Ooltewah (TN) Temperature by Month
The average annual maximum temperature in Ooltewah, Tennessee, United States of America is 22°C (72°F), with daytime highs ranging from 9°C (48°F) in January to 32°C (90°F) in August. This page covers monthly averages, day-night differences, and how Ooltewah compares to cities worldwide.
Ooltewah Monthly Temperatures
The climate in Ooltewah is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 21°C (70°F) in August to -2°C (28°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Ooltewah 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 258 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Ooltewah 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.
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Ooltewah vs World: Temperature Compared
Ooltewah's average annual maximum temperature is 22°C (72°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Chicago, USA averages 15°C (59°F) annually — known for extreme seasonal swings, from bitterly cold winters to warm summers.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
What Does the Temperature Feel Like in Ooltewah?
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 the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.
In Ooltewah, January is the coolest month, with average highs of 9°C (48°F) and humidity around 70% — considered high. In August, the warmest month, temperatures average 32°C (90°F) with 76% 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.
Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round — large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.
For more on Ooltewah's weather — including monthly rainfall, sunshine hours, and humidity — visit our Ooltewah climate page.
