February is one of the cooler months of the year in Decatur, with average highs near 13.7°C and lows around 1.9°C (mean 7.8°C). It is a relatively wet time of year, averaging 120 mm of rainfall and 83% relative humidity across the period.
February is one of the cooler months of the year in Decatur. Across 45 years of records, the warmest February in Decatur was 2018 — when the month averaged 13°C — while the coldest was 2010 at 3.2°C. Typical February days reach 13.7°C with nights near 1.9°C. The long-term trend is warming, about 0.6°C per decade.
February is a relatively wet time of year in Decatur, averaging 120 mm of rainfall. The wettest February on record was 2020 with 274 mm, while the driest was 2000 at 38 mm.
Relative humidity in Decatur during February averages 83%. The most humid February was 1998 at 88%, and the least humid was 2002 at 77%.
February receives about 3.3 kWh/m²/day of solar energy in Decatur. The sunniest February was 2002 at 4.1 kWh/m²/day, and the cloudiest was 2004 at 2.6.
Average wind speed in Decatur during February is 1.5 m/s. The windiest February was 1998 at 1.9 m/s, while the calmest were 2006, 2012 and 2017, among others at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 6.8°C | 7.8°C | 7.4°C | 8.1°C | 9.5°C | +2.7°C |
| Avg High | 12.5°C | 13.4°C | 13.6°C | 14.0°C | 15.6°C | +3.1°C |
| Avg Low | 1.1°C | 2.2°C | 1.2°C | 2.3°C | 3.5°C | +2.4°C |
| Avg Rain | 129 mm | 134 mm | 98 mm | 114 mm | 130 mm | +1 mm |
February temperatures in Decatur have risen by about 3°C between 1981–1985 and 2021–2025.
February has ranged from a record low of -15.4°C (1996) to a record high of 25.7°C (2018).
Rainfall in February is a relatively wet time of year, averaging 120 mm, with a wettest year of 274 mm.
A quieter season to visit Decatur
If your dates are flexible, the more temperate months of May and September tend to be the most comfortable for visiting Decatur. That said, February — with days averaging 13.7°C and nights around 1.9°C (mean 7.8°C) and higher rainfall (120 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 | 16.8°C | 10.2°C | 3.7°C | 24.2°C | -6.7°C | 104 mm | 80% | 1.5 m/s | 3.5 |
| 2024 | 15.7°C | 9.4°C | 3.0°C | 24.2°C | -1.7°C | 113 mm | 79% | 1.5 m/s | 3.5 |
| 2023 | 17.9°C | 12.2°C | 6.6°C | 25.3°C | -4.3°C | 87 mm | 85% | 1.5 m/s | 3.1 |
| 2022 | 15.9°C | 9.1°C | 2.3°C | 23.6°C | -4.5°C | 120 mm | 80% | 1.6 m/s | 3.6 |
| 2021 | 13.4°C | 7.7°C | 2.1°C | 24.1°C | -5.9°C | 81 mm | 83% | 1.6 m/s | 3.1 |
| 2020 🌧️ | 13.9°C | 8.7°C | 3.5°C | 22.6°C | -3.0°C | 274 mm | 87% | 1.5 m/s | 2.7 |
| 2019 | 16.8°C | 11.4°C | 6.0°C | 23.3°C | -2.0°C | 110 mm | 86% | 1.5 m/s | 2.7 |
| 2018 🔥 | 18.8°C | 13.0°C | 7.3°C | 25.7°C | -5.0°C | 134 mm | 86% | 1.5 m/s | 2.7 |
| 2017 | 17.8°C | 11.3°C | 4.8°C | 23.9°C | -4.1°C | 67 mm | 83% | 1.4 m/s | 3.4 |
| 2016 | 13.2°C | 7.6°C | 2.0°C | 21.6°C | -5.2°C | 124 mm | 84% | 1.7 m/s | 3.7 |
| 2015 | 9.6°C | 3.4°C | -2.8°C | 17.7°C | -9.3°C | 112 mm | 77% | 1.7 m/s | 3.4 |
| 2014 | 12.7°C | 6.8°C | 0.8°C | 22.2°C | -6.2°C | 108 mm | 84% | 1.5 m/s | 3.5 |
| 2013 | 12.6°C | 6.7°C | 0.9°C | 18.6°C | -5.6°C | 209 mm | 83% | 1.6 m/s | 3.3 |
| 2012 | 15.3°C | 9.6°C | 3.8°C | 23.1°C | -6.8°C | 64 mm | 83% | 1.4 m/s | 3.2 |
| 2011 | 15.1°C | 8.4°C | 1.8°C | 24.1°C | -4.6°C | 112 mm | 82% | 1.6 m/s | 3.6 |
| 2010 ❄️ | 8.2°C | 3.2°C | -1.8°C | 16.7°C | -5.1°C | 102 mm | 84% | 1.7 m/s | 3.6 |
| 2009 | 13.9°C | 7.2°C | 0.4°C | 20.2°C | -7.3°C | 102 mm | 79% | 1.6 m/s | 3.8 |
| 2008 | 15.3°C | 8.2°C | 1.1°C | 22.5°C | -6.1°C | 114 mm | 81% | 1.6 m/s | 3.5 |
| 2007 | 12.3°C | 6.0°C | -0.3°C | 20.0°C | -5.7°C | 76 mm | 78% | 1.6 m/s | 3.8 |
| 2006 | 12.0°C | 6.3°C | 0.5°C | 19.8°C | -5.0°C | 110 mm | 81% | 1.4 m/s | 3.1 |
| 2005 | 14.1°C | 8.5°C | 3.0°C | 22.0°C | -4.8°C | 136 mm | 85% | 1.4 m/s | 3 |
| 2004 | 11.2°C | 5.8°C | 0.4°C | 18.4°C | -5.3°C | 116 mm | 84% | 1.5 m/s | 2.6 |
| 2003 | 13.0°C | 7.2°C | 1.5°C | 23.3°C | -3.8°C | 134 mm | 85% | 1.5 m/s | 3.1 |
| 2002 | 12.6°C | 6.3°C | 0.0°C | 19.1°C | -6.3°C | 65 mm | 77% | 1.5 m/s | 4.1 |
| 2001 | 15.7°C | 9.6°C | 3.6°C | 23.1°C | -4.1°C | 85 mm | 83% | 1.4 m/s | 3.2 |
| 2000 | 16.0°C | 9.0°C | 1.9°C | 22.7°C | -5.6°C | 38 mm | 80% | 1.4 m/s | 3.9 |
| 1999 | 15.2°C | 9.1°C | 2.9°C | 22.9°C | -6.2°C | 64 mm | 80% | 1.4 m/s | 3.7 |
| 1998 | 12.3°C | 7.4°C | 2.6°C | 21.1°C | -3.1°C | 200 mm | 88% | 1.9 m/s | 3.4 |
| 1997 | 14.4°C | 8.8°C | 3.3°C | 23.5°C | -4.2°C | 194 mm | 87% | 1.4 m/s | 2.9 |
| 1996 | 11.7°C | 6.0°C | 0.4°C | 23.1°C | -15.4°C | 95 mm | 84% | 1.6 m/s | 3.5 |
| 1995 | 11.9°C | 6.3°C | 0.7°C | 23.6°C | -7.3°C | 184 mm | 81% | 1.6 m/s | 3.5 |
| 1994 | 14.3°C | 8.3°C | 2.3°C | 23.0°C | -5.9°C | 104 mm | 82% | 1.5 m/s | 3.2 |
| 1993 | 10.2°C | 5.0°C | -0.3°C | 18.2°C | -6.4°C | 110 mm | 85% | 1.6 m/s | 3.2 |
| 1992 | 14.6°C | 8.8°C | 3.1°C | 20.9°C | -5.8°C | 128 mm | 82% | 1.4 m/s | 3.4 |
| 1991 | 13.7°C | 8.0°C | 2.3°C | 19.6°C | -8.2°C | 81 mm | 82% | 1.6 m/s | 3.4 |
| 1990 | 15.6°C | 9.9°C | 4.3°C | 21.0°C | -4.3°C | 177 mm | 87% | 1.6 m/s | 3.4 |
| 1989 | 13.1°C | 7.4°C | 1.7°C | 24.1°C | -6.7°C | 93 mm | 82% | 1.7 m/s | 2.8 |
| 1988 | 11.8°C | 5.6°C | -0.7°C | 22.2°C | -7.3°C | 74 mm | 77% | 1.5 m/s | 3.5 |
| 1987 | 10.8°C | 6.1°C | 1.3°C | 17.9°C | -5.1°C | 165 mm | 86% | 1.6 m/s | 2.7 |
| 1986 | 14.9°C | 8.7°C | 2.5°C | 23.9°C | -6.6°C | 64 mm | 82% | 1.5 m/s | 3.4 |
| 1985 | 11.5°C | 5.9°C | 0.2°C | 22.1°C | -7.8°C | 147 mm | 82% | 1.5 m/s | 3.2 |
| 1984 | 13.1°C | 7.6°C | 2.0°C | 19.9°C | -6.1°C | 120 mm | 84% | 1.6 m/s | 3.7 |
| 1983 | 11.0°C | 5.8°C | 0.6°C | 17.1°C | -5.8°C | 142 mm | 86% | 1.6 m/s | — |
| 1982 | 12.8°C | 7.4°C | 2.0°C | 20.7°C | -4.6°C | 167 mm | 86% | 1.5 m/s | — |
| 1981 | 13.2°C | 6.7°C | 0.2°C | 21.6°C | -9.0°C | 189 mm | 79% | 1.7 m/s | — |
Actual recorded February data for each year, 1981–2025 — sourced from NASA POWER.
The average high in February is around 13.7°C with lows near 1.9°C (mean 7.8°C), based on 45 years of NASA POWER data.
February averages 120 mm of rainfall in Decatur, a relatively wet time of year. The wettest on record was 274 mm in 2020.
The hottest February reached 25.7°C in 2018. The coldest dipped to -15.4°C in 1996.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average February temperatures have risen by about 3°C. Daytime highs moved from 12.3°C to 15.9°C and overnight lows from 1°C to 3.5°C over the same span.
February is one of the cooler months of the year in Decatur and a relatively wet time of year, so plan for around 13.7°C daytime highs and 1.9°C at night.
Not quite — February is the 3rd coolest month in Decatur, averaging 7.8°C.
For February in Decatur, pack warm layers and a jacket for chilly mornings, with typical highs of 13.7°C and lows of 1.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in February averages 83% — quite humid.
Average wind speed in February is 1.5 m/s. The windiest February on record averaged 1.9 m/s (1998).
The wettest February on record was 2020 with 274 mm. On average, February sees 120 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 Decatur behaves each February, 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 February specifically, along with year-by-year records and how the month has changed over the decades.
