Terre Haute experiences cold winters, with January and February temperatures often dropping below freezing, averaging around -1°C and -4°C respectively. As spring approaches in March, temperatures begin to rise, averaging around 8°C, but still experiencing occasional chilly days. Summer months of June, July, and August are warm, with average highs reaching 23°C, while autumn brings a return to cooler temperatures, with September's average high dipping to 20°C. In the winter months, December is slightly warmer than January and February, averaging around 5°C. Overall, Terre Haute's temperature fluctuations throughout the year result in moderate seasonal changes, with minimal extreme variations.