January weather in Newcastle, WA
The average temperature in Newcastle in January is 42.5°F (37.1°F–48.0°F). Average precipitation: 4.93 inches.
January is a winter month in Newcastle, and is cooler than the annual average of 53.6°F. Daily temperatures swing about 10.9°F between overnight low and afternoon high. Expect about 18 days with precipitation. Daylight averages about 8h 39m. For travel, January is cool.
Avg High
48.0°F
Avg Low
37.1°F
Precipitation
4.93 in
Daylight
8h 39m
January records in Newcastle
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 57.9°F (2006) | 19.2°F (2022) | 0.92 in (2003) |
| January 2 | 59.0°F (2003) | 24.3°F (2011) | 1.38 in (2007) |
| January 3 | 62.1°F (2020) | 23.2°F (2011) | 0.54 in (2026) |
| January 4 | 55.9°F (2003) | 19.9°F (2004) | 0.76 in (2010) |
| January 5 | 59.0°F (2023) | 18.1°F (2017) | 1.36 in (2006) |
| January 6 | 57.9°F (2002) | 20.1°F (2017) | 0.78 in (2002) |
| January 7 | 61.0°F (2002) | 29.1°F (2017) | 1.76 in (2009) |
| January 8 | 55.0°F (2013) | 31.1°F (2016) | 0.75 in (2010) |
| January 9 | 57.9°F (2023) | 30.2°F (2016) | 1.11 in (2006) |
| January 10 | 57.0°F (2023) | 28.2°F (2007) | 0.94 in (2006) |
| January 11 | 59.0°F (2014) | 25.0°F (2005) | 0.81 in (2010) |
| January 12 | 57.9°F (2021) | 17.2°F (2024) | 1.45 in (2021) |
| January 13 | 60.1°F (2026) | 17.2°F (2024) | 0.71 in (2016) |
| January 14 | 61.0°F (2023) | 17.2°F (2024) | 0.75 in (1999) |
| January 15 | 64.0°F (2018) | 20.1°F (2007) | 0.47 in (2011) |
| January 16 | 57.0°F (2018) | 24.3°F (2024) | 0.78 in (2006) |
| January 17 | 57.9°F (2018) | 28.2°F (2013) | 2.12 in (2005) |
| January 18 | 63.0°F (2005) | 28.2°F (2009) | 0.81 in (2005) |
| January 19 | 64.0°F (2005) | 27.1°F (2025) | 0.38 in (2012) |
| January 20 | 59.0°F (2010) | 25.2°F (2025) | 0.37 in (2012) |
| January 21 | 60.1°F (2005) | 23.2°F (2008) | 0.92 in (2011) |
| January 22 | 55.9°F (2005) | 23.2°F (2008) | 0.66 in (2003) |
| January 23 | 57.9°F (2001) | 23.2°F (2008) | 0.75 in (2004) |
| January 24 | 60.1°F (2005) | 25.0°F (2026) | 0.85 in (2002) |
| January 25 | 61.0°F (2015) | 24.1°F (2026) | 0.91 in (2002) |
| January 26 | 63.0°F (2015) | 22.1°F (2009) | 0.79 in (2003) |
| January 27 | 60.1°F (2016) | 26.2°F (2025) | 0.66 in (2003) |
| January 28 | 62.1°F (2024) | 26.2°F (2025) | 0.69 in (1999) |
| January 29 | 60.1°F (2024) | 27.1°F (2023) | 1.75 in (2004) |
| January 30 | 62.1°F (2024) | 24.3°F (2023) | 0.80 in (2006) |
| January 31 | 60.1°F (2024) | 27.1°F (2007) | 0.39 in (2006) |