Expand
Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, in Nelson, Illinois, is a freezing cold winter month, with temperature in the range of an average high of 27.7°F (-2.4°C) and an average low of 14.9°F (-9.5°C). Nelson's January weather, marked by an average high temperature of 27.7°F (-2.4°C) and an average low temperature of 14.9°F (-9.5°C), is the coldest in the year. Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in Nelson, Illinois, with an average temperature fluctuating between 18.5°F (-7.5°C) and 31.6°F (-0.2°C). As February unfolds, the average high-temperature reaches a still freezing cold 31.6°F (-0.2°C), hinting at a slight fluctuation from the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Nelson, Illinois, with temperature in the range of an average high of 45.9°F (7.7°C) and an average low of 31.3°F (-0.4°C). In March, the average high-temperature increases from a freezing cold 31.6°F (-0.2°C) in February to a chilly 45.9°F (7.7°C). Weather in March »
Weather in April
April is a moderate spring month in Nelson, Illinois, with an average temperature fluctuating between 57.9°F (14.4°C) and 41.4°F (5.2°C). In April, the meteorological conditions change with the average high-temperature moving from a frosty 45.9°F (7.7°C) in March to a mild 57.9°F (14.4°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Nelson, Illinois, with an average temperature ranging between max 69.4°F (20.8°C) and min 52.5°F (11.4°C). As May sets, the average high-temperature shows an increase, moving up from a moderate 57.9°F (14.4°C) in April to an agreeable 69.4°F (20.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Nelson, Illinois, with an average temperature ranging between max 78.3°F (25.7°C) and min 61.3°F (16.3°C). The transition from May to June brings a subtle temperature rise, with average high-temperatures increasing from an agreeable 69.4°F (20.8°C) to a moderately hot 78.3°F (25.7°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Nelson, Illinois, with an average temperature fluctuating between 63.9°F (17.7°C) and 80.2°F (26.8°C). July proves to be the warmest month, recording an average peak temperature of 80.2°F (26.8°C) and a minimum temperature of 63.9°F (17.7°C). Weather in July »
Weather in August
August, the last month of the summer in Nelson, is also a moderately hot month, with an average temperature fluctuating between 79.3°F (26.3°C) and 61.7°F (16.5°C). Nelson experiences a transition to a still moderately hot 79.3°F (26.3°C) in average high-temperatures with the arrival of August, not greatly differing from July's 80.2°F (26.8°C). Weather in August »
Weather in September
September, the first month of the autumn in Nelson, is still a warm month, with an average temperature ranging between min 55.2°F (12.9°C) and max 73.9°F (23.3°C). The onset of September results in a small decrease in the average high-temperature, moderately receding from a warm 79.3°F (26.3°C) in August to a still moderately hot 73.9°F (23.3°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Nelson, Illinois, with an average temperature ranging between min 44.6°F (7°C) and max 60.6°F (15.9°C). As September transitions into October, Nelson sees a drop in the average high-temperature, transitioning from a warm 73.9°F (23.3°C) to a moderate 60.6°F (15.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Nelson, Illinois, with temperature in the range of an average low of 32.4°F (0.2°C) and an average high of 45.5°F (7.5°C). With the onset of November, Nelson's average high-temperature witnesses a clear drop, receding from October's refreshing 60.6°F (15.9°C) to a chilly 45.5°F (7.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Nelson, Illinois, with an average temperature ranging between min 23.2°F (-4.9°C) and max 33.8°F (1°C). As December arrives, Nelson's weather displays a decrease in high-temperatures, transitioning from November's frosty 45.5°F (7.5°C) to a wintry 33.8°F (1°C). 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
What is the coldest month in Nelson?
January stands out as Nelson's coldest month, with an average high-temperature of 27.7°F (-2.4°C) and a low-temperature of 14.9°F (-9.5°C).
What are the most humid months in Nelson?
The months with the highest humidity are January and July, with an average relative humidity of 85%.
What is the driest month in Nelson?
January and February are months with the least rain in Nelson when the rain falls for 4.8 days and typically aggregates up to 0.75" (19mm) of rain.
How many days does it rain in Nelson?
In Nelson, during the entire year, the rain falls for 130.2 days and collects up to 17.36" (441mm) of precipitation.
When does it snow in Nelson?
Months with snowfall in Nelson are January through April, October through December.
When does it snow the most in Nelson?
January is the month with the most snowfall. Snow falls for 10.2 days and accumulates 2.56" (65mm) of snow.
How many days does it snow in Nelson?
In Nelson, Illinois, during the entire year, snow falls for 34.2 days and aggregates up to 7.87" (200mm) of snow.
What is the month with the least sunshine in Nelson?
With an average of 3.8h of sunshine, January has the least sunshine of the year in Nelson, Illinois.
When is Daylight Saving Time (DST) in Nelson?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Nelson, Illinois, 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.
What is the rainiest month in Nelson?
May is the month with the most rainfall in Nelson, Illinois. Rain falls for 17.3 days and accumulates 2.83" (72mm) of precipitation.
When it does not snow in Nelson?
May through September are months without snowfall in Nelson.
When are the longest days in Nelson?
With an average of 15h and 12min of daylight, June has the longest days of the year in Nelson.
What month is the hottest in Nelson?
The month of July, characterized by an average high of 80.2°F (26.8°C) and a low of 63.9°F (17.7°C), is recognized as the warmest in Nelson, Illinois.
What month has the most sunshine in Nelson?
With an average of 9.8h of sunshine, July has the most sunshine of the year in Nelson.
What is the month with the highest UV index in Nelson?
The month with the highest UV index in Nelson, Illinois, is July, with an average maximum UV index of 6.
What is the least humid month in Nelson?
The least humid month is October, with an average relative humidity of 73%.
What is the month with the shortest days in Nelson?
With an average of 9h and 12min of daylight, December has the shortest days of the year in Nelson, Illinois.
What is the month with the lowest UV index in Nelson?
December is the month with the lowest UV index, with an average maximum UV index of 1.
Average temperature
Nelson, IL
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (27.7°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 (14.9°F).
Average pressure
Nelson, IL
- Average pressure in January:
30.12"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:
29.96"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:
30.09"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Nelson, IL
- Average wind speed in January:
10mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.9mph - 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:
6.4mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity
Nelson, IL
The months with the highest relative humidity are January and July (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Nelson, IL
- Average rainfall in January:
0.75" - Average rainfall in February:
0.75" - Average rainfall in March:
1.1" - Average rainfall in April:
1.89" - Average rainfall in May:
2.83" - Average rainfall in June:
2.13"
- Average rainfall in July:
1.81" - Average rainfall in August:
1.34" - Average rainfall in September:
1.26" - Average rainfall in October:
1.65" - Average rainfall in November:
1.02" - Average rainfall in December:
0.83"
The wettest month (with the highest rainfall) is May (2.83").
The driest months (with the least rainfall) are January and February (0.75").
Average rainfall days
Nelson, IL
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
5 days - Average rainfall days in March:
11.1 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
16.5 days
- Average rainfall days in July:
14.1 days - Average rainfall days in August:
12.5 days - Average rainfall days in September:
9.7 days - Average rainfall days in October:
10.8 days - Average rainfall days in November:
7.9 days - Average rainfall days in December:
5.7 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.8 days).
Average snowfall
Nelson, IL
The month with the highest snowfall is January (2.56").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Nelson, IL
- Average snowfall days in January:
10.2 days - Average snowfall days in February:
8.2 days - Average snowfall days in March:
4.4 days - Average snowfall days in April:
1 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:
0.5 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
7.4 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Nelson, IL
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
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 5min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 2min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 4min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
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 48min).
Average sunshine days
Nelson, IL
- Average sunshine days in January:
17 days - Average sunshine days in February:
16.2 days - Average sunshine days in March:
16.7 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
11.3 days
- Average sunshine days in July:
12.7 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
18.4 days - Average sunshine days in October:
18.6 days - Average sunshine days in November:
18.8 days - Average sunshine days in December:
18.8 days
The months with the most sunshine days are November and December (18.8 days).
The month with the least sunshine days is June (11.3 days).
Average UV index
Nelson, IL
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Nelson, IL
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility
Nelson, 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).
Nelson, Illinois, USA
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location