Climate and monthly weather forecastWarsaw, IL
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Warsaw, Illinois, with temperature in the range of an average low of 19.2°F (-7.1°C) and an average high of 31.6°F (-0.2°C). In Warsaw, January records the lowest average temperatures, peaking at 31.6°F (-0.2°C) and reaching a low of 19.2°F (-7.1°C). Weather in January »Weather in February
February, the last month of the winter in Warsaw, is a wintry month, with temperature in the range of an average low of 22.8°F (-5.1°C) and an average high of 36.3°F (2.4°C). February brings an average high-temperature of an icy 36.3°F (2.4°C), showing a slight difference from January's 31.6°F (-0.2°C). Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Warsaw, Illinois, with an average temperature varying between 50°F (10°C) and 35.1°F (1.7°C). With the transition into March, Warsaw experiences an increase in average high-temperatures, moving up from an icy 36.3°F (2.4°C) in February to a cool 50°F (10°C). Weather in March »Weather in April
April in Warsaw, Illinois, is a comfortable spring month, with temperature in the range of an average high of 62.2°F (16.8°C) and an average low of 44.2°F (6.8°C). Warsaw in April shows a temperature shift, moving from an average high of a cool 50°F (10°C) in March to an enjoyable 62.2°F (16.8°C). Weather in April »Weather in May
May, the last month of the spring in Warsaw, is a pleasant month, with an average temperature varying between 71.6°F (22°C) and 55°F (12.8°C). May marks a rise in the average high-temperature, moving from April's enjoyable 62.2°F (16.8°C) to a pleasant 71.6°F (22°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Warsaw, Illinois, with an average temperature fluctuating between 81°F (27.2°C) and 63.9°F (17.7°C). June's onset is marked by a temperature increase, moving from an agreeable 71.6°F (22°C) in May to a moderately hot 81°F (27.2°C). Weather in June »Weather in July
July, like June, in Warsaw, Illinois, is another warm summer month, with temperature in the range of an average low of 66.6°F (19.2°C) and an average high of 83.7°F (28.7°C). July, on average, is the warmest month, registering a high temperature of 83.7°F (28.7°C) and a low of 66.6°F (19.2°C). July's average heat index is calculated to be a tropical 93.2°F (34°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Warsaw, Illinois, with an average temperature varying between 82.9°F (28.3°C) and 64°F (17.8°C). The advent of August signifies a minor shift to an average high-temperature of a still moderately hot 82.9°F (28.3°C), aligning closely with July. Weather in August »Weather in September
September, the first month of the autumn in Warsaw, is still a warm month, with an average temperature ranging between max 77.5°F (25.3°C) and min 57.7°F (14.3°C). The arrival of September correlates with a minor temperature reduction, down from August's warm 82.9°F (28.3°C) to a still moderately hot 77.5°F (25.3°C). Weather in September »Weather in October
October, like September, in Warsaw, Illinois, is another enjoyable autumn month, with an average temperature fluctuating between 46.2°F (7.9°C) and 63.3°F (17.4°C). As Warsaw enters October, the average high-temperature decreases from the a moderately hot 77.5°F (25.3°C) of September to an enjoyable 63.3°F (17.4°C). Weather in October »Weather in November
November, the last month of the autumn in Warsaw, is also a frosty month, with an average temperature fluctuating between 49.5°F (9.7°C) and 35.2°F (1.8°C). As October shifts into November, a slight alteration in temperatures is observed, with average highs reducing from a comfortable 63.3°F (17.4°C) to a chilly 49.5°F (9.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Warsaw, Illinois, with an average temperature ranging between min 25.9°F (-3.4°C) and max 37.6°F (3.1°C). Transition into December marks a drop in the average high-temperature, moving from a frosty 49.5°F (9.7°C) in November to an icy 37.6°F (3.1°C). Weather in December »Updated: Aug 8, 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
In Warsaw, January is known for its average lowest temperatures, reaching a high of 31.6°F (-0.2°C) and a low of 19.2°F (-7.1°C).
The month with the least rainfall is January, when the rain falls for 5.8 days and typically collects 1.34" (34mm) of precipitation.
In Warsaw, during the entire year, the rain falls for 140.6 days and collects up to 27.72" (704mm) of precipitation.
Months with snowfall are January through April, October through December.
January is the month with the most snowfall. Snow falls for 9.8 days and accumulates 3.94" (100mm) of snow.
Throughout the year, there are 29.4 snowfall days, and 11.3" (287mm) of snow is accumulated.
With an average of 4.3h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
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.
The month with the most rainfall is May, when the rain falls for 17.3 days and typically aggregates up to 3.9" (99mm) of precipitation.
In Warsaw, snow does not fall in May through September.
June and July, with an average relative humidity of 81%, are most humid months in Warsaw.
The month with the longest days is June, with an average of 15h and 0min of daylight.
June through August, with an average maximum UV index of 6, are months with the highest UV index.
July, recognised by an average high temperature of 83.7°F (28.7°C) and a low of 66.6°F (19.2°C), is Warsaw's warmest month.
July has the most sunshine of the year, with an average of 10.4h of sunshine.
With an average relative humidity of 70%, October is the least humid month.
December has the shortest days of the year, with an average of 9h and 24min of daylight.
Average temperature
Warsaw, 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 (31.6°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 (19.2°F).
Average pressure
Warsaw, 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:
29.94"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Warsaw, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.5mph - Average wind speed in October:
9.2mph - Average wind speed in November:
10mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity
Warsaw, IL
The months with the highest relative humidity are June and July (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Warsaw, IL
- Average rainfall in January:
1.34" - Average rainfall in February:
1.46" - Average rainfall in March:
2.36" - Average rainfall in April:
3.19" - Average rainfall in May:
3.9" - Average rainfall in June:
3.35"
- Average rainfall in July:
2.52" - Average rainfall in August:
2.09" - Average rainfall in September:
2.28" - Average rainfall in October:
2.05" - Average rainfall in November:
1.81" - Average rainfall in December:
1.38"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days
Warsaw, IL
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
5.7 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
15.5 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
16.9 days
- Average rainfall days in July:
14.8 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
11.7 days - Average rainfall days in October:
11.5 days - Average rainfall days in November:
9.6 days - Average rainfall days in December:
6.9 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (5.7 days).
Average snowfall
Warsaw, IL
The month with the highest snowfall is January (3.94").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Warsaw, IL
- Average snowfall days in January:
9.8 days - Average snowfall days in February:
7 days - Average snowfall days in March:
3.8 days - Average snowfall days in April:
0.8 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:
1.4 days - Average snowfall days in December:
6.2 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Warsaw, IL
- Average daylight in January:
9h and 42min - 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:
15h and 0min
- Average daylight in July:
14h and 42min - 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: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 18min - Average sunshine in February:
4h and 36min - Average sunshine in March:
6h and 36min - Average sunshine in April:
8h and 12min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
10h and 6min - Average sunshine in September:
9h and 24min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Warsaw, IL
- Average sunshine days in January:
16.8 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
14.2 days - Average sunshine days in April:
12.5 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
10.9 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
17.2 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
17.6 days - Average sunshine days in November:
18.4 days - Average sunshine days in December:
18.6 days
The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is June (10.9 days).
Average UV index
Warsaw, 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
Warsaw, IL
The month with the most cloud cover is January (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility
Warsaw, 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).
