Commonwealth Weather in January

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

Average highs run from 27°C on January 1 to 28°C on January 31, and lows from 21°C to 21°C. Normal precipitation for the month is 140 mm over about 22 wet days.

January day by day

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

Normal low
Normal high
Record high
Record low

January at a glance

Average high: 27°C
Average low: 21°C
Precipitation: 140 mm
Record high: 39°CJan 16, 1979
Record low: 11°CJan 21, 1981
Daylight: 11 h 16 min to 11 h 30 min
Cloud cover: 70%
Humidity: 86%
Dew point: 21°C
Wind: 13.0 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
Jan 1	27°C	21°C	32°C 1987	18°C 1986	74%
Jan 2	27°C	21°C	33°C 1990	18°C 1982	73%
Jan 3	27°C	21°C	33°C 2024	18°C 1993	71%
Jan 4	27°C	21°C	34°C 1993	20°C 1997	72%
Jan 5	27°C	21°C	33°C 2013	12°C 1983	72%
Jan 6	27°C	21°C	33°C 2021	19°C 2009	72%
Jan 7	27°C	21°C	32°C 1997	19°C 1979	72%
Jan 8	27°C	21°C	33°C 1988	20°C 1981	72%
Jan 9	27°C	21°C	33°C 2018	19°C 1985	71%
Jan 10	27°C	21°C	32°C 1993	19°C 1985	71%
Jan 11	27°C	21°C	33°C 1989	20°C 1979	70%
Jan 12	27°C	21°C	33°C 2016	18°C 1985	70%
Jan 13	27°C	21°C	34°C 1989	18°C 1985	69%
Jan 14	27°C	21°C	32°C 2019	17°C 1981	68%
Jan 15	27°C	21°C	33°C 1980	17°C 1981	67%
Jan 16	27°C	21°C	39°C 1979	17°C 1987	67%
Jan 17	27°C	21°C	33°C 1998	18°C 1984	68%
Jan 18	27°C	21°C	33°C 2018	20°C 1983	69%
Jan 19	27°C	21°C	33°C 1988	18°C 1981	69%
Jan 20	27°C	21°C	33°C 2018	18°C 1995	68%
Jan 21	28°C	21°C	33°C 2025	11°C 1981	68%
Jan 22	28°C	21°C	33°C 2007	16°C 1981	68%
Jan 23	28°C	21°C	33°C 1988	18°C 1982	67%
Jan 24	28°C	21°C	33°C 2023	17°C 1981	67%
Jan 25	28°C	21°C	33°C 2022	18°C 1987	67%
Jan 26	28°C	21°C	33°C 2001	19°C 1987	67%
Jan 27	28°C	21°C	33°C 2010	18°C 1982	68%
Jan 28	28°C	21°C	36°C 1985	17°C 1987	68%
Jan 29	28°C	21°C	36°C 1987	17°C 1987	67%
Jan 30	28°C	21°C	34°C 1979	17°C 1987	67%
Jan 31	28°C	21°C	33°C 2022	20°C 1981	66%

Chance of rain

Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+8).

January 1: sunrise 6:21 AM, sunset 5:37 PM
January 31: sunrise 6:24 AM, sunset 5:54 PM

Every day of January: sun and moon

Other months

Sources

Records: NOAA GHCN-Daily, station RP000098429, 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.