January is one of the cooler months of the year in Conroe, with average highs near 15.2°C and lows around 4°C (mean 9.6°C). It is about average for rainfall, averaging 100 mm of rainfall and 82% relative humidity across the period.
January is one of the cooler months of the year in Conroe. Across 45 years of records, the warmest January in Conroe was 2006 — when the month averaged 13°C — while the coldest was 1985 at 5.7°C. Typical January days reach 15.2°C with nights near 4°C. The long-term trend is warming, about 0.3°C per decade.
January is about average for rainfall in Conroe, averaging 100 mm of rainfall. The wettest January on record was 1991 with 271 mm, while the driest was 2009 at 19 mm.
Relative humidity in Conroe during January averages 82%. The most humid January was 1998 at 89%, and the least humid was 2022 at 70%.
January receives about 2.8 kWh/m²/day of solar energy in Conroe. The sunniest January was 2022 at 3.4 kWh/m²/day, and the cloudiest was 1993 at 2.
Average wind speed in Conroe during January is 1 m/s. The windiest January was 1996 at 1.2 m/s, while the calmest were 1981, 1992 and 2011 at 0.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.3°C | 10.0°C | 10.1°C | 9.3°C | 10.3°C | +2°C |
| Avg High | 13.9°C | 15.4°C | 15.7°C | 15.1°C | 16.1°C | +2.2°C |
| Avg Low | 2.8°C | 4.6°C | 4.6°C | 3.6°C | 4.4°C | +1.6°C |
| Avg Rain | 72 mm | 143 mm | 85 mm | 91 mm | 111 mm | +40 mm |
January temperatures in Conroe have risen by about 2.2°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -11.1°C (1982) to a record high of 27.4°C (2022).
Rainfall in January is about average for rainfall, averaging 100 mm, with a wettest year of 271 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.4°C per decade while lows rose 0.2°C per decade, widening the gap between day and night.
A quieter season to visit Conroe
If your dates are flexible, the more temperate months of October and April tend to be the most comfortable for visiting Conroe. That said, January — with days averaging 15.2°C and nights around 4°C (mean 9.6°C) and higher rainfall (100 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 | 13.5°C | 7.8°C | 2.0°C | 23.8°C | -6.4°C | 76 mm | 79% | 0.9 m/s | 2.6 |
| 2024 | 14.6°C | 8.8°C | 2.9°C | 23.1°C | -7.3°C | 251 mm | 78% | 1 m/s | 2.8 |
| 2023 | 17.9°C | 12.3°C | 6.7°C | 24.5°C | -0.6°C | 130 mm | 83% | 1 m/s | 2.6 |
| 2022 | 16.3°C | 9.5°C | 2.7°C | 27.4°C | -3.9°C | 67 mm | 70% | 1 m/s | 3.4 |
| 2021 | 16.3°C | 10.6°C | 4.8°C | 24.0°C | -3.5°C | 57 mm | 81% | 0.9 m/s | 3 |
| 2020 | 18.2°C | 12.7°C | 7.1°C | 25.0°C | -0.1°C | 85 mm | 81% | 0.9 m/s | 2.4 |
| 2019 | 14.9°C | 9.4°C | 4.0°C | 22.8°C | -2.7°C | 113 mm | 85% | 0.9 m/s | 3 |
| 2018 | 13.7°C | 7.4°C | 1.0°C | 22.7°C | -8.0°C | 56 mm | 77% | 0.9 m/s | 3.2 |
| 2017 | 18.2°C | 12.8°C | 7.4°C | 25.2°C | -7.5°C | 130 mm | 81% | 1 m/s | 2.9 |
| 2016 | 15.2°C | 9.4°C | 3.6°C | 23.7°C | -2.6°C | 52 mm | 83% | 0.9 m/s | 3.3 |
| 2015 | 13.2°C | 8.0°C | 2.8°C | 23.3°C | -4.4°C | 127 mm | 83% | 0.9 m/s | 2.9 |
| 2014 | 13.5°C | 7.3°C | 1.0°C | 22.1°C | -5.8°C | 37 mm | 78% | 1.1 m/s | 3.2 |
| 2013 | 16.3°C | 11.1°C | 5.9°C | 25.8°C | -2.7°C | 112 mm | 84% | 1 m/s | 2.8 |
| 2012 | 18.3°C | 12.0°C | 5.7°C | 24.5°C | -2.4°C | 125 mm | 82% | 1 m/s | 3.1 |
| 2011 | 14.8°C | 8.4°C | 2.1°C | 23.4°C | -5.6°C | 101 mm | 76% | 0.8 m/s | 2.7 |
| 2010 | 12.9°C | 7.5°C | 2.1°C | 22.5°C | -5.6°C | 60 mm | 83% | 0.9 m/s | 2.9 |
| 2009 | 17.4°C | 10.6°C | 3.8°C | 25.5°C | -2.9°C | 19 mm | 72% | 1 m/s | 3.3 |
| 2008 | 14.4°C | 8.8°C | 3.3°C | 23.5°C | -4.2°C | 97 mm | 80% | 1 m/s | 2.9 |
| 2007 | 12.1°C | 7.6°C | 3.1°C | 23.3°C | -2.9°C | 173 mm | 87% | 0.9 m/s | 2.4 |
| 2006 🔥 | 19.4°C | 13.0°C | 6.5°C | 25.9°C | 1.3°C | 80 mm | 72% | 1 m/s | 3.3 |
| 2005 | 16.1°C | 11.2°C | 6.3°C | 23.4°C | -2.4°C | 83 mm | 87% | 0.9 m/s | 2.6 |
| 2004 | 15.8°C | 10.7°C | 5.7°C | 23.3°C | -3.6°C | 140 mm | 84% | 0.9 m/s | 2.5 |
| 2003 | 13.5°C | 8.2°C | 2.9°C | 23.3°C | -4.3°C | 34 mm | 85% | 0.9 m/s | 3 |
| 2002 | 16.8°C | 10.9°C | 5.0°C | 24.9°C | -5.6°C | 54 mm | 84% | 1 m/s | 2.9 |
| 2001 | 12.7°C | 7.9°C | 3.1°C | 21.1°C | -5.6°C | 122 mm | 87% | 0.9 m/s | 2.7 |
| 2000 | 19.0°C | 12.5°C | 6.1°C | 26.8°C | -3.5°C | 48 mm | 72% | 1 m/s | 2.9 |
| 1999 | 17.6°C | 11.7°C | 5.8°C | 24.5°C | -4.9°C | 97 mm | 86% | 1.1 m/s | 3.1 |
| 1998 | 17.7°C | 12.4°C | 7.2°C | 22.6°C | 0.5°C | 152 mm | 89% | 1 m/s | 2.8 |
| 1997 | 13.6°C | 8.5°C | 3.4°C | 26.2°C | -5.5°C | 107 mm | 83% | 1 m/s | 2.6 |
| 1996 | 15.5°C | 8.9°C | 2.2°C | 23.7°C | -6.5°C | 42 mm | 78% | 1.2 m/s | 2.9 |
| 1995 | 15.2°C | 9.9°C | 4.6°C | 23.9°C | -3.2°C | 179 mm | 85% | 1 m/s | 2.9 |
| 1994 | 15.1°C | 9.5°C | 4.0°C | 22.5°C | -5.1°C | 78 mm | 84% | 1 m/s | 2.8 |
| 1993 | 14.7°C | 9.7°C | 4.6°C | 23.4°C | -1.7°C | 155 mm | 87% | 0.9 m/s | 2 |
| 1992 | 13.7°C | 9.0°C | 4.3°C | 21.5°C | -5.4°C | 177 mm | 86% | 0.8 m/s | 2.6 |
| 1991 🌧️ | 13.4°C | 8.5°C | 3.6°C | 22.1°C | -3.2°C | 271 mm | 88% | 0.9 m/s | 2.1 |
| 1990 | 17.3°C | 11.7°C | 6.0°C | 24.3°C | -3.2°C | 171 mm | 82% | 1 m/s | 2.6 |
| 1989 | 17.5°C | 12.2°C | 6.8°C | 25.8°C | -2.8°C | 187 mm | 86% | 0.9 m/s | 2.3 |
| 1988 | 12.2°C | 6.8°C | 1.4°C | 21.8°C | -4.3°C | 38 mm | 83% | 1 m/s | 2.8 |
| 1987 | 13.7°C | 8.4°C | 3.1°C | 21.5°C | -4.0°C | 56 mm | 85% | 0.9 m/s | 2.9 |
| 1986 | 15.5°C | 9.6°C | 3.8°C | 22.5°C | -2.1°C | 25 mm | 83% | 0.9 m/s | 3.2 |
| 1985 ❄️ | 11.1°C | 5.7°C | 0.3°C | 21.8°C | -7.4°C | 77 mm | 82% | 1 m/s | 2.9 |
| 1984 | 11.3°C | 6.1°C | 0.9°C | 20.4°C | -6.8°C | 74 mm | 83% | 0.9 m/s | 2.6 |
| 1983 | 13.6°C | 8.3°C | 2.9°C | 20.5°C | -2.3°C | 61 mm | 86% | 0.9 m/s | — |
| 1982 | 15.4°C | 9.3°C | 3.3°C | 23.7°C | -11.1°C | 59 mm | 79% | 1.1 m/s | — |
| 1981 | 14.7°C | 8.7°C | 2.8°C | 22.0°C | -2.1°C | 67 mm | 76% | 0.8 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 15.2°C with lows near 4°C (mean 9.6°C), based on 45 years of NASA POWER data.
January averages 100 mm of rainfall in Conroe, about average for rainfall. The wettest on record was 271 mm in 1991.
The hottest January reached 27.4°C in 2022. The coldest dipped to -11.1°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 2.2°C. Daytime highs moved from 13.2°C to 15.7°C and overnight lows from 2°C to 3.8°C over the same span.
January is one of the cooler months of the year in Conroe and about average for rainfall, so plan for around 15.2°C daytime highs and 4°C at night.
Yes — January is the coldest month of the year in Conroe, averaging 9.6°C.
For January in Conroe, pack warm layers and a jacket for chilly mornings, with typical highs of 15.2°C and lows of 4°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 82% — quite humid.
Average wind speed in January is 1 m/s. The windiest January on record averaged 1.2 m/s (1996).
The wettest January on record was 1991 with 271 mm. On average, January sees 100 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 Conroe 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.
