Climate and monthly weather forecastSpring Valley, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in Spring Valley, Illinois, is another subzero cold winter month, with an average temperature fluctuating between 16.9°F (-8.4°C) and 28.9°F (-1.7°C). With its high average temperature of 28.9°F (-1.7°C) and a low of 16.9°F (-8.4°C), January is regarded as the coldest month. Weather in January »Weather in February
February, the last month of the winter in Spring Valley, is an icy month, with temperature in the range of an average low of 20.3°F (-6.5°C) and an average high of 33.4°F (0.8°C). Spring Valley notes an average high-temperature of a wintry 33.4°F (0.8°C) in February, hardly diverging from January. Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Spring Valley, Illinois, with an average temperature varying between 32.5°F (0.3°C) and 47.1°F (8.4°C). In Spring Valley, the onset of March comes with an increased average high-temperature, moving from February's wintry 33.4°F (0.8°C) to a chilly 47.1°F (8.4°C). Weather in March »Weather in April
April is a mild spring month in Spring Valley, Illinois, with an average temperature fluctuating between 59°F (15°C) and 42.4°F (5.8°C). The onset of April brings a temperature shift, with the average high-temperature moving from a chilly 47.1°F (8.4°C) in March to a mild 59°F (15°C). Weather in April »Weather in May
May, the last month of the spring in Spring Valley, is a pleasant month, with an average temperature ranging between max 71.1°F (21.7°C) and min 53.6°F (12°C). Spring Valley sees an increase in the average high-temperature with the arrival of May, moving from April's refreshing 59°F (15°C) to an agreeable 71.1°F (21.7°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Spring Valley, Illinois, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 61.7°F (16.5°C). In Spring Valley, stepping into June brings a gentle temperature nudge, moving slightly up from May's pleasant 71.1°F (21.7°C) to a moderately hot 78.6°F (25.9°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Spring Valley, Illinois, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 80.8°F (27.1°C). In Spring Valley, July is the month with the highest recorded average temperatures, measuring a high of 80.8°F (27.1°C) and a low of 64.2°F (17.9°C). In July, the heat index is estimated at a tropical 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in Spring Valley, is also a moderately hot month, with an average temperature fluctuating between 79.7°F (26.5°C) and 61.9°F (16.6°C). Spring Valley in August witnesses an average high-temperature of a still warm 79.7°F (26.5°C), indicating a slight variation from July's 80.8°F (27.1°C). Weather in August »Weather in September
September, the first month of the autumn in Spring Valley, is also a moderately hot month, with temperature in the range of an average low of 56.1°F (13.4°C) and an average high of 74.7°F (23.7°C). The arrival of September brings an average high-temperature of a still warm 74.7°F (23.7°C), nearly identical to August's 79.7°F (26.5°C). Weather in September »Weather in October
October, the same as September, is another enjoyable autumn month in Spring Valley, Illinois, with temperature in the range of an average high of 61.7°F (16.5°C) and an average low of 45.7°F (7.6°C). October suggests a modest reduction in the average high-temperature, shifting from a moderately hot 74.7°F (23.7°C) in September to a refreshing 61.7°F (16.5°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Spring Valley, Illinois, with an average temperature fluctuating between 46.8°F (8.2°C) and 33.6°F (0.9°C). As October transitions into November, Spring Valley sees a clear drop in the average high-temperature, declining from a refreshing 61.7°F (16.5°C) to a chilly 46.8°F (8.2°C). Weather in November »Weather in December
The first month of the winter, December, is still a cold month in Spring Valley, Illinois, with an average temperature varying between 24.4°F (-4.2°C) and 34.7°F (1.5°C). Onset of December comes with a temperature decline, the average high falling from a frosty 46.8°F (8.2°C) in November to an icy 34.7°F (1.5°C). Weather in December »Updated: Aug 15, 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
Temperature records mark January as the coldest month, with highs averaging 28.9°F (-1.7°C) and lows at 16.9°F (-8.4°C).
The months with the least rainfall are January and December Rain falls for 5.9 days and accumulates 1.61" (41mm) of rain.
In Spring Valley, during the entire year, the rain falls for 152.7 days and collects up to 30.79" (782mm) of precipitation.
January through April, October through December are months with snowfall.
The month with the most snowfall is January, when snow falls for 11.9 days and typically aggregates up to 4.09" (104mm) of snow.
In Spring Valley, during the entire year, snow falls for 39.5 days and aggregates up to 15.31" (389mm) of snow.
With an average of 3.9h of sunshine, January has the least sunshine of the year.
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
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 is May, when the rain falls for 18.9 days and typically aggregates up to 4.69" (119mm) of precipitation.
In Spring Valley, snow does not fall in May through September.
June has the longest days of the year in Spring Valley, with an average of 15h and 6min of daylight.
June through August, with an average of 9.8h of sunshine, are months with the most sunshine.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
Spring Valley's warmest month, July, generally records average temperatures ranging from a high of 80.8°F (27.1°C) to a low of 64.2°F (17.9°C).
July is the most humid month, with an average relative humidity of 85%.
The least humid month is October, with an average relative humidity of 72%.
December has the shortest days of the year, with an average of 9h and 18min of daylight.
Average temperature
Spring Valley, IL
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (28.9°F).
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure
Spring Valley, IL
- Average pressure in January:
30.13"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:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Spring Valley, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.2mph - Average wind speed in March:
10.1mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.5mph - Average wind speed in October:
9.2mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Spring Valley, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Spring Valley, IL
- Average rainfall in January:
1.61" - Average rainfall in February:
1.69" - Average rainfall in March:
2.2" - Average rainfall in April:
3.82" - Average rainfall in May:
4.69" - Average rainfall in June:
3.27"
The wettest month (with the highest rainfall) is May (4.69").
The driest months (with the least rainfall) are January and December (1.61").
Average rainfall days
Spring Valley, IL
- Average rainfall days in January:
5.9 days - Average rainfall days in February:
6.5 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
17.1 days - Average rainfall days in May:
18.9 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
17.5 days - Average rainfall days in August:
13.9 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
13.2 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
7.5 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall
Spring Valley, IL
The month with the highest snowfall is January (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Spring Valley, IL
- Average snowfall days in January:
11.9 days - Average snowfall days in February:
9.5 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
1.4 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:
0.1 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
2.8 days - Average snowfall days in December:
8 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight / Average sunshine
Spring Valley, 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 30min - Average daylight in June:
15h and 6min
- Average daylight in July:
14h and 48min - 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 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 54min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 30min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 48min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
9h and 48min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 12min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Spring Valley, IL
- Average sunshine days in January:
14 days - Average sunshine days in February:
13.3 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
10.2 days - Average sunshine days in May:
10.3 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
15.5 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
16.2 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is April (10.2 days).
Average UV index
Spring Valley, IL
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Spring Valley, IL
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility
Spring Valley, IL
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
