January is one of the cooler months of the year in Macon, with average highs near 12.3°C and lows around 0.9°C (mean 6.6°C). It is about average for rainfall, averaging 107 mm of rainfall and 82% relative humidity across the period.
January is one of the cooler months of the year in Macon. Across 45 years of records, the warmest January in Macon was 2017 — when the month averaged 10.5°C — while the coldest was 2014 at 3.2°C. Typical January days reach 12.3°C with nights near 0.9°C. The long-term trend is warming, about 0.5°C per decade.
January is about average for rainfall in Macon, averaging 107 mm of rainfall. The wettest January on record was 2017 with 227 mm, while the driest was 1981 at 27 mm.
Relative humidity in Macon during January averages 82%. The most humid January was 1998 at 90%, and the least humid was 1981 at 69%.
January receives about 2.8 kWh/m²/day of solar energy in Macon. The sunniest January was 2018 at 3.3 kWh/m²/day, and the cloudiest were 1991 and 1993 at 2.1.
Average wind speed in Macon during January is 0.4 m/s. The windiest Januarys were 2023, 2024 and 2025, among others at 0.4 m/s, while the calmest were 2007, 2015 and 2021, among others at 0.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 4.9°C | 7.2°C | 7.2°C | 6.6°C | 7.5°C | +2.6°C |
| Avg High | 10.5°C | 12.7°C | 13.0°C | 12.3°C | 13.3°C | +2.8°C |
| Avg Low | -0.7°C | 1.7°C | 1.3°C | 0.8°C | 1.8°C | +2.5°C |
| Avg Rain | 93 mm | 142 mm | 83 mm | 102 mm | 121 mm | +28 mm |
January temperatures in Macon have risen by about 2.8°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -18.1°C (1985) to a record high of 25.5°C (2002).
Rainfall in January is about average for rainfall, averaging 107 mm, with a wettest year of 227 mm.
A quieter season to visit Macon
If your dates are flexible, the more temperate months of May and September tend to be the most comfortable for visiting Macon. That said, January — with days averaging 12.3°C and nights around 0.9°C (mean 6.6°C) and higher rainfall (107 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 | 10.5°C | 4.3°C | -1.8°C | 22.1°C | -6.9°C | 68 mm | 76% | 0.4 m/s | 3.2 |
| 2024 | 12.9°C | 6.9°C | 0.9°C | 23.6°C | -8.3°C | 141 mm | 80% | 0.4 m/s | 3 |
| 2023 | 16.1°C | 10.1°C | 4.1°C | 22.9°C | -5.2°C | 188 mm | 85% | 0.4 m/s | 2.6 |
| 2022 | 12.1°C | 6.5°C | 0.9°C | 24.9°C | -5.6°C | 84 mm | 79% | 0.4 m/s | 3.2 |
| 2021 | 13.3°C | 7.6°C | 2.0°C | 22.4°C | -3.7°C | 102 mm | 84% | 0.3 m/s | 2.6 |
| 2020 | 14.9°C | 9.7°C | 4.6°C | 23.8°C | -5.0°C | 140 mm | 86% | 0.4 m/s | 2.7 |
| 2019 | 13.6°C | 7.9°C | 2.2°C | 21.9°C | -5.6°C | 141 mm | 83% | 0.4 m/s | 2.8 |
| 2018 | 10.6°C | 4.5°C | -1.6°C | 19.3°C | -7.4°C | 72 mm | 74% | 0.4 m/s | 3.3 |
| 2017 🔥 🌧️ | 16.0°C | 10.5°C | 4.9°C | 23.5°C | -11.6°C | 227 mm | 86% | 0.4 m/s | 2.9 |
| 2016 | 10.7°C | 5.4°C | 0.2°C | 17.3°C | -5.8°C | 74 mm | 85% | 0.4 m/s | 2.8 |
| 2015 | 11.9°C | 6.1°C | 0.2°C | 19.2°C | -8.9°C | 69 mm | 81% | 0.3 m/s | 2.9 |
| 2014 ❄️ | 9.4°C | 3.2°C | -3.1°C | 19.9°C | -10.0°C | 77 mm | 78% | 0.4 m/s | 3.1 |
| 2013 | 16.1°C | 10.3°C | 4.6°C | 24.1°C | -3.2°C | 69 mm | 84% | 0.4 m/s | 2.7 |
| 2012 | 15.6°C | 9.3°C | 2.9°C | 22.5°C | -5.7°C | 73 mm | 80% | 0.4 m/s | 3.1 |
| 2011 | 10.3°C | 4.4°C | -1.5°C | 20.5°C | -7.3°C | 71 mm | 80% | 0.4 m/s | 2.9 |
| 2010 | 9.2°C | 4.1°C | -0.9°C | 20.1°C | -8.9°C | 145 mm | 83% | 0.4 m/s | 3.1 |
| 2009 | 12.7°C | 6.9°C | 1.0°C | 21.5°C | -7.2°C | 52 mm | 82% | 0.4 m/s | 2.9 |
| 2008 | 11.0°C | 5.6°C | 0.2°C | 21.9°C | -8.0°C | 109 mm | 81% | 0.4 m/s | 2.9 |
| 2007 | 13.7°C | 8.0°C | 2.3°C | 22.0°C | -7.1°C | 115 mm | 82% | 0.3 m/s | 2.7 |
| 2006 | 16.1°C | 10.3°C | 4.4°C | 22.4°C | -3.3°C | 80 mm | 82% | 0.4 m/s | 3 |
| 2005 | 14.6°C | 8.8°C | 3.1°C | 22.9°C | -7.0°C | 53 mm | 82% | 0.4 m/s | 2.9 |
| 2004 | 12.8°C | 6.5°C | 0.2°C | 22.8°C | -6.9°C | 86 mm | 77% | 0.3 m/s | 2.9 |
| 2003 | 10.6°C | 4.8°C | -0.9°C | 18.3°C | -8.6°C | 43 mm | 77% | 0.4 m/s | 3.2 |
| 2002 | 15.0°C | 8.6°C | 2.1°C | 25.5°C | -6.9°C | 88 mm | 79% | 0.4 m/s | 2.7 |
| 2001 | 11.3°C | 5.5°C | -0.4°C | 21.3°C | -7.7°C | 74 mm | 82% | 0.4 m/s | 3 |
| 2000 | 12.1°C | 6.5°C | 0.9°C | 22.7°C | -7.3°C | 133 mm | 79% | 0.4 m/s | 2.6 |
| 1999 | 15.3°C | 8.8°C | 2.3°C | 23.1°C | -7.3°C | 152 mm | 81% | 0.4 m/s | 2.9 |
| 1998 | 13.2°C | 8.3°C | 3.4°C | 21.4°C | -5.7°C | 155 mm | 90% | 0.4 m/s | 2.8 |
| 1997 | 12.7°C | 7.4°C | 2.0°C | 22.3°C | -7.8°C | 139 mm | 82% | 0.4 m/s | 2.7 |
| 1996 | 12.4°C | 5.9°C | -0.6°C | 22.3°C | -6.7°C | 140 mm | 84% | 0.4 m/s | 2.8 |
| 1995 | 12.7°C | 6.8°C | 0.9°C | 20.2°C | -6.4°C | 109 mm | 85% | 0.4 m/s | 2.9 |
| 1994 | 9.6°C | 4.2°C | -1.2°C | 19.7°C | -10.1°C | 106 mm | 81% | 0.4 m/s | 2.6 |
| 1993 | 13.0°C | 8.2°C | 3.4°C | 18.3°C | -3.0°C | 129 mm | 89% | 0.3 m/s | 2.1 |
| 1992 | 11.9°C | 6.6°C | 1.4°C | 19.1°C | -6.7°C | 152 mm | 85% | 0.4 m/s | 2.8 |
| 1991 | 11.9°C | 7.2°C | 2.4°C | 19.6°C | -5.4°C | 219 mm | 86% | 0.4 m/s | 2.1 |
| 1990 | 14.2°C | 8.6°C | 3.1°C | 21.2°C | -4.7°C | 120 mm | 87% | 0.4 m/s | 2.9 |
| 1989 | 14.9°C | 9.0°C | 3.1°C | 21.8°C | -4.0°C | 47 mm | 80% | 0.4 m/s | 2.7 |
| 1988 | 8.8°C | 3.8°C | -1.3°C | 20.1°C | -7.3°C | 134 mm | 83% | 0.4 m/s | 2.5 |
| 1987 | 9.9°C | 5.0°C | 0.1°C | 18.7°C | -5.1°C | 171 mm | 88% | 0.4 m/s | 2.6 |
| 1986 | 11.0°C | 4.9°C | -1.3°C | 19.8°C | -12.0°C | 35 mm | 80% | 0.4 m/s | 3.1 |
| 1985 | 9.4°C | 3.6°C | -2.3°C | 22.0°C | -18.1°C | 92 mm | 76% | 0.4 m/s | 2.8 |
| 1984 | 10.2°C | 4.8°C | -0.6°C | 16.2°C | -8.0°C | 122 mm | 85% | 0.3 m/s | 2.7 |
| 1983 | 9.6°C | 4.9°C | 0.2°C | 18.7°C | -5.8°C | 108 mm | 87% | 0.4 m/s | — |
| 1982 | 10.0°C | 4.4°C | -1.3°C | 20.7°C | -15.7°C | 100 mm | 84% | 0.4 m/s | — |
| 1981 | 10.4°C | 4.0°C | -2.5°C | 18.8°C | -7.8°C | 27 mm | 69% | 0.4 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 12.3°C with lows near 0.9°C (mean 6.6°C), based on 45 years of NASA POWER data.
January averages 107 mm of rainfall in Macon, about average for rainfall. The wettest on record was 227 mm in 2017.
The hottest January reached 25.5°C in 2002. The coldest dipped to -18.1°C in 1985.
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 9.9°C to 13°C and overnight lows from -1.3°C to 1.2°C over the same span.
January is one of the cooler months of the year in Macon and about average for rainfall, so plan for around 12.3°C daytime highs and 0.9°C at night.
Yes — January is the coldest month of the year in Macon, averaging 6.6°C.
For January in Macon, pack warm layers and a jacket for chilly mornings, with typical highs of 12.3°C and lows of 0.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 82% — quite humid.
Average wind speed in January is 0.4 m/s. The windiest January on record averaged 0.4 m/s (1981).
The wettest January on record was 2017 with 227 mm. On average, January sees 107 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 Macon 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.
