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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 Ruma, Illinois, is a wintry winter month, with an average temperature ranging between max 39°F (3.9°C) and min 25.2°F (-3.8°C). In Ruma, January is the month with the lowest recorded average temperatures, measuring a high of 39°F (3.9°C) and a low of 25.2°F (-3.8°C). Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Ruma, Illinois, with an average temperature ranging between min 28.8°F (-1.8°C) and max 43.7°F (6.5°C). Ruma indicates an average high-temperature of a chilly 43.7°F (6.5°C) in February, showing minor variation from January's 39°F (3.9°C). Weather in February »
Weather in March
March, the first month of the spring in Ruma, is a fresh month, with an average temperature fluctuating between 55.2°F (12.9°C) and 38.7°F (3.7°C). Ruma's March weather brings a rise in high-temperatures, moving from a frosty 43.7°F (6.5°C) in February to a fresh 55.2°F (12.9°C). Weather in March »
Weather in April
April in Ruma, Illinois, is a refreshing spring month, with an average temperature varying between 48°F (8.9°C) and 65.8°F (18.8°C). The onset of April brings a rise in the average high-temperature, elevating from a fresh 55.2°F (12.9°C) in March to a comfortable 65.8°F (18.8°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in Ruma, Illinois, with an average temperature varying between 57.7°F (14.3°C) and 75.4°F (24.1°C). The shift into May is accompanied by a temperature increase, with the average high-temperature rising from an enjoyable 65.8°F (18.8°C) in April to a warm 75.4°F (24.1°C). Weather in May »
Weather in June
The first month of the summer, June, is still a warm month in Ruma, Illinois, with an average temperature fluctuating between 85.1°F (29.5°C) and 66.4°F (19.1°C). June's onset witnesses a shift in the average high-temperature, moving from 75.4°F (24.1°C) in May to a still moderately hot 85.1°F (29.5°C). Weather in June »
Weather in July
July in Ruma, Illinois, is a tropical summer month, with an average temperature fluctuating between 68.5°F (20.3°C) and 87.3°F (30.7°C). Ruma's warmest month, July, generally records average temperatures ranging from a high of 87.3°F (30.7°C) to a low of 68.5°F (20.3°C). In July, the average heat index is computed to be a very hot 102.2°F (39°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Ruma, Illinois, with an average temperature varying between 66°F (18.9°C) and 85.5°F (29.7°C). The onset of August marks an average high-temperature of a warm 85.5°F (29.7°C), hardly differing from July's 87.3°F (30.7°C). Weather in August »
Weather in September
September, the first month of the autumn in Ruma, is still a warm month, with an average temperature fluctuating between 60.3°F (15.7°C) and 79.7°F (26.5°C). September indicates a minor shift in the average high-temperature, from August's 85.5°F (29.7°C) to a still moderately hot 79.7°F (26.5°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Ruma, Illinois, with an average temperature fluctuating between 67.1°F (19.5°C) and 49.1°F (9.5°C). October's onset brings a reduction in the average high-temperature, from a moderately hot 79.7°F (26.5°C) in September to a refreshing 67.1°F (19.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Ruma, is also a fresh month, with an average temperature fluctuating between 53.8°F (12.1°C) and 38.5°F (3.6°C). The move into November indicates a reduction in the average high-temperature, down from October's refreshing 67.1°F (19.5°C) to a fresh 53.8°F (12.1°C). Weather in November »
Weather in December
December, the first month of the winter in Ruma, is also a frosty month, with temperature in the range of an average low of 31.1°F (-0.5°C) and an average high of 43.5°F (6.4°C). In Ruma, the beginning of December is marked by a lowered average high-temperature, shifting from November's cool 53.8°F (12.1°C) to a chilly 43.5°F (6.4°C). Weather in December »
Updated: Aug 26, 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 are the coldest months in Ruma?
January is the coldest month, with the temperature often reaching an average high of 39°F (3.9°C) and an average low of 25.2°F (-3.8°C).
How much does it rain?
Throughout the year, there are 138.9 rainfall days, and 26.81" (681mm) of precipitation is accumulated.
When does it snow?
Months with snowfall in Ruma are January through March, November and December.
What is the snowiest month?
January is the month with the most snowfall. Snow falls for 5.8 days and accumulates 2.01" (51mm) of snow.
How many days does it snow?
Throughout the year, there are 16.7 snowfall days, and 6.38" (162mm) of snow is accumulated.
What is the month with the least sunshine?
The month with the least sunshine in Ruma is January, with an average of 4.7h of sunshine.
What is the month with the lowest UV index?
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2.
What is the driest month?
February is the month with the least rainfall. Rain falls for 8.3 days and accumulates 1.42" (36mm) of precipitation.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Ruma, 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.
When it does not snow in Ruma?
In Ruma, snow does not fall in April through October.
What is the most humid month?
The most humid month is May, with an average relative humidity of 79%.
What is the rainiest month?
The month with the most rainfall in Ruma is May, when the rain falls for 15.3 days and typically aggregates up to 3.35" (85mm) of precipitation.
What are the months with the highest UV index?
May through August, with an average maximum UV index of 6, are months with the highest UV index in Ruma.
When are the longest days?
With an average of 14h and 48min of daylight, June has the longest days of the year.
What month has the most sunshine?
The month with the most sunshine is June, with an average of 10.6h of sunshine.
What is the warmest month?
The warmest month is July, with an average high-temperature of 87.3°F (30.7°C) and an average low-temperature of 68.5°F (20.3°C).
What is the least humid month in Ruma?
With an average relative humidity of 71%, October is the least humid month.
What is the month with the shortest days?
The month with the shortest days in Ruma is December, with an average of 9h and 36min of daylight.
Average temperature
Ruma, IL
The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure
Ruma, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"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:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Ruma, IL
- Average wind speed in January:
9.4mph - Average wind speed in February:
9.3mph - Average wind speed in March:
9.1mph - Average wind speed in April:
8.9mph - Average wind speed in May:
7.3mph - Average wind speed in June:
6.5mph
- Average wind speed in July:
5.5mph - Average wind speed in August:
5.5mph - Average wind speed in September:
6mph - Average wind speed in October:
7.8mph - Average wind speed in November:
8.5mph - Average wind speed in December:
8.6mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity
Ruma, IL
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Ruma, IL
- Average rainfall in January:
1.77" - Average rainfall in February:
1.42" - Average rainfall in March:
2.13" - Average rainfall in April:
2.95" - Average rainfall in May:
3.35" - Average rainfall in June:
2.95"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days
Ruma, IL
- Average rainfall days in January:
6.6 days - Average rainfall days in February:
8.3 days - Average rainfall days in March:
13.3 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
14.2 days
- Average rainfall days in July:
16.2 days - Average rainfall days in August:
13.7 days - Average rainfall days in September:
11.8 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
8.6 days - Average rainfall days in December:
7.6 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is January (6.6 days).
Average snowfall
Ruma, IL
The month with the highest snowfall is January (2.01").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Ruma, IL
- Average snowfall days in January:
5.8 days - Average snowfall days in February:
4.8 days - Average snowfall days in March:
1.8 days - Average snowfall days in April:
0.2 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 days - Average snowfall days in November:
1.2 days - Average snowfall days in December:
2.8 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight / Average sunshine
Ruma, 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 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 3min - 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:
10h and 1min - Average daylight in December:
9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
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 5min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 4min - Average sunshine in May:
9h and 2min - Average sunshine in June:
10h and 4min
- Average sunshine in July:
10h and 3min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days
Ruma, IL
- Average sunshine days in January:
20.2 days - Average sunshine days in February:
16.2 days - Average sunshine days in March:
15 days - Average sunshine days in April:
14.4 days - Average sunshine days in May:
13.5 days - Average sunshine days in June:
13.3 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
14.5 days - Average sunshine days in September:
16.3 days - Average sunshine days in October:
20 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
20.5 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is July (12.3 days).
Average UV index
Ruma, 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
Ruma, IL
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility
Ruma, 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).
Ruma, Illinois, USA
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