January is one of the cooler months of the year in Maryville, with average highs near 6.3°C and lows around -3.4°C (mean 1.5°C). It is about average for rainfall, averaging 122 mm of rainfall and 83% relative humidity across the period.
January is one of the cooler months of the year in Maryville. Across 45 years of records, the warmest January in Maryville was 2017 — when the month averaged 6°C — while the coldest was 1985 at -2.7°C. Typical January days reach 6.3°C with nights near -3.4°C. The long-term trend is warming, about 0.4°C per decade.
January is about average for rainfall in Maryville, averaging 122 mm of rainfall. The wettest January on record was 2013 with 303 mm, while the driest was 1986 at 30 mm.
Relative humidity in Maryville during January averages 83%. The most humid January was 1998 at 89%, and the least humid was 2025 at 77%.
January receives about 2.4 kWh/m²/day of solar energy in Maryville. The sunniest January was 2014 at 2.9 kWh/m²/day, and the cloudiest was 1993 at 2.1.
Average wind speed in Maryville during January is 0.5 m/s. The windiest Januarys were 2012, 2014 and 2024, among others at 0.6 m/s, while the calmest were 2022, 2023 and 2025, among others at 0.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -0.2°C | 2.2°C | 1.9°C | 1.3°C | 2.3°C | +2.5°C |
| Avg High | 4.7°C | 6.9°C | 6.9°C | 6.0°C | 7.1°C | +2.4°C |
| Avg Low | -5.1°C | -2.6°C | -3.0°C | -3.4°C | -2.5°C | +2.6°C |
| Avg Rain | 99 mm | 156 mm | 106 mm | 117 mm | 133 mm | +33 mm |
January temperatures in Maryville have risen by about 2.8°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -26.7°C (1994) to a record high of 21°C (2022).
Rainfall in January is about average for rainfall, averaging 122 mm, with a wettest year of 303 mm.
A quieter season to visit Maryville
If your dates are flexible, the more temperate months of August and June tend to be the most comfortable for visiting Maryville. That said, January — with days averaging 6.3°C and nights around -3.4°C (mean 1.5°C) and higher rainfall (122 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 4.1°C | -1.1°C | -6.3°C | 13.2°C | -15.7°C | 64 mm | 77% | 0.5 m/s | 2.5 |
| 2024 | 6.1°C | 1.2°C | -3.8°C | 18.4°C | -16.5°C | 178 mm | 84% | 0.6 m/s | 2.3 |
| 2023 | 10.2°C | 5.6°C | 1.0°C | 17.2°C | -5.8°C | 168 mm | 85% | 0.5 m/s | 2.2 |
| 2022 | 5.9°C | 0.9°C | -4.1°C | 21.0°C | -9.7°C | 121 mm | 82% | 0.5 m/s | 2.6 |
| 2021 | 7.2°C | 2.5°C | -2.1°C | 16.0°C | -6.5°C | 88 mm | 85% | 0.5 m/s | 2.3 |
| 2020 | 9.1°C | 4.7°C | 0.4°C | 18.4°C | -9.8°C | 176 mm | 85% | 0.5 m/s | 2.2 |
| 2019 | 6.7°C | 2.3°C | -2.0°C | 14.7°C | -12.3°C | 138 mm | 85% | 0.5 m/s | 2.4 |
| 2018 | 4.8°C | -0.5°C | -5.8°C | 15.4°C | -15.6°C | 54 mm | 78% | 0.5 m/s | 2.7 |
| 2017 🔥 | 10.1°C | 6.0°C | 1.9°C | 17.8°C | -14.0°C | 99 mm | 84% | 0.5 m/s | 2.2 |
| 2016 | 4.8°C | 0.2°C | -4.4°C | 12.6°C | -13.3°C | 75 mm | 83% | 0.5 m/s | 2.6 |
| 2015 | 6.1°C | 1.1°C | -3.9°C | 14.4°C | -17.3°C | 92 mm | 81% | 0.5 m/s | 2.5 |
| 2014 | 2.9°C | -2.5°C | -8.0°C | 12.8°C | -19.4°C | 75 mm | 78% | 0.6 m/s | 2.9 |
| 2013 🌧️ | 8.8°C | 4.1°C | -0.6°C | 20.2°C | -8.2°C | 303 mm | 87% | 0.5 m/s | 2.2 |
| 2012 | 9.0°C | 4.0°C | -1.0°C | 15.6°C | -8.7°C | 136 mm | 84% | 0.6 m/s | 2.3 |
| 2011 | 4.2°C | -0.3°C | -4.9°C | 14.7°C | -13.6°C | 71 mm | 84% | 0.5 m/s | 2.4 |
| 2010 | 2.9°C | -1.2°C | -5.2°C | 13.2°C | -12.7°C | 128 mm | 84% | 0.5 m/s | 2.4 |
| 2009 | 6.2°C | 1.1°C | -4.0°C | 16.8°C | -16.7°C | 134 mm | 84% | 0.5 m/s | 2.4 |
| 2008 | 6.3°C | 1.2°C | -3.9°C | 17.5°C | -14.4°C | 91 mm | 78% | 0.5 m/s | 2.7 |
| 2007 | 8.0°C | 3.1°C | -1.7°C | 18.6°C | -12.1°C | 72 mm | 81% | 0.5 m/s | 2.5 |
| 2006 | 10.1°C | 4.9°C | -0.2°C | 16.2°C | -6.2°C | 138 mm | 83% | 0.6 m/s | 2.5 |
| 2005 | 8.7°C | 3.9°C | -0.9°C | 17.3°C | -13.3°C | 68 mm | 85% | 0.5 m/s | 2.3 |
| 2004 | 6.1°C | 1.1°C | -3.9°C | 18.3°C | -11.2°C | 72 mm | 80% | 0.5 m/s | 2.6 |
| 2003 | 3.6°C | -1.1°C | -5.7°C | 11.8°C | -16.3°C | 69 mm | 81% | 0.5 m/s | 2.6 |
| 2002 | 8.7°C | 3.4°C | -1.8°C | 19.8°C | -10.8°C | 171 mm | 82% | 0.5 m/s | 2.6 |
| 2001 | 5.4°C | 0.5°C | -4.3°C | 12.8°C | -12.6°C | 107 mm | 82% | 0.5 m/s | 2.6 |
| 2000 | 6.0°C | 0.9°C | -4.1°C | 17.4°C | -15.7°C | 137 mm | 80% | 0.6 m/s | 2.5 |
| 1999 | 8.7°C | 3.8°C | -1.0°C | 17.3°C | -12.6°C | 194 mm | 85% | 0.6 m/s | 2.2 |
| 1998 | 8.0°C | 3.8°C | -0.4°C | 17.9°C | -10.9°C | 190 mm | 89% | 0.5 m/s | 2.3 |
| 1997 | 6.5°C | 1.3°C | -3.8°C | 17.4°C | -17.4°C | 122 mm | 84% | 0.6 m/s | 2.5 |
| 1996 | 5.2°C | 0.2°C | -4.8°C | 14.7°C | -15.7°C | 220 mm | 89% | 0.6 m/s | 2.2 |
| 1995 | 7.1°C | 2.3°C | -2.5°C | 16.8°C | -14.3°C | 151 mm | 82% | 0.5 m/s | 2.3 |
| 1994 | 2.9°C | -1.9°C | -6.6°C | 12.9°C | -26.7°C | 172 mm | 89% | 0.5 m/s | 2.2 |
| 1993 | 8.5°C | 4.0°C | -0.6°C | 13.6°C | -5.8°C | 133 mm | 86% | 0.5 m/s | 2.1 |
| 1992 | 7.0°C | 2.0°C | -3.1°C | 14.4°C | -14.1°C | 124 mm | 85% | 0.5 m/s | 2.5 |
| 1991 | 7.0°C | 2.7°C | -1.7°C | 13.8°C | -9.7°C | 95 mm | 88% | 0.5 m/s | 2.2 |
| 1990 | 8.4°C | 3.7°C | -1.1°C | 15.7°C | -8.3°C | 163 mm | 88% | 0.5 m/s | 2.3 |
| 1989 | 9.5°C | 4.3°C | -0.9°C | 17.6°C | -6.2°C | 136 mm | 80% | 0.6 m/s | 2.6 |
| 1988 | 3.2°C | -1.6°C | -6.3°C | 13.4°C | -15.3°C | 121 mm | 85% | 0.5 m/s | 2.5 |
| 1987 | 4.7°C | 0.5°C | -3.6°C | 11.5°C | -12.7°C | 132 mm | 88% | 0.5 m/s | 2.3 |
| 1986 | 5.5°C | 0.0°C | -5.5°C | 14.7°C | -19.2°C | 30 mm | 78% | 0.5 m/s | 2.7 |
| 1985 ❄️ | 2.0°C | -2.7°C | -7.4°C | 16.3°C | -24.5°C | 119 mm | 83% | 0.6 m/s | 2.3 |
| 1984 | 4.5°C | -0.4°C | -5.2°C | 12.1°C | -17.0°C | 74 mm | 85% | 0.5 m/s | 2.5 |
| 1983 | 5.7°C | 1.1°C | -3.6°C | 14.1°C | -12.4°C | 61 mm | 85% | 0.5 m/s | — |
| 1982 | 4.2°C | -1.4°C | -6.9°C | 16.0°C | -22.8°C | 187 mm | 84% | 0.6 m/s | — |
| 1981 | 3.4°C | -1.8°C | -6.9°C | 11.9°C | -17.1°C | 37 mm | 77% | 0.5 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 6.3°C with lows near -3.4°C (mean 1.5°C), based on 45 years of NASA POWER data.
January averages 122 mm of rainfall in Maryville, about average for rainfall. The wettest on record was 303 mm in 2013.
The hottest January reached 21°C in 2022. The coldest dipped to -26.7°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 2.8°C. Daytime highs moved from 4°C to 6.7°C and overnight lows from -6°C to -3.1°C over the same span.
January is one of the cooler months of the year in Maryville and about average for rainfall, so plan for around 6.3°C daytime highs and -3.4°C at night.
Yes — January is the coldest month of the year in Maryville, averaging 1.5°C.
For January in Maryville, pack warm layers and a jacket for chilly mornings, with typical highs of 6.3°C and lows of -3.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 83% — quite humid.
Average wind speed in January is 0.5 m/s. The windiest January on record averaged 0.6 m/s (1982).
The wettest January on record was 2013 with 303 mm. On average, January sees 122 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Maryville behaves each January, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for January specifically, along with year-by-year records and how the month has changed over the decades.
