Climate Trends in South America

• In South America, the longest run of hot days in a row in the data is 56 days, at San Fernando (Venezuela), from 6 March 1988 to 30 April 1988.
• In South America, the longest run of days in a row at or above 40 C in the data is 10 days, at La Rioja Aero. (Argentina), from 24 December 1971 to 2 January 1972.
• In South America, the longest run of frost days in a row in the data is 153 days, at La Quiaca Observato (Argentina), from 16 April 1971 to 15 September 1971.
• In South America, the longest run of ice days in a row in the data is 9 days, at Rio Gallegos Aero (Argentina), from 6 July 1982 to 14 July 1982.
• In South America, the longest run of dry days in a row in the data is 347 days, at Cruz Do Espirito Santo (Brazil), in 1917.
• In South America, the longest run of wet days in a row in the data is 142 days, at Barra Do Braco (Brazil), in 1961.
• In South America, the longest run of longest run of nights at or above 25 c in the data is 104 days, at Mene Grande (Venezuela), from 12 February 1962 to 26 May 1962.

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 South America, the largest reported one day rise in the daily maximum is 24.3 C (43.7 F), at Cordoba Aero (Argentina) on 19 June 2001.
• In South America, the largest reported one day drop in the daily maximum is 26.7 C (48.1 F), at Jachal (Argentina) on 28 April 2001.
• In South America, the largest reported one day rise in the daily minimum is 22.2 C (40.0 F), at Jachal (Argentina) on 25 October 1995.
• In South America, the largest reported one day drop in the daily minimum is 20.3 C (36.5 F), at Las Lomitas (Argentina) on 22 December 1996.
• In South America, the largest reported range between the high and the low of one day is 42.6 C (76.7 F), at Jachal (Argentina) on 24 October 1995.
• In South America, the smallest reported range between the high and the low of one day is 0.0 C (0.0 F), at Mercedes (Uruguay) on 26 August 1931.

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.