Climate and monthly weather forecast
Iona, OK

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Weather in January

January, like December, in Iona, Oklahoma, is another fresh winter month, with an average temperature ranging between max 50.2°F (10.1°C) and min 33.4°F (0.8°C). January, with its high-temperature average of 50.2°F (10.1°C) and a low-temperature average of 33.4°F (0.8°C), is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is also a fresh month in Iona, Oklahoma, with temperature in the range of an average high of 53.2°F (11.8°C) and an average low of 37°F (2.8°C). January's transformation into February witnesses an average high-temperature of a still cool 53.2°F (11.8°C), noting a minor change from the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is a refreshing month in Iona, Oklahoma, with temperature in the range of an average high of 63.3°F (17.4°C) and an average low of 46°F (7.8°C). As March begins, there is an increase in the average high-temperature, moving from a cool 53.2°F (11.8°C) in February to a refreshing 63.3°F (17.4°C). Weather in March »

Weather in April

April is a pleasant spring month in Iona, Oklahoma, with temperature in the range of an average low of 52.5°F (11.4°C) and an average high of 71.1°F (21.7°C). The shift from March to April is marked by a slight increase in the average high-temperature, moving from a comfortable 63.3°F (17.4°C) to an agreeable 71.1°F (21.7°C). Weather in April »

Weather in May

The last month of the spring, May, is a warm month in Iona, Oklahoma, with an average temperature varying between 60.3°F (15.7°C) and 77.5°F (25.3°C). A soft shift in the average high-temperature is noticeable in May, transitioning from a pleasant 71.1°F (21.7°C) in April to a moderately hot 77.5°F (25.3°C). Weather in May »

Weather in June

June, the first month of the summer in Iona, is a hot month, with an average temperature fluctuating between 69.8°F (21°C) and 87.1°F (30.6°C). The shift into June is accompanied by a temperature increase, with the average high-temperature rising from a moderately hot 77.5°F (25.3°C) in May to a hot 87.1°F (30.6°C). Weather in June »

Weather in July

July, the same as June, in Iona, Oklahoma, is a hot summer month, with temperature in the range of an average high of 92.1°F (33.4°C) and an average low of 72.7°F (22.6°C). The transition from June to July brings an average high-temperature of a still tropical 92.1°F (33.4°C), barely different from June's 87.1°F (30.6°C). Weather in July »

Weather in August

August, the last month of the summer in Iona, is another hot month, with an average temperature fluctuating between 72.1°F (22.3°C) and 93.4°F (34.1°C). With an average high-temperature of 93.4°F (34.1°C) and an average low-temperature of 72.1°F (22.3°C), August is the warmest month. In August, the heat index is appraised at a blisteringly hot 109.4°F (43°C). Weather in August »

Weather in September

September, the first month of the autumn in Iona, is still a warm month, with an average temperature varying between 66°F (18.9°C) and 84.6°F (29.2°C). The arrival of September suggests a slight decrease in the average high-temperature, moving from a hot 93.4°F (34.1°C) in August to a warm 84.6°F (29.2°C). Weather in September »

Weather in October

October, the same as September, in Iona, Oklahoma, is another pleasant autumn month, with an average temperature fluctuating between 54.1°F (12.3°C) and 72.3°F (22.4°C). Onset of October witnesses a reduction in the average high-temperature, falling from a moderately hot 84.6°F (29.2°C) in September to an agreeable 72.3°F (22.4°C). Weather in October »

Weather in November

The last month of the autumn, November, is another refreshing month in Iona, Oklahoma, with an average temperature ranging between min 43.7°F (6.5°C) and max 60.6°F (15.9°C). Setting in of November comes with a decrease in the average high-temperature, moving from an agreeable 72.3°F (22.4°C) in October to a moderate 60.6°F (15.9°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cool month in Iona, Oklahoma, with an average temperature varying between 50.5°F (10.3°C) and 36.3°F (2.4°C). The arrival of December indicates a decrease in the average high-temperature, moving from a refreshing 60.6°F (15.9°C) in November to a fresh 50.5°F (10.3°C). Weather in December »
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

Iona experiences its lowest temperatures in January, with an average peak of 50.2°F (10.1°C) and a low of 33.4°F (0.8°C).

What is the driest month?

January is the month with the least rainfall. Rain falls for 6.3 days and accumulates 1.34" (34mm) of precipitation.

How much does it rain in Iona?

Throughout the year, there are 129 rainfall days, and 27.91" (709mm) of precipitation is accumulated.

When does it snow?

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

How much does it snow?

In Iona, during the entire year, snow falls for 5.3 days and aggregates up to 2.6" (66mm) of snow.

What is the snowiest month?

The month with the most snowfall is February, when snow falls for 2 days and typically aggregates up to 1.3" (33mm) of snow.

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?

The most humid month is May, with an average relative humidity of 78%.

What is the wettest month?

May is the month with the most rainfall. Rain falls for 14.7 days and accumulates 4.37" (111mm) of precipitation.

When it does not snow?

In Iona, snow does not fall in May through October.

When are the longest days?

The month with the longest days is June, with an average of 14h and 24min of daylight.

When is the highest UV index?

June through August, with an average maximum UV index of 7, are months with the highest UV index.

What month has the most sunshine?

The month with the most sunshine is July, with an average of 10.9h of sunshine.

What is the warmest month?

August is the warmest month, exhibiting average temperatures of 93.4°F (34.1°C) at the peak and 72.1°F (22.3°C) at the base.

What is the least humid month?

With an average relative humidity of 61%, August is the least humid month in Iona.

What is the month with the shortest days?

With an average of 9h and 54min of daylight, December has the shortest days of the year.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 5.5h of sunshine.

When is the lowest UV index?

With an average maximum UV index of 2, December is the month with the lowest UV index.

Average temperature
Iona, OK

Average temperature - Iona, OK

The warmest month (with the highest average high temperature) is August (93.4°F).
The month with the lowest average high temperature is January (50.2°F).

The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).

Average pressure
Iona, OK

Average pressure - Iona, OK

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

Average wind speed
Iona, OK

Average wind speed - Iona, OK

The windiest months (with the highest average wind speed) are March and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

Average rainfall
Iona, OK

Average rainfall - Iona, OK

The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is January (1.34").

Average rainfall days
Iona, OK

Average rainfall days - Iona, OK

The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (6.3 days).

Average snowfall
Iona, OK

Average snowfall - Iona, OK

The month with the highest snowfall is February (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days
Iona, OK

Average snowfall days - Iona, OK

The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight / Average sunshine
Iona, OK

Average daylight / Average sunshine - Iona, OK

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days
Iona, OK

Average sunshine days - Iona, OK

The month with the most sunshine days is January (22.9 days).
The month with the least sunshine days is May (14.3 days).

Average visibility
Iona, OK

Average visibility - Iona, OK

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).

Iona, Oklahoma, USA

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