Weather on April 20
Chattanooga, TN
55 Years of Data
About This Date
April 20th in Chattanooga, TN typically brings pleasant spring weather, with average highs around 75°F and lows near 51°F. Over 56 years of records, the warmest April 20th was in 2002 (79°F average), while the coldest was 1983 (42°F) — a 37°F range across recorded history. Rain or other precipitation has occurred on about 34% of April 20th dates historically, with the wettest April 20th recording 3.66" of rain. The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
The last decade has been 1.4°F cooler on this date compared to 20-30 years ago.
Planning for April 20th in Chattanooga, TN? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2026 | 77° | 41° | 59° | — | — |
| 2025 | 85° | 61° | 73° | — | — |
| 2024 | 71° | 60° | 66° | — | — |
| 2023 | 86° | 50° | 68° | — | — |
| 2022 | 72° | 39° | 55° | — | — |
| 2021 | 76° | 46° | 61° | — | — |
| 2020 | 75° | 53° | 64° | 2.31" | — |
| 2019 | 51° | 43° | 47° | 0.05" | — |
| 2018 | 69° | 42° | 56° | — | — |
| 2017 | 82° | 64° | 73° | 0.69" | — |
| 2016 | 85° | 56° | 70° | — | — |
| 2015 | 74° | 56° | 65° | 0.36" | — |
| 2014 | 79° | 44° | 61° | — | — |
| 2013 | 65° | 37° | 51° | — | — |
| 2012 | 73° | 56° | 64° | — | — |
| 2011 | 79° | 62° | 70° | 1.8" | — |
| 2010 | 65° | 54° | 59° | 0.61" | — |
| 2009 | 67° | 47° | 57° | 0.05" | — |
| 2008 | 72° | 46° | 59° | — | — |
| 2007 | 74° | 42° | 58° | — | — |
| 2006 | 75° | 59° | 67° | 0.23" | — |
| 2005 | 81° | 48° | 64° | — | — |
| 2004 | 81° | 56° | 68° | — | — |
| 2003 | 73° | 62° | 68° | — | — |
| 2002warmest | 89° | 69° | 79° | — | — |
| 2001 | 74° | 43° | 58° | — | — |
| 2000 | 83° | 52° | 67° | 0.25" | — |
| 1999 | 80° | 50° | 65° | 0.05" | — |
| 1998 | 65° | 46° | 55° | — | — |
| 1997 | 69° | 42° | 56° | — | — |
| 1996 | 70° | 57° | 63° | 3.66" | — |
| 1995 | 79° | 62° | 70° | 0.25" | — |
| 1994 | 87° | 55° | 71° | — | — |
| 1993 | 70° | 59° | 64° | 1.93" | — |
| 1992 | 76° | 61° | 68° | 2.06" | — |
| 1991 | 64° | 53° | 59° | 0.13" | — |
| 1990 | 76° | 58° | 67° | — | — |
| 1989 | 77° | 50° | 64° | — | — |
| 1988 | 72° | 33° | 52° | — | — |
| 1987 | 88° | 50° | 69° | — | — |
| 1986 | 69° | 56° | 62° | 0.86" | — |
| 1985 | 84° | 55° | 70° | — | — |
| 1984 | 52° | 45° | 48° | 1.7" | — |
| 1983coldest | 56° | 28° | 42° | — | — |
| 1982 | 67° | 54° | 60° | — | — |
| 1981 | 74° | 55° | 64° | 0.46" | — |
| 1980 | 79° | 46° | 62° | — | — |
| 1979 | 82° | 44° | 63° | — | — |
| 1978 | 57° | 46° | 52° | — | — |
| 1977 | 81° | 56° | 68° | — | — |
| 1976 | 87° | 51° | 69° | 0.05" | — |
| 1975 | 69° | 35° | 52° | — | — |
| 1974 | 77° | 41° | 59° | — | — |
| 1973 | 82° | 59° | 71° | — | — |
| 1972 | 82° | 55° | 69° | — | — |
| 1971 | 89° | 55° | 72° | — | — |
Chattanooga, TN Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
Chattanooga, TN Monthly Precipitation
Average rainfall and snowfall per month, in inches.
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.
Best Time to Visit Chattanooga, TN
Chattanooga, TN has no months that meet our "pleasant" threshold — every season has tradeoffs.