Siwei climate

Siwei Weather in January

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

Average highs run from 2°C on January 1 to 3°C on January 31, and lows from -9°C to -8°C. Normal precipitation for the month is 3 mm over about 0 wet days.

January day by day

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

Normal daily high and low temperature at Siwei, in °C, with the record for each date.-30-20-1001020151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

January at a glance

Average high
2°C
Average low
-9°C
Precipitation
3 mm
Reanalysis high
14°CJan 11, 2002
Reanalysis low
-22°CJan 24, 2016
Daylight
9 h 35 min to 10 h 16 min
Cloud cover
42%
Humidity
55%
Dew point
-13°C
Wind
14.4 km/h

Every day of the month

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

DateNormal highNormal lowReanalysis highReanalysis lowChance wet
Jan 12°C-9°C11°C 1996-17°C 20112%
Jan 22°C-9°C12°C 2016-19°C 20132%
Jan 32°C-9°C11°C 2017-20°C 20132%
Jan 42°C-9°C10°C 1999-21°C 20032%
Jan 52°C-9°C10°C 2002-19°C 20032%
Jan 62°C-9°C10°C 1995-16°C 20112%
Jan 72°C-9°C9°C 1995-16°C 20102%
Jan 82°C-9°C9°C 1994-15°C 19962%
Jan 91°C-9°C11°C 2002-15°C 20012%
Jan 101°C-10°C12°C 2002-15°C 20113%
Jan 111°C-10°C14°C 2002-15°C 20183%
Jan 121°C-10°C10°C 1997-15°C 20103%
Jan 131°C-10°C7°C 2018-17°C 20104%
Jan 141°C-10°C8°C 2019-19°C 20014%
Jan 151°C-10°C10°C 1994-18°C 20014%
Jan 161°C-10°C8°C 2003-17°C 19934%
Jan 171°C-10°C8°C 2010-17°C 19984%
Jan 181°C-10°C8°C 1991-19°C 19984%
Jan 191°C-10°C10°C 2015-18°C 19984%
Jan 202°C-10°C9°C 2015-15°C 19984%
Jan 212°C-9°C9°C 2009-17°C 20044%
Jan 222°C-9°C10°C 2014-17°C 20163%
Jan 232°C-9°C12°C 2014-20°C 20163%
Jan 242°C-9°C9°C 2019-22°C 20163%
Jan 252°C-9°C9°C 1999-18°C 20003%
Jan 262°C-9°C11°C 1999-18°C 20003%
Jan 272°C-9°C12°C 1992-16°C 20003%
Jan 282°C-9°C12°C 2009-14°C 20012%
Jan 293°C-9°C13°C 2014-16°C 20113%
Jan 303°C-9°C11°C 2014-17°C 20003%
Jan 313°C-8°C9°C 2020-19°C 20003%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Siwei, in percent.012341102030
  • Chance of a wet day

Sunrise and sunset

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

January 1
sunrise 7:39 AM, sunset 5:14 PM
January 31
sunrise 7:29 AM, sunset 5:45 PM

Every day of January: 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.