Climate and monthly weather forecastParis, IL
Climate and monthly weather forecast
The climate of Paris
Paris, Illinois, USA, occupies a geographical position marked by a Humid subtropical climate, identified as Cfa according to the Köppen climate classification. This classification signifies a typical presence of no dry season, coupled with hot and muggy summers. The data reveals a weather pattern characterized by noteworthy seasonal variations throughout the year.Temperature fluctuations are quite evident, with peak heat observed in July reaching up to 82.4°F (28°C) and the coldest month being January, where the mercury dips to a low of 21.7°F (-5.7°C). Significant shifts are also seen in rainfall levels, ranging from a high of 2.76" (70mm) in April down to 0.94" (24mm) in February. A relative humidity level hovering around 80% is a common feature across months, reaching a high of 83% in July and dropping down to 71% in October.
Snowfall primarily affects the winter months with 1.61" (41mm) in December and reducing down to 1.18" (30mm) in January. Days with sunshine show a slight oscillation from 12.4 in June to 16.3 in February. Interestingly, the UV index charts a noticeable transition across seasons, moving from a low of 2 in winter, to a high of 6 during peak summers.
The best time to visit Paris
Contrasting climate conditions throughout the year in Paris, Illinois, emphasize specific times as ideal for a visit. The turning of the seasons in late May and early June brings about a blossoming of the region. This period awards visitors with a comfortable weather with temperatures ranging from 62.2°F (16.8°C) to 72.7°F (22.6°C). Moreover, the months of May and June also invite the largest number of daylight hours, between 14.4 hours and 14.9 hours respectively. The UV index during these months is a moderate 5 to 6, not posing any severe threat to exposed skin.The worst time to visit Paris
On the flip side of the weather spectrum, the cold winter months from December to February pose a distinct challenge for visitors. During this period, the region experiences the lowest recorded temperatures, with the mercury dropping to 21.7°F (-5.7°C) in January. The intertwining of a high relative humidity of 80% and a high chance of snowfall during these months amplifies the cold, thus reducing the overall comfort level. Furthermore, the daylight hours shrink down to 9.4 to 10.7 hours, constraining the time for outdoor activities.Spring weather in Paris
The arrival of spring from March to May is marked by a steady, moderate temperature rise ranging from 50.4°F (10.2°C) to 72.7°F (22.6°C). This season also sees a substantial increase in rainfall from 1.38" (35mm) in March to a peak of 2.76" (70mm) in April. Consequently, the humidity undergoes an upward shift, rising from 76% in March to 80% in May. However, the increment in sunshine hours, spanning 12 to 14.4 hours, accompanies these climatic changes, thereby providing ample warmth and sunlight to engage in outdoor activities.Summer weather in Paris
During the summer months from June to August, Paris experiences its highest temperatures. June sees the mercury spike to 80.6°F (27°C), peaking at 82.4°F (28°C) in July before stabilizing at 81.1°F (27.3°C) in August. Despite the heat, this period witnesses a decrease in humidity, dropping from 79% in June to 76% in August. Interestingly, rainfall shows a decreasing trend over these months, from 2.13" (54mm) in June to 1.54" (39mm) in August. The UV index hovering at a high of 6 is a recurring characteristic of this sunny season.Autumn weather in Paris
The autumnal months of September to November in Paris come with a pleasant decline in temperatures, starting from 77.2°F (25.1°C) in September down to a crisp 49.6°F (9.8°C) in November. During this period, rainfall decreases consistently from 1.1" (28mm) in September to 1.06" (27mm) in November. In contrast, relative humidity rises from 76% to 74% from September to November respectively. This transition season also marks a reduction in sunlight hours from 12.4 hours in September to 10 hours in November, contributing to the cool temperature and serene atmosphere.Winter weather in Paris
The winter months from December to February in Paris are typically cold and frosty. The monthly average low temperature descends to 21.7°F (-5.7°C) in January, with the highs hitting only up to 39°F (3.9°C) in December. This season is characterized by the highest levels of snowfall, approximately 1.61" (41mm) in December, and decreasing to 1.18" (30mm) in January. The daylight hours are the lowest during this season, dipping to a mere 9.4 hours in December. Despite the cold, the city's tranquil winter charm does offer a unique allure for those who venture to experience it.Weather in January
As winter settles over Paris, Illinois, a frosty chill dominates the landscape. January stands as the coldest period of the year with a low temperature of 21.7°F (-5.7°C). This month's weather contrasts starkly with the warm sunshine of December, offering a solid blanket of white that grips the ground. Weather in January »Weather in February
As February marks the last leg of winter, the city witnesses dwindling snowfall. However, February continues the trend of freezing temperatures, albeit slightly higher than January, averaging from 25.5°F (-3.6°C) to 38.8°F (3.8°C). Weather in February »Weather in March
March symbolizes spring's advent, bringing milder weather to Paris, Illinois. As temperatures climb to a high of 50.4°F (10.2°C), the city begins to thaw. March stands distinct with higher rainfall quantities than February, creating vibrantly verdant landscapes. Weather in March »Weather in April
April in Paris, Illinois, celebrates the true arrival of spring. Warmer days with temperatures peaking at 62.2°F (16.8°C) replace the chill, but the city bears the brunt of increased precipitation, marking the peak rainfall for the year at 2.76" (70mm). Weather in April »Weather in May
May brings warmth to Paris, Illinois, paving the way for summer. As the mercury surges to an average high of 72.7°F (22.6°C), residents shed their winter gear. The marked warming of May after the rain-soaked April promises longer sunny days, perfect for outdoor activities. Weather in May »Weather in June
June in Paris, Illinois, means the official start of summer. The weather witnesses a noticeable shift, with maximum temperatures hitting a sweltering 80.6°F (27°C). Residents and visitors take advantage of these hot conditions, seeking respite in the city's numerous parks and pools. Weather in June »Weather in July
At the height of summer in July, Paris, Illinois, records the highest average temperature of the year, as high as 82.4°F (28°C). The city basks in the blazing sun with relatively less rainfall, making this the ideal period for water-based activities. Weather in July »Weather in August
August absolves July's relentless heat, bringing milder weather to Paris, Illinois. The mercury slightly drops but remains warm with average temperatures hovering around 81.1°F (27.3°C). Paris's residents transition from the heat of the summer period to the milder pre-fall season. Weather in August »Weather in September
September in Paris, Illinois, signals the onset of autumn. A noticeable drop to an average high of 77.2°F (25.1°C) is experienced, offering respite from August's heat. September's milder weather fosters a welcoming environment for residents and tourists alike with a medley of warm and cool days. Weather in September »Weather in October
As autumn firmly grips Paris, Illinois, October brings cool weather and vibrant fall colors. October breaks away from September's still warm days, calling for sweaters and warm beverages. The climate, flourishing in its freshness, turns mildly chilly with crisp morning air. Weather in October »Weather in November
November arrives with a significant dip in temperature, bringing the city to the threshold of winter. In sharp contrast to October's vivid hues, the scenery acquires a starkness with temperature plunging to an average low of 36°F (2.2°C). Weather in November »Weather in December
December announces winter's arrival in Paris, Illinois, with a drop in temperature to a chilly 39°F (3.9°C). Channeling the city's festive spirit, the cold December days bring the joy of snowfall and holiday cheer. The bitter cold, contrasting starkly with November's moderate coolness, elicits visions of cozy fireplaces and warm drinks. Weather in December »Updated: Jun 8, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
With average temperatures fluctuating between a high of 33.8°F (1°C) and a low of 21.7°F (-5.7°C), January stands out as the coldest month.
Throughout the year, in Paris, there are 133.4 rainfall days, and 19.49" (495mm) of precipitation is accumulated.
Months with snowfall are January through April, November and December.
Throughout the year, there are 23.7 snowfall days, and 5.2" (132mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 4h of sunshine.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Paris.
February is the month with the least rainfall. Rain falls for 6.3 days and accumulates 0.94" (24mm) 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.
April is the month with the most rainfall. Rain falls for 13.6 days and accumulates 2.76" (70mm) of precipitation.
May through October are months without snowfall.
With an average of 14h and 54min of daylight, June has the longest days of the year.
The month with the most sunshine is June, with an average of 10.3h of sunshine.
June and July, with an average maximum UV index of 6, are months with the highest UV index.
July, noted for its average high-temperature of 82.4°F (28°C) and an average low-temperature of 65.8°F (18.8°C), is considered the warmest month.
With an average relative humidity of 83%, July is the most humid month.
October is the least humid month, with an average relative humidity of 71%.
The month with the most snowfall is December, when snow falls for 4.8 days and typically aggregates up to 1.61" (41mm) of snow.
The month with the shortest days in Paris is December, with an average of 9h and 24min of daylight.
Average temperature
Paris, IL
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (33.8°F).
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure
Paris, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.11"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:
29.98"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 (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Paris, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.4mph - Average wind speed in June:
7.3mph
- Average wind speed in July:
6.1mph - Average wind speed in August:
6.1mph - Average wind speed in September:
6.9mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.5mph
The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity
Paris, IL
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Paris, IL
- Average rainfall in January:
1.34" - Average rainfall in February:
0.94" - Average rainfall in March:
1.38" - Average rainfall in April:
2.76" - Average rainfall in May:
2.4" - Average rainfall in June:
2.13"
- Average rainfall in July:
1.89" - Average rainfall in August:
1.54" - Average rainfall in September:
1.1" - Average rainfall in October:
1.69" - Average rainfall in November:
1.06" - Average rainfall in December:
1.26"
The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is February (0.94").
Average rainfall days
Paris, IL
- Average rainfall days in January:
6.9 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
13.7 days
- Average rainfall days in July:
15.6 days - Average rainfall days in August:
12.4 days - Average rainfall days in September:
11 days - Average rainfall days in October:
9.9 days - Average rainfall days in November:
7.6 days - Average rainfall days in December:
8.3 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (6.3 days).
Average snowfall
Paris, IL
The month with the highest snowfall is December (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Paris, IL
- Average snowfall days in January:
6.9 days - Average snowfall days in February:
6.5 days - Average snowfall days in March:
3.3 days - Average snowfall days in April:
0.5 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:
1.6 days - Average snowfall days in December:
4.8 days
The month with the highest number of snowfall days is January (6.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Paris, 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:
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 0min - Average sunshine in February:
4h and 18min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 12min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 6min - Average sunshine in September:
9h and 0min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 24min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Paris, IL
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
15.5 days - Average sunshine days in April:
13.8 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
12.4 days
- Average sunshine days in July:
11.8 days - Average sunshine days in August:
14.9 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
18.6 days - Average sunshine days in November:
20 days - Average sunshine days in December:
19.2 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (11.3 days).
Average UV index
Paris, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Paris, IL
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are June, August and September (Cloud cover 31).
Average visibility
Paris, 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).
