March is one of the cooler months of the year in Caldwell, with average highs near 12.4°C and lows around 0.2°C (mean 6.3°C). It is about average for rainfall, averaging 38 mm of rainfall and 62% relative humidity across the period.
March is one of the cooler months of the year in Caldwell. Across 45 years of records, the warmest March in Caldwell was 2015 — when the month averaged 9.7°C — while the coldest was 2023 at 2.6°C. Typical March days reach 12.4°C with nights near 0.2°C. The long-term trend is warming, about 0.2°C per decade.
March is about average for rainfall in Caldwell, averaging 38 mm of rainfall. The wettest March on record was 1983 with 83 mm, while the driest was 1994 at 5 mm.
Relative humidity in Caldwell during March averages 62%. The most humid March was 1993 at 76%, and the least humid was 1994 at 52%.
March receives about 4 kWh/m²/day of solar energy in Caldwell. The sunniest Marchs were 1992 and 2021 at 4.7 kWh/m²/day, and the cloudiest was 2011 at 3.1.
Average wind speed in Caldwell during March is 2.4 m/s. The windiest March was 2012 at 3 m/s, while the calmest was 1992 at 1.7 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 5.6°C | 6.4°C | 6.3°C | 6.9°C | 6.1°C | +0.5°C |
| Avg High | 11.4°C | 12.7°C | 12.5°C | 12.9°C | 12.1°C | +0.7°C |
| Avg Low | -0.3°C | 0.0°C | 0.1°C | 0.8°C | 0.1°C | +0.4°C |
| Avg Rain | 48 mm | 33 mm | 33 mm | 40 mm | 38 mm | -10 mm |
March temperatures in Caldwell have risen by about 1.1°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -9.6°C (1993) to a record high of 26.2°C (2015).
Rainfall in March is about average for rainfall, averaging 38 mm, with a wettest year of 83 mm.
A good time to visit Caldwell
March is a good time to visit Caldwell, with days averaging 12.4°C and nights around 0.2°C (mean 6.3°C, cooler than Caldwell's yearly average) and moderate rainfall. June and August 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 | 13.1°C | 7.2°C | 1.3°C | 26.0°C | -3.3°C | 33 mm | 66% | 2.7 m/s | 3.9 |
| 2024 | 11.4°C | 5.8°C | 0.2°C | 21.0°C | -5.9°C | 53 mm | 66% | 2.2 m/s | 4 |
| 2023 ❄️ | 7.4°C | 2.6°C | -2.2°C | 13.3°C | -4.8°C | 80 mm | 68% | 2.7 m/s | 3.4 |
| 2022 | 14.3°C | 7.8°C | 1.3°C | 24.7°C | -7.2°C | 13 mm | 56% | 2.5 m/s | 4.2 |
| 2021 | 13.3°C | 6.5°C | -0.3°C | 24.1°C | -4.0°C | 15 mm | 55% | 2.5 m/s | 4.7 |
| 2020 | 12.9°C | 6.6°C | 0.3°C | 22.0°C | -3.9°C | 35 mm | 57% | 2.1 m/s | 4.1 |
| 2019 | 11.2°C | 5.4°C | -0.4°C | 19.0°C | -4.6°C | 21 mm | 64% | 2.1 m/s | 4.1 |
| 2018 | 11.8°C | 6.0°C | 0.1°C | 21.2°C | -4.1°C | 37 mm | 59% | 2.5 m/s | 4 |
| 2017 | 14.2°C | 8.4°C | 2.6°C | 23.1°C | -4.0°C | 71 mm | 67% | 2.6 m/s | 3.5 |
| 2016 | 13.3°C | 7.5°C | 1.6°C | 21.6°C | -3.5°C | 33 mm | 63% | 2.9 m/s | 3.8 |
| 2015 🔥 | 16.3°C | 9.7°C | 3.2°C | 26.2°C | -4.6°C | 12 mm | 53% | 2.1 m/s | 4.5 |
| 2014 | 13.1°C | 7.1°C | 1.0°C | 21.9°C | -4.3°C | 51 mm | 60% | 2.6 m/s | 4 |
| 2013 | 13.7°C | 7.1°C | 0.5°C | 22.2°C | -5.3°C | 11 mm | 54% | 2.3 m/s | 4.4 |
| 2012 | 13.1°C | 6.9°C | 0.8°C | 22.8°C | -5.4°C | 56 mm | 61% | 3 m/s | 3.4 |
| 2011 | 10.3°C | 5.0°C | -0.4°C | 19.3°C | -5.0°C | 76 mm | 71% | 2.6 m/s | 3.1 |
| 2010 | 12.2°C | 5.7°C | -0.7°C | 20.9°C | -5.0°C | 35 mm | 60% | 2.7 m/s | 4.1 |
| 2009 | 10.4°C | 4.6°C | -1.1°C | 21.4°C | -5.7°C | 34 mm | 59% | 2.7 m/s | 3.7 |
| 2008 | 10.0°C | 4.2°C | -1.6°C | 18.4°C | -5.1°C | 37 mm | 60% | 2.4 m/s | 4 |
| 2007 | 15.4°C | 8.4°C | 1.5°C | 24.5°C | -3.5°C | 10 mm | 57% | 2.3 m/s | 4.4 |
| 2006 | 9.3°C | 4.1°C | -1.1°C | 17.3°C | -4.8°C | 58 mm | 68% | 2.6 m/s | 3.5 |
| 2005 | 13.7°C | 7.3°C | 0.9°C | 22.8°C | -3.7°C | 34 mm | 54% | 2.4 m/s | 4.1 |
| 2004 | 15.9°C | 8.9°C | 1.8°C | 25.4°C | -3.1°C | 11 mm | 59% | 2.2 m/s | 4.4 |
| 2003 | 13.3°C | 7.4°C | 1.5°C | 22.6°C | -3.5°C | 39 mm | 60% | 2.7 m/s | 3.9 |
| 2002 | 10.5°C | 4.7°C | -1.0°C | 22.8°C | -6.1°C | 32 mm | 60% | 2.3 m/s | 4.2 |
| 2001 | 14.2°C | 7.5°C | 0.9°C | 22.1°C | -4.5°C | 33 mm | 59% | 2.2 m/s | 4.2 |
| 2000 | 12.1°C | 5.6°C | -0.8°C | 20.8°C | -4.3°C | 40 mm | 62% | 2.2 m/s | 4.4 |
| 1999 | 11.8°C | 5.8°C | -0.2°C | 21.2°C | -4.4°C | 17 mm | 61% | 2.5 m/s | 4 |
| 1998 | 12.2°C | 6.2°C | 0.2°C | 21.6°C | -5.9°C | 36 mm | 63% | 2.2 m/s | 4 |
| 1997 | 12.5°C | 6.4°C | 0.3°C | 24.1°C | -3.4°C | 20 mm | 63% | 2.5 m/s | 4.1 |
| 1996 | 12.4°C | 6.1°C | -0.2°C | 19.9°C | -4.3°C | 48 mm | 66% | 2.3 m/s | 4.1 |
| 1995 | 11.4°C | 5.7°C | -0.1°C | 20.1°C | -4.8°C | 54 mm | 63% | 2.5 m/s | 3.9 |
| 1994 | 14.9°C | 7.5°C | 0.1°C | 24.4°C | -5.3°C | 5 mm | 52% | 2.4 m/s | 4.6 |
| 1993 | 11.2°C | 5.6°C | 0.0°C | 22.5°C | -9.6°C | 81 mm | 76% | 1.9 m/s | 3.5 |
| 1992 | 15.9°C | 8.9°C | 1.8°C | 22.2°C | -1.4°C | 10 mm | 56% | 1.7 m/s | 4.7 |
| 1991 | 11.2°C | 5.0°C | -1.2°C | 22.2°C | -4.6°C | 34 mm | 58% | 2.7 m/s | 4.1 |
| 1990 | 13.5°C | 6.6°C | -0.3°C | 22.1°C | -5.6°C | 21 mm | 55% | 2.3 m/s | 4.5 |
| 1989 | 11.3°C | 5.5°C | -0.2°C | 19.3°C | -8.3°C | 78 mm | 69% | 2.6 m/s | 3.5 |
| 1988 | 12.2°C | 5.7°C | -0.8°C | 24.1°C | -5.1°C | 28 mm | 55% | 2.7 m/s | 4.2 |
| 1987 | 12.1°C | 6.2°C | 0.2°C | 21.7°C | -6.1°C | 38 mm | 60% | 2.6 m/s | 4.3 |
| 1986 | 14.5°C | 8.2°C | 1.9°C | 25.1°C | -3.1°C | 47 mm | 68% | 2.2 m/s | 4.3 |
| 1985 | 9.1°C | 3.3°C | -2.5°C | 17.1°C | -4.7°C | 24 mm | 64% | 2.5 m/s | 4.1 |
| 1984 | 10.4°C | 4.9°C | -0.7°C | 19.8°C | -5.3°C | 47 mm | 72% | 2.1 m/s | 3.8 |
| 1983 🌧️ | 10.6°C | 5.8°C | 0.9°C | 19.9°C | -3.4°C | 83 mm | 73% | 2.5 m/s | — |
| 1982 | 9.7°C | 4.3°C | -1.1°C | 17.3°C | -4.2°C | 35 mm | 68% | 2.3 m/s | — |
| 1981 | 12.8°C | 6.4°C | 0.0°C | 18.8°C | -4.4°C | 50 mm | 60% | 2.4 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 12.4°C with lows near 0.2°C (mean 6.3°C), based on 45 years of NASA POWER data.
March averages 38 mm of rainfall in Caldwell, about average for rainfall. The wettest on record was 83 mm in 1983.
The hottest March reached 26.2°C in 2015. The coldest dipped to -9.6°C in 1993.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1.1°C. Daytime highs moved from 10.5°C to 11.9°C and overnight lows from -0.7°C to 0.1°C over the same span.
March is one of the cooler months of the year in Caldwell and about average for rainfall, so plan for around 12.4°C daytime highs and 0.2°C at night.
Not quite — March is the 5th coolest month in Caldwell, averaging 6.3°C.
For March in Caldwell, pack warm layers and a jacket for chilly mornings, with typical highs of 12.4°C and lows of 0.2°C.
Relative humidity in March averages 62% — moderately humid.
Average wind speed in March is 2.4 m/s. The windiest March on record averaged 3 m/s (2012).
The wettest March on record was 1983 with 83 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 Caldwell 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.
