Karaj climate

Karaj Weather in January

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

Average highs run from 1°C on January 1 to -1°C on January 31, and lows from -9°C to -10°C. Normal precipitation for the month is 40 mm over about 9 wet days.

January day by day

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

Normal daily high and low temperature at Karaj, in °C, with the record for each date.-20-100102030151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

January at a glance

Average high
-1°C
Average low
-10°C
Precipitation
40 mm
Record high
21°CJan 5, 2015
Record low
-13°CJan 1, 1973
Daylight
9 h 47 min to 10 h 25 min
Cloud cover
72%
Humidity
76%
Dew point
-10°C
Wind
9.0 km/h

Every day of the month

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

DateNormal highNormal lowRecord highRecord lowChance wet
Jan 11°C-9°C19°C 2002-13°C 197325%
Jan 20°C-9°C18°C 2000-13°C 197325%
Jan 30°C-9°C17°C 2010-11°C 197327%
Jan 40°C-9°C17°C 2010-9°C 197326%
Jan 50°C-9°C21°C 2015-2°C 195527%
Jan 60°C-9°C16°C 2002-7°C 197328%
Jan 70°C-9°C17°C 1997-11°C 200829%
Jan 8-1°C-10°C15°C 2024-10°C 200830%
Jan 9-1°C-10°C17°C 2024-10°C 200830%
Jan 10-1°C-10°C16°C 2024-10°C 200830%
Jan 11-1°C-10°C16°C 2003-8°C 200830%
Jan 12-1°C-10°C15°C 2022-8°C 199030%
Jan 13-1°C-10°C17°C 2003-8°C 200830%
Jan 14-1°C-10°C17°C 1968-9°C 200830%
Jan 15-1°C-11°C16°C 2010-9°C 200830%
Jan 16-1°C-11°C17°C 2010-9°C 200830%
Jan 17-1°C-11°C17°C 2010-7°C 200829%
Jan 18-1°C-11°C15°C 2010-8°C 200828%
Jan 19-1°C-11°C15°C 2010-10°C 197428%
Jan 20-1°C-11°C19°C 2010-11°C 200429%
Jan 21-1°C-11°C15°C 2010-8°C 200830%
Jan 22-1°C-11°C16°C 2016-7°C 200830%
Jan 23-1°C-11°C16°C 2013-9°C 196829%
Jan 24-1°C-11°C17°C 2013-7°C 196829%
Jan 25-1°C-10°C18°C 2013-9°C 197730%
Jan 26-1°C-10°C16°C 2013-5°C 197330%
Jan 27-1°C-10°C16°C 2013-6°C 197331%
Jan 28-1°C-10°C16°C 2013-7°C 199232%
Jan 29-1°C-10°C14°C 2014-6°C 199232%
Jan 30-1°C-10°C16°C 1995-6°C 201830%
Jan 31-1°C-10°C17°C 1995-5°C 198030%

Chance of rain

The chance of at least 1 mm of precipitation in the reanalysis on each date at Karaj, in percent.0102030401102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (GMT+3:30).

January 1
sunrise 7:16 AM, sunset 5:03 PM
January 31
sunrise 7:07 AM, sunset 5:32 PM

Every day of January: sun and moon

Other months

Sources

Records: NOAA GHCN-Daily, station IR000407540, 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.