Rodeo del Medio Weather in December

NASA POWER reanalysis for the half-degree grid cell around Rodeo del Medio, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

Average highs run from 30°C on December 1 to 33°C on December 31, and lows from 15°C to 18°C. Normal precipitation for the month is 31 mm over about 6 wet days.

December day by day

The normal high and low for each date, and the record, in °C.

Normal low
Normal high
Record high
Record low

December at a glance

Average high: 32°C
Average low: 16°C
Precipitation: 31 mm
Record high: 42°CDec 30, 1994
Record low: 3°CDec 26, 2003
Daylight: 14 h 10 min to 14 h 18 min
Cloud cover: 38%
Humidity: 37%
Dew point: 7°C
Wind: 16.6 km/h

Every day of the month

A wet day has at least 1 mm of precipitation in the reanalysis.

Date	Normal high	Normal low	Record high	Record low	Chance wet
Dec 1	30°C	15°C	37°C 1980	8°C 1963	20%
Dec 2	30°C	15°C	37°C 1993	10°C 1974	21%
Dec 3	31°C	15°C	40°C 1993	6°C 2001	21%
Dec 4	31°C	15°C	39°C 1969	7°C 1971	22%
Dec 5	31°C	15°C	40°C 2016	8°C 1966	22%
Dec 6	31°C	15°C	39°C 2022	8°C 1999	22%
Dec 7	31°C	15°C	40°C 1983	5°C 1973	21%
Dec 8	31°C	15°C	38°C 2022	10°C 1973	21%
Dec 9	31°C	16°C	41°C 1968	9°C 1974	20%
Dec 10	31°C	16°C	39°C 1966	9°C 1974	20%
Dec 11	31°C	16°C	40°C 2020	9°C 1974	19%
Dec 12	32°C	16°C	40°C 1971	7°C 2010	19%
Dec 13	32°C	16°C	37°C 1983	8°C 2010	19%
Dec 14	32°C	16°C	39°C 1968	9°C 1965	19%
Dec 15	32°C	16°C	39°C 2023	11°C 1965	18%
Dec 16	32°C	16°C	39°C 2008	11°C 2003	16%
Dec 17	32°C	16°C	40°C 1971	10°C 1987	15%
Dec 18	32°C	17°C	39°C 2002	12°C 2021	16%
Dec 19	33°C	17°C	41°C 1995	8°C 1980	16%
Dec 20	33°C	17°C	40°C 1995	7°C 1980	15%
Dec 21	33°C	17°C	39°C 1986	10°C 1980	15%
Dec 22	33°C	17°C	39°C 1986	8°C 2014	16%
Dec 23	33°C	17°C	39°C 2010	8°C 2014	18%
Dec 24	33°C	17°C	40°C 1971	10°C 1966	19%
Dec 25	33°C	18°C	40°C 2000	9°C 1966	19%
Dec 26	33°C	18°C	41°C 1997	3°C 2003	21%
Dec 27	33°C	18°C	39°C 1995	10°C 2016	21%
Dec 28	33°C	18°C	38°C 1971	10°C 1974	22%
Dec 29	33°C	18°C	38°C 1969	12°C 2003	25%
Dec 30	33°C	18°C	42°C 1994	15°C 1962	27%
Dec 31	33°C	18°C	39°C 1994	12°C 1979	28%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT-3).

December 1: sunrise 6:19 AM, sunset 8:29 PM
December 31: sunrise 6:29 AM, sunset 8:47 PM

Every day of December: sun and moon

Other months

Sources

Records: NOAA GHCN-Daily, station AR000087418, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.