Average weather for Dayton in January
It's cool to moderate in January in Dayton with an average temperature of 18°C. Temperatures this month range from a low of 15°C to a high of 21°C. At night, you can expect temperatures between 3°C and 10°C.
Start of January
The month of January starts in Dayton with mild temps, averaging around 18°C during the day and nights around 8°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
Mid January
By mid-January, daytime temps rise to around 19°C, with nights around 8°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of January
By the end of January, the average daytime temperature in Dayton is around 18°C, while nighttime temps are about 7°C. A shower might pop up, but overall, the weather will be dry and sunny.
In January, there is an average of 123 mm of precipitation, spread over 8 days. The wind speed is around 3 Bft, mostly coming from the South.
Dayton in January |
New York | ||
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18°C | 5°C | |
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21°C | 11°C | |
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15°C | -5°C | |
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123 mm | 97 mm | |
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8 days | 12 days |
UV index
The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.
Is January a good time to visit Dayton?
Looking for sun? January isn’t a good month to be in Dayton. The temperature is nice, but there’s too much chance of rain.
Check out the climate of Dayton for all months and discover the best travel time
Daily Temperature in January in Dayton
This chart shows the average daily high and low temperatures in January for Dayton, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in January in Dayton
The chart below shows the average daily precipitation in January for Dayton, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for January, you can expect about 8 days of precipitation in Dayton.
Daily UV index in January in Dayton
This chart shows the average daily UV index in January in Dayton, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in January in Dayton over the years
This chart shows the average temperature in January in Dayton, measured in degrees Celsius, over the past few years.
Total precipitation in January in Dayton over the years
This chart shows the average precipitation in January in Dayton, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in January for Dayton
Click on any day in January to get detailed info about the usual weather on that day in Dayton. Check out the historical temperatures and precipitation over the past 10 years on this day.































Weather experiences in January in Dayton
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Average weather in Dayton by month
Click on a month below to see detailed weather info for Dayton. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.