Climate and monthly weather forecastDalzell, IL
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Dalzell, Illinois, with an average temperature varying between 16.9°F (-8.4°C) and 28.9°F (-1.7°C). Dalzell reaches its lowest average temperatures in January, measuring 28.9°F (-1.7°C) at the peak and 16.9°F (-8.4°C) at the lowest. Weather in January »Weather in February
February, the last month of the winter in Dalzell, is a cold month, with an average temperature fluctuating between 33.4°F (0.8°C) and 20.5°F (-6.4°C). The advent of February observes an average high-temperature of a cold 33.4°F (0.8°C), nearly identical to January's 28.9°F (-1.7°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Dalzell, Illinois, with temperature in the range of an average high of 46.8°F (8.2°C) and an average low of 32.4°F (0.2°C). March witnesses an increase in the average high-temperature, moving from an icy 33.4°F (0.8°C) in February to a frosty 46.8°F (8.2°C). Weather in March »Weather in April
April is a refreshing spring month in Dalzell, Illinois, with temperature in the range of an average low of 42.4°F (5.8°C) and an average high of 58.8°F (14.9°C). Dalzell in April shows a temperature shift, moving from an average high of a chilly 46.8°F (8.2°C) in March to a moderate 58.8°F (14.9°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in Dalzell, Illinois, with temperature in the range of an average high of 70.5°F (21.4°C) and an average low of 53.6°F (12°C). The arrival of May signals an increase in the average high-temperature, moving from a moderate 58.8°F (14.9°C) in April to an agreeable 70.5°F (21.4°C). Weather in May »Weather in June
June, the first month of the summer in Dalzell, is a moderately hot month, with an average temperature ranging between max 78.8°F (26°C) and min 61.5°F (16.4°C). June witnesses a minor rise in the average high-temperature, transitioning from a pleasant 70.5°F (21.4°C) in May to a moderately hot 78.8°F (26°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Dalzell, Illinois, with temperature in the range of an average low of 64.2°F (17.9°C) and an average high of 80.6°F (27°C). Dalzell's July weather, marked by an average high temperature of 80.6°F (27°C) and an average low temperature of 64.2°F (17.9°C), is the warmest in the year. July's heat index is computed to be a tropical 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in Dalzell, is also a moderately hot month, with temperature in the range of an average high of 79.5°F (26.4°C) and an average low of 62.1°F (16.7°C). The beginning of August reveals an average high-temperature of a still moderately hot 79.5°F (26.4°C), showing minimal deviation from the previous month. Weather in August »Weather in September
September, the first month of the autumn in Dalzell, is still a warm month, with temperature in the range of an average low of 56.1°F (13.4°C) and an average high of 74.5°F (23.6°C). With the advent of September, Dalzell experiences an average high-temperature of a still warm 74.5°F (23.6°C), mirroring a close resemblance to the previous month. Weather in September »Weather in October
October, the same as September, is another refreshing autumn month in Dalzell, Illinois, with an average temperature fluctuating between 61.7°F (16.5°C) and 45.7°F (7.6°C). With the onset of October, Dalzell's average high-temperature adjusts, receding from September's warm 74.5°F (23.6°C) to an enjoyable 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 Dalzell, Illinois, with an average temperature fluctuating between 33.8°F (1°C) and 46.8°F (8.2°C). A clear decrease in the average high-temperature is observed during November, decreasing from an enjoyable 61.7°F (16.5°C) in October 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 Dalzell, Illinois, with an average temperature ranging between max 34.9°F (1.6°C) and min 24.6°F (-4.1°C). December's onset brings a slight change in high-temperatures, falling from a frosty 46.8°F (8.2°C) in November to a cold 34.9°F (1.6°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
The month of January, characterized by an average high of 28.9°F (-1.7°C) and a low of 16.9°F (-8.4°C), is recognized as the coldest in Dalzell.
Throughout the year, in Dalzell, there are 151.4 rainfall days, and 30.67" (779mm) of precipitation is accumulated.
Months with snowfall are January through April, October through December.
The month with the most snowfall in Dalzell, Illinois, is January, when snow falls for 12.1 days and typically aggregates up to 4.37" (111mm) of snow.
In Dalzell, Illinois, during the entire year, snow falls for 40.5 days and aggregates up to 15.16" (385mm) of snow.
With an average of 3.9h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
February is the month with the least rainfall. Rain falls for 6.1 days and accumulates 1.57" (40mm) of precipitation.
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 in Dalzell is May, when the rain falls for 18.5 days and typically aggregates up to 4.65" (118mm) of precipitation.
May through September are months without snowfall in Dalzell.
With an average of 15h and 6min of daylight, June has the longest days of the year.
The month with the most sunshine in Dalzell is June, with an average of 9.8h of sunshine.
June and July, with an average maximum UV index of 6, are months with the highest UV index in Dalzell.
July is the month when Dalzell's temperatures reach their peak, with averages of 80.6°F (27°C) and lows of 64.2°F (17.9°C).
With an average relative humidity of 85%, July is the most humid month.
October is the least humid month in Dalzell, with an average relative humidity of 72%.
The month with the shortest days in Dalzell, Illinois, is December, with an average of 9h and 12min of daylight.
Average temperature
Dalzell, 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 (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
Dalzell, 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:
29.96"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
Dalzell, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.2mph - Average wind speed in March:
9.9mph - Average wind speed in April:
10.3mph - 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:
6.2mph - Average wind speed in September:
7.4mph - Average wind speed in October:
9.2mph - Average wind speed in November:
9.9mph - Average wind speed in December:
9.6mph
The windiest months (with the highest average wind speed) are January and April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
Dalzell, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Dalzell, IL
- Average rainfall in January:
1.65" - Average rainfall in February:
1.57" - Average rainfall in March:
2.13" - Average rainfall in April:
3.78" - Average rainfall in May:
4.65" - Average rainfall in June:
3.31"
- Average rainfall in July:
2.8" - Average rainfall in August:
2.28" - Average rainfall in September:
2.28" - Average rainfall in October:
2.83" - Average rainfall in November:
1.77" - Average rainfall in December:
1.61"
The wettest month (with the highest rainfall) is May (4.65").
The driest month (with the least rainfall) is February (1.57").
Average rainfall days
Dalzell, IL
- Average rainfall days in January:
5.5 days - Average rainfall days in February:
6.1 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
16.7 days - Average rainfall days in May:
18.5 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
17.1 days - Average rainfall days in August:
15 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
12.5 days - Average rainfall days in November:
10.1 days - Average rainfall days in December:
7.8 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (5.5 days).
Average snowfall
Dalzell, IL
The month with the highest snowfall is January (4.37").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Dalzell, IL
- Average snowfall days in January:
12.1 days - Average snowfall days in February:
9.8 days - Average snowfall days in March:
5.8 days - Average snowfall days in April:
1.8 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:
0.4 days - Average snowfall days in November:
3.1 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Dalzell, 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 12min
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 12min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 18min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 48min
- Average sunshine in July:
9h and 42min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 48min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 12min - Average sunshine in December:
4h and 12min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Dalzell, IL
- Average sunshine days in January:
13.8 days - Average sunshine days in February:
12.9 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
10.8 days - Average sunshine days in May:
10.4 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
15.2 days - Average sunshine days in October:
16.1 days - Average sunshine days in November:
17.4 days - Average sunshine days in December:
16.3 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (10.4 days).
Average UV index
Dalzell, 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
Dalzell, IL
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility
Dalzell, 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).
