January is one of the cooler months of the year in East Hartford, with average highs near -0.2°C and lows around -9.1°C (mean -4.6°C). It is one of the drier months, averaging 88 mm of rainfall and 89% relative humidity across the period.
January is one of the cooler months of the year in East Hartford. Across 45 years of records, the warmest January in East Hartford was 2023 — when the month averaged 0.2°C — while the coldest was 1982 at -10.5°C. Typical January days reach -0.2°C with nights near -9.1°C. The long-term trend is warming, about 0.7°C per decade.
January is one of the drier months in East Hartford, averaging 88 mm of rainfall. The wettest January on record was 2024 with 185 mm, while the driest was 1981 at 17 mm.
Relative humidity in East Hartford during January averages 89%. The most humid January was 2003 at 98%, and the least humid was 2025 at 78%.
January receives about 1.8 kWh/m²/day of solar energy in East Hartford. The sunniest Januarys were 2012, 2016 and 2025 at 2.1 kWh/m²/day, and the cloudiest was 2023 at 1.5.
Average wind speed in East Hartford during January is 0.4 m/s. The windiest January was 2000 at 0.5 m/s, while the calmest were 1990, 2002 and 2023, 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 | -6.5°C | -4.0°C | -4.8°C | -4.4°C | -2.8°C | +3.7°C |
| Avg High | -1.9°C | 0.4°C | -0.5°C | 0.0°C | 1.3°C | +3.2°C |
| Avg Low | -11.2°C | -8.5°C | -9.2°C | -8.8°C | -7.0°C | +4.2°C |
| Avg Rain | 82 mm | 111 mm | 73 mm | 82 mm | 91 mm | +9 mm |
January temperatures in East Hartford have risen by about 4.6°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -29.6°C (1994) to a record high of 18.5°C (2007).
Rainfall in January is one of the drier months, averaging 88 mm, with a wettest year of 185 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 East Hartford
If your dates are flexible, the more temperate months of August and July tend to be the most comfortable for visiting East Hartford. That said, January — with days averaging -0.2°C and nights around -9.1°C (mean -4.6°C) and higher rainfall (88 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 | -0.3°C | -4.4°C | -8.4°C | 8.1°C | -17.4°C | 43 mm | 78% | 0.4 m/s | 2.1 |
| 2024 🌧️ | 1.7°C | -2.1°C | -5.9°C | 12.4°C | -13.0°C | 185 mm | 91% | 0.4 m/s | 1.6 |
| 2023 🔥 | 3.9°C | 0.2°C | -3.6°C | 11.8°C | -8.3°C | 147 mm | 92% | 0.3 m/s | 1.5 |
| 2022 | -1.2°C | -6.1°C | -11.1°C | 9.2°C | -19.8°C | 64 mm | 84% | 0.4 m/s | 2 |
| 2021 | 0.6°C | -3.3°C | -7.3°C | 5.2°C | -18.3°C | 60 mm | 89% | 0.4 m/s | 2 |
| 2020 | 3.2°C | -1.2°C | -5.5°C | 15.7°C | -12.7°C | 48 mm | 88% | 0.4 m/s | 1.9 |
| 2019 | -0.4°C | -4.9°C | -9.4°C | 12.0°C | -21.1°C | 134 mm | 88% | 0.4 m/s | 1.9 |
| 2018 | -0.5°C | -5.2°C | -9.9°C | 13.3°C | -25.5°C | 102 mm | 88% | 0.4 m/s | 1.9 |
| 2017 | 2.3°C | -1.2°C | -4.7°C | 12.8°C | -16.6°C | 85 mm | 88% | 0.4 m/s | 1.6 |
| 2016 | 1.6°C | -2.6°C | -6.8°C | 13.1°C | -16.5°C | 50 mm | 84% | 0.4 m/s | 2.1 |
| 2015 | -2.4°C | -7.1°C | -11.8°C | 5.3°C | -20.0°C | 94 mm | 89% | 0.4 m/s | 1.8 |
| 2014 | -1.1°C | -5.9°C | -10.6°C | 12.7°C | -23.7°C | 80 mm | 85% | 0.4 m/s | 1.8 |
| 2013 | 0.9°C | -3.5°C | -7.8°C | 14.3°C | -20.4°C | 50 mm | 87% | 0.4 m/s | 2 |
| 2012 | 2.5°C | -1.9°C | -6.3°C | 10.1°C | -16.6°C | 77 mm | 88% | 0.4 m/s | 2.1 |
| 2011 | -2.5°C | -7.3°C | -12.1°C | 7.2°C | -29.4°C | 77 mm | 95% | 0.4 m/s | 1.9 |
| 2010 | -0.3°C | -4.6°C | -8.9°C | 12.5°C | -17.6°C | 74 mm | 89% | 0.4 m/s | 1.9 |
| 2009 | -3.5°C | -8.5°C | -13.6°C | 1.5°C | -25.2°C | 75 mm | 95% | 0.4 m/s | 2 |
| 2008 | 2.0°C | -2.4°C | -6.8°C | 14.9°C | -17.9°C | 61 mm | 88% | 0.4 m/s | 1.9 |
| 2007 | 2.1°C | -2.0°C | -6.1°C | 18.5°C | -18.5°C | 84 mm | 87% | 0.4 m/s | 1.8 |
| 2006 | 3.4°C | -0.8°C | -5.0°C | 13.1°C | -14.8°C | 142 mm | 94% | 0.4 m/s | 1.7 |
| 2005 | -1.7°C | -6.0°C | -10.3°C | 12.7°C | -23.4°C | 111 mm | 91% | 0.4 m/s | 1.8 |
| 2004 | -5.2°C | -8.9°C | -12.6°C | 8.1°C | -22.9°C | 39 mm | 86% | 0.4 m/s | 2 |
| 2003 | -4.6°C | -9.4°C | -14.2°C | 2.5°C | -26.9°C | 57 mm | 98% | 0.4 m/s | 1.9 |
| 2002 | 3.8°C | -0.2°C | -4.2°C | 17.0°C | -12.0°C | 44 mm | 85% | 0.3 m/s | 1.7 |
| 2001 | 0.1°C | -4.5°C | -9.1°C | 4.7°C | -14.5°C | 43 mm | 93% | 0.4 m/s | 1.9 |
| 2000 | -1.0°C | -5.5°C | -9.9°C | 14.2°C | -20.3°C | 72 mm | 84% | 0.5 m/s | 1.8 |
| 1999 | 1.6°C | -3.3°C | -8.2°C | 14.8°C | -18.3°C | 147 mm | 85% | 0.4 m/s | 1.7 |
| 1998 | 2.8°C | -1.3°C | -5.5°C | 14.9°C | -18.5°C | 117 mm | 91% | 0.4 m/s | 1.6 |
| 1997 | -0.2°C | -4.4°C | -8.6°C | 9.3°C | -20.7°C | 99 mm | 86% | 0.4 m/s | 1.7 |
| 1996 | -1.7°C | -6.5°C | -11.3°C | 13.5°C | -26.0°C | 178 mm | 94% | 0.4 m/s | 1.6 |
| 1995 | 2.3°C | -1.5°C | -5.3°C | 16.0°C | -14.0°C | 98 mm | 90% | 0.4 m/s | 1.9 |
| 1994 | -4.8°C | -10.2°C | -15.5°C | 9.5°C | -29.6°C | 141 mm | 95% | 0.4 m/s | 1.8 |
| 1993 | 0.9°C | -3.4°C | -7.8°C | 12.6°C | -16.2°C | 70 mm | 88% | 0.4 m/s | 1.8 |
| 1992 | 0.8°C | -3.8°C | -8.3°C | 12.2°C | -16.9°C | 70 mm | 86% | 0.4 m/s | 1.9 |
| 1991 | -0.5°C | -4.9°C | -9.4°C | 6.7°C | -19.0°C | 73 mm | 88% | 0.4 m/s | 1.9 |
| 1990 | 3.0°C | -1.1°C | -5.1°C | 10.7°C | -13.7°C | 117 mm | 92% | 0.3 m/s | 1.6 |
| 1989 | 1.7°C | -2.7°C | -7.2°C | 9.3°C | -17.7°C | 41 mm | 85% | 0.3 m/s | 1.8 |
| 1988 | -2.2°C | -6.7°C | -11.3°C | 6.7°C | -22.5°C | 75 mm | 92% | 0.4 m/s | 1.9 |
| 1987 | -2.2°C | -6.9°C | -11.6°C | 6.1°C | -24.1°C | 130 mm | 97% | 0.4 m/s | 1.6 |
| 1986 | 0.4°C | -4.3°C | -9.0°C | 9.9°C | -20.9°C | 131 mm | 87% | 0.4 m/s | 1.9 |
| 1985 | -2.5°C | -6.7°C | -10.8°C | 8.3°C | -16.8°C | 28 mm | 84% | 0.4 m/s | 2 |
| 1984 | -2.6°C | -7.6°C | -12.6°C | 5.8°C | -25.4°C | 56 mm | 94% | 0.4 m/s | 1.6 |
| 1983 | 0.3°C | -4.1°C | -8.5°C | 10.3°C | -18.4°C | 127 mm | 87% | 0.4 m/s | — |
| 1982 ❄️ | -5.4°C | -10.5°C | -15.6°C | 6.8°C | -25.6°C | 132 mm | 93% | 0.4 m/s | — |
| 1981 | -4.6°C | -9.4°C | -14.3°C | 4.8°C | -23.1°C | 17 mm | 86% | 0.4 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around -0.2°C with lows near -9.1°C (mean -4.6°C), based on 45 years of NASA POWER data.
January averages 88 mm of rainfall in East Hartford, one of the drier months. The wettest on record was 185 mm in 2024.
The hottest January reached 18.5°C in 2007. The coldest dipped to -29.6°C in 1994.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 4.6°C. Daytime highs moved from -3°C to 0.9°C and overnight lows from -12.4°C to -7.3°C over the same span.
January is one of the cooler months of the year in East Hartford and one of the drier months, so plan for around -0.2°C daytime highs and -9.1°C at night.
Yes — January is the coldest month of the year in East Hartford, averaging -4.6°C.
For January in East Hartford, pack warm layers and a jacket for chilly mornings, with typical highs of -0.2°C and lows of -9.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 89% — quite humid.
Average wind speed in January is 0.4 m/s. The windiest January on record averaged 0.5 m/s (2000).
The wettest January on record was 2024 with 185 mm. On average, January sees 88 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 East Hartford 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.
