Chattanooga vs Decatur, Alabama Climate
99%matchChattanooga and Decatur are a 99% climate match. Very close: temperatures within 2°F (1°C), with similar rain, humidity and sun.
Chattanooga gets 58 in (1475 mm) of rain a year and Decatur 58 in (1475 mm). Chattanooga's warmest month is July, at 90°F (32°C); Decatur's is August, at 91°F (33°C).
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
ChattanoogaDecatursolid = high, dashed = low
Rain (in per month)
ChattanoogaDecatur
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Chattanooga | Decatur | Chattanooga | Decatur | Chattanooga | Decatur | |
| Jan | 51°F(10°C) | 52°F(11°C) | 31°F(0°C) | 32°F(0°C) | 5.2 in(132 mm) | 5.0 in(128 mm) |
| Feb | 55°F(13°C) | 56°F(14°C) | 34°F(1°C) | 35°F(2°C) | 5.0 in(128 mm) | 5.1 in(129 mm) |
| Mar | 64°F(18°C) | 65°F(18°C) | 40°F(5°C) | 42°F(5°C) | 5.6 in(143 mm) | 6.0 in(152 mm) |
| Apr | 73°F(23°C) | 74°F(23°C) | 48°F(9°C) | 49°F(10°C) | 5.1 in(130 mm) | 5.5 in(139 mm) |
| May | 81°F(27°C) | 82°F(28°C) | 57°F(14°C) | 58°F(15°C) | 4.3 in(110 mm) | 4.6 in(116 mm) |
| Jun | 87°F(31°C) | 88°F(31°C) | 65°F(18°C) | 66°F(19°C) | 4.6 in(116 mm) | 5.0 in(128 mm) |
| Jul | 90°F(32°C) | 91°F(33°C) | 69°F(20°C) | 69°F(21°C) | 5.2 in(131 mm) | 5.0 in(127 mm) |
| Aug | 89°F(32°C) | 91°F(33°C) | 67°F(20°C) | 68°F(20°C) | 3.7 in(94 mm) | 3.5 in(90 mm) |
| Sep | 84°F(29°C) | 86°F(30°C) | 61°F(16°C) | 62°F(17°C) | 4.6 in(117 mm) | 4.2 in(106 mm) |
| Oct | 74°F(24°C) | 75°F(24°C) | 49°F(10°C) | 50°F(10°C) | 3.5 in(90 mm) | 3.3 in(84 mm) |
| Nov | 63°F(17°C) | 64°F(18°C) | 39°F(4°C) | 40°F(4°C) | 5.0 in(126 mm) | 4.3 in(109 mm) |
| Dec | 53°F(12°C) | 54°F(12°C) | 33°F(1°C) | 34°F(1°C) | 6.2 in(158 mm) | 6.6 in(167 mm) |
1991–2020 averages, by calendar month.