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Oak Ridge weather in numbers
measured normals and 10 years of recorded weather
Oak Ridge swings 57°F across the year, from 86°F highs in July to 29°F lows in January, and December is usually the wettest month in a year that brings about 54 in of precipitation. Over 10 years of recorded weather it averages 143 days a year at 77°F or above, 56 of them at 86°F or above, 50 frost nights, and rain on 139 days.
Warmest month
July
86°F average high
Coldest month
January
29°F average low
Wettest month
December
54 in a year
Comfortable
3 months
April, May and October
Residents
29,000
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Most accurate here
European
94/100 CheckWeather Score
Warm days
143 days
a year at 77°F or above
Frost nights
50 nights
a year below 32°F
Rain days
139 days
a year with 0.04 in or more
Day counts are from the ERA5 reanalysis for Oak Ridge’s grid square, 2016 to 2025, counted the same way for every city so the numbers compare. A reanalysis square is an area, not a weather station, so it is good for counting days and not for a single day’s record.
The weather map: all three models at once
NWS, American, European side by side around Oak Ridge and nearby towns.Live rain radar →
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Oak Ridge hourly forecast: next 14 hours
consensus of the three models
Rain in the next 24 hours, model by model
each model's own hourly precipitation, side by side
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Oak Ridge 10-day forecast, out to 14 days
where the models agree, and where they split
Oak Ridge, Tennessee (TN) is at its warmest in Jul (average highs near 86°F) and coldest in Jan (lows around 29°F), with roughly 54 in of precipitation across the year. Below, compare what NWS, American, European forecast for Oak Ridge right now, and see exactly where they disagree.
average daytime high and overnight low across a typical year (1991-2020)
Jan
45°
29°
Feb
52°
32°
Mar
59°
38°
Apr
68°
48°
May
77°
57°
Jun
85°
65°
Jul
86°
68°
Aug
86°
67°
Sep
80°
60°
Oct
70°
50°
Nov
58°
40°
Dec
49°
33°
Source: 1991-2020 averages, ERA5 for this place adjusted with NASA POWER.
How Oak Ridge's weather has changed since 1995
30 years of daily data, 1995-2024, shown as change
+1.5°F
Around Oak Ridge, 2015-2024 averaged 1.5°F warmer than 1995-2004. 7 of the 10 warmest years since 1995 fall in the last ten, and the warmest was 2024.
1995each stripe is one year2024
cooler than averagearound averagewarmer than average
Days above 95°F
2 more days a year
2015-2024 against 1995-2004. Within the normal year-to-year swing
Frost nights
15 fewer nights a year
2015-2024 against 1995-2004, below 32°F
Average wind
−3%
2015-2024 against 1995-2004. Within the normal year-to-year swing
Bars: each year against the area's 30-year average. Dashed lines: the average of the first and the last ten years.
See the numbers year by year
Year
Temp vs average
Days >95°F vs avg
Frost nights vs avg
Wind vs avg
1995
−0.7°F
+17
+7
+1%
1996
−2.5°F
−9
+24
+6%
1997
−1.6°F
−7
+4
+1%
1998
+1.4°F
−2
−20
+1%
1999
+0.2°F
+3
−3
+1%
2000
−0.7°F
−3
+12
+6%
2001
−0.4°F
−8
−3
+1%
2002
+0.2°F
+6
+14
+1%
2003
−1.3°F
−9
+8
+1%
2004
−0.2°F
−9
+4
+1%
2005
±0.0°F
−1
+6
+1%
2006
±0.0°F
+5
−1
+1%
2007
+1.8°F
+15
+3
+1%
2008
−0.6°F
−4
+7
+6%
2009
−1.6°F
−9
−4
+1%
2010
−0.9°F
+11
+15
−5%
2011
±0.0°F
+5
−5
+1%
2012
+1.4°F
+6
−16
−5%
2013
−2.0°F
−9
+15
−5%
2014
−1.8°F
−9
+18
+1%
2015
+0.2°F
−9
−9
−5%
2016
+1.8°F
+17
−3
+1%
2017
+1.2°F
−7
−15
+1%
2018
+0.2°F
−9
−2
−5%
2019
+1.6°F
+8
−15
−5%
2020
+0.5°F
−6
−15
+1%
2021
+0.3°F
−4
+1
−5%
2022
±0.0°F
+1
+6
+1%
2023
+1.4°F
−3
−26
+1%
2024
+2.1°F
+9
−18
+1%
Source: NASA POWER daily data from the MERRA-2 reanalysis, 1995-2024. Each value describes a grid square of about 50 km around Oak Ridge, not a weather station, and a square that takes in sea or a large lake runs milder than the city itself. That is why this section shows change against the square's own 30-year average rather than counts you could compare with a local station. Rain and snow are left out because their long-term record in this dataset is not consistent over time. "Within the normal year-to-year swing" means the change is smaller than the usual differences between single years.
Which forecast is most accurate in Oak Ridge?
CheckWeather Score, graded against the weather that actually happened
Provider
CheckWeather-score
Temp
Wind
Rain
Run by
European ★ Best
94
/100rank #1
90±1.0°F
97±0.8 mph
9597% hit
ECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American
81
/100rank #2
86±1.4°F
95±1.5 mph
6581% hit
NOAA / NCEP (United States)College Park, Maryland, USA
The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.
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Common questions
What's the weather in Oak Ridge today?
On this page we show what NWS, American, European each forecast for Oak Ridge today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in Oak Ridge today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Oak Ridge and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for Oak Ridge?
Over the last 30 days, the European model has been the most accurate for Oak Ridge (CheckWeather Score 94/100), ahead of the American at 81. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Oak Ridge?
July is typically the warmest month in Oak Ridge, with average highs around 86°F.
How cold does Oak Ridge get?
The coldest month in Oak Ridge is January, when overnight lows average about 29°F.
How much rain does Oak Ridge get?
Oak Ridge sees roughly 54 in of precipitation a year, with December usually the wettest month.
Is Oak Ridge getting warmer?
Yes. In NASA's reanalysis for the area around Oak Ridge, 2015-2024 averaged 1.5°F warmer than 1995-2004.