Climate and monthly weather forecastElgin, IL
Climate and monthly weather forecast
The climate of Elgin
Situated in the midwestern region of the United States, Elgin, Illinois, operates under a Dfa climate according to the Köppen climate classification. The Dfa climate encapsulates a humid continental climate, defined by no dry season, with a relatively hot summer.Elgin's annual weather pattern sees a striking difference in temperatures from winter to summer, offering a wide range. January exhibits the coldest temperatures, with low averages sitting around 15.4°F (-9.2°C) and highs reaching up to 27.3°F (-2.6°C). Transitioning into the height of summer, July records the warmest temperatures with an average low of 63.9°F (17.7°C), peaking at a hot 80.6°F (27°C). As the months progress, the temperature gradually decreases into autumn and winter.
Humidity remains relatively stable, fluctuating lightly from 76 to 84%. A consistent pattern characterizes precipitation, with rainfall amounting between 1.14" (29mm) to 3.03" (77mm) across the year. Interaction with significant snowfall is also seen from December to March with peaks reaching 3.62" (92mm) in January.
The most sunshine in Elgin radiates between June and August, recording up to 9.8 hours per day. However, this period also sees the least cloud cover - notable in July with cloud presence at 34% - signifying clearer skies during this period. On the other hand, the winter months record shorter daylight hours and a higher density of cloud coverage.
The best time to visit Elgin
For those who appreciate mild, comfortable temperatures, the best time to visit Elgin would be during the late spring and early summer months. From May to June, the average high temperature hovers between 67.6°F (19.8°C) and 76.6°F (24.8°C). Along with these inviting temperatures, Elgin boasts long days with an average daylight duration exceeding 14.5 to 15.2 hours. Furthermore, the weather during these months is typically sunny, with average sunshine hours per day reaching 8.3 to 9.5 hours.The worst time to visit Elgin
Deciding the worst time for visiting Elgin depends largely on an individual's weather preferences. However, for those who are unenthusiastic about cold weather and limited sunshine, the winter months of December through February could be considered less appealing. During these months, the average high temperature falls between 27.3°F (-2.6°C) and 33.4°F (0.8°C) with lows dipping down to 15.4°F (-9.2°C) in January. Daylight is also significantly reduced, with an average of 9.2 hours in December.Spring weather in Elgin
Spring in Elgin brings a pleasant shift in climate after the chilling winter months. March typically marks the end of the snowy season with a decline to just 1.22" (31mm) of snowfall. As the season progresses from March to May, temperatures rise from an average high of 44.2°F (6.8°C) to 67.6°F (19.8°C). Spring also experiences an extension in daylight hours with an increase from 12 hours to 14.6 hours from March to May.Summer weather in Elgin
Summers in Elgin are characteristically warm with temperature highs between 76.6°F (24.8°C) in June and 80.6°F (27°C) in July. It's also the time of year with the longest days, with daylight hours peaking at 15.2 hours in June. The warmth of the summer months is complemented by a surge in sunshine hours, escalating to an impressive 9.8 hours per day in July.Autumn weather in Elgin
Autumn in Elgin sees a gradual decrease in temperature from the summer highs. September introduces the season with an average high of 73°F (22.8°C), falling by October to a milder 59.9°F (15.5°C). By the end of November, temperatures dip significantly with average highs at 45.1°F (7.3°C). Autumn weather in Elgin also indicates a change in precipitation, with rainfall reducing to an average of 1.14" (29mm) by November.Winter weather in Elgin
Winter in Elgin is defined by cold temperatures and elevated amounts of snowfall. Starting from December, average high temperatures hover around the freezing point, maintaining at 27.3°F (-2.6°C) in January, and rising slightly to 33.4°F (0.8°C) by February. Corresponding low temperatures can reach a shivering 15.4°F (-9.2°C) in January. The season also carries a fair amount of snow, with January seeing the maximum average snowfall of 3.62" (92mm).Weather in January
January marks the coldest month in Elgin, Illinois. High temperatures average at a frosty 27.3°F (-2.6°C), while lows can plummet to 15.4°F (-9.2°C), offering chills that penetrate through even the thickest winter clothing. Weather in January »Weather in February
February continues with substantially cold conditions in Elgin. While there is a slight increase from January's frigid conditions, it is not enough to consider it a breakthrough from winter's grasp. Due to the persistently low temperatures, snowfall remains prevalent, adding to the white wintertime vista. Weather in February »Weather in March
March signifies a transitional month regarding the weather in Elgin. Conditions start to soften with warmer temperatures, which is a welcome change from the biting cold of the previous months. This transition brings occasional light showers and a reduction in snowfall. Weather in March »Weather in April
In April, spring blossoms fully in Elgin, bringing with it milder temperatures and longer hours of daylight. However, the increase in temperature ushers in a high chance of rainfall, with a monthly average of 2.8" (71mm). Interestingly, April boasts the most rainfall days, with a monthly average of 15.9 days. Weather in April »Weather in May
May in Elgin documents a significant shift in weather conditions. The arrival of spring's peak marks a farewell to the cold and mellow welcoming of the warmth. Rainfall persists albeit with reduced frequency, maintaining a stable supply of water for flora and fauna. Weather in May »Weather in June
The weather in June is synonymous with the cheerful arrival of summer in Elgin. Clear skies, warm temperatures, and reduced rainfall characteristics define this period. Reduced humidity cooperates with the rising temperatures, producing a pleasantly warm climate. Weather in June »Weather in July
July underlines the middle of summer in Elgin. On average, this month is the warmest, with temperatures hitting a peak of 80.6°F (27°C). This period promises plenty of sunshine and longer daylight hours, suitable for various outdoor activities. Weather in July »Weather in August
August in Elgin characterizes the tail end of summer. Although temperatures begin to subside compared to July, they continue to thrive in the high range, extending the warmth of the summer season. Rainfall begins to pick up slightly, yet the generally dry conditions persist. Weather in August »Weather in September
September in Elgin observes the onset of fall. As summer dissipates, autumn takes its course with milder temperatures and sporadically raining skies. The vivid green nature backdrop starts to transform into a kaleidoscope of fall colors. Weather in September »Weather in October
October in Elgin translates into the prime of autumn. Signifying a complete departure from summer, the city is cloaked in multi-hued foliage, creating a picturesque setting. Falling temperatures signal a transition towards the colder end of the year. Weather in October »Weather in November
The arrival of November in Elgin suggest the outset of the colder season. Rapid temperature changes gradually push the city towards winter. The first frost usually appears during this month, shaping the path for the upcoming winter. Weather in November »Weather in December
December in Elgin brings with it a climatic close to the year. Winter fully sets in, throttling down temperatures to a low average of 23.4°F (-4.8°C). The month introduces high possibilities of snowfall, leading to striking winter scenes. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Elgin, 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 (27.3°F).
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure
Elgin, 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
Elgin, IL
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.8mph - 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:
7.3mph
- Average wind speed in July:
6.4mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.7mph - Average wind speed in November:
9.4mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Elgin, IL
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall
Elgin, IL
- Average rainfall in January:
1.26" - Average rainfall in February:
1.34" - Average rainfall in March:
1.38" - Average rainfall in April:
2.8" - Average rainfall in May:
2.95" - Average rainfall in June:
3.03"
- Average rainfall in July:
2.64" - Average rainfall in August:
2.68" - Average rainfall in September:
1.69" - Average rainfall in October:
2.01" - Average rainfall in November:
1.14" - Average rainfall in December:
1.1"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is December (1.1").
Average rainfall days
Elgin, IL
- Average rainfall days in January:
5.9 days - Average rainfall days in February:
4.9 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
15.9 days - Average rainfall days in May:
17.4 days - Average rainfall days in June:
16.9 days
- Average rainfall days in July:
17.8 days - Average rainfall days in August:
17 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
13.3 days - Average rainfall days in November:
8.2 days - Average rainfall days in December:
8.1 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is February (4.9 days).
Average snowfall
Elgin, IL
- Average snowfall in January:
3.62" - Average snowfall in February:
3.11" - Average snowfall in March:
1.22" - Average snowfall in April:
1.89" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is January (3.62").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Elgin, IL
- Average snowfall days in January:
12.9 days - Average snowfall days in February:
11 days - Average snowfall days in March:
6.8 days - Average snowfall days in April:
2.1 days - Average snowfall days in May:
0.1 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:
3.5 days - Average snowfall days in December:
10.5 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Elgin, 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 36min - Average sunshine in February:
3h and 48min - Average sunshine in March:
5h and 54min - Average sunshine in April:
7h and 24min - Average sunshine in May:
8h and 18min - Average sunshine in June:
9h and 30min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 36min - Average sunshine in September:
8h and 42min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 0min - Average sunshine in December:
3h and 54min
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 36min).
Average sunshine days
Elgin, IL
- Average sunshine days in January:
14.2 days - Average sunshine days in February:
12 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
10.7 days - Average sunshine days in May:
10.5 days - Average sunshine days in June:
10.1 days
- Average sunshine days in July:
10.2 days - Average sunshine days in August:
10.3 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
14.7 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
14.6 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index
Elgin, 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
Elgin, IL
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility
Elgin, IL
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).





