Climate and monthly weather forecastAlsip, IL
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Alsip, Illinois, with temperature in the range of an average low of 18.9°F (-7.3°C) and an average high of 29.5°F (-1.4°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 29.5°F (-1.4°C) and a low of 18.9°F (-7.3°C). Weather in January »Weather in February
The last month of the winter, February, is a cold month in Alsip, Illinois, with an average temperature ranging between max 32.5°F (0.3°C) and min 21.6°F (-5.8°C). Alsip's February reports an average high-temperature of a cold 32.5°F (0.3°C), exhibiting a minor difference from January. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Alsip, Illinois, with an average temperature varying between 44.2°F (6.8°C) and 32.4°F (0.2°C). The start of March signals an increase in the average high-temperature, moving from a cold 32.5°F (0.3°C) in February to a chilly 44.2°F (6.8°C). Weather in March »Weather in April
April is a cool spring month in Alsip, Illinois, with temperature in the range of an average high of 55.2°F (12.9°C) and an average low of 41.2°F (5.1°C). Alsip's April weather brings a rise in high-temperatures, moving from a frosty 44.2°F (6.8°C) in March to a fresh 55.2°F (12.9°C). Weather in April »Weather in May
May, the last month of the spring in Alsip, is a comfortable month, with an average temperature varying between 51.8°F (11°C) and 66.4°F (19.1°C). Alsip's weather shows a temperature rise with the arrival of May, moving from a cool 55.2°F (12.9°C) in April to a refreshing 66.4°F (19.1°C). Weather in May »Weather in June
June, the first month of the summer in Alsip, is a moderately hot month, with an average temperature varying between 76.3°F (24.6°C) and 61.5°F (16.4°C). As May transitions into June, a change in temperatures is observed, with average highs moving from an enjoyable 66.4°F (19.1°C) to a warm 76.3°F (24.6°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Alsip, Illinois, with an average temperature varying between 81°F (27.2°C) and 66.6°F (19.2°C). In Alsip, Illinois, the month of July is known for its highest average temperatures, reaching a high of 81°F (27.2°C) and a low of 66.6°F (19.2°C). During July, the heat index is calculated to be a hot 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in Alsip, is also a moderately hot month, with an average temperature varying between 65.8°F (18.8°C) and 79.9°F (26.6°C). August's average high-temperature stands at a still warm 79.9°F (26.6°C), showing little deviation from July's 81°F (27.2°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Alsip, Illinois, with an average temperature ranging between max 73.6°F (23.1°C) and min 59.2°F (15.1°C). Alsip's progression into September involves a gentle drop in the average high-temperature, from 79.9°F (26.6°C) in August to a still warm 73.6°F (23.1°C). Weather in September »Weather in October
October, the same as September, in Alsip, Illinois, is another refreshing autumn month, with an average temperature fluctuating between 60.6°F (15.9°C) and 47.1°F (8.4°C). October's onset corresponds with a shift in the average high-temperature, moving from a moderately hot 73.6°F (23.1°C) in September to a moderate 60.6°F (15.9°C). Weather in October »Weather in November
November, the last month of the autumn in Alsip, is another chilly month, with temperature in the range of an average low of 35.1°F (1.7°C) and an average high of 46.2°F (7.9°C). As Alsip transitions into November, a marked decrease in the average high-temperature is observed, dropping from a mild 60.6°F (15.9°C) in October to a frosty 46.2°F (7.9°C). Weather in November »Weather in December
December, the first month of the winter in Alsip, is also an icy month, with temperature in the range of an average low of 26.4°F (-3.1°C) and an average high of 35.2°F (1.8°C). December's onset corresponds with a shift in the average high-temperature, moving from a frosty 46.2°F (7.9°C) in November to an icy 35.2°F (1.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Alsip, IL
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure
Alsip, 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:
30.09"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
Alsip, IL
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.3mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.4mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.7mph - Average wind speed in October:
9.5mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Alsip, IL
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Alsip, IL
- Average rainfall in January:
1.18" - Average rainfall in February:
1.18" - Average rainfall in March:
1.3" - Average rainfall in April:
2.32" - Average rainfall in May:
3.07" - Average rainfall in June:
2.95"
- Average rainfall in July:
2.8" - Average rainfall in August:
2.72" - Average rainfall in September:
1.97" - Average rainfall in October:
1.93" - Average rainfall in November:
1.18" - Average rainfall in December:
1.02"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.02").
Average rainfall days
Alsip, IL
- Average rainfall days in January:
6.2 days - Average rainfall days in February:
4.9 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
15.1 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
18 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
9.2 days - Average rainfall days in December:
7.4 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (4.9 days).
Average snowfall
Alsip, IL
The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Alsip, IL
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
9.5 days - Average snowfall days in March:
6.1 days - Average snowfall days in April:
2.3 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:
0.4 days - Average snowfall days in November:
2.9 days - Average snowfall days in December:
9.4 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Alsip, IL
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
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 42min - Average sunshine in February:
3h and 54min - Average sunshine in March:
6h and 12min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 54min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 30min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Alsip, IL
- Average sunshine days in January:
13.9 days - Average sunshine days in February:
13.1 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
10 days - Average sunshine days in September:
13 days - Average sunshine days in October:
14.9 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.8 days).
Average UV index
Alsip, IL
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Alsip, IL
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility
Alsip, 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).





