Climate Trends in Saudi Arabia

• In Saudi Arabia, the longest run of hot days in a row in the data is 184 days, at Al-Madinah (Saudi Arabia), from 26 April 1996 to 26 October 1996.
• In Saudi Arabia, the longest run of days in a row at or above 40 C in the data is 147 days, at Sharurah (Saudi Arabia), from 28 April 2010 to 21 September 2010.
• In Saudi Arabia, the longest run of frost days in a row in the data is 9 days, at Turaif (Saudi Arabia), from 16 December 1989 to 24 December 1989.
• In Saudi Arabia, the longest run of dry days in a row in the data is 308 days, at Jeddah (King Abdul (Saudi Arabia), in 1988.
• In Saudi Arabia, the longest run of wet days in a row in the data is 8 days, at Jeddah (King Abdul (Saudi Arabia), in 1996.
• In Saudi Arabia, the longest run of longest run of nights at or above 25 c in the data is 146 days, at Dhahran (Saudi Arabia), from 15 May 1951 to 7 October 1951.

Longest run of days at or above 35 C

Consecutive days with a daily maximum at or above 35 C (95 F).

Longest run of days at or above 40 C

Consecutive days with a daily maximum at or above 40 C (104 F).

Longest run of frost days (minimum at or below 0 C)

Consecutive days with a daily minimum at or below 0 C (32 F).

Longest dry spell (days under 1 mm of rain), within one year

Consecutive days with less than 1 mm (0.04 in) of rain, the longest run within a year. The dates are not kept, so the list gives the year (within the year).

Longest wet spell (days with 1 mm or more of rain), within one year

Consecutive days with 1 mm (0.04 in) or more of rain, the longest run within a year. The dates are not kept, so the list gives the year (within the year).

Longest run of nights at or above 25 C

A run belongs to the year it started in, even when it ran on into the next year. A station appears once per list, with its longest run in a complete year. Dry and wet spells are the longest run within a year. Lists use complete years only, so a long run in a year with gaps in the record is not counted.

• In Saudi Arabia, the largest reported one day rise in the daily maximum is 15.0 C (27.0 F), at Qaisumah (Saudi Arabia) on 22 February 1974.
• In Saudi Arabia, the largest reported one day drop in the daily maximum is 19.0 C (34.2 F), at Al-Madinah (Saudi Arabia) on 2 November 2008.
• In Saudi Arabia, the largest reported one day rise in the daily minimum is 14.0 C (25.2 F), at Guriat (Saudi Arabia) on 19 December 2004.
• In Saudi Arabia, the largest reported one day drop in the daily minimum is 14.0 C (25.2 F), at Sharurah (Saudi Arabia) on 27 February 1990.
• In Saudi Arabia, the largest reported range between the high and the low of one day is 29.0 C (52.2 F), at Al-Madinah (Saudi Arabia) on 12 December 1977.
• In Saudi Arabia, the smallest reported range between the high and the low of one day is 0.6 C (1.1 F), at Gassim (Saudi Arabia) on 15 February 2025.

Caveat.Single readings can still be instrument errors that quality control missed. A station with one faulty value can top a list, so read each entry as a reported value, not as a confirmed event.

Biggest one day rise in the daily maximum

The largest increase in the daily maximum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.

Biggest one day drop in the daily maximum

The largest decrease in the daily maximum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.

Biggest one day rise in the daily minimum

The largest increase in the daily minimum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.

Biggest one day drop in the daily minimum

The largest decrease in the daily minimum temperature from one day to the next. Values are in degrees Celsius with Fahrenheit beside them.

Widest range between the high and the low of one day

The largest difference between the highest and the lowest temperature of the same day. Values are in degrees Celsius with Fahrenheit beside them.

Narrowest range between the high and the low of one day

The smallest difference between the highest and the lowest temperature of the same day. Values are in degrees Celsius with Fahrenheit beside them.

Only stations with at least 10 complete years are listed, and a station appears once per list.