January weather in Newcastle, WY
The average temperature in Newcastle in January is 24.4°F (14.2°F–34.6°F). Average precipitation: 0.51 inches. Average snowfall is 6.8 inches.
January is a winter month in Newcastle, and is cooler than the annual average of 47.3°F. Daily temperatures swing about 20.4°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 9h 4m. For travel, January is cold.
Avg High
34.6°F
Avg Low
14.2°F
Precipitation
0.51 in
Snow
6.8 in
January records in Newcastle
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| January 1 | 59.0°F (1918) | -26.0°F (1979) | 0.33 in (2019) |
| January 2 | 63.0°F (1918) | -27.9°F (1911) | 0.20 in (1968) |
| January 3 | 64.9°F (1918) | -20.9°F (1910) | 0.40 in (1922) |
| January 4 | 53.1°F (1987) | -22.0°F (1959) | 0.48 in (1913) |
| January 5 | 60.1°F (1927) | -22.0°F (1979) | 0.30 in (1972) |
| January 6 | 55.0°F (2012) | -26.0°F (1913) | 0.31 in (1926) |
| January 7 | 55.9°F (1914) | -23.1°F (1937) | 0.26 in (1975) |
| January 8 | 59.0°F (2003) | -17.0°F (1973) | 0.26 in (2004) |
| January 9 | 60.1°F (1953) | -20.0°F (1937) | 0.23 in (1993) |
| January 10 | 57.9°F (1990) | -20.0°F (1982) | 0.38 in (1938) |
| January 11 | 62.1°F (1953) | -24.0°F (1909) | 0.23 in (2024) |
| January 12 | 66.0°F (1953) | -25.1°F (1963) | 0.35 in (1979) |
| January 13 | 55.0°F (1953) | -34.1°F (2024) | 0.16 in (1963) |
| January 14 | 57.0°F (1996) | -34.1°F (2024) | 0.69 in (1953) |
| January 15 | 54.0°F (1980) | -22.0°F (2024) | 0.32 in (1976) |
| January 16 | 54.0°F (2000) | -26.0°F (1982) | 0.17 in (1960) |
| January 17 | 55.9°F (1946) | -36.9°F (1930) | 0.27 in (1996) |
| January 18 | 54.0°F (1946) | -25.1°F (1943) | 0.30 in (1933) |
| January 19 | 55.0°F (1919) | -29.9°F (1963) | 0.40 in (1926) |
| January 20 | 55.0°F (1934) | -22.0°F (1985) | 0.35 in (1963) |
| January 21 | 57.9°F (1972) | -25.1°F (1930) | 0.28 in (1974) |
| January 22 | 57.0°F (2009) | -18.9°F (1927) | 0.33 in (1972) |
| January 23 | 59.0°F (1931) | -22.0°F (1963) | 0.18 in (1941) |
| January 24 | 57.9°F (2005) | -26.0°F (1949) | 0.25 in (1955) |
| January 25 | 61.0°F (2005) | -20.0°F (1940) | 0.23 in (1944) |
| January 26 | 62.1°F (2015) | -15.0°F (1948) | 0.35 in (2003) |
| January 27 | 64.9°F (2015) | -26.0°F (1916) | 0.19 in (1944) |
| January 28 | 57.0°F (1988) | -23.1°F (1951) | 0.34 in (2000) |
| January 29 | 64.9°F (1931) | -29.9°F (1916) | 0.21 in (1965) |
| January 30 | 64.0°F (1989) | -25.1°F (1918) | 0.28 in (1971) |
| January 31 | 62.1°F (1992) | -27.0°F (1918) | 0.26 in (1971) |