March is one of the cooler months of the year in Littleton, with average highs near 10.4°C and lows around -3.7°C (mean 3.4°C). It is about average for rainfall, averaging 39 mm of rainfall and 53% relative humidity across the period.
March is one of the cooler months of the year in Littleton. Across 45 years of records, the warmest Marchs in Littleton were 2012 and 2017 — when the month averaged 7°C — while the coldest was 1984 at 0.5°C. Typical March days reach 10.4°C with nights near -3.7°C. The long-term trend is warming, about 0.3°C per decade.
March is about average for rainfall in Littleton, averaging 39 mm of rainfall. The wettest March on record was 1983 with 98 mm, while the driest was 2012 at 3 mm.
Relative humidity in Littleton during March averages 53%. The most humid March was 1983 at 69%, and the least humid was 2012 at 39%.
March receives about 4.9 kWh/m²/day of solar energy in Littleton. The sunniest March was 2012 at 5.6 kWh/m²/day, and the cloudiest were 2001 and 2003 at 4.2.
Average wind speed in Littleton during March is 2.9 m/s. The windiest March was 1991 at 3.7 m/s, while the calmest was 2001 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 2.4°C | 3.3°C | 3.4°C | 4.1°C | 3.2°C | +0.8°C |
| Avg High | 9.1°C | 10.4°C | 10.4°C | 11.4°C | 10.4°C | +1.3°C |
| Avg Low | -4.3°C | -3.7°C | -3.6°C | -3.2°C | -4.0°C | +0.3°C |
| Avg Rain | 41 mm | 41 mm | 37 mm | 33 mm | 45 mm | +4 mm |
March temperatures in Littleton have risen by about 1.2°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -18.2°C (2002) to a record high of 25.2°C (2012).
Rainfall in March is about average for rainfall, averaging 39 mm, with a wettest year of 98 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.5°C per decade while lows rose 0.2°C per decade, widening the gap between day and night.
A quieter season to visit Littleton
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Littleton. That said, March — with days averaging 10.4°C and nights around -3.7°C (mean 3.4°C) and moderate rainfall (39 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 | 13.4°C | 5.6°C | -2.2°C | 22.5°C | -6.8°C | 39 mm | 46% | 2.9 m/s | 4.9 |
| 2024 | 9.8°C | 2.9°C | -3.9°C | 16.1°C | -8.7°C | 55 mm | 59% | 2.6 m/s | 5.2 |
| 2023 | 8.2°C | 1.5°C | -5.3°C | 18.3°C | -10.7°C | 17 mm | 50% | 2.6 m/s | 5.2 |
| 2022 | 9.8°C | 2.5°C | -4.8°C | 22.6°C | -15.2°C | 42 mm | 50% | 2.9 m/s | 5 |
| 2021 | 9.1°C | 2.1°C | -4.9°C | 19.4°C | -15.3°C | 74 mm | 56% | 2.7 m/s | 5 |
| 2020 | 11.9°C | 4.4°C | -3.1°C | 17.4°C | -11.5°C | 43 mm | 56% | 2.7 m/s | 5.4 |
| 2019 | 8.8°C | 1.6°C | -5.5°C | 20.8°C | -16.6°C | 60 mm | 60% | 2.5 m/s | 4.9 |
| 2018 | 11.9°C | 4.2°C | -3.6°C | 20.2°C | -7.4°C | 33 mm | 47% | 2.9 m/s | 5.1 |
| 2017 | 14.7°C | 7.0°C | -0.6°C | 23.8°C | -8.9°C | 32 mm | 47% | 3.3 m/s | 4.7 |
| 2016 | 10.1°C | 3.2°C | -3.7°C | 20.1°C | -11.3°C | 49 mm | 53% | 2.8 m/s | 4.5 |
| 2015 | 13.4°C | 5.8°C | -1.8°C | 23.6°C | -13.5°C | 24 mm | 53% | 2.5 m/s | 5.2 |
| 2014 | 9.9°C | 2.9°C | -4.1°C | 17.5°C | -8.4°C | 30 mm | 54% | 3.1 m/s | 5.1 |
| 2013 | 9.6°C | 2.4°C | -4.8°C | 18.7°C | -15.0°C | 32 mm | 52% | 2.8 m/s | 4.9 |
| 2012 🔥 | 15.1°C | 7.0°C | -1.1°C | 25.2°C | -10.6°C | 3 mm | 39% | 3.1 m/s | 5.6 |
| 2011 | 11.8°C | 4.6°C | -2.5°C | 19.4°C | -6.8°C | 17 mm | 48% | 3.3 m/s | 5 |
| 2010 | 9.0°C | 2.3°C | -4.4°C | 20.8°C | -12.3°C | 52 mm | 59% | 3.1 m/s | 5.1 |
| 2009 | 11.5°C | 4.3°C | -2.9°C | 21.4°C | -13.2°C | 28 mm | 45% | 3.2 m/s | 5.1 |
| 2008 | 9.3°C | 2.3°C | -4.7°C | 18.4°C | -10.3°C | 23 mm | 51% | 3.2 m/s | 5.2 |
| 2007 | 12.8°C | 5.5°C | -1.7°C | 20.7°C | -14.0°C | 29 mm | 54% | 2.7 m/s | 4.6 |
| 2006 | 9.8°C | 2.7°C | -4.4°C | 18.7°C | -10.6°C | 28 mm | 51% | 2.8 m/s | 4.6 |
| 2005 | 8.7°C | 2.4°C | -3.8°C | 19.8°C | -8.0°C | 31 mm | 54% | 2.8 m/s | 4.6 |
| 2004 | 14.9°C | 6.8°C | -1.3°C | 23.7°C | -5.9°C | 13 mm | 45% | 2.7 m/s | 5.3 |
| 2003 | 9.0°C | 2.6°C | -3.7°C | 20.7°C | -10.3°C | 95 mm | 58% | 3.1 m/s | 4.2 |
| 2002 | 8.9°C | 1.4°C | -6.2°C | 19.9°C | -18.2°C | 23 mm | 47% | 2.9 m/s | 5.3 |
| 2001 | 9.2°C | 2.9°C | -3.4°C | 17.6°C | -7.3°C | 37 mm | 59% | 2.3 m/s | 4.2 |
| 2000 | 9.6°C | 2.9°C | -3.8°C | 19.3°C | -9.9°C | 61 mm | 57% | 2.9 m/s | 4.4 |
| 1999 | 13.3°C | 5.5°C | -2.4°C | 21.0°C | -6.4°C | 15 mm | 46% | 2.9 m/s | 5.4 |
| 1998 | 8.3°C | 1.5°C | -5.2°C | 20.2°C | -14.7°C | 45 mm | 59% | 2.7 m/s | 5.1 |
| 1997 | 13.2°C | 4.8°C | -3.7°C | 23.4°C | -11.3°C | 16 mm | 45% | 2.6 m/s | 5.2 |
| 1996 | 8.4°C | 1.6°C | -5.2°C | 19.8°C | -13.9°C | 35 mm | 54% | 2.7 m/s | 4.9 |
| 1995 | 10.3°C | 3.3°C | -3.7°C | 19.9°C | -10.9°C | 35 mm | 53% | 2.9 m/s | 4.7 |
| 1994 | 11.7°C | 4.2°C | -3.2°C | 20.8°C | -9.6°C | 27 mm | 50% | 2.7 m/s | 4.9 |
| 1993 | 10.0°C | 3.3°C | -3.4°C | 19.7°C | -13.3°C | 35 mm | 55% | 3.1 m/s | 4.8 |
| 1992 | 9.8°C | 3.2°C | -3.4°C | 16.1°C | -13.0°C | 90 mm | 64% | 2.4 m/s | 4.5 |
| 1991 | 9.4°C | 2.8°C | -3.7°C | 16.5°C | -7.5°C | 28 mm | 48% | 3.7 m/s | 4.9 |
| 1990 | 9.9°C | 3.1°C | -3.6°C | 19.3°C | -9.2°C | 86 mm | 60% | 2.5 m/s | 4.6 |
| 1989 | 13.2°C | 5.0°C | -3.1°C | 23.1°C | -17.5°C | 20 mm | 48% | 2.8 m/s | 4.8 |
| 1988 | 7.3°C | 0.8°C | -5.6°C | 19.8°C | -12.4°C | 38 mm | 53% | 3.6 m/s | 4.7 |
| 1987 | 7.8°C | 1.3°C | -5.2°C | 22.5°C | -15.2°C | 34 mm | 58% | 3.1 m/s | 4.7 |
| 1986 | 13.2°C | 5.8°C | -1.5°C | 22.9°C | -7.5°C | 16 mm | 49% | 2.7 m/s | 4.9 |
| 1985 | 9.6°C | 2.8°C | -4.1°C | 18.4°C | -11.0°C | 30 mm | 52% | 3.3 m/s | 5 |
| 1984 ❄️ | 6.4°C | 0.5°C | -5.5°C | 14.8°C | -13.8°C | 51 mm | 63% | 3 m/s | 4.4 |
| 1983 🌧️ | 6.7°C | 0.6°C | -5.4°C | 18.5°C | -13.4°C | 98 mm | 69% | 2.9 m/s | — |
| 1982 | 10.0°C | 3.0°C | -3.9°C | 17.7°C | -10.2°C | 16 mm | 49% | 3.3 m/s | — |
| 1981 | 7.7°C | 1.8°C | -4.1°C | 18.9°C | -8.8°C | 65 mm | 58% | 3 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 10.4°C with lows near -3.7°C (mean 3.4°C), based on 45 years of NASA POWER data.
March averages 39 mm of rainfall in Littleton, about average for rainfall. The wettest on record was 98 mm in 1983.
The hottest March reached 25.2°C in 2012. The coldest dipped to -18.2°C in 2002.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 1.2°C. Daytime highs moved from 8.1°C to 10.1°C and overnight lows from -4.6°C to -4.2°C over the same span.
March is one of the cooler months of the year in Littleton and about average for rainfall, so plan for around 10.4°C daytime highs and -3.7°C at night.
Not quite — March is the 4th coolest month in Littleton, averaging 3.4°C.
For March in Littleton, pack warm layers and a jacket for chilly mornings, with typical highs of 10.4°C and lows of -3.7°C.
Relative humidity in March averages 53% — relatively dry.
Average wind speed in March is 2.9 m/s. The windiest March on record averaged 3.7 m/s (1991).
The wettest March on record was 1983 with 98 mm. On average, March sees 39 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 Littleton 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.
