Climate and monthly weather forecastAurora, IL
Climate and monthly weather forecast
The climate of Aurora
Aurora, Illinois, USA, lies within the dominion of a Humid Continental climate, as classified by the Köppen system, specifically Dfa. This is characterized by no dry season and a hot summer. Aurora experiences a wide range of weather conditions throughout the year, from hot and humid summers to cold and snowy winters.A full spectrum of meteorological phenomena typify Aurora. The highest temperatures recorded typically peak at 81°F (27.2°C) in July, while January bears the brunt of the cold with lowest temperatures averaging around 16°F (-8.9°C). Humidity levels remain fairly consistent throughout the year, with a marginal increase during the warmer months from June to August.
Precipitation varies throughout the year, with the wettest months observed between April and August, the peak of which is seen in May with an average rainfall of 1.97" (50mm). The city sees minimal rainfall during February with merely 0.51" (13mm) falling on average. The number of rainfall days also witness a rise during the warmer months, peaking at 15.5 days in June.
Snowfall is primarily concentrated in winter months, with January seeing maximum deposition of around 1.69" (43mm). Sunshine hours amp up from spring onwards with an apex at 15.2 hours in June and a gradual decline post the peak of summer.
The best time to visit Aurora
Considering the prevailing temperatures, rainfall, and daylight hours, the ideal time to make a trip to Aurora would be during the late spring to early summer period. During these months, ranging from May to June, visitors can enjoy daytime temperatures rising up to 69.1°F (20.6°C) to 78.1°F (25.6°C), suitable for outdoor activities.Additionally, these months offer longer sunshine hours, with an average of 14.6 to 15.2 hours a day. A brisk breeze is often present, keeping the conditions pleasant. However, it is also worth noting that these months do receive the highest rainfall of the year, with an average of 1.97 to 1.73" (44mm) of precipitation.
The worst time to visit Aurora
A trip to Aurora during the winter months, particularly in January, may be quite difficult due to colder temperatures and snowfall. January's low temperatures dip down to 16°F (-8.9°C), while partial snowfall amounting to 1.69" (43mm) is common.Alongside, the daylight hours are shortest during this month, resting at 9.6 hours on average. This reduction in daylight hours combined with the likelihood of snowfall can limit outdoor activities and sightseeing opportunities.
Spring weather in Aurora
Spring in Aurora begins on a chilly note with temperatures in March ranging from 27.9°F (-2.3°C) to 45.1°F (7.3°C). As the season progresses, the temperatures rise, with April experiencing a range between 56.8°F (13.8°C) and 30.7°F (-0.7°C) while May sees temperatures from 69.1°F (20.6°C) to 51.6°F (10.9°C).The daylight hours during spring increase steadily with each month, making it a delightful time for outdoor activities. Rainfall during this season also increases, with May witnessing the highest average monthly precipitation.
Summer weather in Aurora
Aurora's summer months of June through August are characteristically hot. June demonstrates a high temperature average of 78.1°F (25.6°C), which further rise to 81°F (27.2°C) and 79.3°F (26.3°C) in July and August respectively.Aurora enjoys ample sunlight during these months, ranging from 14.9 to 15.2 daylight hours. However, the summer season is relatively humid with the highest average monthly humidity of 83% recorded in July.
Autumn weather in Aurora
Autumn brings a pleasant drop in temperature in Aurora with ranges from a high of 73.6°F (23.1°C) to a low of 56.3°F (13.5°C) in September, and further falling to 60.4°F (15.8°C) to 45°F (7.2°C) in October.Rainfall during this season is lower than the summer months. November is the driest month of the autumn season with a recorded precipitation of 0.55" (14mm). The daylight hours, however, do decrease from 13.8 hours in September to 9.8 hours in November.
Winter weather in Aurora
Winter in Aurora witnesses the coldest temperatures of the year. December faces a temperature spectrum between 34.2°F (1.2°C) and 23.9°F (-4.5°C). January records the lowest temperatures in the range of 27.9°F (-2.3°C) to 16°F (-8.9°C), and February moderates to a range of 32°F (0°C) to 19.2°F (-7.1°C).The daylight hours during winter are significantly reduced with January experiencing the least daylight of 9.6 hours. As for snowfall, January witnesses the highest average of 1.69" (43mm), making it the snowiest month of the year.
Weather in January
As the winter progresses from December, January in Aurora, Illinois encounters a blend of low temperatures and high humidity. The daylight hours are still relatively short, leading to long, chilly nights. Notably, January experiences the coldest low temperatures of the year which drop down to 16°F (-8.9°C). Weather in January »Weather in February
In contrast to January, the weather in Aurora during February shows a slight rise in temperatures. Despite the cooler conditions slowly shifting, ice and frost remain present with snowfall still evident. Compared to the previous month, the daily sunshine and daylight hours increase, hinting at the forthcoming spring. Weather in February »Weather in March
March brings a noticeable change in Aurora's weather, introducing the transition from winter to spring. The temperature begins to climb, providing a little relief from the biting cold experienced in the past months. Though cold gusts of wind remain, the average snowfall drops significantly to mere 0.47" (12mm). Weather in March »Weather in April
In April, Aurora, Illinois experiences an evident shift in weather towards milder temperatures and higher humidity. The remnants of frost finally disappear, making way for more pleasant weather. The most observable change in this month is a rise in rainfall levels, reaching a peak of 1.26" (32mm). Weather in April »Weather in May
May welcomes a dramatic change in Aurora's weather, characterized by nearly double the rainfall of April. The rains witness an upsurge, with an insignificant decrease in rainy days. Temperatures also rise notably, signaling the approach of typical summer weather. Weather in May »Weather in June
As summer officially begins, June witnesses Aurora's highest temperatures. The city basks in an average of 15.2 hours of daylight, providing ample opportunity to enjoy summer activities. Despite the summer heatwave, June still experiences an average of 1.73" (44mm) of rainfall. Weather in June »Weather in July
July's weather in Aurora, Illinois tends to be hot and humid, presenting peak summer conditions. The high temperatures hover around a sweltering 81°F (27.2°C) making it the hottest month. The UV index also spikes to a yearly high of six, warning of the sun’s intense rays. Weather in July »Weather in August
August sees a slight decline in Aurora's temperature, providing some relief to the residents from July's intense heat. The weather remains characteristically humid, consistent with the typical Midwest summer. With the UV index dropping to five, the sun's intensity reduces marginally. Weather in August »Weather in September
September marks the transition from summer to autumn in Aurora, Illinois. The average temperature begins to dip, alongside a decrease in daylight hours. The humidity also sees a slight reduction, but the rainfall remains stable at 0.87" (22mm). Weather in September »Weather in October
October in Aurora welcomes the full onset of fall season. The temperature continues to cool down and a decrease in humidity provides a respite from the moist summer air. There is a notable change in rainfall, marked by a slight increase to 0.98" (25mm), making it a moderately rainy month. Weather in October »Weather in November
November sees a significant plunge in Aurora's temperatures, marking the onset of the cold season. The rain ceases to a significant extent, whereas the snowfall sees a slight increase. Shorter days and reduced sunshine hours further reinstate the advent of winter. Weather in November »Weather in December
December in Aurora, Illinois witnesses a full swing of winter with freezing temperatures. Compared to November, daylight hours decrease even further, contributing to the cold weather. Snowfall sees a significant increase, reaching an average of 0.55" (14mm). 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 the coldest month of the year in Aurora, registering average temperatures as high as 27.9°F (-2.3°C) and as low as 16°F (-8.9°C).
January, February and July, with an average relative humidity of 83%, are most humid months.
In Aurora, Illinois, during the entire year, the rain falls for 120.4 days and collects up to 12.32" (313mm) of precipitation.
January through April, October through December are months with snowfall.
January is the month with the most snowfall in Aurora. Snow falls for 9.1 days and accumulates 1.69" (43mm) of snow.
In Aurora, during the entire year, snow falls for 32.3 days and aggregates up to 4.84" (123mm) of snow.
The month with the least sunshine in Aurora is January, with an average of 3.8h of sunshine.
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
The month with the least rainfall in Aurora is February, when the rain falls for 5 days and typically collects 0.51" (13mm) of precipitation.
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 in Aurora is May, when the rain falls for 14.7 days and typically aggregates up to 1.97" (50mm) of precipitation.
In Aurora, snow does not fall in May through September.
The month with the longest days in Aurora is June, with an average of 15h and 12min of daylight.
The months with the highest UV index are June and July, with an average maximum UV index of 6.
July is the month when Aurora sees the average highest temperatures, with a high of 81°F (27.2°C) and a low of 64°F (17.8°C).
July has the most sunshine of the year, with an average of 9.8h of sunshine.
October is the least humid month in Aurora, Illinois, with an average relative humidity of 74%.
December has the shortest days of the year in Aurora, Illinois, with an average of 9h and 12min of daylight.
Average temperature
Aurora, IL
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.9°F).
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure
Aurora, 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:
30.09"Hg - Average pressure in December:
30.1"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
Aurora, IL
- Average wind speed in January:
9.8mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.4mph - Average wind speed in April:
9.7mph - Average wind speed in May:
8.2mph - Average wind speed in June:
7.1mph
- Average wind speed in July:
6.3mph - Average wind speed in August:
6mph - Average wind speed in September:
7mph - Average wind speed in October:
8.6mph - Average wind speed in November:
9.3mph - Average wind speed in December:
9.1mph
The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Aurora, IL
The months with the highest relative humidity are January, February and July (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Aurora, IL
- Average rainfall in January:
0.59" - Average rainfall in February:
0.51" - Average rainfall in March:
0.67" - Average rainfall in April:
1.26" - Average rainfall in May:
1.97" - Average rainfall in June:
1.73"
- Average rainfall in July:
1.54" - Average rainfall in August:
1.06" - Average rainfall in September:
0.87" - Average rainfall in October:
0.98" - Average rainfall in November:
0.55" - Average rainfall in December:
0.59"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days
Aurora, IL
- Average rainfall days in January:
4.3 days - Average rainfall days in February:
5 days - Average rainfall days in March:
10.4 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
14.7 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
14.6 days - Average rainfall days in August:
12.5 days - Average rainfall days in September:
8.8 days - Average rainfall days in October:
9.2 days - Average rainfall days in November:
6.1 days - Average rainfall days in December:
6 days
The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is January (4.3 days).
Average snowfall
Aurora, IL
The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Aurora, IL
- Average snowfall days in January:
9.1 days - Average snowfall days in February:
8.5 days - Average snowfall days in March:
4.9 days - Average snowfall days in April:
1.2 days - Average snowfall days in May:
0.2 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:
0.3 days - Average snowfall days in November:
1.7 days - Average snowfall days in December:
6.4 days
The month with the highest number of snowfall days is January (9.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Aurora, 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 54min - 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 48min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 12min - Average sunshine in April:
7h and 36min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 48min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 12min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Aurora, IL
- Average sunshine days in January:
19.6 days - Average sunshine days in February:
17.2 days - Average sunshine days in March:
16.8 days - Average sunshine days in April:
13.6 days - Average sunshine days in May:
13.5 days - Average sunshine days in June:
11.4 days
- Average sunshine days in July:
11.7 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
19.3 days - Average sunshine days in October:
20.1 days - Average sunshine days in November:
20.4 days - Average sunshine days in December:
20.5 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is June (11.4 days).
Average UV index
Aurora, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Aurora, IL
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility
Aurora, IL
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
