Filadelfia Weather in December

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

Average highs run from 36°C on December 1 to 37°C on December 31, and lows from 23°C to 25°C. Normal precipitation for the month is 118 mm over about 12 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: 36°C
Average low: 24°C
Precipitation: 118 mm
Reanalysis high: 44°CDec 27, 2002
Reanalysis low: 13°CDec 14, 2010
Daylight: 13 h 24 min to 13 h 29 min
Cloud cover: 60%
Humidity: 56%
Dew point: 19°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	36°C	23°C	42°C 2007	14°C 2001	41%
Dec 2	36°C	23°C	42°C 2007	16°C 2018	42%
Dec 3	36°C	24°C	40°C 2004	14°C 2018	41%
Dec 4	36°C	24°C	42°C 2010	15°C 2018	40%
Dec 5	36°C	24°C	42°C 1999	18°C 2018	40%
Dec 6	36°C	24°C	42°C 2002	16°C 2000	39%
Dec 7	36°C	24°C	42°C 2010	18°C 2000	38%
Dec 8	36°C	24°C	43°C 2010	17°C 2018	39%
Dec 9	36°C	24°C	42°C 2008	19°C 2018	40%
Dec 10	36°C	24°C	42°C 2010	18°C 2003	39%
Dec 11	36°C	24°C	43°C 2010	17°C 1998	39%
Dec 12	36°C	24°C	43°C 2010	18°C 2010	37%
Dec 13	36°C	24°C	41°C 1997	17°C 2010	37%
Dec 14	36°C	24°C	41°C 1993	13°C 2010	38%
Dec 15	37°C	24°C	41°C 2017	15°C 2010	38%
Dec 16	37°C	24°C	42°C 2017	17°C 2016	38%
Dec 17	37°C	24°C	42°C 2017	15°C 2000	37%
Dec 18	37°C	24°C	42°C 2010	16°C 2000	36%
Dec 19	37°C	24°C	42°C 2020	18°C 2000	37%
Dec 20	37°C	24°C	43°C 2008	20°C 2007	36%
Dec 21	37°C	25°C	43°C 1999	19°C 2019	37%
Dec 22	37°C	25°C	42°C 1999	18°C 2019	38%
Dec 23	37°C	25°C	42°C 2011	17°C 1998	38%
Dec 24	37°C	25°C	42°C 2020	16°C 1998	39%
Dec 25	37°C	25°C	41°C 1994	19°C 2011	39%
Dec 26	37°C	25°C	42°C 2016	21°C 2004	40%
Dec 27	37°C	25°C	44°C 2002	21°C 1991	41%
Dec 28	37°C	25°C	42°C 1998	21°C 2004	40%
Dec 29	37°C	25°C	43°C 2002	20°C 2003	40%
Dec 30	37°C	25°C	43°C 2002	20°C 1993	39%
Dec 31	37°C	25°C	40°C 2014	19°C 1993	39%

Chance of rain

Chance of a wet day

Sunrise and sunset

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

December 1: sunrise 6:07 AM, sunset 7:31 PM
December 31: sunrise 6:19 AM, sunset 7:48 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.