January is one of the cooler months of the year in Collierville, with average highs near 8.4°C and lows around -1.5°C (mean 3.5°C). It is about average for rainfall, averaging 108 mm of rainfall and 85% relative humidity across the period.
January is one of the cooler months of the year in Collierville. Across 45 years of records, the warmest Januarys in Collierville were 2006 and 2017 — when the month averaged 7.7°C — while the coldest was 1985 at -1.7°C. Typical January days reach 8.4°C with nights near -1.5°C. The long-term trend is warming, about 0.4°C per decade.
January is about average for rainfall in Collierville, averaging 108 mm of rainfall. The wettest January on record was 1999 with 233 mm, while the driest was 1986 at 14 mm.
Relative humidity in Collierville during January averages 85%. The most humid January was 1983 at 91%, and the least humid was 1986 at 77%.
January receives about 2.4 kWh/m²/day of solar energy in Collierville. The sunniest January was 1986 at 2.9 kWh/m²/day, and the cloudiest were 1994, 1999 and 2020 at 2.
Average wind speed in Collierville during January is 2 m/s. The windiest January was 1982 at 2.5 m/s, while the calmest were 1984 and 2011 at 1.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 1.9°C | 4.1°C | 4.1°C | 3.5°C | 4.0°C | +2.1°C |
| Avg High | 6.7°C | 8.9°C | 9.0°C | 8.6°C | 9.1°C | +2.4°C |
| Avg Low | -3.0°C | -0.8°C | -0.8°C | -1.6°C | -1.2°C | +1.8°C |
| Avg Rain | 88 mm | 126 mm | 105 mm | 96 mm | 136 mm | +49 mm |
January temperatures in Collierville have risen by about 2.8°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -21.5°C (2024) to a record high of 24.4°C (2022).
Rainfall in January is about average for rainfall, averaging 108 mm, with a wettest year of 233 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.5°C per decade while lows rose 0.3°C per decade, widening the gap between day and night.
A quieter season to visit Collierville
If your dates are flexible, the more temperate months of September and May tend to be the most comfortable for visiting Collierville. That said, January — with days averaging 8.4°C and nights around -1.5°C (mean 3.5°C) and higher rainfall (108 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 | 6.9°C | 1.9°C | -3.2°C | 18.0°C | -12.8°C | 87 mm | 82% | 1.8 m/s | 2.8 |
| 2024 | 6.4°C | 1.0°C | -4.3°C | 17.6°C | -21.5°C | 178 mm | 85% | 2 m/s | 2.2 |
| 2023 | 12.5°C | 7.5°C | 2.5°C | 21.3°C | -4.9°C | 165 mm | 87% | 2 m/s | 2.2 |
| 2022 | 8.0°C | 2.2°C | -3.7°C | 24.4°C | -10.2°C | 126 mm | 81% | 2.2 m/s | 2.8 |
| 2021 | 9.7°C | 4.7°C | -0.3°C | 22.1°C | -5.0°C | 68 mm | 85% | 1.9 m/s | 2.3 |
| 2020 | 11.1°C | 6.6°C | 2.1°C | 21.4°C | -6.1°C | 194 mm | 90% | 1.9 m/s | 2 |
| 2019 | 9.0°C | 4.3°C | -0.5°C | 18.0°C | -6.0°C | 118 mm | 87% | 2 m/s | 2.2 |
| 2018 | 6.7°C | 1.3°C | -4.1°C | 19.1°C | -14.9°C | 91 mm | 82% | 2.1 m/s | 2.7 |
| 2017 | 12.5°C | 7.7°C | 3.0°C | 21.7°C | -11.3°C | 97 mm | 85% | 2 m/s | 2.1 |
| 2016 | 7.9°C | 3.1°C | -1.7°C | 19.4°C | -6.9°C | 61 mm | 85% | 2 m/s | 2.7 |
| 2015 | 8.5°C | 3.3°C | -1.9°C | 18.3°C | -13.7°C | 47 mm | 80% | 1.9 m/s | 2.5 |
| 2014 | 5.7°C | 0.1°C | -5.6°C | 15.4°C | -14.8°C | 53 mm | 78% | 2.2 m/s | 2.8 |
| 2013 | 10.6°C | 5.3°C | 0.1°C | 22.9°C | -5.1°C | 210 mm | 86% | 2 m/s | 2.3 |
| 2012 | 12.5°C | 6.7°C | 0.9°C | 18.9°C | -6.3°C | 88 mm | 85% | 2.1 m/s | 2.6 |
| 2011 | 7.0°C | 2.1°C | -2.7°C | 18.3°C | -10.8°C | 67 mm | 83% | 1.6 m/s | 2.3 |
| 2010 | 5.1°C | 0.8°C | -3.5°C | 17.6°C | -11.8°C | 126 mm | 87% | 2 m/s | 2.6 |
| 2009 | 7.6°C | 2.5°C | -2.5°C | 19.5°C | -13.0°C | 75 mm | 84% | 2 m/s | 2.5 |
| 2008 | 7.8°C | 2.8°C | -2.2°C | 20.5°C | -7.9°C | 110 mm | 82% | 2 m/s | 2.4 |
| 2007 | 9.2°C | 4.7°C | 0.1°C | 18.6°C | -7.1°C | 117 mm | 86% | 1.8 m/s | 2.2 |
| 2006 🔥 | 13.4°C | 7.7°C | 2.0°C | 19.3°C | -3.7°C | 207 mm | 82% | 2.3 m/s | 2.5 |
| 2005 | 10.1°C | 5.9°C | 1.6°C | 20.4°C | -7.9°C | 112 mm | 89% | 2.1 m/s | 2.2 |
| 2004 | 9.2°C | 4.1°C | -0.9°C | 22.5°C | -7.3°C | 90 mm | 82% | 2 m/s | 2.7 |
| 2003 | 5.4°C | 0.8°C | -3.8°C | 15.9°C | -14.2°C | 29 mm | 86% | 1.9 m/s | 2.5 |
| 2002 | 10.5°C | 5.7°C | 1.0°C | 22.7°C | -8.7°C | 163 mm | 87% | 2 m/s | 2.6 |
| 2001 | 6.6°C | 2.0°C | -2.6°C | 16.9°C | -10.9°C | 92 mm | 86% | 1.7 m/s | 2.4 |
| 2000 | 9.9°C | 4.7°C | -0.5°C | 21.9°C | -6.2°C | 58 mm | 80% | 2 m/s | 2.2 |
| 1999 🌧️ | 10.9°C | 5.9°C | 0.8°C | 20.9°C | -13.6°C | 233 mm | 87% | 2.4 m/s | 2 |
| 1998 | 10.9°C | 6.2°C | 1.5°C | 19.9°C | -4.2°C | 159 mm | 90% | 1.7 m/s | 2.1 |
| 1997 | 6.9°C | 2.1°C | -2.8°C | 20.9°C | -15.4°C | 128 mm | 89% | 2.3 m/s | 2.3 |
| 1996 | 7.5°C | 2.7°C | -2.1°C | 19.4°C | -12.3°C | 115 mm | 86% | 2.4 m/s | 2.1 |
| 1995 | 9.1°C | 4.4°C | -0.3°C | 20.5°C | -7.0°C | 117 mm | 86% | 2.1 m/s | 2.2 |
| 1994 | 5.7°C | 1.1°C | -3.5°C | 18.3°C | -16.9°C | 146 mm | 86% | 2 m/s | 2 |
| 1993 | 10.0°C | 4.9°C | -0.3°C | 18.2°C | -6.0°C | 107 mm | 85% | 1.9 m/s | 2.1 |
| 1992 | 8.3°C | 3.6°C | -1.1°C | 14.0°C | -9.5°C | 74 mm | 88% | 1.7 m/s | 2.5 |
| 1991 | 8.1°C | 3.6°C | -0.9°C | 15.5°C | -5.3°C | 69 mm | 90% | 1.7 m/s | 2.2 |
| 1990 | 11.8°C | 6.4°C | 1.0°C | 19.0°C | -5.3°C | 118 mm | 85% | 2.1 m/s | 2.3 |
| 1989 | 10.9°C | 6.0°C | 1.2°C | 19.3°C | -3.9°C | 214 mm | 89% | 1.8 m/s | 2.4 |
| 1988 | 5.0°C | 0.8°C | -3.5°C | 20.9°C | -12.1°C | 99 mm | 88% | 2.1 m/s | 2.5 |
| 1987 | 7.7°C | 3.1°C | -1.6°C | 17.4°C | -7.6°C | 54 mm | 88% | 1.9 m/s | 2.3 |
| 1986 | 9.4°C | 3.5°C | -2.4°C | 20.2°C | -12.3°C | 14 mm | 77% | 1.9 m/s | 2.9 |
| 1985 ❄️ | 2.9°C | -1.7°C | -6.3°C | 18.2°C | -20.0°C | 85 mm | 86% | 2.2 m/s | 2.3 |
| 1984 | 4.6°C | 0.0°C | -4.6°C | 14.8°C | -14.8°C | 52 mm | 90% | 1.6 m/s | 2.3 |
| 1983 | 6.1°C | 2.1°C | -2.0°C | 13.4°C | -5.3°C | 74 mm | 91% | 1.8 m/s | — |
| 1982 | 7.0°C | 1.3°C | -4.5°C | 19.6°C | -18.8°C | 158 mm | 81% | 2.5 m/s | — |
| 1981 | 6.8°C | 1.7°C | -3.4°C | 17.2°C | -13.4°C | 39 mm | 78% | 1.7 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 8.4°C with lows near -1.5°C (mean 3.5°C), based on 45 years of NASA POWER data.
January averages 108 mm of rainfall in Collierville, about average for rainfall. The wettest on record was 233 mm in 1999.
The hottest January reached 24.4°C in 2022. The coldest dipped to -21.5°C in 2024.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 2.8°C. Daytime highs moved from 5.5°C to 8.7°C and overnight lows from -4.2°C to -1.8°C over the same span.
January is one of the cooler months of the year in Collierville and about average for rainfall, so plan for around 8.4°C daytime highs and -1.5°C at night.
Yes — January is the coldest month of the year in Collierville, averaging 3.5°C.
For January in Collierville, pack warm layers and a jacket for chilly mornings, with typical highs of 8.4°C and lows of -1.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 85% — quite humid.
Average wind speed in January is 2 m/s. The windiest January on record averaged 2.5 m/s (1982).
The wettest January on record was 1999 with 233 mm. On average, January sees 108 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 Collierville 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.
