Climate and monthly weather forecastSpring Bay, IL
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Spring Bay, Illinois, with an average temperature varying between 29.8°F (-1.2°C) and 18.1°F (-7.7°C). Spring Bay's January weather, with an average high temperature of 29.8°F (-1.2°C) and an average low temperature of 18.1°F (-7.7°C), tends to be the coldest of the year. Weather in January »Weather in February
The last month of the winter, February, is an icy month in Spring Bay, Illinois, with temperature in the range of an average low of 21.7°F (-5.7°C) and an average high of 35.2°F (1.8°C). With the onset of February, Spring Bay's average high-temperature sees a modest rise, moving from January's freezing cold 29.8°F (-1.2°C) to a cold 35.2°F (1.8°C). Weather in February »Weather in March
March, the first month of the spring in Spring Bay, is a chilly month, with an average temperature fluctuating between 33.3°F (0.7°C) and 48.2°F (9°C). March's arrival coincides with a rise in the average high-temperature, moving from February's cold 35.2°F (1.8°C) to a chilly 48.2°F (9°C). Weather in March »Weather in April
April is a refreshing spring month in Spring Bay, Illinois, with an average temperature fluctuating between 43.9°F (6.6°C) and 60.1°F (15.6°C). The shift into April brings an increase in the average high-temperature, moving from a chilly 48.2°F (9°C) in March to a moderate 60.1°F (15.6°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Spring Bay, Illinois, with an average temperature varying between 71.2°F (21.8°C) and 54.1°F (12.3°C). With the arrival of May, the average high-temperature transitions from a moderate 60.1°F (15.6°C) in April to an agreeable 71.2°F (21.8°C). Weather in May »Weather in June
June, the first month of the summer in Spring Bay, is a warm month, with an average temperature varying between 62.2°F (16.8°C) and 79.3°F (26.3°C). A subtle rise in the average high-temperature is observed during June, adjusting from an agreeable 71.2°F (21.8°C) in May to a warm 79.3°F (26.3°C). Weather in June »Weather in July
July, like June, in Spring Bay, Illinois, is another warm summer month, with an average temperature fluctuating between 64.8°F (18.2°C) and 81.9°F (27.7°C). Spring Bay, Illinois, notes the warmest temperatures in July, with a high average of 81.9°F (27.7°C) and a low of 64.8°F (18.2°C). The heat index in July is estimated at a hot 89.6°F (32°C). Weather in July »Weather in August
August, the last month of the summer in Spring Bay, is another warm month, with temperature in the range of an average high of 80.4°F (26.9°C) and an average low of 63°F (17.2°C). A minor adjustment in Spring Bay's average high-temperature is noted with the start of August, touching a still moderately hot 80.4°F (26.9°C) from July's 81.9°F (27.7°C). Weather in August »Weather in September
September, the first month of the autumn in Spring Bay, is still a warm month, with an average temperature varying between 75.9°F (24.4°C) and 56.7°F (13.7°C). September's average high-temperature stands at a still moderately hot 75.9°F (24.4°C), showing little deviation from August's 80.4°F (26.9°C). Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Spring Bay, Illinois, with an average temperature varying between 46°F (7.8°C) and 61.9°F (16.6°C). Welcoming October, Spring Bay observes a shift in the average high-temperature, falling from September's warm 75.9°F (24.4°C) to a refreshing 61.9°F (16.6°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Spring Bay, Illinois, with an average temperature ranging between min 34.2°F (1.2°C) and max 47.5°F (8.6°C). With the onset of November, Spring Bay experiences a distinct temperature drop, with the average high-temperature reducing from October's refreshing 61.9°F (16.6°C) to a chilly 47.5°F (8.6°C). Weather in November »Weather in December
December, the first month of the winter in Spring Bay, is also an icy month, with an average temperature ranging between min 25.7°F (-3.5°C) and max 36°F (2.2°C). December brings a decrease in the average high-temperature, shifting from a chilly 47.5°F (8.6°C) in November to an icy 36°F (2.2°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Spring Bay, IL
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (29.8°F).
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure
Spring Bay, IL
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Spring Bay, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.6mph - Average wind speed in May:
8.9mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.3mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Spring Bay, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Spring Bay, IL
- Average rainfall in January:
0.67" - Average rainfall in February:
0.71" - Average rainfall in March:
1.1" - Average rainfall in April:
1.77" - Average rainfall in May:
2.36" - Average rainfall in June:
1.73"
- Average rainfall in July:
1.46" - Average rainfall in August:
1.26" - Average rainfall in September:
1.14" - Average rainfall in October:
1.34" - Average rainfall in November:
0.83" - Average rainfall in December:
0.75"
The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days
Spring Bay, IL
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
4.5 days - Average rainfall days in March:
11 days - Average rainfall days in April:
13.6 days - Average rainfall days in May:
16.2 days - Average rainfall days in June:
13.8 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
11.9 days - Average rainfall days in September:
10.1 days - Average rainfall days in October:
10 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
5.7 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is February (4.5 days).
Average snowfall
Spring Bay, IL
The month with the highest snowfall is January (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Spring Bay, IL
- Average snowfall days in January:
9.2 days - Average snowfall days in February:
7 days - Average snowfall days in March:
2.9 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:
1.8 days - Average snowfall days in December:
6.3 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Spring Bay, IL
- Average daylight in January:
9h and 36min - 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 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
4h and 6min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Spring Bay, IL
- Average sunshine days in January:
19.4 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
17.4 days - Average sunshine days in April:
14.7 days - Average sunshine days in May:
12.4 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
13 days - Average sunshine days in August:
16.5 days - Average sunshine days in September:
17.8 days - Average sunshine days in October:
19 days - Average sunshine days in November:
20.2 days - Average sunshine days in December:
19.9 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (12.4 days).
Average UV index
Spring Bay, 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
Spring Bay, IL
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility
Spring Bay, 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).





