Climate and monthly weather forecast
Dayton, MO

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Weather in January

January, like December, in Dayton, Missouri, is an icy winter month, with an average temperature ranging between min 24.3°F (-4.3°C) and max 38.8°F (3.8°C). The month of January, characterized by an average high of 38.8°F (3.8°C) and a low of 24.3°F (-4.3°C), is recognized as the coldest. Weather in January »

Weather in February

The last month of the winter, February, is a chilly month in Dayton, Missouri, with an average temperature ranging between max 43.2°F (6.2°C) and min 27.9°F (-2.3°C). An average high-temperature of a chilly 43.2°F (6.2°C) marks February, exhibiting a close resemblance to the conditions in January. Weather in February »

Weather in March

March, the first month of the spring in Dayton, is a fresh month, with an average temperature varying between 38.5°F (3.6°C) and 55°F (12.8°C). As March begins, there is an increase in the average high-temperature, moving from a frosty 43.2°F (6.2°C) in February to a fresh 55°F (12.8°C). Weather in March »

Weather in April

April in Dayton, Missouri, is an enjoyable spring month, with an average temperature fluctuating between 46.9°F (8.3°C) and 65.1°F (18.4°C). The start of April signals an increase in the average high-temperature, moving from a fresh 55°F (12.8°C) in March to an enjoyable 65.1°F (18.4°C). Weather in April »

Weather in May

May, the last month of the spring in Dayton, is an agreeable month, with an average temperature varying between 56.3°F (13.5°C) and 72.9°F (22.7°C). The onset of May introduces a subtle rise in the average high-temperature, nudging from a refreshing 65.1°F (18.4°C) in April to a pleasant 72.9°F (22.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Dayton, Missouri, with an average temperature varying between 83.3°F (28.5°C) and 66.4°F (19.1°C). Dayton in June sees a temperature change, with average high-temperatures moving from an agreeable 72.9°F (22.7°C) in May to a moderately hot 83.3°F (28.5°C). Weather in June »

Weather in July

July in Dayton, Missouri, is a tropical summer month, with temperature in the range of an average low of 68.9°F (20.5°C) and an average high of 86.5°F (30.3°C). Dayton records the warmest temperatures in July, averaging a high of 86.5°F (30.3°C) and a low of 68.9°F (20.5°C). July's mean heat index is evaluated at a fiery hot 100.4°F (38°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Dayton, Missouri, with an average temperature fluctuating between 84.9°F (29.4°C) and 65.8°F (18.8°C). As Dayton, Missouri, transitions into August, the average high-temperature stands at a moderately hot 84.9°F (29.4°C), offering little variation from the preceding month. Weather in August »

Weather in September

September, the first month of the autumn in Dayton, is also a moderately hot month, with an average temperature fluctuating between 78.1°F (25.6°C) and 59.9°F (15.5°C). The move into September indicates a slight reduction in the average high-temperature, down from August's warm 84.9°F (29.4°C) to a still moderately hot 78.1°F (25.6°C). Weather in September »

Weather in October

October, like September, in Dayton, Missouri, is another comfortable autumn month, with an average temperature fluctuating between 65.7°F (18.7°C) and 48.2°F (9°C). Dayton's transition into October involves a shift in temperature, receding from a moderately hot 78.1°F (25.6°C) in September to an enjoyable 65.7°F (18.7°C). Weather in October »

Weather in November

November, the last month of the autumn in Dayton, is another cool month, with an average temperature fluctuating between 37.8°F (3.2°C) and 53.6°F (12°C). In Dayton, entering November brings a temperature decrement, reducing from October's refreshing 65.7°F (18.7°C) to a fresh 53.6°F (12°C). Weather in November »

Weather in December

December, the first month of the winter in Dayton, is also a frosty month, with an average temperature varying between 42.8°F (6°C) and 28.9°F (-1.7°C). As December begins, there is a decrease in the average high-temperature, falling from a cool 53.6°F (12°C) in November to a chilly 42.8°F (6°C). Weather in December »
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Frequently asked questions

What time of the year is the coldest in Dayton?

January, with average temperatures reaching a high of 38.8°F (3.8°C) and a low of 24.3°F (-4.3°C), is the coldest month in Dayton.

What is the driest month in Dayton?

The month with the least rainfall is January, when the rain falls for 3.5 days and typically collects 0.35" (9mm) of precipitation.

How much does it rain in Dayton?

In Dayton, Missouri, during the entire year, the rain falls for 114.1 days and collects up to 13.9" (353mm) of precipitation.

When does it snow in Dayton?

January through March, May, October through December are months with snowfall.

How many days does it snow in Dayton?

Throughout the year, there are 11.5 snowfall days, and 2.2" (56mm) of snow is accumulated.

What is the month with the least sunshine in Dayton?

The month with the least sunshine is January, with an average of 5.3h of sunshine.

When is the lowest UV index in Dayton?

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

When does it snow the most in Dayton?

February is the month with the most snowfall. Snow falls for 3.8 days and accumulates 0.71" (18mm) of snow.

When is Daylight Saving Time (DST) in Dayton?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Dayton, Missouri, 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 Dayton?

In Dayton, Missouri, snow does not fall in April, June through September.

What is the most humid month in Dayton?

The most humid month is May, with an average relative humidity of 81%.

What is the wettest month in Dayton?

May is the month with the most rainfall in Dayton. Rain falls for 15.2 days and accumulates 2.6" (66mm) of precipitation.

What are the months with the highest UV index in Dayton?

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

When are the longest days in Dayton?

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

What part of the year is the hottest in Dayton?

Dayton's July weather, with an average high temperature of 86.5°F (30.3°C) and an average low temperature of 68.9°F (20.5°C), tends to be the warmest of the year.

What month has the most sunshine in Dayton?

The month with the most sunshine is July, with an average of 10.5h of sunshine.

What is the least humid month in Dayton?

The least humid month is October, with an average relative humidity of 71%.

What is the month with the shortest days in Dayton?

December has the shortest days of the year in Dayton, Missouri, with an average of 9h and 30min of daylight.

Average temperature
Dayton, MO

Average temperature - Dayton, 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 (38.8°F).

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure
Dayton, MO

Average pressure - Dayton, MO

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed
Dayton, MO

Average wind speed - Dayton, MO

The windiest month (with the highest average wind speed) is March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average rainfall
Dayton, MO

Average rainfall - Dayton, MO

The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.35").

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Average rainfall days
Dayton, MO

Average rainfall days - Dayton, MO

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (3.5 days).

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Average snowfall
Dayton, MO

Average snowfall - Dayton, MO

The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, June, July, August and September (0").

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Average snowfall days
Dayton, MO

Average snowfall days - Dayton, MO

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight / Average sunshine
Dayton, MO

Average daylight / Average sunshine - Dayton, 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 month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).

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Average sunshine days
Dayton, MO

Average sunshine days - Dayton, MO

The month with the most sunshine days is January (25.2 days).
The month with the least sunshine days is May (12.8 days).

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Average UV index
Dayton, MO

Average UV index - Dayton, MO

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, November and December (UV index 2).

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Average visibility
Dayton, MO

Average visibility - Dayton, 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).

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Dayton, Missouri, USA

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