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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, in Ullin, Illinois, is another cold winter month, with an average temperature varying between 39.7°F (4.3°C) and 26.8°F (-2.9°C). January proves to be the coldest month, recording an average maximum temperature of 39.7°F (4.3°C) and a minimum temperature of 26.8°F (-2.9°C). Weather in January »
Weather in February
February, the last month of the winter in Ullin, is a frosty month, with an average temperature varying between 30.4°F (-0.9°C) and 44.6°F (7°C). The average high-temperature in February, at a frosty 44.6°F (7°C), reveals a modest deviation from January's 39.7°F (4.3°C). Weather in February »
Weather in March
The first month of the spring, March, is a moderate month in Ullin, Illinois, with an average temperature ranging between min 39.4°F (4.1°C) and max 55.6°F (13.1°C). Ullin in March experiences an increase in the average high-temperature, moving from February's frosty 44.6°F (7°C) to a refreshing 55.6°F (13.1°C). Weather in March »
Weather in April
April in Ullin, Illinois, is an enjoyable spring month, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 66.6°F (19.2°C). April's onset brings a rise in the average high-temperature, moving from a refreshing 55.6°F (13.1°C) in March to a comfortable 66.6°F (19.2°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Ullin, Illinois, with an average temperature ranging between max 75.7°F (24.3°C) and min 58.1°F (14.5°C). As May begins, there is an increase in the average high-temperature, moving from a comfortable 66.6°F (19.2°C) in April to a moderately hot 75.7°F (24.3°C). Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Ullin, Illinois, with an average temperature fluctuating between 66.2°F (19°C) and 85.6°F (29.8°C). The beginning of June signals a rise in the average high-temperature, moving from 75.7°F (24.3°C) in May to a still moderately hot 85.6°F (29.8°C). Weather in June »
Weather in July
July is a hot summer month in Ullin, Illinois, with an average temperature varying between 69.1°F (20.6°C) and 88.3°F (31.3°C). In Ullin, the highest average temperatures are observed in July, with a high of 88.3°F (31.3°C) and a low of 69.1°F (20.6°C). July's average heat index is computed to be a scorching 104°F (40°C). Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in Ullin, Illinois, with an average temperature varying between 66.7°F (19.3°C) and 86.5°F (30.3°C). As July transitions into August, the average high-temperature rests at a still hot 86.5°F (30.3°C), maintaining a close resemblance to the previous month. Weather in August »
Weather in September
September, the first month of the autumn in Ullin, is still a warm month, with an average temperature ranging between min 60.6°F (15.9°C) and max 81°F (27.2°C). September brings a slight decrease in the average high-temperature, shifting from a tropical 86.5°F (30.3°C) in August to a warm 81°F (27.2°C). Weather in September »
Weather in October
October, like September, in Ullin, Illinois, is another refreshing autumn month, with an average temperature ranging between min 49.5°F (9.7°C) and max 67.8°F (19.9°C). October weather is marked by a drop in the average high-temperature, falling from a moderately hot 81°F (27.2°C) in September to a comfortable 67.8°F (19.9°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in Ullin, Illinois, with temperature in the range of an average low of 38.7°F (3.7°C) and an average high of 54.5°F (12.5°C). November weather is marked by a drop in the average high-temperature, falling from an enjoyable 67.8°F (19.9°C) in October to a fresh 54.5°F (12.5°C). Weather in November »
Weather in December
December, the first month of the winter in Ullin, is also a frosty month, with an average temperature varying between 44.8°F (7.1°C) and 32.2°F (0.1°C). As December commences, the average high-temperature shows a reduction, transitioning from a cool 54.5°F (12.5°C) in November to a frosty 44.8°F (7.1°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 time of year in Ullin?
With average high and low temperatures of 39.7°F (4.3°C) and 26.8°F (-2.9°C) respectively, January is Ullin's coldest month.
How many days does it rain in Ullin?
Throughout the year, in Ullin, Illinois, there are 143 rainfall days, and 27.44" (697mm) of precipitation is accumulated.
When does it snow in Ullin?
Months with snowfall in Ullin, Illinois, are January through April, October through December.
How much does it snow in Ullin?
Throughout the year, there are 14.9 snowfall days, and 6.06" (154mm) of snow is accumulated.
What is the month with the least sunshine in Ullin?
January and February, with an average of 4.6h of sunshine, are months with the least sunshine.
What are the months with the lowest UV index in Ullin?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Ullin.
What is the snowiest month in Ullin?
The month with the most snowfall in Ullin is February, when snow falls for 3.9 days and typically aggregates up to 1.89" (48mm) of snow.
When is Daylight Saving Time (DST) in Ullin?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Ullin, 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 wettest month in Ullin?
The month with the most rainfall is April, when the rain falls for 13.4 days and typically aggregates up to 3.31" (84mm) of precipitation.
What is the most humid month in Ullin?
The most humid month is May, with an average relative humidity of 79%.
When it does not snow in Ullin?
In Ullin, snow does not fall in May through September.
What is the month with the highest UV index in Ullin?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days in Ullin?
With an average of 14h and 42min of daylight, June has the longest days of the year in Ullin, Illinois.
What are the warmest months in Ullin?
The average temperatures reach their apex in July, averaging 88.3°F (31.3°C) at the high end and 69.1°F (20.6°C) at the low end.
What month has the most sunshine in Ullin?
With an average of 10.4h of sunshine, July has the most sunshine of the year.
What is the driest month in Ullin?
September is the month with the least rainfall in Ullin, Illinois. Rain falls for 10.8 days and accumulates 1.3" (33mm) of precipitation.
What is the least humid month in Ullin?
The least humid month in Ullin, Illinois, is October, with an average relative humidity of 71%.
What is the month with the shortest days in Ullin?
With an average of 9h and 36min of daylight, December has the shortest days of the year.
Average temperature
Ullin, IL
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (39.7°F).
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure
Ullin, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.97"Hg - Average pressure in June:
29.94"Hg
- Average pressure in July:
29.98"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed
Ullin, IL
- Average wind speed in January:
9mph - Average wind speed in February:
8.9mph - Average wind speed in March:
8.8mph - Average wind speed in April:
8.8mph - Average wind speed in May:
7.3mph - Average wind speed in June:
6.3mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.6mph - Average wind speed in September:
6.2mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8.3mph - Average wind speed in December:
8.5mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity
Ullin, IL
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Ullin, IL
- Average rainfall in January:
1.57" - Average rainfall in February:
2.24" - Average rainfall in March:
2.48" - Average rainfall in April:
3.31" - Average rainfall in May:
2.95" - Average rainfall in June:
2.87"
- Average rainfall in July:
2.48" - Average rainfall in August:
2.44" - Average rainfall in September:
1.3" - Average rainfall in October:
2.01" - Average rainfall in November:
1.97" - Average rainfall in December:
1.81"
The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days
Ullin, IL
- Average rainfall days in January:
8.4 days - Average rainfall days in February:
9.6 days - Average rainfall days in March:
14.1 days - Average rainfall days in April:
13.4 days - Average rainfall days in May:
14.9 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
15.9 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
10.8 days - Average rainfall days in October:
8.7 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
9.2 days
The month with the highest number of rainy days is July (15.9 days).
The month with the least rainy days is January (8.4 days).
Average snowfall
Ullin, IL
The month with the highest snowfall is February (1.89").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Ullin, IL
- Average snowfall days in January:
4.6 days - Average snowfall days in February:
3.9 days - Average snowfall days in March:
2.2 days - Average snowfall days in April:
0.4 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 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.1 days - Average snowfall days in December:
2.6 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Ullin, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 1min - Average daylight in June:
14h and 4min
- Average daylight in July:
14h and 2min - Average daylight in August:
13h and 3min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 4min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 3min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 3min - Average sunshine in October:
6h and 3min - Average sunshine in November:
5h and 3min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).
Average sunshine days
Ullin, IL
- Average sunshine days in January:
18.6 days - Average sunshine days in February:
14.7 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
14.5 days - Average sunshine days in May:
13.8 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
21 days - Average sunshine days in November:
19.7 days - Average sunshine days in December:
19.6 days
The month with the most sunshine days is October (21 days).
The month with the least sunshine days is July (12.8 days).
Average UV index
Ullin, IL
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover
Ullin, IL
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility
Ullin, 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).
Ullin, Illinois, USA
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