Dayton (TX) Temperature by Month
Dayton, Texas, United States of America has an average annual maximum temperature of 26°C (79°F), ranging from 17°C (63°F) in January to 34°C (93°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Dayton Monthly Temperatures
Depending on the time of the year, temperatures range from very warm to mild in Dayton. At night, minimum temperatures range from 24°C (75°F) in August to 5°C (41°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Dayton by month:
From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. August, the warmest month, averages 270 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Dayton vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Dayton vs World: Temperature Compared
Dayton's average annual maximum temperature is 26°C (79°F). To put that in context, here's how it compares to a few well-known destinations:
Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters — and seasons reversed compared to Europe.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
What Does the Temperature Feel Like in Dayton?
Temperature alone doesn't tell the whole story — humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.
In Dayton, January is the coolest month, with average highs of 17°C (63°F) and humidity around 75% — considered high. In August, the warmest month, temperatures average 34°C (93°F) with 75% humidity — conditions that feel high. For a full picture, see our humidity page.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Dayton's weather — including monthly rainfall, sunshine hours, and humidity — visit our Dayton climate page.
