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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, like December, is another subzero cold winter month in Norris, Illinois, with an average temperature varying between 31.3°F (-0.4°C) and 19.2°F (-7.1°C). Norris's coldest month, January, registers temperatures that range from a high of 31.3°F (-0.4°C) to a low of 19.2°F (-7.1°C). Weather in January »
Weather in February
February, the last month of the winter in Norris, is a wintry month, with an average temperature varying between 22.5°F (-5.3°C) and 36.1°F (2.3°C). Upon the onset of February, Norris witnesses an average high-temperature of a cold 36.1°F (2.3°C), showing a close resemblance to the prior month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Norris, Illinois, with an average temperature varying between 49.5°F (9.7°C) and 34.2°F (1.2°C). March's arrival signals a temperature shift, moving from a cold 36.1°F (2.3°C) in February to a frosty 49.5°F (9.7°C). Weather in March »
Weather in April
April is an enjoyable spring month in Norris, Illinois, with an average temperature ranging between min 44.2°F (6.8°C) and max 61.3°F (16.3°C). Norris in April experiences an increase in the average high-temperature, moving from March's frosty 49.5°F (9.7°C) to a comfortable 61.3°F (16.3°C). Weather in April »
Weather in May
May, the last month of the spring in Norris, is an agreeable month, with an average temperature fluctuating between 72°F (22.2°C) and 55°F (12.8°C). With the transition into May, Norris experiences an increase in average high-temperatures, moving up from an enjoyable 61.3°F (16.3°C) in April to an agreeable 72°F (22.2°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Norris, Illinois, with an average temperature varying between 80.4°F (26.9°C) and 63.7°F (17.6°C). The start of June signals a slight increase in the average high-temperature, moving from an agreeable 72°F (22.2°C) in May to a moderately hot 80.4°F (26.9°C). Weather in June »
Weather in July
July, like June, in Norris, Illinois, is another warm summer month, with an average temperature ranging between min 65.7°F (18.7°C) and max 82.4°F (28°C). Temperature records mark July as the warmest month, with highs averaging 82.4°F (28°C) and lows at 65.7°F (18.7°C). In July, the heat index is evaluated at a hot 91.4°F (33°C). Weather in July »
Weather in August
August, the last month of the summer in Norris, is also a moderately hot month, with an average temperature ranging between max 81.9°F (27.7°C) and min 63.5°F (17.5°C). The arrival of August records an average high-temperature of a still moderately hot 81.9°F (27.7°C), closely related to the 82.4°F (28°C) observed in July. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Norris, Illinois, with an average temperature ranging between max 76.5°F (24.7°C) and min 57.4°F (14.1°C). A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a moderately hot 81.9°F (27.7°C) to a still warm 76.5°F (24.7°C). Weather in September »
Weather in October
October, like September, in Norris, Illinois, is another refreshing autumn month, with an average temperature ranging between max 62.8°F (17.1°C) and min 46.2°F (7.9°C). During Norris's transition into October, the average high-temperature lessens, moving from a warm 76.5°F (24.7°C) in September to a refreshing 62.8°F (17.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Norris, Illinois, with temperature in the range of an average low of 34.7°F (1.5°C) and an average high of 48.9°F (9.4°C). The arrival of November indicates a decrease in the average high-temperature, moving from an enjoyable 62.8°F (17.1°C) in October to a frosty 48.9°F (9.4°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Norris, Illinois, with an average temperature ranging between min 26.2°F (-3.2°C) and max 36.9°F (2.7°C). During Norris's transition into December, the average high-temperature lessens, moving from a frosty 48.9°F (9.4°C) in November to a cold 36.9°F (2.7°C). Weather in December »
Updated: Jul 14, 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 month is the coldest?
January, with its high-temperature average of 31.3°F (-0.4°C) and a low-temperature average of 19.2°F (-7.1°C), is the coldest month.
How much does it rain?
In Norris, during the entire year, the rain falls for 98 days and collects up to 8.86" (225mm) of precipitation.
When does it snow?
Months with snowfall are January through April, October through December.
What is the snowiest month?
January is the month with the most snowfall. Snow falls for 6.4 days and accumulates 1.1" (28mm) of snow.
How many days does it snow in Norris?
Throughout the year, in Norris, there are 19.9 snowfall days, and 3.07" (78mm) of snow is accumulated.
What is the month with the least sunshine?
January has the least sunshine of the year, with an average of 4h of sunshine.
What is the month with the lowest UV index?
The months with the lowest UV index in Norris are January, February, November and December, with an average maximum UV index of 2.
What is the driest month?
The months with the least rainfall are February and December Rain falls for 3.3 days and accumulates 0.35" (9mm) of rain.
When is Daylight Saving Time (DST)?
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.
What is the wettest month?
The month with the most rainfall is May, when the rain falls for 12.9 days and typically aggregates up to 1.3" (33mm) of precipitation.
When it does not snow in Norris?
May through September are months without snowfall.
When are the longest days?
With an average of 15h and 0min of daylight, June has the longest days of the year.
What is the month with the most sunshine?
The months with the most sunshine are June and July, with an average of 10.1h of sunshine.
What is the month with the highest UV index in Norris?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What part of the year is the hottest?
Norris's temperature records reveal July as the warmest month, marked by average highs of 82.4°F (28°C) and lows of 65.7°F (18.7°C).
What is the most humid month?
July is the most humid month, with an average relative humidity of 83%.
What is the least humid month?
October is the least humid month, with an average relative humidity of 71%.
What is the month with the shortest days?
With an average of 9h and 18min of daylight, December has the shortest days of the year.
Average temperature
Norris, IL
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (31.3°F).
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (19.2°F).
Average pressure
Norris, IL
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.93"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:
30.02"Hg - Average pressure in October:
30.02"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
Norris, IL
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.5mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.7mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.5mph - Average wind speed in October:
9.3mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.8mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Norris, IL
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Norris, IL
- Average rainfall in January:
0.39" - Average rainfall in February:
0.35" - Average rainfall in March:
0.63" - Average rainfall in April:
0.98" - Average rainfall in May:
1.3" - Average rainfall in June:
1.1"
- Average rainfall in July:
0.83" - Average rainfall in August:
0.71" - Average rainfall in September:
0.87" - Average rainfall in October:
0.83" - Average rainfall in November:
0.51" - Average rainfall in December:
0.35"
The wettest month (with the highest rainfall) is May (1.3").
The driest months (with the least rainfall) are February and December (0.35").
Average rainfall days
Norris, IL
- Average rainfall days in January:
3 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
11.1 days - Average rainfall days in May:
12.9 days - Average rainfall days in June:
13.2 days
- Average rainfall days in July:
11.2 days - Average rainfall days in August:
9 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
7.4 days - Average rainfall days in November:
5.6 days - Average rainfall days in December:
4 days
The month with the highest number of rainy days is June (13.2 days).
The month with the least rainy days is January (3 days).
Average snowfall
Norris, IL
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Norris, IL
- Average snowfall days in January:
6.4 days - Average snowfall days in February:
5.1 days - Average snowfall days in March:
2.7 days - Average snowfall days in April:
0.6 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:
1.2 days - Average snowfall days in December:
3.8 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Norris, 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 3min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 2min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 1min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
9h and 5min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Norris, IL
- Average sunshine days in January:
23.6 days - Average sunshine days in February:
21.4 days - Average sunshine days in March:
19.6 days - Average sunshine days in April:
17.6 days - Average sunshine days in May:
16 days - Average sunshine days in June:
14.4 days
- Average sunshine days in July:
16 days - Average sunshine days in August:
18.8 days - Average sunshine days in September:
20.4 days - Average sunshine days in October:
22.5 days - Average sunshine days in November:
22.5 days - Average sunshine days in December:
23.4 days
The month with the most sunshine days is January (23.6 days).
The month with the least sunshine days is June (14.4 days).
Average UV index
Norris, 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, February, November and December (UV index 2).
Average cloud cover
Norris, IL
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility
Norris, IL
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Norris, Illinois, USA
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