Between 1985 and 2022, Mecca, the holiest city in Islam, experienced a total of 181 days with temperatures above 45 degrees Celsius. Following Mecca, Al Ahsa had 167 such days, Al Qaysumah 59, and Dammam 54. This is according to a report by the National Centre for Meteorology (NCM).

During the same period, Al Qaisumah had the most dust storm occurrences with 119 days, followed by Al Ahsa with 110 days, and Rafha with 99 days.

Abha had the most thunderstorm days with 788, followed by Taif with 784 and Al Baha with 746. Khamis Mushait had the rainiest days with 363, followed by Al Baha with 320 and Taif with 295.

In terms of fog recurrence, Al Wajh had the most with 28 days, followed by Yanbu with 22 and Jeddah with 11. The report also highlighted that Dhahran recorded the highest May temperature, reaching 51 degrees Celsius in 2009. Rafha recorded the lowest temperature of 21 degrees Celsius in 2000.

The highest rainfall was recorded in Bisha in May 2013 with 96 mm, and Khamis Mushait in May 2019 with 159 mm. The highest frequency of dust storms occurred in May in Al Qaisumah 119 times, while Al Jouf recorded maximum wind speed of 115 km/h. NCM monitoring stations provided the data for the statistics.