.26" - Average rainfall in April:
1.89" - Average rainfall in May:
2.05" - Average rainfall in June:
2.44"
- Average rainfall in July:
1.65" - Average rainfall in August:
1.85" - Average rainfall in September:
1.34" - Average rainfall in October:
1.34" - Average rainfall in November:
0.83" - Average rainfall in December:
0.91"
The wettest month (with the highest rainfall) is June (2.44").
The driest months (with the least rainfall) are January and November (0.83").
Average rainfall days
Manchester, IL
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
5.7 days - Average rainfall days in March:
11.7 days - Average rainfall days in April:
12.5 days - Average rainfall days in May:
15.8 days - Average rainfall days in June:
13.6 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
11 days - Average rainfall days in October:
10 days - Average rainfall days in November:
7.8 days - Average rainfall days in December:
6.7 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.5 days).
Average snowfall
Manchester, IL
The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Manchester, IL
- Average snowfall days in January:
7.2 days - Average snowfall days in February:
6.4 days - Average snowfall days in March:
2.8 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:
1.5 days - Average snowfall days in December:
4.2 days
The month with the highest number of snowfall days is January (7.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Manchester, IL
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 24min - Average daylight in June:
14h and 54min
- Average daylight in July:
14h and 36min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
10h and 0min - Average daylight in December:
9h and 24min
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 24min).
- Average sunshine in January:
4h and 24min - Average sunshine in February:
4h and 30min - Average sunshine in March:
6h and 24min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 12min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 24min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days
Manchester, IL
- Average sunshine days in January:
19.9 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
14.9 days - Average sunshine days in May:
12.5 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
20.2 days - Average sunshine days in November:
20.5 days - Average sunshine days in December:
20.6 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is July (12.3 days).
Average UV index
Manchester, 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
Manchester, IL
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility
Manchester, 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).
