Duncan climate

Duncan Weather in January

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

Average highs run from 5°C on January 1 to 6°C on January 31, and lows from 1°C to 2°C. Normal precipitation for the month is 133 mm over about 19 wet days.

January day by day

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

Normal daily high and low temperature at Duncan, in °C, with the record for each date.-15-10-5051015151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

January at a glance

Average high
6°C
Average low
2°C
Precipitation
133 mm
Reanalysis high
12°CJan 31, 1995
Reanalysis low
-12°CJan 29, 1996
Daylight
8 h 21 min to 9 h 25 min
Cloud cover
77%
Humidity
90%
Dew point
2°C
Wind
10.1 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 15°C1°C10°C 2020-6°C 199363%
Jan 25°C1°C11°C 2003-5°C 199364%
Jan 35°C1°C11°C 2020-10°C 200463%
Jan 45°C1°C11°C 2003-10°C 200462%
Jan 55°C1°C10°C 2006-9°C 199362%
Jan 65°C1°C11°C 2006-7°C 199362%
Jan 75°C1°C11°C 2002-6°C 199361%
Jan 85°C1°C10°C 2002-5°C 199161%
Jan 95°C1°C9°C 2010-5°C 199861%
Jan 105°C1°C9°C 1996-7°C 199861%
Jan 115°C1°C10°C 1996-8°C 199861%
Jan 125°C2°C10°C 1994-7°C 199361%
Jan 135°C2°C11°C 1994-7°C 199360%
Jan 145°C2°C10°C 1999-7°C 200560%
Jan 156°C2°C10°C 2004-5°C 200561%
Jan 166°C2°C11°C 2011-3°C 199760%
Jan 176°C2°C9°C 2018-4°C 201259%
Jan 186°C2°C10°C 2005-7°C 201258%
Jan 196°C2°C11°C 2005-7°C 201257%
Jan 206°C2°C10°C 2005-4°C 201256%
Jan 216°C2°C11°C 2005-2°C 199656%
Jan 226°C2°C10°C 2005-3°C 199658%
Jan 236°C2°C12°C 2005-2°C 199959%
Jan 246°C2°C11°C 2015-3°C 199759%
Jan 256°C2°C11°C 2015-8°C 199760%
Jan 266°C2°C11°C 2003-9°C 199759%
Jan 276°C2°C11°C 2015-4°C 199659%
Jan 286°C2°C11°C 2016-10°C 199659%
Jan 296°C2°C10°C 1992-12°C 199659%
Jan 306°C2°C11°C 1995-10°C 199658%
Jan 316°C2°C12°C 1995-7°C 199657%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Duncan, in percent.0204060801102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (PST).

January 1
sunrise 8:08 AM, sunset 4:29 PM
January 31
sunrise 7:46 AM, sunset 5:11 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.