January is one of the cooler months of the year in Middleton, with average highs near 5°C and lows around 0.6°C (mean 2.8°C). It is about average for rainfall, averaging 85 mm of rainfall and 95% relative humidity across the period.
January is one of the cooler months of the year in Middleton. Across 45 years of records, the warmest January in Middleton was 2007 — when the month averaged 5.4°C — while the coldest was 1985 at -1°C. Typical January days reach 5°C with nights near 0.6°C. The long-term trend is warming, about 0.3°C per decade.
January is about average for rainfall in Middleton, averaging 85 mm of rainfall. The wettest January on record was 2008 with 162 mm, while the driest was 1997 at 19 mm.
Relative humidity in Middleton during January averages 95%. The most humid January was 1982 at 97%, and the least humid was 2007 at 93%.
January receives about 0.7 kWh/m²/day of solar energy in Middleton. The sunniest Januarys were 1985, 1992 and 2001 at 0.8 kWh/m²/day, and the cloudiest were 1984 and 2008 at 0.5.
Average wind speed in Middleton during January is 4 m/s. The windiest January was 1983 at 5.8 m/s, while the calmest was 1997 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 1.9°C | 2.7°C | 3.5°C | 2.6°C | 3.3°C | +1.4°C |
| Avg High | 4.1°C | 4.9°C | 5.7°C | 4.8°C | 5.6°C | +1.5°C |
| Avg Low | -0.3°C | 0.5°C | 1.3°C | 0.4°C | 1.0°C | +1.3°C |
| Avg Rain | 84 mm | 90 mm | 82 mm | 81 mm | 90 mm | +6 mm |
January temperatures in Middleton have risen by about 1.2°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -9.9°C (1982) to a record high of 12.4°C (2015).
Rainfall in January is about average for rainfall, averaging 85 mm, with a wettest year of 162 mm.
A quieter season to visit Middleton
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Middleton. That said, January — with days averaging 5°C and nights around 0.6°C (mean 2.8°C) and higher rainfall (85 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 | 3.9°C | 1.6°C | -0.7°C | 9.6°C | -7.8°C | 103 mm | 97% | 2.9 m/s | 0.7 |
| 2024 | 5.9°C | 3.5°C | 1.0°C | 11.1°C | -5.0°C | 99 mm | 95% | 3.8 m/s | 0.7 |
| 2023 | 6.5°C | 4.1°C | 1.8°C | 11.1°C | -3.3°C | 75 mm | 95% | 4.2 m/s | 0.7 |
| 2022 | 6.1°C | 3.5°C | 0.9°C | 12.2°C | -2.9°C | 33 mm | 96% | 3.4 m/s | 0.7 |
| 2021 | 3.7°C | 1.7°C | -0.3°C | 9.6°C | -2.9°C | 153 mm | 96% | 3.3 m/s | 0.6 |
| 2020 | 7.2°C | 5.1°C | 3.1°C | 10.8°C | -0.6°C | 78 mm | 96% | 4.1 m/s | 0.6 |
| 2019 | 4.6°C | 2.3°C | 0.0°C | 9.3°C | -3.4°C | 39 mm | 95% | 3.3 m/s | 0.7 |
| 2018 | 5.7°C | 3.7°C | 1.6°C | 11.1°C | -2.3°C | 99 mm | 95% | 4.4 m/s | 0.7 |
| 2017 | 4.9°C | 2.8°C | 0.6°C | 9.0°C | -3.4°C | 60 mm | 96% | 3.1 m/s | 0.6 |
| 2016 | 5.9°C | 3.7°C | 1.5°C | 11.9°C | -3.4°C | 127 mm | 96% | 4.1 m/s | 0.6 |
| 2015 | 5.4°C | 2.9°C | 0.4°C | 12.4°C | -3.3°C | 76 mm | 94% | 4.8 m/s | 0.7 |
| 2014 | 6.0°C | 4.0°C | 2.0°C | 9.1°C | -2.0°C | 141 mm | 96% | 4.3 m/s | 0.6 |
| 2013 | 3.7°C | 1.8°C | -0.1°C | 10.2°C | -6.8°C | 72 mm | 96% | 3.4 m/s | 0.6 |
| 2012 | 6.2°C | 3.8°C | 1.4°C | 10.5°C | -2.7°C | 72 mm | 95% | 4.3 m/s | 0.7 |
| 2011 | 4.0°C | 1.5°C | -1.0°C | 9.8°C | -4.9°C | 66 mm | 96% | 3.1 m/s | 0.7 |
| 2010 | 1.6°C | -0.3°C | -2.1°C | 5.5°C | -7.0°C | 60 mm | 97% | 3 m/s | 0.6 |
| 2009 | 3.5°C | 1.4°C | -0.6°C | 7.9°C | -6.2°C | 91 mm | 96% | 3.5 m/s | 0.7 |
| 2008 🌧️ | 7.3°C | 5.1°C | 2.9°C | 11.3°C | -1.6°C | 162 mm | 95% | 4.9 m/s | 0.5 |
| 2007 🔥 | 7.6°C | 5.4°C | 3.2°C | 11.2°C | -3.0°C | 106 mm | 93% | 5.4 m/s | 0.7 |
| 2006 | 4.9°C | 2.6°C | 0.3°C | 9.3°C | -2.8°C | 32 mm | 96% | 3.1 m/s | 0.7 |
| 2005 | 7.0°C | 4.7°C | 2.3°C | 11.2°C | -2.5°C | 54 mm | 94% | 5.3 m/s | 0.6 |
| 2004 | 5.7°C | 3.6°C | 1.6°C | 10.4°C | -3.2°C | 113 mm | 96% | 4.1 m/s | 0.6 |
| 2003 | 5.0°C | 3.0°C | 1.0°C | 11.4°C | -5.5°C | 79 mm | 95% | 4.3 m/s | 0.7 |
| 2002 | 6.2°C | 3.9°C | 1.6°C | 10.7°C | -5.7°C | 75 mm | 96% | 4.1 m/s | 0.6 |
| 2001 | 3.6°C | 1.6°C | -0.5°C | 7.0°C | -3.9°C | 52 mm | 97% | 3.1 m/s | 0.8 |
| 2000 | 5.9°C | 3.5°C | 1.1°C | 9.8°C | -2.1°C | 61 mm | 96% | 4.1 m/s | 0.7 |
| 1999 | 6.1°C | 4.0°C | 1.9°C | 11.2°C | -2.9°C | 123 mm | 96% | 4.4 m/s | 0.7 |
| 1998 | 5.5°C | 3.4°C | 1.2°C | 11.3°C | -2.8°C | 121 mm | 95% | 3.9 m/s | 0.6 |
| 1997 | 2.7°C | 0.5°C | -1.7°C | 5.9°C | -5.4°C | 19 mm | 96% | 2.4 m/s | 0.7 |
| 1996 | 3.8°C | 2.5°C | 1.1°C | 8.8°C | -3.7°C | 56 mm | 94% | 4.5 m/s | 0.6 |
| 1995 | 4.7°C | 2.3°C | -0.2°C | 10.3°C | -4.6°C | 136 mm | 95% | 4.7 m/s | 0.6 |
| 1994 | 5.3°C | 3.1°C | 1.0°C | 9.6°C | -3.9°C | 105 mm | 95% | 4.7 m/s | 0.6 |
| 1993 | 6.0°C | 3.4°C | 0.8°C | 11.2°C | -6.4°C | 92 mm | 94% | 5.3 m/s | 0.6 |
| 1992 | 4.8°C | 2.4°C | 0.1°C | 10.1°C | -5.4°C | 43 mm | 95% | 3 m/s | 0.8 |
| 1991 | 3.7°C | 1.2°C | -1.4°C | 10.6°C | -5.3°C | 78 mm | 94% | 3.6 m/s | 0.7 |
| 1990 | 6.7°C | 4.5°C | 2.3°C | 11.5°C | -1.5°C | 124 mm | 95% | 5 m/s | 0.6 |
| 1989 | 6.8°C | 4.3°C | 1.8°C | 10.5°C | -2.0°C | 36 mm | 95% | 4 m/s | 0.7 |
| 1988 | 5.3°C | 3.5°C | 1.6°C | 11.1°C | -2.5°C | 130 mm | 96% | 4.1 m/s | 0.7 |
| 1987 | 1.3°C | -0.9°C | -3.1°C | 7.7°C | -9.1°C | 38 mm | 95% | 2.9 m/s | 0.6 |
| 1986 | 3.2°C | 1.2°C | -0.8°C | 9.1°C | -5.5°C | 110 mm | 95% | 5 m/s | 0.6 |
| 1985 ❄️ | 1.3°C | -1.0°C | -3.3°C | 7.8°C | -9.9°C | 69 mm | 96% | 3.2 m/s | 0.8 |
| 1984 | 3.3°C | 1.2°C | -0.9°C | 9.9°C | -6.7°C | 123 mm | 93% | 4.8 m/s | 0.5 |
| 1983 | 6.8°C | 4.5°C | 2.2°C | 11.2°C | -1.8°C | 94 mm | 94% | 5.8 m/s | — |
| 1982 | 3.2°C | 1.1°C | -1.0°C | 9.5°C | -9.9°C | 83 mm | 97% | 3.6 m/s | — |
| 1981 | 5.3°C | 2.9°C | 0.5°C | 9.1°C | -3.4°C | 73 mm | 95% | 4.2 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 5°C with lows near 0.6°C (mean 2.8°C), based on 45 years of NASA POWER data.
January averages 85 mm of rainfall in Middleton, about average for rainfall. The wettest on record was 162 mm in 2008.
The hottest January reached 12.4°C in 2015. The coldest dipped to -9.9°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 1.2°C. Daytime highs moved from 4°C to 5.2°C and overnight lows from -0.5°C to 0.5°C over the same span.
January is one of the cooler months of the year in Middleton and about average for rainfall, so plan for around 5°C daytime highs and 0.6°C at night.
Yes — January is the coldest month of the year in Middleton, averaging 2.8°C.
For January in Middleton, pack warm layers and a jacket for chilly mornings, with typical highs of 5°C and lows of 0.6°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 95% — quite humid.
Average wind speed in January is 4 m/s. The windiest January on record averaged 5.8 m/s (1983).
The wettest January on record was 2008 with 162 mm. On average, January sees 85 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 Middleton 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.
