January is one of the cooler months of the year in Syracuse, with average highs near -2°C and lows around -9.2°C (mean -5.6°C). It is one of the drier months, averaging 71 mm of rainfall and 92% relative humidity across the period.
January is one of the cooler months of the year in Syracuse. Across 45 years of records, the warmest January in Syracuse was 2006 — when the month averaged -0.6°C — while the coldest was 1994 at -12.4°C. Typical January days reach -2°C with nights near -9.2°C. The long-term trend is warming, about 0.5°C per decade.
January is one of the drier months in Syracuse, averaging 71 mm of rainfall. The wettest January on record was 2024 with 122 mm, while the driest was 1981 at 33 mm.
Relative humidity in Syracuse during January averages 92%. The most humid January was 1994 at 97%, and the least humid was 1989 at 85%.
January receives about 1.3 kWh/m²/day of solar energy in Syracuse. The sunniest January was 2005 at 1.6 kWh/m²/day, and the cloudiest were 2021, 2023 and 2024, among others at 1.1.
Average wind speed in Syracuse during January is 1.4 m/s. The windiest January was 1997 at 1.8 m/s, while the calmest were 2011, 2021 and 2023, among others at 1.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -7.0°C | -5.2°C | -5.4°C | -5.5°C | -4.4°C | +2.6°C |
| Avg High | -3.3°C | -1.4°C | -1.9°C | -1.9°C | -1.0°C | +2.3°C |
| Avg Low | -10.8°C | -9.0°C | -8.8°C | -9.1°C | -7.8°C | +3°C |
| Avg Rain | 57 mm | 80 mm | 75 mm | 66 mm | 81 mm | +24 mm |
January temperatures in Syracuse have risen by about 3.5°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -30.5°C (1994) to a record high of 16.4°C (2020).
Rainfall in January is one of the drier months, averaging 71 mm, with a wettest year of 122 mm.
A quieter season to visit Syracuse
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Syracuse. That said, January — with days averaging -2°C and nights around -9.2°C (mean -5.6°C) and moderate rainfall (71 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 | -3.4°C | -6.5°C | -9.5°C | 2.9°C | -22.6°C | 61 mm | 92% | 1.5 m/s | 1.5 |
| 2024 🌧️ | 0.0°C | -2.7°C | -5.3°C | 7.9°C | -12.1°C | 122 mm | 91% | 1.2 m/s | 1.1 |
| 2023 | 1.7°C | -1.4°C | -4.4°C | 7.8°C | -11.9°C | 102 mm | 93% | 1.1 m/s | 1.1 |
| 2022 | -4.1°C | -8.7°C | -13.4°C | 7.7°C | -24.0°C | 56 mm | 92% | 1.3 m/s | 1.5 |
| 2021 | -1.3°C | -4.5°C | -7.7°C | 3.1°C | -20.7°C | 60 mm | 94% | 1.1 m/s | 1.1 |
| 2020 | 1.1°C | -2.8°C | -6.6°C | 16.4°C | -20.4°C | 84 mm | 92% | 1.4 m/s | 1.2 |
| 2019 | -2.9°C | -6.6°C | -10.3°C | 8.2°C | -20.0°C | 88 mm | 91% | 1.5 m/s | 1.3 |
| 2018 | -2.0°C | -6.0°C | -9.9°C | 15.7°C | -21.1°C | 85 mm | 93% | 1.5 m/s | 1.3 |
| 2017 | 0.5°C | -2.3°C | -5.1°C | 10.3°C | -14.1°C | 79 mm | 90% | 1.4 m/s | 1.2 |
| 2016 | -0.5°C | -4.1°C | -7.7°C | 10.3°C | -14.1°C | 43 mm | 86% | 1.5 m/s | 1.3 |
| 2015 | -3.9°C | -8.3°C | -12.6°C | 9.3°C | -20.5°C | 46 mm | 87% | 1.5 m/s | 1.4 |
| 2014 | -4.1°C | -7.9°C | -11.8°C | 7.2°C | -21.3°C | 56 mm | 88% | 1.6 m/s | 1.2 |
| 2013 | -0.1°C | -3.7°C | -7.4°C | 14.6°C | -22.0°C | 56 mm | 90% | 1.5 m/s | 1.2 |
| 2012 | 0.7°C | -2.8°C | -6.3°C | 7.3°C | -23.1°C | 98 mm | 90% | 1.6 m/s | 1.3 |
| 2011 | -3.9°C | -7.1°C | -10.2°C | 6.8°C | -23.1°C | 45 mm | 95% | 1.1 m/s | 1.3 |
| 2010 | -2.4°C | -5.8°C | -9.3°C | 9.8°C | -18.9°C | 63 mm | 93% | 1.3 m/s | 1.2 |
| 2009 | -4.8°C | -8.4°C | -12.0°C | 1.3°C | -22.5°C | 59 mm | 95% | 1.3 m/s | 1.3 |
| 2008 | 0.4°C | -2.8°C | -6.0°C | 14.2°C | -14.1°C | 52 mm | 90% | 1.5 m/s | 1.2 |
| 2007 | -0.1°C | -3.3°C | -6.6°C | 14.5°C | -16.5°C | 107 mm | 92% | 1.4 m/s | 1.3 |
| 2006 🔥 | 2.9°C | -0.6°C | -4.2°C | 9.9°C | -13.7°C | 102 mm | 92% | 1.5 m/s | 1.2 |
| 2005 | -3.3°C | -7.5°C | -11.7°C | 12.1°C | -24.1°C | 100 mm | 94% | 1.3 m/s | 1.6 |
| 2004 | -6.2°C | -9.1°C | -12.0°C | 12.5°C | -21.8°C | 77 mm | 95% | 1.5 m/s | 1.2 |
| 2003 | -5.9°C | -9.4°C | -12.8°C | 0.3°C | -20.5°C | 65 mm | 97% | 1.3 m/s | 1.4 |
| 2002 | 2.0°C | -1.3°C | -4.7°C | 11.7°C | -12.6°C | 69 mm | 89% | 1.4 m/s | 1.1 |
| 2001 | -1.7°C | -5.2°C | -8.8°C | 2.4°C | -15.6°C | 46 mm | 95% | 1.1 m/s | 1.3 |
| 2000 | -2.5°C | -6.1°C | -9.7°C | 13.7°C | -19.1°C | 78 mm | 88% | 1.6 m/s | 1.3 |
| 1999 | -2.1°C | -6.3°C | -10.5°C | 12.6°C | -24.3°C | 116 mm | 93% | 1.4 m/s | 1.3 |
| 1998 | 1.5°C | -2.0°C | -5.4°C | 12.4°C | -17.6°C | 119 mm | 94% | 1.2 m/s | 1.3 |
| 1997 | -2.0°C | -5.7°C | -9.5°C | 10.2°C | -17.8°C | 55 mm | 89% | 1.8 m/s | 1.2 |
| 1996 | -3.5°C | -7.5°C | -11.5°C | 12.0°C | -22.6°C | 93 mm | 94% | 1.6 m/s | 1.3 |
| 1995 | 1.1°C | -2.2°C | -5.6°C | 15.4°C | -16.2°C | 53 mm | 90% | 1.4 m/s | 1.4 |
| 1994 ❄️ | -7.9°C | -12.4°C | -17.0°C | 0.9°C | -30.5°C | 88 mm | 97% | 1.4 m/s | 1.3 |
| 1993 | -0.3°C | -3.9°C | -7.5°C | 9.6°C | -14.0°C | 76 mm | 91% | 1.4 m/s | 1.2 |
| 1992 | -1.1°C | -4.9°C | -8.7°C | 10.3°C | -17.4°C | 63 mm | 91% | 1.4 m/s | 1.3 |
| 1991 | -2.2°C | -5.8°C | -9.5°C | 3.6°C | -18.4°C | 60 mm | 90% | 1.4 m/s | 1.3 |
| 1990 | 2.2°C | -1.3°C | -4.8°C | 9.5°C | -11.3°C | 72 mm | 90% | 1.5 m/s | 1.2 |
| 1989 | 0.7°C | -3.5°C | -7.8°C | 7.0°C | -20.4°C | 39 mm | 85% | 1.7 m/s | 1.4 |
| 1988 | -2.5°C | -6.2°C | -9.9°C | 9.5°C | -19.8°C | 41 mm | 87% | 1.5 m/s | 1.3 |
| 1987 | -2.9°C | -6.4°C | -9.9°C | 3.0°C | -23.0°C | 82 mm | 95% | 1.3 m/s | 1.3 |
| 1986 | -2.0°C | -5.7°C | -9.3°C | 9.0°C | -20.9°C | 68 mm | 92% | 1.4 m/s | 1.3 |
| 1985 | -3.9°C | -7.2°C | -10.4°C | 9.7°C | -19.0°C | 63 mm | 92% | 1.5 m/s | 1.3 |
| 1984 | -4.9°C | -8.8°C | -12.7°C | 1.2°C | -26.5°C | 43 mm | 96% | 1.2 m/s | 1.4 |
| 1983 | -1.4°C | -4.9°C | -8.5°C | 5.3°C | -17.4°C | 55 mm | 89% | 1.3 m/s | — |
| 1982 | -6.4°C | -10.3°C | -14.2°C | 4.2°C | -26.9°C | 90 mm | 93% | 1.6 m/s | — |
| 1981 | -6.5°C | -10.3°C | -14.2°C | 1.4°C | -22.9°C | 33 mm | 97% | 1.2 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around -2°C with lows near -9.2°C (mean -5.6°C), based on 45 years of NASA POWER data.
January averages 71 mm of rainfall in Syracuse, one of the drier months. The wettest on record was 122 mm in 2024.
The hottest January reached 16.4°C in 2020. The coldest dipped to -30.5°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 3.5°C. Daytime highs moved from -4.6°C to -1.4°C and overnight lows from -12°C to -8.1°C over the same span.
January is one of the cooler months of the year in Syracuse and one of the drier months, so plan for around -2°C daytime highs and -9.2°C at night.
Yes — January is the coldest month of the year in Syracuse, averaging -5.6°C.
For January in Syracuse, pack warm layers and a jacket for chilly mornings, with typical highs of -2°C and lows of -9.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 92% — quite humid.
Average wind speed in January is 1.4 m/s. The windiest January on record averaged 1.8 m/s (1997).
The wettest January on record was 2024 with 122 mm. On average, January sees 71 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 Syracuse 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.
