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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, the same as December, is an icy winter month in Olmsted, Illinois, with an average temperature fluctuating between 28.4°F (-2°C) and 41.2°F (5.1°C). January, having an average high-temperature of 41.2°F (5.1°C) and an average low-temperature of 28.4°F (-2°C), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a frosty month in Olmsted, Illinois, with an average temperature fluctuating between 31.8°F (-0.1°C) and 45.7°F (7.6°C). Olmsted commences February with an average high-temperature of a frosty 45.7°F (7.6°C), maintaining a close resemblance to the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a refreshing month in Olmsted, Illinois, with an average temperature ranging between max 56.8°F (13.8°C) and min 40.6°F (4.8°C). The start of March brings a rise in the average high-temperature, moving from a frosty 45.7°F (7.6°C) in February to a refreshing 56.8°F (13.8°C). Weather in March »
Weather in April
April is a comfortable spring month in Olmsted, Illinois, with temperature in the range of an average high of 67.6°F (19.8°C) and an average low of 50.2°F (10.1°C). Olmsted's April weather brings a rise in high-temperatures, moving from a mild 56.8°F (13.8°C) in March to a still refreshing 67.6°F (19.8°C). Weather in April »
Weather in May
May, the last month of the spring in Olmsted, is a moderately hot month, with an average temperature fluctuating between 76.6°F (24.8°C) and 59.5°F (15.3°C). The transition from April to May brings a temperature rise, with average high-temperatures increasing from an enjoyable 67.6°F (19.8°C) to a moderately hot 76.6°F (24.8°C). Weather in May »
Weather in June
June, the first month of the summer in Olmsted, is a hot month, with temperature in the range of an average low of 67.6°F (19.8°C) and an average high of 86°F (30°C). As Olmsted transitions into June, the average high-temperature is observed to rise from a moderately hot 76.6°F (24.8°C) in May to a tropical 86°F (30°C). Weather in June »
Weather in July
July, like June, is another hot summer month in Olmsted, Illinois, with an average temperature ranging between max 88.2°F (31.2°C) and min 69.8°F (21°C). July, on average, is the warmest month, registering a high temperature of 88.2°F (31.2°C) and a low of 69.8°F (21°C). The heat index value during July 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 Olmsted, Illinois, with an average temperature varying between 67.5°F (19.7°C) and 86.4°F (30.2°C). The shift into August reveals an average high-temperature of a still tropical 86.4°F (30.2°C), closely mirroring July's climate. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Olmsted, Illinois, with an average temperature ranging between max 81.5°F (27.5°C) and min 61.9°F (16.6°C). As August transitions into September, the average high-temperature rests at a warm 81.5°F (27.5°C), maintaining a close resemblance to the previous month. Weather in September »
Weather in October
October, like September, is an agreeable autumn month in Olmsted, Illinois, with an average temperature ranging between max 68.9°F (20.5°C) and min 51.1°F (10.6°C). The onset of October results in a decrease in the average high-temperature, receding from a moderately hot 81.5°F (27.5°C) in September to a pleasant 68.9°F (20.5°C). Weather in October »
Weather in November
November, the last month of the autumn in Olmsted, is also a moderate month, with an average temperature fluctuating between 40.1°F (4.5°C) and 55.4°F (13°C). The shift from October to November involves a decrease in the average high-temperature, dropping from a pleasant 68.9°F (20.5°C) to a refreshing 55.4°F (13°C). Weather in November »
Weather in December
The first month of the winter, December, is still a chilly month in Olmsted, Illinois, with an average temperature fluctuating between 33.8°F (1°C) and 45.5°F (7.5°C). December's onset corresponds with a shift in the average high-temperature, moving from a mild 55.4°F (13°C) in November to a frosty 45.5°F (7.5°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest month in Olmsted?
With average high temperatures of 41.2°F (5.1°C) and lows of 28.4°F (-2°C), January is the coldest month in Olmsted, Illinois.
How much does it rain in Olmsted?
Throughout the year, in Olmsted, Illinois, there are 156.3 rainfall days, and 36.65" (931mm) of precipitation is accumulated.
When does it snow in Olmsted?
January through April, October through December are months with snowfall in Olmsted.
How many days does it snow in Olmsted?
Throughout the year, in Olmsted, there are 11.5 snowfall days, and 4.88" (124mm) of snow is accumulated.
What are the months with the lowest UV index in Olmsted?
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Olmsted, Illinois.
What is the most humid month in Olmsted?
The months with the highest humidity in Olmsted are February, March, May and December, with an average relative humidity of 78%.
What is the snowiest month in Olmsted?
February is the month with the most snowfall. Snow falls for 3.8 days and accumulates 1.5" (38mm) of snow.
What is the month with the least sunshine in Olmsted?
With an average of 4.7h of sunshine, February has the least sunshine of the year.
When is Daylight Saving Time (DST) in Olmsted?
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 in Olmsted?
The month with the most rainfall is April, when the rain falls for 15.2 days and typically aggregates up to 4.21" (107mm) of precipitation.
When it does not snow in Olmsted?
In Olmsted, snow does not fall in May through September.
When is the highest UV index in Olmsted?
The months with the highest UV index in Olmsted, Illinois, are May through August, with an average maximum UV index of 6.
When are the longest days in Olmsted?
With an average of 14h and 42min of daylight, June has the longest days of the year.
What month has the most sunshine in Olmsted?
With an average of 10.7h of sunshine, June has the most sunshine of the year in Olmsted.
What is the warmest month in Olmsted?
The warmest temperatures occur during July, when averages reach a peak of 88.2°F (31.2°C) and a low of 69.8°F (21°C).
What is the driest month in Olmsted?
The month with the least rainfall in Olmsted, Illinois, is September, when the rain falls for 11.4 days and typically collects 1.42" (36mm) of precipitation.
What is the least humid month in Olmsted?
October is the least humid month in Olmsted, with an average relative humidity of 69%.
What is the month with the shortest days in Olmsted?
With an average of 9h and 42min of daylight, December has the shortest days of the year in Olmsted.
Average temperature
Olmsted, IL
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.2°F).
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure
Olmsted, 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:
30.05"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
Olmsted, IL
- Average wind speed in January:
9.1mph - Average wind speed in February:
9.1mph - Average wind speed in March:
9.1mph - Average wind speed in April:
9mph - Average wind speed in May:
7.6mph - Average wind speed in June:
6.4mph
- Average wind speed in July:
5.7mph - Average wind speed in August:
5.7mph - Average wind speed in September:
6.3mph - Average wind speed in October:
7.6mph - Average wind speed in November:
8.3mph - Average wind speed in December:
8.5mph
The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity
Olmsted, IL
The months with the highest relative humidity are February, March, May and December (78%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Olmsted, IL
- Average rainfall in January:
2.36" - Average rainfall in February:
3.58" - Average rainfall in March:
3.94" - Average rainfall in April:
4.21" - Average rainfall in May:
3.94" - Average rainfall in June:
2.95"
- Average rainfall in July:
2.83" - Average rainfall in August:
2.72" - Average rainfall in September:
1.42" - Average rainfall in October:
2.68" - Average rainfall in November:
3.11" - Average rainfall in December:
2.91"
The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days
Olmsted, IL
- Average rainfall days in January:
9.8 days - Average rainfall days in February:
11.4 days - Average rainfall days in March:
15.4 days - Average rainfall days in April:
15.2 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
14.7 days
- Average rainfall days in July:
15.7 days - Average rainfall days in August:
13.6 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
11.3 days - Average rainfall days in November:
10.2 days - Average rainfall days in December:
10.5 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.8 days).
Average snowfall
Olmsted, IL
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Olmsted, IL
- Average snowfall days in January:
3.4 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
1.3 days - Average snowfall days in April:
0.3 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:
1.5 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Olmsted, IL
- Average daylight in January:
10h and 0min - 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 42min).
- Average sunshine in January:
4h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 5min - 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 2min - Average sunshine in September:
9h and 4min - Average sunshine in October:
6h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days
Olmsted, IL
- Average sunshine days in January:
17.4 days - Average sunshine days in February:
13.8 days - Average sunshine days in March:
12.8 days - Average sunshine days in April:
12.8 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
13.5 days - Average sunshine days in August:
15.1 days - Average sunshine days in September:
16.5 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
18.3 days - Average sunshine days in December:
18.4 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index
Olmsted, 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
Olmsted, IL
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility
Olmsted, 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).
Olmsted, Illinois, USA
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