Ostrołęka climate

Ostrołęka Weather in January

NASA POWER reanalysis for the half-degree grid cell around Ostrołęka, 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 -6°C to -7°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, in °C.

Normal daily high and low temperature at Ostrołęka, in °C, with the record for each date.-40-30-20-1001020151015202530
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

January at a glance

Average high
-1°C
Average low
-7°C
Precipitation
40 mm
Reanalysis high
12°CJan 10, 2007
Reanalysis low
-33°CJan 20, 2006
Daylight
7 h 39 min to 8 h 57 min
Cloud cover
76%
Humidity
94%
Dew point
-5°C
Wind
18.7 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 1-1°C-6°C7°C 2007-20°C 199735%
Jan 2-1°C-6°C6°C 2007-20°C 200234%
Jan 3-1°C-6°C5°C 2007-25°C 200234%
Jan 4-1°C-6°C5°C 2018-25°C 200234%
Jan 5-1°C-6°C7°C 2018-18°C 200336%
Jan 6-1°C-6°C7°C 2007-25°C 200336%
Jan 7-1°C-6°C6°C 2014-29°C 200337%
Jan 8-1°C-6°C9°C 2005-29°C 200336%
Jan 9-1°C-6°C7°C 2005-23°C 200334%
Jan 10-1°C-6°C12°C 2007-17°C 200632%
Jan 11-1°C-6°C9°C 2007-25°C 200331%
Jan 12-1°C-6°C7°C 2005-16°C 199730%
Jan 13-1°C-6°C9°C 2007-22°C 201030%
Jan 14-1°C-6°C9°C 2007-25°C 201030%
Jan 15-1°C-6°C6°C 2020-20°C 199631%
Jan 16-1°C-6°C8°C 1993-19°C 199630%
Jan 17-1°C-7°C9°C 1993-20°C 200629%
Jan 18-1°C-7°C11°C 2007-16°C 200630%
Jan 19-1°C-7°C9°C 2007-29°C 200630%
Jan 20-1°C-7°C9°C 2007-33°C 200630%
Jan 21-2°C-7°C8°C 1993-24°C 200630%
Jan 22-2°C-7°C11°C 1993-29°C 200630%
Jan 23-2°C-7°C5°C 1993-32°C 200631%
Jan 24-2°C-7°C7°C 1993-30°C 201033%
Jan 25-2°C-8°C4°C 1993-30°C 201034%
Jan 26-2°C-8°C6°C 2008-26°C 201035%
Jan 27-1°C-8°C4°C 2002-22°C 200636%
Jan 28-1°C-7°C8°C 2002-20°C 201136%
Jan 29-1°C-7°C8°C 2002-23°C 201235%
Jan 30-1°C-7°C8°C 2016-24°C 201235%
Jan 31-1°C-7°C7°C 2002-25°C 201236%

Chance of rain

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

Sunrise and sunset

Times for 2026, local time (GMT+1).

January 1
sunrise 7:48 AM, sunset 3:27 PM
January 31
sunrise 7:19 AM, sunset 4:16 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.