San Antero Weather in December

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

Average highs run from 29°C on December 1 to 29°C on December 31, and lows from 27°C to 27°C. Normal precipitation for the month is 99 mm over about 19 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: 29°C
Average low: 27°C
Precipitation: 99 mm
Reanalysis high: 33°CDec 30, 2015
Reanalysis low: 25°CDec 8, 1998
Daylight: 11 h 37 min to 11 h 36 min
Cloud cover: 50%
Humidity: 82%
Dew point: 24°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	29°C	27°C	31°C 2009	26°C 1999	74%
Dec 2	29°C	27°C	31°C 2015	26°C 2010	72%
Dec 3	29°C	27°C	31°C 2009	26°C 2003	70%
Dec 4	29°C	27°C	31°C 1997	26°C 1998	69%
Dec 5	29°C	27°C	31°C 2009	26°C 2007	69%
Dec 6	29°C	27°C	31°C 2009	26°C 1999	70%
Dec 7	29°C	27°C	31°C 1997	26°C 1998	70%
Dec 8	29°C	27°C	31°C 2013	25°C 1998	70%
Dec 9	29°C	27°C	31°C 2012	26°C 1998	67%
Dec 10	29°C	27°C	31°C 2003	26°C 1998	65%
Dec 11	29°C	27°C	31°C 1997	26°C 1998	63%
Dec 12	29°C	27°C	31°C 2015	26°C 1996	62%
Dec 13	29°C	27°C	31°C 2002	26°C 1999	61%
Dec 14	29°C	27°C	31°C 2018	26°C 1996	60%
Dec 15	29°C	27°C	31°C 2018	26°C 1999	58%
Dec 16	29°C	27°C	30°C 2016	26°C 1999	56%
Dec 17	29°C	27°C	30°C 2016	26°C 1991	54%
Dec 18	29°C	27°C	31°C 2015	26°C 2008	53%
Dec 19	29°C	27°C	31°C 2020	26°C 1992	51%
Dec 20	29°C	27°C	31°C 2015	26°C 2010	48%
Dec 21	29°C	27°C	31°C 1997	25°C 2010	47%
Dec 22	29°C	27°C	32°C 2015	25°C 1991	44%
Dec 23	29°C	27°C	32°C 2015	25°C 1991	42%
Dec 24	29°C	27°C	32°C 2015	25°C 1991	41%
Dec 25	29°C	27°C	32°C 2015	25°C 1991	41%
Dec 26	29°C	27°C	32°C 2015	25°C 1991	40%
Dec 27	29°C	27°C	32°C 2015	25°C 1991	38%
Dec 28	29°C	27°C	32°C 2015	25°C 1994	37%
Dec 29	29°C	27°C	31°C 2015	25°C 1994	36%
Dec 30	29°C	27°C	33°C 2015	25°C 1996	36%
Dec 31	29°C	27°C	32°C 2015	25°C 1996	36%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT-5).

December 1: sunrise 6:04 AM, sunset 5:41 PM
December 31: sunrise 6:18 AM, sunset 5:54 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.