Climate in Heilbronn: average temperature by month
In Heilbronn the warmest month is July, with 26.0 °C on average in the afternoon; the coolest is January, with 4.9 °C.
The average of the weather stations Kaiserslautern (112 km), Geisenheim (131 km) and Strasbourg-Entzheim (133 km); nearer ones count more.
| Month | Average high | Coolest to warmest day |
|---|---|---|
| January | 4.9 °C | 4.5 °C – 5.6 °C |
| February | 7.1 °C | 5.7 °C – 9.0 °C |
| March | 11.6 °C | 9.1 °C – 13.8 °C |
| April | 16.0 °C | 14.0 °C – 17.9 °C |
| May | 20.3 °C | 18.1 °C – 22.5 °C |
| June | 24.2 °C | 22.6 °C – 25.7 °C |
| July | 26.0 °C | 25.4 °C – 26.5 °C |
| August | 25.5 °C | 23.9 °C – 26.3 °C |
| September | 21.3 °C | 18.1 °C – 23.8 °C |
| October | 15.5 °C | 12.5 °C – 17.9 °C |
| November | 8.9 °C | 6.3 °C – 12.2 °C |
| December | 5.8 °C | 5.5 °C – 6.2 °C |