Reynosa Weather in December

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

Average highs run from 25°C on December 1 to 22°C on December 31, and lows from 12°C to 9°C. Normal precipitation for the month is 28 mm over about 6 wet days.

December day by day

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

Normal low
Normal high
Reanalysis extreme high
Reanalysis extreme low

December at a glance

Average high: 23°C
Average low: 11°C
Precipitation: 28 mm
Reanalysis high: 35°CDec 17, 2016
Reanalysis low: -3°CDec 19, 1996
Daylight: 10 h 38 min to 10 h 32 min
Cloud cover: 59%
Humidity: 70%
Dew point: 10°C
Wind: 15.1 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	Reanalysis high	Reanalysis low	Chance wet
Dec 1	25°C	12°C	31°C 2012	3°C 2006	14%
Dec 2	25°C	12°C	31°C 2007	6°C 2009	14%
Dec 3	24°C	12°C	31°C 2016	5°C 2009	14%
Dec 4	24°C	12°C	32°C 2017	1°C 2009	14%
Dec 5	24°C	12°C	33°C 1994	-1°C 2009	14%
Dec 6	24°C	12°C	34°C 1994	3°C 2002	14%
Dec 7	24°C	12°C	33°C 1994	3°C 2017	15%
Dec 8	24°C	11°C	33°C 1994	1°C 2017	16%
Dec 9	24°C	11°C	32°C 2019	2°C 2005	16%
Dec 10	24°C	11°C	32°C 2015	4°C 1995	16%
Dec 11	23°C	11°C	32°C 1999	2°C 2008	16%
Dec 12	23°C	11°C	30°C 2004	3°C 1997	15%
Dec 13	23°C	11°C	30°C 2020	2°C 1997	15%
Dec 14	23°C	11°C	33°C 2019	3°C 1997	15%
Dec 15	23°C	11°C	32°C 2019	2°C 2004	15%
Dec 16	23°C	11°C	32°C 2001	4°C 2007	15%
Dec 17	23°C	10°C	35°C 2016	1°C 2003	16%
Dec 18	23°C	10°C	32°C 2012	-1°C 1996	16%
Dec 19	23°C	10°C	34°C 2012	-3°C 1996	17%
Dec 20	23°C	10°C	31°C 2010	4°C 1996	17%
Dec 21	23°C	10°C	32°C 2017	4°C 1996	16%
Dec 22	22°C	10°C	30°C 2010	2°C 1998	16%
Dec 23	22°C	10°C	33°C 2015	2°C 1998	16%
Dec 24	22°C	10°C	32°C 2015	1°C 2004	17%
Dec 25	22°C	10°C	31°C 2015	-2°C 2004	18%
Dec 26	22°C	10°C	32°C 2015	1°C 2004	19%
Dec 27	22°C	10°C	30°C 2016	4°C 2010	20%
Dec 28	22°C	10°C	32°C 2016	3°C 1997	19%
Dec 29	22°C	9°C	29°C 2020	1°C 1997	19%
Dec 30	22°C	9°C	32°C 2010	2°C 2000	18%
Dec 31	22°C	9°C	30°C 2010	5°C 2013	18%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (CST).

December 1: sunrise 7:03 AM, sunset 5:41 PM
December 31: sunrise 7:20 AM, sunset 5:52 PM

Every day of December: sun and moon

Other months

Sources

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.