Climate and monthly weather forecastDayton, MO
Climate and monthly weather forecast
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 »Updated: Feb 12, 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
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.
The month with the least rainfall is January, when the rain falls for 3.5 days and typically collects 0.35" (9mm) of precipitation.
In Dayton, Missouri, during the entire year, the rain falls for 114.1 days and collects up to 13.9" (353mm) of precipitation.
January through March, May, October through December are months with snowfall.
Throughout the year, there are 11.5 snowfall days, and 2.2" (56mm) of snow is accumulated.
The month with the least sunshine is January, with an average of 5.3h of sunshine.
The months with the lowest UV index in Dayton, Missouri, are January, February, November and December, with an average maximum UV index of 2.
February is the month with the most snowfall. Snow falls for 3.8 days and accumulates 0.71" (18mm) of snow.
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.
In Dayton, Missouri, snow does not fall in April, June through September.
The most humid month is May, with an average relative humidity of 81%.
May is the month with the most rainfall in Dayton. Rain falls for 15.2 days and accumulates 2.6" (66mm) of precipitation.
May through August, with an average maximum UV index of 6, are months with the highest UV index.
The month with the longest days in Dayton is June, with an average of 14h and 48min of daylight.
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.
The month with the most sunshine is July, with an average of 10.5h of sunshine.
The least humid month is October, with an average relative humidity of 71%.
December has the shortest days of the year in Dayton, Missouri, with an average of 9h and 30min of daylight.
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).
Average pressure
Dayton, MO
- Average pressure in January:
30.17"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.9"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed
Dayton, MO
- Average wind speed in January:
9.9mph - Average wind speed in February:
10.2mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.1mph - Average wind speed in May:
8.4mph - Average wind speed in June:
8mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.6mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.5mph
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).
Average humidity
Dayton, MO
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Dayton, MO
- Average rainfall in January:
0.35" - Average rainfall in February:
0.43" - Average rainfall in March:
1.06" - Average rainfall in April:
1.34" - Average rainfall in May:
2.6" - Average rainfall in June:
1.5"
- Average rainfall in July:
1.65" - Average rainfall in August:
1.5" - Average rainfall in September:
1.34" - Average rainfall in October:
1.02" - Average rainfall in November:
0.39" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days
Dayton, MO
- Average rainfall days in January:
3.5 days - Average rainfall days in February:
5.3 days - Average rainfall days in March:
10.2 days - Average rainfall days in April:
12.3 days - Average rainfall days in May:
15.2 days - Average rainfall days in June:
13 days
- Average rainfall days in July:
13.2 days - Average rainfall days in August:
12 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
8.4 days - Average rainfall days in November:
6 days - Average rainfall days in December:
4.3 days
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).
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").
Average snowfall days
Dayton, MO
- Average snowfall days in January:
2.8 days - Average snowfall days in February:
3.8 days - Average snowfall days in March:
1.6 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0.3 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:
0.3 days - Average snowfall days in November:
0.6 days - Average snowfall days in December:
2 days
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).
Average daylight / Average sunshine
Dayton, MO
- Average daylight in January:
9h and 48min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 18min - Average daylight in June:
14h and 48min
- Average daylight in July:
14h and 30min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 6min - Average daylight in December:
9h and 30min
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).
- Average sunshine in January:
5h and 18min - Average sunshine in February:
5h and 30min - Average sunshine in March:
6h and 30min - Average sunshine in April:
8h and 24min - Average sunshine in May:
8h and 42min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 12min - Average sunshine in September:
9h and 12min - Average sunshine in October:
6h and 6min - Average sunshine in November:
5h and 42min - Average sunshine in December:
5h 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).
Average sunshine days
Dayton, MO
- Average sunshine days in January:
25.2 days - Average sunshine days in February:
18.8 days - Average sunshine days in March:
17.8 days - Average sunshine days in April:
15.8 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
13.9 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
16.6 days - Average sunshine days in September:
17 days - Average sunshine days in October:
21.5 days - Average sunshine days in November:
21.5 days - Average sunshine days in December:
25.1 days
The month with the most sunshine days is January (25.2 days).
The month with the least sunshine days is May (12.8 days).
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).
Average cloud cover
Dayton, MO
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 26).
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).
