March is one of the cooler months of the year in Killeen, with average highs near 22.4°C and lows around 8.9°C (mean 15.7°C). It is about average for rainfall, averaging 66 mm of rainfall and 70% relative humidity across the period.
March is one of the cooler months of the year in Killeen. Across 45 years of records, the warmest March in Killeen was 2025 — when the month averaged 19.3°C — while the coldest was 2001 at 12°C. Typical March days reach 22.4°C with nights near 8.9°C. The long-term trend is warming, about 0.6°C per decade.
March is about average for rainfall in Killeen, averaging 66 mm of rainfall. The wettest March on record was 2007 with 205 mm, while the driest was 2011 at 4 mm.
Relative humidity in Killeen during March averages 70%. The most humid March was 2015 at 79%, and the least humid was 1996 at 54%.
March receives about 4.6 kWh/m²/day of solar energy in Killeen. The sunniest Marchs were 1986 and 2025 at 5.3 kWh/m²/day, and the cloudiest were 1990 and 2020 at 3.5.
Average wind speed in Killeen during March is 3.3 m/s. The windiest Marchs were 2002 and 2008 at 3.9 m/s, while the calmest was 2015 at 2.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 15.0°C | 14.7°C | 15.7°C | 15.8°C | 17.7°C | +2.7°C |
| Avg High | 21.9°C | 21.3°C | 22.2°C | 22.6°C | 24.8°C | +2.9°C |
| Avg Low | 8.1°C | 8.2°C | 9.1°C | 9.0°C | 10.5°C | +2.4°C |
| Avg Rain | 64 mm | 68 mm | 82 mm | 63 mm | 47 mm | -16 mm |
March temperatures in Killeen have risen by about 2°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -7.1°C (2014) to a record high of 34.7°C (2011).
Rainfall in March is about average for rainfall, averaging 66 mm, with a wettest year of 205 mm.
A good time to visit Killeen
March is a good time to visit Killeen, with days averaging 22.4°C and nights around 8.9°C (mean 15.7°C, cooler than Killeen's yearly average) and moderate rainfall. October and April are marginally more temperate, but March still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🔥 | 27.3°C | 19.3°C | 11.3°C | 34.4°C | 3.8°C | 35 mm | 57% | 3.5 m/s | 5.3 |
| 2024 | 24.1°C | 17.6°C | 11.1°C | 30.4°C | 3.9°C | 47 mm | 74% | 3 m/s | 4.6 |
| 2023 | 25.0°C | 17.9°C | 10.8°C | 33.7°C | 1.7°C | 31 mm | 66% | 3.4 m/s | 4.4 |
| 2022 | 23.8°C | 15.7°C | 7.6°C | 32.9°C | -3.8°C | 26 mm | 56% | 3.5 m/s | 5.2 |
| 2021 | 24.0°C | 16.5°C | 9.1°C | 30.2°C | 2.8°C | 33 mm | 64% | 3.6 m/s | 5 |
| 2020 | 24.7°C | 18.9°C | 13.2°C | 30.7°C | 5.6°C | 109 mm | 77% | 3 m/s | 3.5 |
| 2019 | 19.8°C | 13.9°C | 8.0°C | 27.4°C | -4.9°C | 23 mm | 71% | 3.2 m/s | 4.6 |
| 2018 | 24.4°C | 17.5°C | 10.6°C | 31.2°C | 3.1°C | 60 mm | 68% | 3.2 m/s | 4.8 |
| 2017 | 24.4°C | 18.3°C | 12.2°C | 29.0°C | 3.0°C | 59 mm | 73% | 3.3 m/s | 4.9 |
| 2016 | 23.3°C | 16.8°C | 10.3°C | 30.0°C | 0.7°C | 108 mm | 74% | 3.3 m/s | 4.9 |
| 2015 | 20.6°C | 14.6°C | 8.6°C | 27.7°C | -4.2°C | 85 mm | 79% | 2.6 m/s | 4 |
| 2014 | 20.7°C | 13.3°C | 5.9°C | 29.8°C | -7.1°C | 26 mm | 69% | 3.3 m/s | 4.7 |
| 2013 | 22.7°C | 14.8°C | 6.9°C | 29.9°C | -0.8°C | 40 mm | 63% | 3.5 m/s | 5.2 |
| 2012 | 23.8°C | 17.8°C | 11.8°C | 29.9°C | 3.1°C | 146 mm | 77% | 3.4 m/s | 4.3 |
| 2011 | 25.9°C | 18.0°C | 10.1°C | 34.7°C | -0.5°C | 4 mm | 62% | 3.4 m/s | 5 |
| 2010 | 19.9°C | 12.9°C | 5.9°C | 26.4°C | -0.3°C | 80 mm | 73% | 3.3 m/s | 5.2 |
| 2009 | 23.3°C | 16.2°C | 9.1°C | 30.9°C | -1.4°C | 100 mm | 66% | 3.6 m/s | 4.5 |
| 2008 | 22.7°C | 15.5°C | 8.3°C | 31.2°C | -3.5°C | 89 mm | 70% | 3.9 m/s | 4.4 |
| 2007 🌧️ | 22.7°C | 17.2°C | 11.7°C | 28.1°C | -2.1°C | 205 mm | 76% | 3.2 m/s | 4.1 |
| 2006 | 24.3°C | 17.7°C | 11.1°C | 31.3°C | -1.0°C | 79 mm | 67% | 3.5 m/s | 4.4 |
| 2005 | 20.3°C | 14.0°C | 7.6°C | 27.1°C | 0.7°C | 60 mm | 74% | 3 m/s | 4.8 |
| 2004 | 24.1°C | 17.9°C | 11.7°C | 29.8°C | 3.4°C | 45 mm | 72% | 3.1 m/s | 4.2 |
| 2003 | 20.9°C | 14.4°C | 8.0°C | 26.4°C | -0.9°C | 34 mm | 74% | 2.9 m/s | 4.6 |
| 2002 | 21.2°C | 14.1°C | 7.0°C | 29.1°C | -5.5°C | 42 mm | 70% | 3.9 m/s | 4.4 |
| 2001 ❄️ | 18.0°C | 12.0°C | 6.0°C | 24.7°C | 2.0°C | 111 mm | 78% | 2.7 m/s | 3.8 |
| 2000 | 24.6°C | 17.7°C | 10.9°C | 31.3°C | 2.8°C | 54 mm | 70% | 3.3 m/s | 4.6 |
| 1999 | 21.7°C | 15.3°C | 8.8°C | 29.2°C | 0.4°C | 90 mm | 73% | 3.4 m/s | 4.1 |
| 1998 | 20.0°C | 13.4°C | 6.7°C | 27.9°C | -3.7°C | 82 mm | 71% | 3.8 m/s | 4.8 |
| 1997 | 21.6°C | 15.4°C | 9.3°C | 28.6°C | 2.0°C | 65 mm | 78% | 3.2 m/s | 4.2 |
| 1996 | 21.2°C | 13.2°C | 5.2°C | 30.4°C | -5.5°C | 29 mm | 54% | 3.8 m/s | 5.1 |
| 1995 | 20.5°C | 14.5°C | 8.5°C | 31.8°C | -4.4°C | 75 mm | 77% | 3.3 m/s | 3.8 |
| 1994 | 22.8°C | 15.7°C | 8.5°C | 29.8°C | -1.4°C | 38 mm | 70% | 3.3 m/s | 4.6 |
| 1993 | 20.1°C | 13.8°C | 7.5°C | 26.4°C | -4.0°C | 98 mm | 75% | 3.2 m/s | 4.5 |
| 1992 | 21.0°C | 14.7°C | 8.5°C | 25.9°C | -0.4°C | 94 mm | 79% | 3 m/s | 4.9 |
| 1991 | 22.4°C | 15.6°C | 8.7°C | 31.2°C | 3.6°C | 24 mm | 65% | 3.3 m/s | 4.7 |
| 1990 | 21.6°C | 15.7°C | 9.8°C | 27.4°C | 0.9°C | 90 mm | 74% | 3.5 m/s | 3.5 |
| 1989 | 21.1°C | 14.3°C | 7.6°C | 29.6°C | -5.6°C | 75 mm | 72% | 3.4 m/s | 4.8 |
| 1988 | 22.4°C | 14.5°C | 6.7°C | 29.9°C | -2.7°C | 58 mm | 63% | 3.7 m/s | 4.9 |
| 1987 | 19.8°C | 12.8°C | 5.8°C | 26.1°C | -2.0°C | 39 mm | 70% | 2.9 m/s | 5.1 |
| 1986 | 23.4°C | 15.9°C | 8.4°C | 27.5°C | -0.9°C | 12 mm | 66% | 3.1 m/s | 5.3 |
| 1985 | 22.5°C | 16.4°C | 10.3°C | 28.8°C | 2.7°C | 78 mm | 77% | 3.5 m/s | 4.1 |
| 1984 | 23.4°C | 16.0°C | 8.5°C | 32.5°C | -0.7°C | 60 mm | 66% | 3.7 m/s | 4.7 |
| 1983 | 20.2°C | 13.5°C | 6.7°C | 28.1°C | -1.3°C | 107 mm | 72% | 3.4 m/s | — |
| 1982 | 23.1°C | 16.8°C | 10.6°C | 32.6°C | -1.7°C | 53 mm | 74% | 3.6 m/s | — |
| 1981 | 21.1°C | 14.5°C | 8.0°C | 29.0°C | 0.3°C | 89 mm | 69% | 3.1 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 22.4°C with lows near 8.9°C (mean 15.7°C), based on 45 years of NASA POWER data.
March averages 66 mm of rainfall in Killeen, about average for rainfall. The wettest on record was 205 mm in 2007.
The hottest March reached 34.7°C in 2011. The coldest dipped to -7.1°C in 2014.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 2°C. Daytime highs moved from 22.1°C to 24.8°C and overnight lows from 8.8°C to 10°C over the same span.
March is one of the cooler months of the year in Killeen and about average for rainfall, so plan for around 22.4°C daytime highs and 8.9°C at night.
Not quite — March is the 5th coolest month in Killeen, averaging 15.7°C.
For March in Killeen, pack light layers you can adjust through the day, with typical highs of 22.4°C and lows of 8.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 70% — moderately humid.
Average wind speed in March is 3.3 m/s. The windiest March on record averaged 3.9 m/s (2002).
The wettest March on record was 2007 with 205 mm. On average, March sees 66 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 Killeen behaves each March, 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 March specifically, along with year-by-year records and how the month has changed over the decades.
