Las Palmas has a desert climate (BWh) with warm dry summers and warm enough winters to classify it as a Tropical climate. Its average annual temperature is 21.2 °C–28 °C during the day and 18 °C at night. In January, the coldest month, the temperature typically ranges from 19 to 23 C (and sometimes more) during the day, and around 15 to 16 C at night, with an average sea temperature at 20 °C. In the warmest months — August and September — the temperature typically ranges from 27 to 30 C during the day, above 21 °C at night, with the average sea temperature at 23 °C. Large fluctuations in temperature are rare. August 1990 was the warmest month on record, with the average maximum temperature of the month during the day being 30.6 °C. The highest temperature ever recorded was 44.2 °C, and the coldest temperature ever recorded was 9.4 °C. The highest wind speed ever recorded was on 28 November 2005, measuring 113 km/h. Las Palmas city has never recorded any snow or sleet. Annual average relative humidity is 66%, ranging from 64% in March to 69% in October. The amount of annual sunshine hours is above 2,800 per year, from around 190 in winter (average of 6 hours a day) to around 300 in summer (average of 10 hours a day). It rains on average only 22 days a year, with total precipitation per year of only 151 mm.