Climate and monthly weather forecastBarrington, IL
Climate and monthly weather forecast
The climate of Barrington
Positioned within the humid continental zone per Köppen's climate classification, Barrington, Illinois, upholds a consistent pattern of mostly hot, humid summers and cold, chilling winters. Throughout the course of the year, a vast range of weather elements display perceivable variations, defining the town's distinct seasons.Analyzing the overall weather throughout each year, temperature readings climb from a low average of 16.3°F (-8.7°C) in January to a peak of 80.6°F (27°C) in July. This extreme fluctuation illustrates the stark contrast between the intensely cold winters and the heat-laden summers of Barrington. The trend in rainfall reveals another key aspect of the local weather, with the lowest monthly average at 1.61" (41mm) in November and the highest at 4.13" (105mm) in June. Intervals of relative humidity keep mostly stable throughout the year, deviating slightly from the low 70s to mid 80s, signifying a predominant moistness in the air.
Uniquely, Barrington experiences the most snow during the winter months of January and February, with accumulations of 6.14" (156mm) and 6.22" (158mm) respectively. The hottest months, typically July and August, don't register any snowfall, naturally due to the elevated temperatures. Moreover, January and December bring the least sunshine hours from 9.2 hours to 9.5 hours per day, whereas June offers the most at 15.2 hours.
The best time to visit Barrington
With moderate temperatures and manageable rainfall, the optimal time to tour Barrington falls between May and June. An average temperature range between 54.3°F (12.4°C) and 75.9°F (24.4°C) during these months offers comfortable conditions for outdoor exploration. Additionally, the longest daylight duration, peaking at 15.2 hours in June, provides ample sunlight to enjoy the charming sceneries and cultural attractions.The worst time to visit Barrington
The less favorable periods for travel to Barrington are the chilly winter months of December, January, and February. With the lowest average temperatures tumbling to 16.3°F (-8.7°C) in January and snowfall mounting up to 6.22" (158mm) in February, mobility may be significantly constrained due to the severe weather conditions these months present.Spring weather in Barrington
Spring commences in Barrington with an average March temperature of 43.5°F (6.4°C), escalating to 54.3°F (12.4°C) in April and reaching 66.4°F (19.1°C) in May. Concurrently, rainfall measures start at an average of 2.01" (51mm) in March before peaking at 4.06" (103mm) in May. Sunshine instructions note a rise from 6.1 hours in March to 8.5 hours per day in May, indicating progressively longer and sun-filled days as spring advances.Summer weather in Barrington
Summertime in Barrington presents climate parameters peaking at various intervals. The hottest months, July and August, bring maximum average temperatures that reach up to 80.6°F (27°C) and 79.3°F (26.3°C) respectively. June records the highest average rainfall of 4.13" (105mm) in the year. The maximum daylight duration observed is 15.2 hours in June, offering extended hours for outdoor activities.Autumn weather in Barrington
Autumn in Barrington witnesses a downtrend in temperatures from 72.9°F (22.7°C) in September to 45.1°F (7.3°C) in November. Rainfall declines as well during this period, from 2.2" (56mm) in September to 1.61" (41mm) in November. Simultaneously, sunlight hours lessen from 9 hours per day in September to 5.1 hours in November, amounting to the less well-lit days as winter approaches.Winter weather in Barrington
Winter in Barrington is predominantly chilly, as average low temperatures drop to 23.9°F (-4.5°C) in December and plunge further to 16.3°F (-8.7°C) in January. An average snowfall of 6.14" (156mm) in January reflects the intensity of the winter weather. Concurrently, the average daylight duration falls to 9.2 hours in December, setting a relatively dimmer atmosphere, typical of the cold winter months.Weather in January
Certainly, the weather conditions in Barrington, Illinois in January make it the coldest month, and it is usually characterized by significant snowfall and brisk temperatures. On average, the town experiences 6.14" (156mm) of snow on the ground and 15.5 snowfall days. Weather in January »Weather in February
Making a comparison between February and the preceding month, February in Barrington, Illinois, provides more opportunity to catch some rays despite being a generally snowy month. The overall weather scenario sees a slight increase in temperatures, and the snowfall decreases from the January figure to 6.22" (158mm), though it still affects around 12.8 days of the month. Weather in February »Weather in March
The weather in March experiences a transition from winter to spring, resulting in lower snow levels and moderately high temperatures compared to the winter months of January and February. The snowfall reduces dramatically to 2.17" (55mm) affecting approximately 7.8 days of the month. Weather in March »Weather in April
In April, Barrington, Illinois welcomes the full bloom of spring, bringing along lighter precipitation trends, lesser snowfall, and increasing daylight hours. April marks the last month of the year to witness any snowfall with a light dusting of 2.56" (65mm) affecting only 2.3 days. Weather in April »Weather in May
May in Barrington, Illinois is a month full of warmth, with temperatures continuing to rise, and the town completely devoid of snowfall for the year. The town enjoys the first traces of summer with the mercury level steadily climbing, and rainfall saw an increment to 4.06" (103mm). Weather in May »Weather in June
The month of June in Barrington, Illinois signals the start of summer with its high temperatures and increased daylight hours. The town experiences the highest increase in daylight hours throughout the year reaching 15.2 hours. Despite the uptick in temperature, June holds ample greenery and clear blue skies, which make it an undoubtedly appealing time of the year. Weather in June »Weather in July
July, the peak of summer season in Barrington, bears the culmination of high temperatures and extended daylight hours. Recording the highest temperatures of the year, July sees averages from 64.9°F (18.3°C) to 80.6°F (27°C), affirming it as the hottest month. Weather in July »Weather in August
August carries forward the high-temperature trend from July, making it another hot summer month in Barrington, Illinois. Weather conditions in this month are a bit cooler as compared to July, with an average temperature range from 63.5°F (17.5°C) to 79.3°F (26.3°C). Weather in August »Weather in September
The arrival of September brings a marked coolness to Barrington, Illinois, bidding farewell to the harsh summer sun and welcoming the pleasant arrival of fall. The rainfall sees a decline to 2.2" (56mm), suggesting some dryness in the air. Weather in September »Weather in October
In October, Barrington, Illinois, increasingly feels the coolness of impending winter, but not before basking in the beautiful colors of fall. The fall foliage in October undergoes a breathtaking transformation, and the month becomes a blend of warm days and cool nights. Weather in October »Weather in November
November in Barrington, Illinois sees the transition to winter with lower temperatures and return of snowfall at 1.97" (50mm) affecting 4.7 days of the month. The days start to get shorter with a decline in daylight to 9.8 hours, which is still higher than the succeeding month, December. Weather in November »Weather in December
December wraps up the year in Barrington, Illinois with traditionally winter weather conditions, characterized by cold temperatures and significant amount of snowfall at 3.46" (88mm) experienced over 11.7 days. Dolling up under a white blanket of snow, December in this town turns into a picturesque sight. 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
The month of January, characterized by an average high of 27.7°F (-2.4°C) and a low of 16.3°F (-8.7°C), is recognized as the coldest in Barrington, Illinois.
January and February, with an average relative humidity of 83%, are most humid months in Barrington.
In Barrington, Illinois, during the entire year, the rain falls for 163.1 days and collects up to 32.24" (819mm) of precipitation.
Months with snowfall in Barrington are January through May, October through December.
In Barrington, Illinois, during the entire year, snow falls for 55.5 days and aggregates up to 22.95" (583mm) of snow.
January has the least sunshine of the year in Barrington, with an average of 3.7h of sunshine.
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Barrington.
February is the month with the most snowfall in Barrington. Snow falls for 12.8 days and accumulates 6.22" (158mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Barrington, 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.
June is the month with the most rainfall in Barrington, Illinois. Rain falls for 18.8 days and accumulates 4.13" (105mm) of precipitation.
June through September are months without snowfall in Barrington.
June has the longest days of the year, with an average of 15h and 12min of daylight.
Barrington's warmest month, July, generally records average temperatures ranging from a high of 80.6°F (27°C) to a low of 64.9°F (18.3°C).
July and August, with an average of 10.1h of sunshine, are months with the most sunshine.
July and August, with an average maximum UV index of 6, are months with the highest UV index.
The least humid month is October, with an average relative humidity of 74%.
The month with the least rainfall in Barrington is November, when the rain falls for 9.4 days and typically collects 1.61" (41mm) of precipitation.
With an average of 9h and 12min of daylight, December has the shortest days of the year in Barrington.
Average temperature
Barrington, IL
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.7°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure
Barrington, 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"Hg - Average pressure in November:
30.09"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
Barrington, IL
- Average wind speed in January:
10.1mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.5mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.3mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Barrington, IL
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Barrington, IL
- Average rainfall in January:
1.77" - Average rainfall in February:
1.85" - Average rainfall in March:
2.01" - Average rainfall in April:
3.86" - Average rainfall in May:
4.06" - Average rainfall in June:
4.13"
- Average rainfall in July:
3.27" - Average rainfall in August:
3.11" - Average rainfall in September:
2.2" - Average rainfall in October:
2.72" - Average rainfall in November:
1.61" - Average rainfall in December:
1.65"
The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is November (1.61").
Average rainfall days
Barrington, IL
- Average rainfall days in January:
6.7 days - Average rainfall days in February:
5.7 days - Average rainfall days in March:
13 days - Average rainfall days in April:
17.2 days - Average rainfall days in May:
20 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
18.6 days - Average rainfall days in August:
16.9 days - Average rainfall days in September:
13.4 days - Average rainfall days in October:
14.6 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
8.8 days
The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (5.7 days).
Average snowfall
Barrington, IL
- Average snowfall in January:
6.14" - Average snowfall in February:
6.22" - Average snowfall in March:
2.17" - Average snowfall in April:
2.56" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Barrington, IL
- Average snowfall days in January:
15.5 days - Average snowfall days in February:
12.8 days - Average snowfall days in March:
7.8 days - Average snowfall days in April:
2.3 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:
0.5 days - Average snowfall days in November:
4.7 days - Average snowfall days in December:
11.7 days
The month with the highest number of snowfall days is January (15.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Barrington, IL
- Average daylight in January:
9h and 30min - 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 42min - Average sunshine in February:
3h and 54min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 30min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
10h and 6min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Barrington, IL
- Average sunshine days in January:
12.2 days - Average sunshine days in February:
10.5 days - Average sunshine days in March:
12.5 days - Average sunshine days in April:
9 days - Average sunshine days in May:
8.5 days - Average sunshine days in June:
8.4 days
- Average sunshine days in July:
9.3 days - Average sunshine days in August:
11.2 days - Average sunshine days in September:
13.4 days - Average sunshine days in October:
13.7 days - Average sunshine days in November:
15.5 days - Average sunshine days in December:
13.9 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is June (8.4 days).
Average UV index
Barrington, IL
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Barrington, IL
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 31).
Average visibility
Barrington, IL
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
