Climate and monthly weather forecast
Ionia, MO

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Weather in January

January, like December, in Ionia, Missouri, is another cold winter month, with temperature in the range of an average low of 23.5°F (-4.7°C) and an average high of 38.1°F (3.4°C). Ionia's January weather, with an average high temperature of 38.1°F (3.4°C) and an average low temperature of 23.5°F (-4.7°C), tends to be the coldest of the year. Weather in January »

Weather in February

February, the last month of the winter in Ionia, is also an icy month, with an average temperature varying between 42.4°F (5.8°C) and 27.5°F (-2.5°C). February reports an average high-temperature of a still icy 42.4°F (5.8°C), slightly varied from January's 38.1°F (3.4°C). Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Ionia, Missouri, with an average temperature ranging between min 38.1°F (3.4°C) and max 55°F (12.8°C). As February transitions into March, Ionia sees a rise in the average high-temperature, moving from a wintry 42.4°F (5.8°C) to a fresh 55°F (12.8°C). Weather in March »

Weather in April

April is an enjoyable spring month in Ionia, Missouri, with temperature in the range of an average low of 46.6°F (8.1°C) and an average high of 64.9°F (18.3°C). With the onset of April, Ionia sees a temperature rise, with the average high-temperature moving from March's fresh 55°F (12.8°C) to a comfortable 64.9°F (18.3°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Ionia, Missouri, with an average temperature fluctuating between 73°F (22.8°C) and 55.9°F (13.3°C). As Ionia enters May, the average high-temperature marginally increases from the a comfortable 64.9°F (18.3°C) of April to a pleasant 73°F (22.8°C). Weather in May »

Weather in June

June, the first month of the summer in Ionia, is a warm month, with an average temperature ranging between max 83.5°F (28.6°C) and min 65.8°F (18.8°C). The transition from May to June brings a temperature rise, with average high-temperatures increasing from a pleasant 73°F (22.8°C) to a warm 83.5°F (28.6°C). Weather in June »

Weather in July

July is a hot summer month in Ionia, Missouri, with an average temperature varying between 86.5°F (30.3°C) and 68.5°F (20.3°C). July, marked by an average high-temperature of 86.5°F (30.3°C) and a low-temperature of 68.5°F (20.3°C), is the warmest month. For most parts of July, the heat index is evaluated at a torrid 100.4°F (38°C). Weather in July »

Weather in August

August, the last month of the summer in Ionia, is another warm month, with temperature in the range of an average high of 84.7°F (29.3°C) and an average low of 65.8°F (18.8°C). Entering August, Ionia's average high-temperature reads a warm 84.7°F (29.3°C), indicating a close resemblance to the previous month's climate. Weather in August »

Weather in September

September, the first month of the autumn in Ionia, is also a moderately hot month, with an average temperature fluctuating between 59.7°F (15.4°C) and 78.8°F (26°C). The advent of September brings a slight shift in average high-temperature, moving from 84.7°F (29.3°C) in August to a still moderately hot 78.8°F (26°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Ionia, Missouri, with an average temperature ranging between max 65.5°F (18.6°C) and min 48°F (8.9°C). The average high-temperature decreases in October, shifting from a warm 78.8°F (26°C) in September to a refreshing 65.5°F (18.6°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Ionia, Missouri, with an average temperature ranging between min 37°F (2.8°C) and max 53.1°F (11.7°C). A moderate decline in the average high-temperature is seen during November, decreasing from an enjoyable 65.5°F (18.6°C) in October to a fresh 53.1°F (11.7°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Ionia, Missouri, with an average temperature ranging between min 28.6°F (-1.9°C) and max 42.3°F (5.7°C). Start of December brings a shift in the average high-temperature, falling from November's fresh 53.1°F (11.7°C) to an icy 42.3°F (5.7°C). Weather in December »
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest?

January is the month when Ionia sees the average lowest temperatures, with a high of 38.1°F (3.4°C) and a low of 23.5°F (-4.7°C).

What is the driest month?

The month with the least rainfall is January, when the rain falls for 5.5 days and typically collects 0.87" (22mm) of precipitation.

How much does it rain?

Throughout the year, there are 130 rainfall days, and 21.81" (554mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through May, November and December.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 5.2 days and accumulates 1.77" (45mm) of snow.

How many days does it snow?

Throughout the year, there are 19.3 snowfall days, and 5.39" (137mm) of snow is accumulated.

What is the month with the least sunshine?

With an average of 4.9h of sunshine, January has the least sunshine of the year.

When is the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

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 most humid month?

With an average relative humidity of 81%, May is the most humid month in Ionia.

What is the rainiest month?

The month with the most rainfall is May, when the rain falls for 15 days and typically aggregates up to 3.27" (83mm) of precipitation.

When it does not snow?

In Ionia, snow does not fall in June through October.

When are the longest days?

The month with the longest days is June, with an average of 14h and 48min of daylight.

What are the months with the most sunshine?

The months with the most sunshine are June and July, with an average of 10.2h of sunshine.

When is the highest UV index?

June through August, with an average maximum UV index of 6, are months with the highest UV index.

What time of the year is the hottest?

July is the warmest month of the year, registering average temperatures as high as 86.5°F (30.3°C) and as low as 68.5°F (20.3°C).

What is the least humid month?

October is the least humid month, with an average relative humidity of 72%.

What is the month with the shortest days in Ionia?

With an average of 9h and 30min of daylight, December has the shortest days of the year.

Average temperature
Ionia, MO

Average temperature - Ionia, MO

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.1°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 (23.5°F).

Average pressure
Ionia, MO

Average pressure - Ionia, MO

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed
Ionia, MO

Average wind speed - Ionia, MO

The windiest month (with the highest average wind speed) is March (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).

Average rainfall
Ionia, MO

Average rainfall - Ionia, MO

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is January (0.87").

Average rainfall days
Ionia, MO

Average rainfall days - Ionia, MO

The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (5.5 days).

Average snowfall
Ionia, MO

Average snowfall - Ionia, MO

The month with the highest snowfall is January (1.77").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days
Ionia, MO

Average snowfall days - Ionia, MO

The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Ionia, MO

Average daylight / Average sunshine - Ionia, MO

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 30min).

The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).

Average sunshine days
Ionia, MO

Average sunshine days - Ionia, MO

The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is May (12.9 days).

Average UV index
Ionia, MO

Average UV index - Ionia, MO

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 visibility
Ionia, MO

Average visibility - Ionia, MO

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).

Ionia, Missouri, USA

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