January is one of the cooler months of the year in Brockton, with average highs near 1.2°C and lows around -7.1°C (mean -2.9°C). It is about average for rainfall, averaging 96 mm of rainfall and 87% relative humidity across the period.
January is one of the cooler months of the year in Brockton. Across 45 years of records, the warmest January in Brockton was 2023 — when the month averaged 1.5°C — while the coldest was 1981 at -8.4°C. Typical January days reach 1.2°C with nights near -7.1°C. The long-term trend is warming, about 0.7°C per decade.
January is about average for rainfall in Brockton, averaging 96 mm of rainfall. The wettest January on record was 2024 with 208 mm, while the driest was 1981 at 28 mm.
Relative humidity in Brockton during January averages 87%. The most humid January was 1987 at 94%, and the least humid was 2025 at 78%.
January receives about 1.8 kWh/m²/day of solar energy in Brockton. The sunniest Januarys were 2009, 2012 and 2025, among others at 2 kWh/m²/day, and the cloudiest were 1984 and 2023 at 1.5.
Average wind speed in Brockton during January is 0.8 m/s. The windiest Januarys were 2004, 2018 and 2025, among others at 0.9 m/s, while the calmest were 2002, 2020 and 2023, among others at 0.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -4.8°C | -2.3°C | -3.1°C | -2.7°C | -1.3°C | +3.5°C |
| Avg High | -0.4°C | 1.8°C | 0.9°C | 1.5°C | 2.5°C | +2.9°C |
| Avg Low | -9.2°C | -6.5°C | -7.2°C | -6.9°C | -5.2°C | +4°C |
| Avg Rain | 88 mm | 116 mm | 81 mm | 94 mm | 105 mm | +17 mm |
January temperatures in Brockton have risen by about 4.3°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -25.9°C (1984) to a record high of 17.5°C (2007).
Rainfall in January is about average for rainfall, averaging 96 mm, with a wettest year of 208 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.6°C per decade while lows rose 0.8°C per decade, narrowing the gap between day and night.
A quieter season to visit Brockton
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting Brockton. That said, January — with days averaging 1.2°C and nights around -7.1°C (mean -2.9°C) and higher rainfall (96 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 | 0.6°C | -3.2°C | -7.0°C | 8.8°C | -15.1°C | 54 mm | 78% | 0.9 m/s | 2 |
| 2024 🌧️ | 2.6°C | -0.9°C | -4.4°C | 12.9°C | -11.4°C | 208 mm | 89% | 0.8 m/s | 1.6 |
| 2023 🔥 | 5.0°C | 1.5°C | -2.0°C | 12.4°C | -6.9°C | 181 mm | 92% | 0.7 m/s | 1.5 |
| 2022 | 0.5°C | -4.1°C | -8.7°C | 10.3°C | -16.2°C | 85 mm | 83% | 0.8 m/s | 1.9 |
| 2021 | 2.0°C | -1.7°C | -5.4°C | 10.4°C | -15.4°C | 59 mm | 87% | 0.8 m/s | 1.9 |
| 2020 | 4.4°C | 0.4°C | -3.6°C | 16.8°C | -12.1°C | 43 mm | 86% | 0.7 m/s | 1.9 |
| 2019 | 1.1°C | -3.2°C | -7.5°C | 13.3°C | -18.5°C | 143 mm | 87% | 0.8 m/s | 1.9 |
| 2018 | 0.8°C | -3.5°C | -7.8°C | 14.4°C | -22.0°C | 126 mm | 88% | 0.9 m/s | 1.8 |
| 2017 | 4.0°C | 0.4°C | -3.1°C | 13.7°C | -16.0°C | 116 mm | 86% | 0.8 m/s | 1.7 |
| 2016 | 2.7°C | -1.3°C | -5.3°C | 13.4°C | -13.9°C | 78 mm | 84% | 0.8 m/s | 1.9 |
| 2015 | -0.8°C | -5.0°C | -9.2°C | 7.7°C | -19.0°C | 99 mm | 88% | 0.8 m/s | 1.7 |
| 2014 | 0.6°C | -3.8°C | -8.3°C | 13.2°C | -20.5°C | 88 mm | 84% | 0.8 m/s | 1.8 |
| 2013 | 2.4°C | -1.7°C | -5.7°C | 14.6°C | -16.8°C | 44 mm | 83% | 0.8 m/s | 1.9 |
| 2012 | 4.1°C | -0.2°C | -4.6°C | 11.7°C | -13.5°C | 78 mm | 86% | 0.8 m/s | 2 |
| 2011 | -0.9°C | -5.1°C | -9.4°C | 9.9°C | -24.6°C | 85 mm | 92% | 0.8 m/s | 1.9 |
| 2010 | 0.7°C | -3.5°C | -7.7°C | 12.6°C | -16.2°C | 84 mm | 89% | 0.8 m/s | 1.9 |
| 2009 | -2.0°C | -6.5°C | -11.0°C | 4.4°C | -20.7°C | 92 mm | 91% | 0.8 m/s | 2 |
| 2008 | 3.4°C | -1.0°C | -5.3°C | 15.1°C | -14.9°C | 70 mm | 85% | 0.8 m/s | 1.8 |
| 2007 | 3.3°C | -0.6°C | -4.6°C | 17.5°C | -16.6°C | 83 mm | 84% | 0.8 m/s | 1.8 |
| 2006 | 4.6°C | 0.9°C | -2.7°C | 13.4°C | -12.7°C | 139 mm | 92% | 0.8 m/s | 1.6 |
| 2005 | -0.5°C | -4.4°C | -8.4°C | 13.6°C | -20.3°C | 111 mm | 92% | 0.8 m/s | 1.8 |
| 2004 | -3.8°C | -7.4°C | -11.1°C | 9.3°C | -21.4°C | 39 mm | 83% | 0.9 m/s | 1.8 |
| 2003 | -2.4°C | -6.5°C | -10.5°C | 3.8°C | -19.5°C | 57 mm | 89% | 0.8 m/s | 1.9 |
| 2002 | 4.8°C | 1.1°C | -2.7°C | 16.7°C | -7.2°C | 72 mm | 84% | 0.7 m/s | 1.7 |
| 2001 | 1.2°C | -3.0°C | -7.1°C | 7.5°C | -11.8°C | 60 mm | 90% | 0.7 m/s | 1.9 |
| 2000 | 0.5°C | -4.0°C | -8.5°C | 14.5°C | -17.8°C | 87 mm | 84% | 0.9 m/s | 1.7 |
| 1999 | 2.8°C | -1.7°C | -6.2°C | 15.2°C | -16.8°C | 152 mm | 83% | 0.8 m/s | 1.7 |
| 1998 | 3.7°C | 0.2°C | -3.4°C | 14.5°C | -15.0°C | 157 mm | 90% | 0.8 m/s | 1.6 |
| 1997 | 1.2°C | -2.9°C | -7.0°C | 10.8°C | -18.8°C | 96 mm | 85% | 0.9 m/s | 1.7 |
| 1996 | 0.1°C | -4.4°C | -9.0°C | 14.3°C | -22.3°C | 162 mm | 93% | 0.8 m/s | 1.6 |
| 1995 | 4.1°C | 0.6°C | -2.9°C | 16.0°C | -11.9°C | 96 mm | 86% | 0.7 m/s | 1.9 |
| 1994 | -2.3°C | -7.2°C | -12.1°C | 10.5°C | -24.2°C | 139 mm | 92% | 0.8 m/s | 1.7 |
| 1993 | 2.0°C | -2.1°C | -6.1°C | 13.3°C | -13.2°C | 68 mm | 86% | 0.8 m/s | 1.7 |
| 1992 | 1.5°C | -2.8°C | -7.1°C | 11.6°C | -15.8°C | 81 mm | 84% | 0.8 m/s | 1.8 |
| 1991 | 0.9°C | -3.4°C | -7.7°C | 8.3°C | -17.1°C | 85 mm | 85% | 0.8 m/s | 1.7 |
| 1990 | 3.9°C | 0.2°C | -3.5°C | 11.8°C | -10.1°C | 126 mm | 90% | 0.7 m/s | 1.7 |
| 1989 | 3.2°C | -1.1°C | -5.3°C | 10.0°C | -16.2°C | 37 mm | 82% | 0.7 m/s | 1.7 |
| 1988 | -0.6°C | -4.9°C | -9.2°C | 8.8°C | -19.7°C | 77 mm | 89% | 0.8 m/s | 1.8 |
| 1987 | -0.4°C | -4.7°C | -9.0°C | 6.9°C | -18.6°C | 154 mm | 94% | 0.8 m/s | 1.7 |
| 1986 | 1.9°C | -2.5°C | -7.0°C | 11.7°C | -19.6°C | 136 mm | 83% | 0.8 m/s | 1.9 |
| 1985 | -1.5°C | -5.7°C | -9.9°C | 10.4°C | -15.3°C | 32 mm | 84% | 0.8 m/s | 2 |
| 1984 | -1.3°C | -5.6°C | -10.0°C | 6.8°C | -25.9°C | 67 mm | 94% | 0.7 m/s | 1.5 |
| 1983 | 1.6°C | -2.3°C | -6.1°C | 12.6°C | -16.8°C | 121 mm | 86% | 0.7 m/s | — |
| 1982 | -3.2°C | -8.2°C | -13.1°C | 12.5°C | -22.0°C | 137 mm | 91% | 0.9 m/s | — |
| 1981 ❄️ | -3.6°C | -8.4°C | -13.1°C | 6.4°C | -20.9°C | 28 mm | 86% | 0.8 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 1.2°C with lows near -7.1°C (mean -2.9°C), based on 45 years of NASA POWER data.
January averages 96 mm of rainfall in Brockton, about average for rainfall. The wettest on record was 208 mm in 2024.
The hottest January reached 17.5°C in 2007. The coldest dipped to -25.9°C in 1984.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 4.3°C. Daytime highs moved from -1.6°C to 2.1°C and overnight lows from -10.4°C to -5.5°C over the same span.
January is one of the cooler months of the year in Brockton and about average for rainfall, so plan for around 1.2°C daytime highs and -7.1°C at night.
Yes — January is the coldest month of the year in Brockton, averaging -2.9°C.
For January in Brockton, pack warm layers and a jacket for chilly mornings, with typical highs of 1.2°C and lows of -7.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 87% — quite humid.
Average wind speed in January is 0.8 m/s. The windiest January on record averaged 0.9 m/s (1982).
The wettest January on record was 2024 with 208 mm. On average, January sees 96 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 Brockton 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.
