Norfolk Island's marine subtropical climate means that the weather is best described as mild. Norfolk Island's weather and climate is mostly steady year round with temperatures rarely falling below 10°C or rising higher than 26 °C although the maximum temperature ever recorded reached 28.4 °C while the absolute minimum temperature came in at just 6.2 °C.
Norfolk Island's average annual rainfall receives more than 1300mm of precipitation each year, with much of the rainfall received from April to August, although other months also regularly receive a significant amount of rainfall. The local refer to these months as 'wet ones'. Although the summer months are long and enjoyably warm, the winter months which fall from June to August are always much wetter than the rest of the year, however the climate remains mild.
Despite the mild climate, due to the level of rainfall humidity is generally high, reaching 74-79% by 9 am and 71-74% at 3 pm. Most of Norfolk Island's thunderstorms occur during winter and spring, with a total of approximately 12 storms occurring each year. The island also experiences an average of 1 hailstorm annually and although cyclones almost never hit the island itself, they are known to impact the weather conditions, particularly earlier in the year.