January is one of the cooler months of the year in Leander, with average highs near 15.6°C and lows around 2.8°C (mean 9.2°C). It is one of the drier months, averaging 48 mm of rainfall and 71% relative humidity across the period.
January is one of the cooler months of the year in Leander. Across 45 years of records, the warmest January in Leander was 2006 — when the month averaged 13.8°C — while the coldest was 1985 at 4.5°C. Typical January days reach 15.6°C with nights near 2.8°C. The long-term trend is warming, about 0.3°C per decade.
January is one of the drier months in Leander, averaging 48 mm of rainfall. The wettest January on record was 2024 with 120 mm, while the driest was 2014 at 2 mm.
Relative humidity in Leander during January averages 71%. The most humid January was 1992 at 82%, and the least humid was 2006 at 48%.
January receives about 3 kWh/m²/day of solar energy in Leander. The sunniest Januarys were 2009, 2014 and 2016, among others at 3.5 kWh/m²/day, and the cloudiest was 1993 at 2.2.
Average wind speed in Leander during January is 3 m/s. The windiest January was 1996 at 3.7 m/s, while the calmest was 1981 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.0°C | 9.3°C | 10.1°C | 9.0°C | 9.6°C | +1.6°C |
| Avg High | 14.4°C | 15.7°C | 16.6°C | 15.4°C | 16.1°C | +1.7°C |
| Avg Low | 1.7°C | 3.0°C | 3.7°C | 2.5°C | 3.2°C | +1.5°C |
| Avg Rain | 36 mm | 49 mm | 45 mm | 58 mm | 56 mm | +21 mm |
January temperatures in Leander have risen by about 1.7°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -10.5°C (1985) to a record high of 31°C (2000).
Rainfall in January is one of the drier months, averaging 48 mm, with a wettest year of 120 mm.
A quieter season to visit Leander
If your dates are flexible, the more temperate months of October and April tend to be the most comfortable for visiting Leander. That said, January — with days averaging 15.6°C and nights around 2.8°C (mean 9.2°C) and moderate rainfall (48 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 | 13.6°C | 7.3°C | 1.0°C | 22.8°C | -6.6°C | 50 mm | 65% | 3 m/s | 2.9 |
| 2024 🌧️ | 13.7°C | 7.6°C | 1.6°C | 22.0°C | -8.0°C | 120 mm | 69% | 3 m/s | 3.1 |
| 2023 | 18.3°C | 11.8°C | 5.2°C | 27.3°C | -2.1°C | 31 mm | 68% | 3 m/s | 3.1 |
| 2022 | 15.7°C | 8.7°C | 1.6°C | 25.7°C | -5.0°C | 46 mm | 59% | 2.9 m/s | 3.4 |
| 2021 | 16.8°C | 10.0°C | 3.3°C | 24.5°C | -3.6°C | 35 mm | 71% | 2.9 m/s | 3.2 |
| 2020 | 18.6°C | 12.4°C | 6.2°C | 25.9°C | -0.1°C | 57 mm | 72% | 2.8 m/s | 2.9 |
| 2019 | 14.6°C | 8.8°C | 3.1°C | 21.7°C | -3.3°C | 78 mm | 78% | 2.9 m/s | 3 |
| 2018 | 14.8°C | 7.9°C | 1.0°C | 22.5°C | -8.1°C | 8 mm | 63% | 2.9 m/s | 3.3 |
| 2017 | 17.8°C | 11.7°C | 5.5°C | 24.8°C | -7.5°C | 80 mm | 70% | 3.3 m/s | 3.2 |
| 2016 | 15.2°C | 8.9°C | 2.5°C | 25.7°C | -3.0°C | 15 mm | 76% | 2.6 m/s | 3.5 |
| 2015 | 13.5°C | 7.7°C | 1.9°C | 25.0°C | -6.4°C | 109 mm | 74% | 2.8 m/s | 2.9 |
| 2014 | 15.1°C | 7.9°C | 0.6°C | 24.8°C | -7.1°C | 2 mm | 62% | 3.4 m/s | 3.5 |
| 2013 | 16.8°C | 10.3°C | 3.8°C | 26.9°C | -4.3°C | 75 mm | 72% | 3 m/s | 3 |
| 2012 | 18.1°C | 11.0°C | 3.9°C | 24.6°C | -1.7°C | 64 mm | 70% | 3.2 m/s | 3.3 |
| 2011 | 15.0°C | 8.1°C | 1.3°C | 25.6°C | -5.8°C | 51 mm | 68% | 2.5 m/s | 3 |
| 2010 | 12.9°C | 7.2°C | 1.5°C | 22.1°C | -6.1°C | 98 mm | 79% | 2.9 m/s | 3 |
| 2009 | 18.8°C | 11.0°C | 3.3°C | 27.9°C | -3.3°C | 12 mm | 53% | 3.2 m/s | 3.5 |
| 2008 | 15.5°C | 9.0°C | 2.5°C | 25.1°C | -5.1°C | 11 mm | 64% | 3.1 m/s | 2.9 |
| 2007 | 12.3°C | 6.8°C | 1.3°C | 24.7°C | -4.0°C | 114 mm | 78% | 2.8 m/s | 2.5 |
| 2006 🔥 | 21.2°C | 13.8°C | 6.3°C | 30.1°C | 2.0°C | 29 mm | 48% | 3.6 m/s | 3.5 |
| 2005 | 16.6°C | 11.1°C | 5.5°C | 24.3°C | -4.2°C | 54 mm | 79% | 3.1 m/s | 2.6 |
| 2004 | 17.1°C | 11.1°C | 5.2°C | 24.1°C | -3.8°C | 73 mm | 71% | 2.9 m/s | 2.6 |
| 2003 | 14.5°C | 8.2°C | 1.9°C | 26.6°C | -5.3°C | 24 mm | 75% | 2.8 m/s | 3.1 |
| 2002 | 17.4°C | 10.6°C | 3.9°C | 25.4°C | -4.6°C | 23 mm | 72% | 3.2 m/s | 3.1 |
| 2001 | 13.4°C | 7.8°C | 2.1°C | 20.9°C | -4.3°C | 72 mm | 79% | 2.8 m/s | 2.8 |
| 2000 | 18.8°C | 11.7°C | 4.7°C | 31.0°C | -5.0°C | 36 mm | 66% | 3.1 m/s | 3.1 |
| 1999 | 17.7°C | 10.7°C | 3.6°C | 25.2°C | -5.4°C | 8 mm | 74% | 3.4 m/s | 3.4 |
| 1998 | 18.0°C | 11.6°C | 5.2°C | 22.9°C | -0.8°C | 78 mm | 80% | 3 m/s | 2.9 |
| 1997 | 13.5°C | 7.4°C | 1.4°C | 25.4°C | -6.3°C | 32 mm | 73% | 3.1 m/s | 2.9 |
| 1996 | 16.8°C | 8.8°C | 0.8°C | 25.6°C | -6.8°C | 5 mm | 59% | 3.7 m/s | 3.5 |
| 1995 | 16.1°C | 9.6°C | 3.1°C | 23.8°C | -5.2°C | 18 mm | 74% | 2.9 m/s | 3.2 |
| 1994 | 15.5°C | 9.4°C | 3.4°C | 25.4°C | -4.9°C | 40 mm | 72% | 3.1 m/s | 2.8 |
| 1993 | 14.2°C | 8.1°C | 2.0°C | 23.6°C | -3.1°C | 52 mm | 79% | 2.5 m/s | 2.2 |
| 1992 | 13.1°C | 8.2°C | 3.2°C | 19.8°C | -5.8°C | 104 mm | 82% | 2.4 m/s | 2.7 |
| 1991 | 13.1°C | 7.3°C | 1.6°C | 21.8°C | -5.5°C | 118 mm | 79% | 2.8 m/s | 2.4 |
| 1990 | 19.1°C | 12.2°C | 5.3°C | 27.0°C | -1.5°C | 35 mm | 63% | 3.2 m/s | 2.8 |
| 1989 | 17.5°C | 11.2°C | 5.0°C | 27.8°C | -3.0°C | 107 mm | 72% | 3 m/s | 2.4 |
| 1988 | 13.0°C | 6.8°C | 0.6°C | 23.0°C | -6.1°C | 8 mm | 70% | 3.1 m/s | 3 |
| 1987 | 13.7°C | 7.7°C | 1.7°C | 22.1°C | -4.3°C | 23 mm | 79% | 3 m/s | 3.2 |
| 1986 | 16.5°C | 9.6°C | 2.7°C | 23.9°C | -2.8°C | 16 mm | 72% | 2.8 m/s | 3.4 |
| 1985 ❄️ | 10.7°C | 4.5°C | -1.6°C | 22.1°C | -10.5°C | 38 mm | 75% | 3 m/s | 2.9 |
| 1984 | 11.8°C | 5.9°C | 0.0°C | 23.3°C | -8.4°C | 47 mm | 71% | 2.6 m/s | 2.8 |
| 1983 | 14.6°C | 8.2°C | 1.9°C | 22.8°C | -3.1°C | 31 mm | 76% | 2.7 m/s | — |
| 1982 | 16.7°C | 9.3°C | 1.8°C | 25.7°C | -10.2°C | 22 mm | 64% | 3.6 m/s | — |
| 1981 | 15.2°C | 9.0°C | 2.8°C | 23.8°C | -2.7°C | 30 mm | 70% | 2.3 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 15.6°C with lows near 2.8°C (mean 9.2°C), based on 45 years of NASA POWER data.
January averages 48 mm of rainfall in Leander, one of the drier months. The wettest on record was 120 mm in 2024.
The hottest January reached 31°C in 2000. The coldest dipped to -10.5°C in 1985.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 1.7°C. Daytime highs moved from 13.8°C to 15.6°C and overnight lows from 1°C to 2.5°C over the same span.
January is one of the cooler months of the year in Leander and one of the drier months, so plan for around 15.6°C daytime highs and 2.8°C at night.
Yes — January is the coldest month of the year in Leander, averaging 9.2°C.
For January in Leander, pack warm layers and a jacket for chilly mornings, with typical highs of 15.6°C and lows of 2.8°C.
Relative humidity in January averages 71% — moderately humid.
Average wind speed in January is 3 m/s. The windiest January on record averaged 3.7 m/s (1996).
The wettest January on record was 2024 with 120 mm. On average, January sees 48 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 Leander 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.
