February is one of the cooler months of the year in Decatur, with average highs near 4°C and lows around -6.1°C (mean -1°C). It is one of the drier months, averaging 50 mm of rainfall and 82% 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 2017 — when the month averaged 5°C — while the coldest was 2014 at -7.5°C. Typical February days reach 4°C with nights near -6.1°C. The long-term February temperature trend is broadly flat.
February is one of the drier months in Decatur, averaging 50 mm of rainfall. The wettest February on record was 2018 with 183 mm, while the driest was 1991 at 11 mm.
Relative humidity in Decatur during February averages 82%. The most humid February was 1982 at 92%, and the least humid was 2006 at 74%.
February receives about 2.7 kWh/m²/day of solar energy in Decatur. The sunniest February was 2024 at 3.4 kWh/m²/day, and the cloudiest was 2003 at 2.2.
Average wind speed in Decatur during February is 3.8 m/s. The windiest February was 1981 at 4.5 m/s, while the calmest was 1983 at 2.9 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -2.1°C | 0.2°C | -0.9°C | -1.6°C | -0.8°C | +1.3°C |
| Avg High | 2.9°C | 5.1°C | 4.1°C | 3.5°C | 4.6°C | +1.7°C |
| Avg Low | -7.0°C | -4.7°C | -5.9°C | -6.6°C | -6.3°C | +0.7°C |
| Avg Rain | 44 mm | 50 mm | 51 mm | 59 mm | 45 mm | +2 mm |
February temperatures in Decatur have risen by about 0.8°C between 1981–1985 and 2021–2025.
February has ranged from a record low of -29.6°C (1982) to a record high of 23.4°C (2024).
Rainfall in February is one of the drier months, averaging 50 mm, with a wettest year of 183 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.2°C per decade while lows rose 0°C per decade, widening the gap between day and night.
A quieter season to visit Decatur
If your dates are flexible, the more temperate months of June and August tend to be the most comfortable for visiting Decatur. That said, February — with days averaging 4°C and nights around -6.1°C (mean -1°C) and moderate rainfall (50 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 | 3.9°C | -1.2°C | -6.2°C | 19.1°C | -18.4°C | 12 mm | 76% | 3.9 m/s | 2.8 |
| 2024 | 10.0°C | 4.0°C | -2.0°C | 23.4°C | -11.7°C | 14 mm | 79% | 3.7 m/s | 3.4 |
| 2023 | 8.7°C | 2.6°C | -3.5°C | 17.9°C | -14.4°C | 67 mm | 75% | 4 m/s | 3 |
| 2022 | 3.1°C | -2.8°C | -8.8°C | 17.4°C | -22.2°C | 83 mm | 83% | 4.2 m/s | 2.8 |
| 2021 | -1.8°C | -6.9°C | -12.0°C | 14.0°C | -26.6°C | 43 mm | 88% | 3.8 m/s | 2.7 |
| 2020 | 4.0°C | -0.6°C | -5.1°C | 17.2°C | -18.5°C | 53 mm | 84% | 3.7 m/s | 2.4 |
| 2019 | 3.4°C | -1.6°C | -6.5°C | 15.9°C | -13.5°C | 50 mm | 85% | 4.1 m/s | 2.4 |
| 2018 🌧️ | 5.5°C | 0.1°C | -5.3°C | 19.6°C | -15.7°C | 183 mm | 80% | 4.1 m/s | 2.3 |
| 2017 🔥 | 10.8°C | 5.0°C | -0.7°C | 20.5°C | -10.1°C | 17 mm | 78% | 3.9 m/s | 3 |
| 2016 | 5.1°C | 0.2°C | -4.7°C | 18.8°C | -16.5°C | 30 mm | 82% | 4 m/s | 2.8 |
| 2015 | -1.6°C | -6.7°C | -11.9°C | 9.9°C | -19.8°C | 30 mm | 78% | 3.8 m/s | 2.8 |
| 2014 ❄️ | -2.1°C | -7.5°C | -13.0°C | 16.6°C | -25.0°C | 62 mm | 85% | 3.5 m/s | 2.7 |
| 2013 | 3.2°C | -1.3°C | -5.7°C | 11.2°C | -15.4°C | 61 mm | 80% | 4.1 m/s | 2.8 |
| 2012 | 6.8°C | 1.7°C | -3.5°C | 16.4°C | -11.3°C | 32 mm | 79% | 3.8 m/s | 2.8 |
| 2011 | 3.4°C | -1.9°C | -7.1°C | 18.0°C | -24.2°C | 75 mm | 88% | 3.9 m/s | 2.6 |
| 2010 | 0.2°C | -3.7°C | -7.5°C | 5.5°C | -13.5°C | 49 mm | 91% | 3.2 m/s | 2.9 |
| 2009 | 5.3°C | 0.2°C | -5.0°C | 17.9°C | -16.3°C | 55 mm | 82% | 4.4 m/s | 2.9 |
| 2008 | 1.2°C | -3.3°C | -7.8°C | 13.3°C | -15.1°C | 113 mm | 85% | 4 m/s | 2.4 |
| 2007 | -1.4°C | -6.2°C | -11.0°C | 9.8°C | -21.6°C | 58 mm | 85% | 4 m/s | 2.6 |
| 2006 | 4.9°C | -0.4°C | -5.8°C | 18.2°C | -15.8°C | 12 mm | 74% | 3.7 m/s | 3.1 |
| 2005 | 6.0°C | 1.6°C | -2.7°C | 17.9°C | -7.8°C | 46 mm | 88% | 3.3 m/s | 2.5 |
| 2004 | 4.4°C | -1.0°C | -6.3°C | 16.3°C | -14.5°C | 13 mm | 85% | 3.8 m/s | 2.9 |
| 2003 | 1.5°C | -3.3°C | -8.2°C | 13.7°C | -17.8°C | 35 mm | 76% | 3.7 m/s | 2.2 |
| 2002 | 5.5°C | 0.3°C | -4.8°C | 15.3°C | -14.0°C | 50 mm | 81% | 4.3 m/s | 3.1 |
| 2001 | 4.7°C | -0.4°C | -5.5°C | 16.6°C | -16.7°C | 83 mm | 80% | 3.9 m/s | 2.6 |
| 2000 | 8.7°C | 3.2°C | -2.2°C | 22.5°C | -11.2°C | 42 mm | 79% | 4.1 m/s | 2.6 |
| 1999 | 7.0°C | 2.1°C | -2.8°C | 21.1°C | -7.3°C | 57 mm | 80% | 4.2 m/s | 2.5 |
| 1998 | 8.7°C | 4.2°C | -0.3°C | 16.2°C | -4.6°C | 67 mm | 84% | 3.3 m/s | 2.3 |
| 1997 | 5.5°C | 0.8°C | -4.0°C | 16.4°C | -9.4°C | 89 mm | 82% | 3.5 m/s | 2.6 |
| 1996 | 5.0°C | -0.6°C | -6.2°C | 21.4°C | -26.9°C | 22 mm | 75% | 4.3 m/s | 2.5 |
| 1995 | 3.1°C | -2.2°C | -7.5°C | 15.3°C | -19.8°C | 20 mm | 81% | 3.6 m/s | 2.8 |
| 1994 | 2.1°C | -2.8°C | -7.8°C | 16.7°C | -16.3°C | 28 mm | 86% | 4 m/s | 2.5 |
| 1993 | 1.0°C | -3.2°C | -7.4°C | 11.7°C | -17.7°C | 42 mm | 88% | 3.4 m/s | 2.8 |
| 1992 | 6.3°C | 1.8°C | -2.7°C | 14.0°C | -11.5°C | 33 mm | 86% | 3.5 m/s | 2.4 |
| 1991 | 5.4°C | 0.8°C | -3.9°C | 15.6°C | -15.1°C | 11 mm | 85% | 3.8 m/s | 2.6 |
| 1990 | 6.5°C | 1.1°C | -4.2°C | 16.0°C | -13.5°C | 128 mm | 79% | 4 m/s | 2.6 |
| 1989 | -0.9°C | -5.2°C | -9.5°C | 9.8°C | -20.7°C | 33 mm | 80% | 3.6 m/s | 2.6 |
| 1988 | 0.8°C | -4.3°C | -9.3°C | 12.3°C | -19.8°C | 27 mm | 81% | 4.2 m/s | 2.9 |
| 1987 | 6.1°C | 1.4°C | -3.4°C | 11.3°C | -8.2°C | 19 mm | 82% | 3.5 m/s | 2.6 |
| 1986 | 1.9°C | -2.0°C | -5.9°C | 11.3°C | -17.0°C | 55 mm | 88% | 3.3 m/s | 2.3 |
| 1985 | 0.2°C | -5.0°C | -10.2°C | 17.5°C | -24.6°C | 87 mm | 89% | 3.8 m/s | 3.3 |
| 1984 | 6.5°C | 1.5°C | -3.5°C | 16.5°C | -16.6°C | 59 mm | 85% | 4.1 m/s | 2.4 |
| 1983 | 6.0°C | 0.9°C | -4.2°C | 18.5°C | -16.4°C | 21 mm | 86% | 2.9 m/s | — |
| 1982 | 0.3°C | -4.7°C | -9.7°C | 11.4°C | -29.6°C | 36 mm | 92% | 3.2 m/s | — |
| 1981 | 4.9°C | -1.3°C | -7.5°C | 19.6°C | -27.1°C | 55 mm | 79% | 4.5 m/s | — |
Actual recorded February data for each year, 1981–2025 — sourced from NASA POWER.
The average high in February is around 4°C with lows near -6.1°C (mean -1°C), based on 45 years of NASA POWER data.
February averages 50 mm of rainfall in Decatur, one of the drier months. The wettest on record was 183 mm in 2018.
The hottest February reached 23.4°C in 2024. The coldest dipped to -29.6°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average February temperatures have risen by about 0.8°C. Daytime highs moved from 3.6°C to 4.8°C and overnight lows from -7°C to -6.5°C over the same span.
February is one of the cooler months of the year in Decatur and one of the drier months, so plan for around 4°C daytime highs and -6.1°C at night.
Not quite — February is the 2nd coolest month in Decatur, averaging -1°C.
For February in Decatur, pack warm layers and a jacket for chilly mornings, with typical highs of 4°C and lows of -6.1°C. Bring an umbrella or light rain jacket too.
Relative humidity in February averages 82% — quite humid.
Average wind speed in February is 3.8 m/s. The windiest February on record averaged 4.5 m/s (1981).
The wettest February on record was 2018 with 183 mm. On average, February sees 50 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.
