January is one of the warmer months of the year in Rutherford, with average highs near 31.5°C and lows around 17.4°C (mean 24.5°C). It is a relatively wet time of year, averaging 87 mm of rainfall and 63% relative humidity across the period.
January is one of the warmer months of the year in Rutherford. Across 45 years of records, the warmest January in Rutherford was 2019 — when the month averaged 28.7°C — while the coldest was 1989 at 21.2°C. Typical January days reach 31.5°C with nights near 17.4°C. The long-term trend is warming, about 0.3°C per decade.
January is a relatively wet time of year in Rutherford, averaging 87 mm of rainfall. The wettest January on record was 2016 with 233 mm, while the driest was 2014 at 14 mm.
Relative humidity in Rutherford during January averages 63%. The most humid January was 2016 at 79%, and the least humid was 1985 at 47%.
January receives about 6.5 kWh/m²/day of solar energy in Rutherford. The sunniest January was 1985 at 7.6 kWh/m²/day, and the cloudiest was 1996 at 5.4.
Average wind speed in Rutherford during January is 1.4 m/s. The windiest Januarys were 2006 and 2017 at 1.6 m/s, while the calmest were 2015, 2016 and 2019, among others at 1.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 23.9°C | 24.0°C | 24.8°C | 25.2°C | 24.4°C | +0.5°C |
| Avg High | 31.1°C | 30.8°C | 32.1°C | 32.3°C | 30.9°C | -0.2°C |
| Avg Low | 16.7°C | 17.1°C | 17.5°C | 18.1°C | 18.0°C | +1.3°C |
| Avg Rain | 100 mm | 93 mm | 61 mm | 93 mm | 88 mm | -12 mm |
January temperatures in Rutherford have fallen by about 0.6°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 10.4°C (1990) to a record high of 44°C (2001).
Rainfall in January is a relatively wet time of year, averaging 87 mm, with a wettest year of 233 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.2°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
A good time to visit Rutherford
January is a good time to visit Rutherford, with days averaging 31.5°C and nights around 17.4°C (mean 24.5°C, warmer than Rutherford's yearly average) and higher rainfall. December and March are marginally more temperate, but January still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 30.4°C | 24.0°C | 17.6°C | 39.9°C | 13.7°C | 132 mm | 68% | 1.5 m/s | 5.9 |
| 2024 | 32.2°C | 25.6°C | 19.0°C | 40.8°C | 14.6°C | 65 mm | 65% | 1.5 m/s | 6.2 |
| 2023 | 30.4°C | 23.5°C | 16.6°C | 37.4°C | 12.3°C | 90 mm | 67% | 1.3 m/s | 6.7 |
| 2022 | 29.1°C | 23.6°C | 18.0°C | 33.8°C | 14.5°C | 92 mm | 73% | 1.3 m/s | 6.1 |
| 2021 | 29.0°C | 22.8°C | 16.7°C | 37.7°C | 12.3°C | 91 mm | 68% | 1.3 m/s | 6.4 |
| 2020 | 34.3°C | 27.1°C | 19.8°C | 43.3°C | 16.0°C | 57 mm | 61% | 1.4 m/s | 6.2 |
| 2019 🔥 | 36.5°C | 28.7°C | 20.8°C | 42.5°C | 18.0°C | 56 mm | 57% | 1.2 m/s | 7.1 |
| 2018 | 34.3°C | 26.5°C | 18.6°C | 43.3°C | 12.7°C | 16 mm | 52% | 1.3 m/s | 7.1 |
| 2017 | 34.3°C | 26.7°C | 19.2°C | 42.1°C | 15.3°C | 59 mm | 59% | 1.6 m/s | 6.4 |
| 2016 🌧️ | 27.0°C | 21.6°C | 16.2°C | 35.6°C | 11.9°C | 233 mm | 79% | 1.2 m/s | 6.2 |
| 2015 | 30.1°C | 23.9°C | 17.7°C | 35.9°C | 11.6°C | 142 mm | 68% | 1.2 m/s | 6.7 |
| 2014 | 33.6°C | 25.4°C | 17.2°C | 41.2°C | 12.9°C | 14 mm | 54% | 1.4 m/s | 7.2 |
| 2013 | 32.9°C | 25.6°C | 18.2°C | 42.8°C | 14.5°C | 172 mm | 63% | 1.5 m/s | 6.3 |
| 2012 | 29.3°C | 22.9°C | 16.5°C | 36.6°C | 11.5°C | 86 mm | 67% | 1.4 m/s | 6.1 |
| 2011 | 32.5°C | 25.4°C | 18.4°C | 43.4°C | 14.8°C | 52 mm | 64% | 1.4 m/s | 6.5 |
| 2010 | 32.1°C | 25.3°C | 18.4°C | 39.5°C | 11.3°C | 102 mm | 64% | 1.3 m/s | 6.5 |
| 2009 | 33.4°C | 25.4°C | 17.4°C | 40.1°C | 11.9°C | 25 mm | 55% | 1.4 m/s | 7 |
| 2008 | 29.0°C | 23.0°C | 17.0°C | 36.8°C | 12.3°C | 109 mm | 72% | 1.4 m/s | 5.8 |
| 2007 | 33.3°C | 25.4°C | 17.4°C | 41.9°C | 13.9°C | 33 mm | 55% | 1.4 m/s | 7.2 |
| 2006 | 32.5°C | 25.9°C | 19.3°C | 42.3°C | 16.4°C | 67 mm | 65% | 1.6 m/s | 6 |
| 2005 | 31.6°C | 24.4°C | 17.2°C | 41.6°C | 12.1°C | 81 mm | 62% | 1.4 m/s | 6.7 |
| 2004 | 33.5°C | 26.1°C | 18.7°C | 42.6°C | 14.3°C | 99 mm | 57% | 1.4 m/s | 6.6 |
| 2003 | 32.5°C | 24.7°C | 16.9°C | 41.9°C | 13.8°C | 15 mm | 57% | 1.5 m/s | 6.8 |
| 2002 | 32.2°C | 24.6°C | 17.1°C | 38.5°C | 13.9°C | 45 mm | 55% | 1.5 m/s | 6.9 |
| 2001 | 34.4°C | 26.3°C | 18.3°C | 44.0°C | 13.5°C | 70 mm | 56% | 1.4 m/s | 6.6 |
| 2000 | 28.3°C | 21.8°C | 15.3°C | 40.8°C | 11.1°C | 63 mm | 65% | 1.4 m/s | 6.4 |
| 1999 | 32.4°C | 25.2°C | 18.1°C | 38.8°C | 15.0°C | 74 mm | 64% | 1.3 m/s | 6.6 |
| 1998 | 32.9°C | 25.7°C | 18.4°C | 40.6°C | 14.2°C | 96 mm | 62% | 1.3 m/s | 6.8 |
| 1997 | 28.2°C | 21.6°C | 15.0°C | 37.0°C | 10.4°C | 111 mm | 65% | 1.4 m/s | 6.3 |
| 1996 | 28.2°C | 22.5°C | 16.9°C | 38.4°C | 14.8°C | 137 mm | 75% | 1.2 m/s | 5.4 |
| 1995 | 27.4°C | 21.5°C | 15.6°C | 34.9°C | 12.1°C | 119 mm | 72% | 1.3 m/s | 5.9 |
| 1994 | 33.1°C | 25.2°C | 17.3°C | 40.7°C | 12.3°C | 54 mm | 53% | 1.5 m/s | 7.2 |
| 1993 | 32.2°C | 25.2°C | 18.2°C | 38.3°C | 13.6°C | 78 mm | 66% | 1.3 m/s | 6.1 |
| 1992 | 30.5°C | 23.3°C | 16.0°C | 39.7°C | 11.5°C | 58 mm | 65% | 1.2 m/s | 6.5 |
| 1991 | 32.4°C | 25.6°C | 18.7°C | 38.2°C | 14.8°C | 113 mm | 61% | 1.2 m/s | 6.7 |
| 1990 | 31.2°C | 23.9°C | 16.7°C | 40.2°C | 10.4°C | 94 mm | 64% | 1.4 m/s | 6 |
| 1989 ❄️ | 26.8°C | 21.2°C | 15.5°C | 35.4°C | 12.3°C | 107 mm | 71% | 1.4 m/s | 6.2 |
| 1988 | 30.2°C | 23.3°C | 16.4°C | 36.8°C | 11.8°C | 157 mm | 70% | 1.2 m/s | 7.1 |
| 1987 | 33.2°C | 25.7°C | 18.2°C | 40.4°C | 11.7°C | 103 mm | 59% | 1.2 m/s | 6.7 |
| 1986 | 29.5°C | 22.5°C | 15.4°C | 38.0°C | 11.3°C | 126 mm | 60% | 1.4 m/s | 6.9 |
| 1985 | 34.3°C | 25.3°C | 16.4°C | 40.6°C | 12.2°C | 16 mm | 47% | 1.3 m/s | 7.6 |
| 1984 | 27.4°C | 21.4°C | 15.4°C | 34.4°C | 10.7°C | 199 mm | 71% | 1.3 m/s | 5.9 |
| 1983 | 32.5°C | 24.9°C | 17.2°C | 38.2°C | 12.4°C | 53 mm | 55% | 1.3 m/s | — |
| 1982 | 32.0°C | 24.8°C | 17.6°C | 41.2°C | 13.7°C | 96 mm | 65% | 1.4 m/s | — |
| 1981 | 33.7°C | 26.0°C | 18.3°C | 40.3°C | 13.1°C | 39 mm | 60% | 1.4 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 31.5°C with lows near 17.4°C (mean 24.5°C), based on 45 years of NASA POWER data.
January averages 87 mm of rainfall in Rutherford, a relatively wet time of year. The wettest on record was 233 mm in 2016.
The hottest January reached 44°C in 2001. The coldest dipped to 10.4°C in 1990.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have fallen by about 0.6°C — but days and nights have moved in opposite directions. Overnight lows rose from 17°C to 17.6°C while daytime highs eased from 32°C to 30.2°C, narrowing the gap between day and night.
January is one of the warmer months of the year in Rutherford and a relatively wet time of year, so plan for around 31.5°C daytime highs and 17.4°C at night.
Not quite — January is the 12th coolest month in Rutherford, averaging 24.5°C.
For January in Rutherford, pack light, breathable clothing and sun protection, with typical highs of 31.5°C and lows of 17.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 63% — moderately humid.
Average wind speed in January is 1.4 m/s. The windiest January on record averaged 1.6 m/s (2006).
The wettest January on record was 2016 with 233 mm. On average, January sees 87 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 Rutherford 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.
