Climate Trends in Mauritania

• In Mauritania, the longest run of hot days in a row in the data is 172 days, at Atar (Mauritania), from 25 April 1964 to 13 October 1964.
• In Mauritania, the longest run of days in a row at or above 40 C in the data is 64 days, at Kiffa (Mauritania), from 26 March 1980 to 28 May 1980.
• In Mauritania, the longest run of dry days in a row in the data is 329 days, at Bir Mobhrein (Fort) (Mauritania), in 1958.
• In Mauritania, the longest run of wet days in a row in the data is 8 days, at Rosso (Mauritania), in 1947.
• In Mauritania, the longest run of longest run of nights at or above 25 c in the data is 70 days, at Nema (Mauritania), from 26 April 1977 to 4 July 1977.

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 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 Mauritania, the largest reported one day rise in the daily maximum is 21.1 C (38.0 F), at Nouakchott (Mauritania) on 21 May 2003.
• In Mauritania, the largest reported one day drop in the daily maximum is 19.7 C (35.5 F), at Nouakchott (Mauritania) on 25 May 1974.
• In Mauritania, the largest reported one day rise in the daily minimum is 20.0 C (36.0 F), at Tidjixja (Mauritania) on 15 May 1969.
• In Mauritania, the largest reported one day drop in the daily minimum is 19.9 C (35.8 F), at Tidjixja (Mauritania) on 14 May 1969.
• In Mauritania, the largest reported widest range between the high and the low of one day is 33.3 C (59.9 F), at Bir Mobhrein (Fort) (Mauritania) on 22 July 1948.
• In Mauritania, the smallest reported narrowest range between the high and the low of one day is 0.2 C (0.4 F), at Aioun Elatrouss (Mauritania) on 25 March 1977.

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.