March is one of the cooler months of the year in Laredo, with average highs near 28.2°C and lows around 13.4°C (mean 20.8°C). It is about average for rainfall, averaging 38 mm of rainfall and 60% relative humidity across the period.
March is one of the cooler months of the year in Laredo. Across 45 years of records, the warmest March in Laredo was 2020 — when the month averaged 24.4°C — while the coldest was 1987 at 17.1°C. Typical March days reach 28.2°C with nights near 13.4°C. The long-term trend is warming, about 0.6°C per decade.
March is about average for rainfall in Laredo, averaging 38 mm of rainfall. The wettest March on record was 2025 with 224 mm, while the driest was 2022 at 3 mm.
Relative humidity in Laredo during March averages 60%. The most humid March was 2015 at 75%, and the least humid was 2013 at 45%.
March receives about 5 kWh/m²/day of solar energy in Laredo. The sunniest Marchs were 1986 and 2022 at 6.1 kWh/m²/day, and the cloudiest were 2004 and 2015 at 3.9.
Average wind speed in Laredo during March is 3.5 m/s. The windiest March was 2008 at 4.2 m/s, while the calmest was 2015 at 2.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 20.0°C | 20.1°C | 21.1°C | 20.9°C | 22.6°C | +2.6°C |
| Avg High | 27.7°C | 27.3°C | 28.4°C | 28.2°C | 30.3°C | +2.6°C |
| Avg Low | 12.3°C | 12.9°C | 13.8°C | 13.6°C | 14.9°C | +2.6°C |
| Avg Rain | 20 mm | 45 mm | 35 mm | 45 mm | 49 mm | +29 mm |
March temperatures in Laredo have risen by about 1.8°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -2.7°C (2002) to a record high of 40.9°C (2023).
Rainfall in March is about average for rainfall, averaging 38 mm, with a wettest year of 224 mm.
One of the best times to visit Laredo
March is one of the best times to visit Laredo. Expect days averaging 28.2°C and nights around 13.4°C (mean 20.8°C) — cooler than Laredo's yearly average — with moderate rainfall (38 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 🌧️ | 31.4°C | 23.3°C | 15.2°C | 38.5°C | 8.4°C | 224 mm | 51% | 3.4 m/s | 5.9 |
| 2024 | 30.0°C | 22.7°C | 15.3°C | 36.9°C | 8.9°C | 17 mm | 60% | 3.1 m/s | 4.8 |
| 2023 | 30.6°C | 23.3°C | 15.9°C | 40.9°C | 5.1°C | 22 mm | 57% | 3.5 m/s | 4.7 |
| 2022 | 29.0°C | 20.2°C | 11.5°C | 34.8°C | 2.9°C | 3 mm | 47% | 3.6 m/s | 6.1 |
| 2021 | 29.0°C | 21.5°C | 14.0°C | 35.6°C | 8.2°C | 9 mm | 52% | 3.6 m/s | 5.2 |
| 2020 🔥 | 31.7°C | 24.4°C | 17.2°C | 39.6°C | 10.5°C | 19 mm | 61% | 3.4 m/s | 4.4 |
| 2019 | 26.8°C | 20.2°C | 13.5°C | 34.1°C | 0.8°C | 23 mm | 61% | 3.4 m/s | 4 |
| 2018 | 30.2°C | 22.9°C | 15.6°C | 36.9°C | 8.7°C | 36 mm | 56% | 3.3 m/s | 5.4 |
| 2017 | 29.1°C | 22.5°C | 15.9°C | 36.1°C | 11.2°C | 74 mm | 66% | 3.5 m/s | 5 |
| 2016 | 29.0°C | 21.9°C | 14.7°C | 35.1°C | 5.8°C | 85 mm | 64% | 3.2 m/s | 4.9 |
| 2015 | 24.2°C | 18.1°C | 12.0°C | 30.9°C | 2.0°C | 116 mm | 75% | 2.5 m/s | 3.9 |
| 2014 | 26.4°C | 18.8°C | 11.3°C | 35.7°C | 3.4°C | 39 mm | 63% | 3.3 m/s | 4.7 |
| 2013 | 29.5°C | 20.9°C | 12.2°C | 37.6°C | 5.1°C | 7 mm | 45% | 3.8 m/s | 5.7 |
| 2012 | 29.8°C | 22.6°C | 15.3°C | 36.1°C | 5.1°C | 48 mm | 63% | 3.9 m/s | 5.2 |
| 2011 | 31.9°C | 23.7°C | 15.4°C | 37.5°C | 5.4°C | 3 mm | 54% | 3.9 m/s | 5.7 |
| 2010 | 25.6°C | 17.8°C | 10.1°C | 33.6°C | 2.3°C | 16 mm | 61% | 3.5 m/s | 5.6 |
| 2009 | 29.1°C | 21.4°C | 13.8°C | 36.2°C | 4.4°C | 5 mm | 55% | 4 m/s | 5.4 |
| 2008 | 30.3°C | 21.8°C | 13.3°C | 38.2°C | 3.7°C | 3 mm | 49% | 4.2 m/s | 5.6 |
| 2007 | 28.3°C | 21.8°C | 15.3°C | 35.4°C | 3.2°C | 36 mm | 67% | 4 m/s | 4.6 |
| 2006 | 30.9°C | 23.4°C | 16.0°C | 36.4°C | 5.1°C | 9 mm | 52% | 4.1 m/s | 4.9 |
| 2005 | 28.0°C | 20.2°C | 12.5°C | 36.8°C | 6.4°C | 48 mm | 63% | 3.1 m/s | 5.3 |
| 2004 | 28.7°C | 22.1°C | 15.5°C | 33.5°C | 10.0°C | 84 mm | 67% | 3.7 m/s | 3.9 |
| 2003 | 26.4°C | 19.5°C | 12.5°C | 34.2°C | 3.1°C | 25 mm | 67% | 3.1 m/s | 4.7 |
| 2002 | 27.9°C | 20.0°C | 12.2°C | 36.4°C | -2.7°C | 13 mm | 55% | 3.6 m/s | 5.3 |
| 2001 | 24.8°C | 17.9°C | 10.9°C | 32.3°C | 5.1°C | 60 mm | 68% | 3 m/s | 4.3 |
| 2000 | 30.0°C | 23.2°C | 16.3°C | 35.8°C | 7.7°C | 72 mm | 63% | 3.6 m/s | 4.9 |
| 1999 | 28.9°C | 21.6°C | 14.3°C | 35.1°C | 5.3°C | 70 mm | 64% | 3.6 m/s | 4.7 |
| 1998 | 26.0°C | 18.8°C | 11.5°C | 35.7°C | 2.2°C | 42 mm | 62% | 3.7 m/s | 5.3 |
| 1997 | 27.0°C | 20.2°C | 13.4°C | 34.2°C | 6.9°C | 90 mm | 68% | 3.1 m/s | 4.2 |
| 1996 | 26.2°C | 18.2°C | 10.1°C | 34.5°C | 0.9°C | 4 mm | 48% | 3.5 m/s | 5.5 |
| 1995 | 26.2°C | 19.3°C | 12.4°C | 37.4°C | 1.8°C | 54 mm | 66% | 3.1 m/s | 4.5 |
| 1994 | 27.6°C | 20.3°C | 13.1°C | 38.8°C | 3.1°C | 59 mm | 63% | 3.3 m/s | 4.8 |
| 1993 | 27.0°C | 19.6°C | 12.3°C | 34.6°C | 0.9°C | 58 mm | 65% | 3.2 m/s | 4.6 |
| 1992 | 26.3°C | 19.9°C | 13.5°C | 30.9°C | 5.4°C | 35 mm | 70% | 3.2 m/s | 4.7 |
| 1991 | 30.4°C | 22.2°C | 14.0°C | 39.0°C | 8.7°C | 12 mm | 46% | 3.5 m/s | 5.7 |
| 1990 | 27.4°C | 20.6°C | 13.9°C | 34.9°C | 5.2°C | 28 mm | 67% | 3.8 m/s | 4.3 |
| 1989 | 29.1°C | 20.3°C | 11.5°C | 37.3°C | -1.1°C | 9 mm | 49% | 3.6 m/s | 5.8 |
| 1988 | 27.4°C | 19.6°C | 11.9°C | 36.2°C | 2.2°C | 13 mm | 54% | 3.8 m/s | 4.8 |
| 1987 ❄️ | 24.6°C | 17.1°C | 9.5°C | 31.5°C | 1.3°C | 13 mm | 65% | 3.1 m/s | 4.8 |
| 1986 | 29.0°C | 20.9°C | 12.8°C | 37.3°C | 4.4°C | 6 mm | 52% | 3.5 m/s | 6.1 |
| 1985 | 27.1°C | 20.6°C | 14.0°C | 35.4°C | 7.9°C | 51 mm | 69% | 3.5 m/s | 4.6 |
| 1984 | 29.7°C | 21.5°C | 13.4°C | 40.7°C | 4.0°C | 3 mm | 53% | 4 m/s | 5.1 |
| 1983 | 27.0°C | 19.2°C | 11.4°C | 34.2°C | 5.0°C | 18 mm | 60% | 3.6 m/s | — |
| 1982 | 29.3°C | 21.8°C | 14.3°C | 36.5°C | 1.6°C | 9 mm | 67% | 3.5 m/s | — |
| 1981 | 25.7°C | 19.0°C | 12.3°C | 34.5°C | 5.7°C | 54 mm | 64% | 3.5 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 28.2°C with lows near 13.4°C (mean 20.8°C), based on 45 years of NASA POWER data.
March averages 38 mm of rainfall in Laredo, about average for rainfall. The wettest on record was 224 mm in 2025.
The hottest March reached 40.9°C in 2023. The coldest dipped to -2.7°C in 2002.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1.8°C. Daytime highs moved from 27.8°C to 30°C and overnight lows from 13.1°C to 14.4°C over the same span.
March is one of the cooler months of the year in Laredo and about average for rainfall, so plan for around 28.2°C daytime highs and 13.4°C at night.
Not quite — March is the 5th coolest month in Laredo, averaging 20.8°C.
For March in Laredo, pack light layers you can adjust through the day, with typical highs of 28.2°C and lows of 13.4°C.
Relative humidity in March averages 60% — moderately humid.
Average wind speed in March is 3.5 m/s. The windiest March on record averaged 4.2 m/s (2008).
The wettest March on record was 2025 with 224 mm. On average, March sees 38 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 Laredo 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.
