Climate Trends in Africa

• In Africa, the longest run of hot days in a row in the data is 200 days, at Bilma (Niger), from 18 April 1960 to 3 November 1960.
• In Africa, the longest run of days in a row at or above 40 C in the data is 117 days, at Zinder (Niger), from 13 March 1922 to 7 July 1922.
• In Africa, the longest run of frost days in a row in the data is 39 days, at Geryville (El-Bayadh) (Algeria), from 25 January 1909 to 4 March 1909.
• In Africa, the longest run of ice days in a row in the data is 4 days, at Medea (Algeria), from 26 January 2005 to 29 January 2005.
• In Africa, the longest run of dry days in a row in the data is 349 days, at Dedeben (Pol) (South Africa), in 1974.
• In Africa, the longest run of wet days in a row in the data is 75 days, at Conakry (Aero) (Guinea), in 1948.
• In Africa, the longest run of longest run of nights at or above 25 c in the data is 195 days, at Assab (Eritrea), from 2 May 1951 to 12 November 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 run of ice days (maximum at or below 0 C)

Consecutive days with a daily maximum 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 Africa, the largest reported one day rise in the daily maximum is 21.1 C (38.0 F), at Sirte (Libya) on 26 April 1953.
• In Africa, the largest reported one day drop in the daily maximum is 24.8 C (44.6 F), at Agedabia (Libya) on 10 April 1924.
• In Africa, the largest reported one day rise in the daily minimum is 21.6 C (38.9 F), at Upington Agr. (South Africa) on 19 March 1989.
• In Africa, the largest reported one day drop in the daily minimum is 20.3 C (36.5 F), at Tillabery (Niger) on 25 February 1965.
• In Africa, the largest reported range between the high and the low of one day is 39.0 C (70.2 F), at Tillabery (Niger) on 25 February 1965.

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.

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