NOAA GHCND · LIVE

Weather on August 27

Chattanooga, TN

55 Years of Data

Avg High
90°F
Avg Low
69°F
Warmest
2023
86°F avg
Coldest
2025
68°F avg

About This Date

August 27th in Chattanooga, TN typically brings hot summer weather, with average highs around 90°F and lows near 69°F. Over 55 years of records, the warmest August 27th was in 2023 (86°F average), while the coldest was 2025 (68°F) — a 18°F range across recorded history. Rain or other precipitation has occurred on about 31% of August 27th dates historically, with the wettest August 27th recording 4.17" of rain. The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.

The last decade has been 1.9°F warmer on this date compared to 20-30 years ago.

Planning for August 27th in Chattanooga, TN? Stay hydrated and seek shade during peak afternoon hours. Consider bringing rain gear or an umbrella.

YearHighLowAvgPrecipSnow
2025coldest81°55°68°
202497°65°81°
2023warmest96°76°86°
202292°69°80°
202192°73°82°
202091°75°83°0.03"
201987°71°79°0.05"
201891°69°80°
201790°67°78°
201694°73°83°
201585°66°75°
201491°67°79°
201390°66°78°
201292°67°79°
201196°70°83°
201093°71°82°
200981°69°75°1.88"
200880°72°76°0.13"
200798°72°85°
200693°71°82°
200588°71°79°
200490°68°79°
200393°72°82°1.32"
200284°64°74°
200187°69°78°
200083°68°75°4.17"
199989°66°78°
199893°68°81°
199791°67°79°
199685°67°76°
199589°73°81°0.1"
199489°67°78°
199398°72°85°0.03"
199283°68°75°1.93"
199189°71°80°
199098°71°85°
198986°71°79°
198892°62°77°
198795°71°83°
198685°70°77°0.18"
198580°69°75°
198484°69°77°0.18"
198396°70°83°
198289°69°79°1.35"
198186°64°75°
198091°64°78°
197987°72°79°
197888°70°79°0.33"
197791°74°82°0.1"
197686°70°78°0.08"
197593°70°81°0.84"
197490°69°79°0.05"
197392°67°79°
197285°62°73°
197189°68°79°
55 years of data from CHATTANOOGA AP

Chattanooga, TN Temperature Range by Month

Average monthly highs and lows. The shaded band shows the typical daily temperature range.

20°40°60°80°100°JFMAMJJASOND
Avg high Avg low

Chattanooga, TN Monthly Precipitation

Average rainfall and snowfall per month, in inches.

0"7.1"14.2"JFMAMJJASOND1.9"0"
Rain (in) Snow (in)

Chattanooga, TN Daily Temperature Calendar

Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.

151015202531JanFebMarAprMayJunJulAugSepOctNovDec
Cooler
Hotter
20°40°60°80°100°

Best Time to Visit Chattanooga, TN

Chattanooga, TN has no months that meet our "pleasant" threshold — every season has tradeoffs.

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Pleasant (65-82°F, ≤2.5" rain) Mild Less ideal

Browse Weather History

Weather data provided by NOAA Climate Data Online. Not for critical planning.

📬 Free weekly newsletter

This week in weather history.

Five notable weather anniversaries from the week ahead — deadliest tornadoes, record temps, historic storms — every Sunday. No spam, unsubscribe anytime.

4,200+ readers · Sunday delivery