The month of May can be characterized as both temperature- and precipitation-deficient. Following a warm end to April, a significant cold spell began on May 5. Minimum ground-level temperatures dropped below freezing, and this night-time cooling persisted for nearly 10 days. Average daily temperatures remained mostly below 12 °C throughout the month. A slight warming occurred at the end of May, with average daily temperatures rising to nearly 17 °C.
