January weather forecast and climate
Dayton, OH

The Maimi and Mad rivers converge to flow through Dayton city, Ohio, viewed from above
The Maimi and Mad rivers converge to flow through Dayton city, Ohio, viewed from above

What is the coldest month in Dayton?

January is the coldest month, with an average high-temperature of 34.7°F (1.5°C) and an average low-temperature of 20.3°F (-6.5°C).

What is the temperature in January in Dayton?

In Dayton, in January, the average high-temperature is 34.7°F (1.5°C), and the average low-temperature is 20.3°F (-6.5°C).

How much does it rain in Dayton in January?

In Dayton, in January, it is raining for 12.6 days, with typically 2.7" (68.8mm) of accumulated precipitation.

How much does it snow in Dayton in January?

In Dayton, in January, snow falls for 6.3 days, with typically accumulated 7.9" (200.7mm) of snow.

What is the snowiest month in Dayton?

January is the month with the most snowfall in Dayton, Ohio. Snow falls for 6.3 days and accumulates 7.9" (200.7mm) of snow.
Average temperature in January - Dayton, OH
  • Average high temperature in January: 34.7°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.7°F).

  • Average low temperature in January: 20.3°F

The month with the highest average low temperature is July (64.5°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).

Average humidity in January - Dayton, OH
  • Average humidity in January: 72.7%

The month with the highest relative humidity is December (75.8%).
The month with the lowest relative humidity is April (64.2%).

Average rainfall in January - Dayton, OH
  • Average rainfall in January: 2.7"

The wettest month (with the highest rainfall) is May (4.7").
The driest month (with the lowest rainfall) is February (2.2").

Average rainfall days in January - Dayton, OH
  • Average rainfall days in January: 12.6 days

The month with the highest number of rainy days is May (13.7 days).
The month with the lowest number of rainy days is August (8.4 days).

Average snowfall in January - Dayton, OH
  • Average snowfall in January: 7.9"

The month with the highest snowfall is January (7.9").
Months with the lowest snowfall are May, June, July, August and September (0").

Average snowfall days in January - Dayton, OH
  • Average snowfall days in January: 6.3 days

The month with the highest number of snowfall days is January (6.3 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average daylight in January / Average sunshine in January - Dayton, OH
  • Average daylight in January: 9.7h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.4h).

  • Average sunshine in January: 4.3h

The month with most sunshine is June (Average sunshine: 9.8h).
The month with least sunshine is December (Average sunshine: 3.2h).

Average UV index in January - Dayton, OH
  • Average UV index in January: 2

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January, November and December (UV index 2).

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