March is one of the cooler months of the year in Hanover, with average highs near 9.4°C and lows around -1.3°C (mean 4.1°C). It is about average for rainfall, averaging 88 mm of rainfall and 81% relative humidity across the period.
March is one of the cooler months of the year in Hanover. Across 45 years of records, the warmest March in Hanover was 2012 — when the month averaged 9.5°C — while the coldest was 1984 at -0.2°C. Typical March days reach 9.4°C with nights near -1.3°C. The long-term trend is warming, about 0.5°C per decade.
March is about average for rainfall in Hanover, averaging 88 mm of rainfall. The wettest March on record was 1993 with 186 mm, while the driest was 2006 at 16 mm.
Relative humidity in Hanover during March averages 81%. The most humid March was 1993 at 90%, and the least humid was 2025 at 73%.
March receives about 3.9 kWh/m²/day of solar energy in Hanover. The sunniest Marchs were 1987 and 2006 at 4.5 kWh/m²/day, and the cloudiest was 1993 at 3.2.
Average wind speed in Hanover during March is 1.8 m/s. The windiest March was 1999 at 2.2 m/s, while the calmest were 1990, 2009 and 2020 at 1.6 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 3.3°C | 3.3°C | 4.2°C | 3.9°C | 6.3°C | +3°C |
| Avg High | 8.7°C | 8.3°C | 9.7°C | 9.1°C | 12.1°C | +3.4°C |
| Avg Low | -2.1°C | -1.8°C | -1.3°C | -1.3°C | 0.5°C | +2.6°C |
| Avg Rain | 75 mm | 111 mm | 87 mm | 85 mm | 76 mm | +1 mm |
March temperatures in Hanover have risen by about 3.2°C between 1981–1985 and 2021–2025.
March has ranged from a record low of -21.4°C (1993) to a record high of 26.6°C (2025).
Rainfall in March is about average for rainfall, averaging 88 mm, with a wettest year of 186 mm.
A quieter season to visit Hanover
If your dates are flexible, the more temperate months of June and August tend to be the most comfortable for visiting Hanover. That said, March — with days averaging 9.4°C and nights around -1.3°C (mean 4.1°C) and higher rainfall (88 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 | 14.0°C | 7.3°C | 0.6°C | 26.6°C | -6.8°C | 52 mm | 73% | 2 m/s | 4.3 |
| 2024 | 11.9°C | 6.5°C | 1.1°C | 23.3°C | -4.4°C | 112 mm | 81% | 1.8 m/s | 4 |
| 2023 | 10.4°C | 4.9°C | -0.6°C | 17.9°C | -5.9°C | 65 mm | 77% | 1.9 m/s | 4.1 |
| 2022 | 11.6°C | 5.9°C | 0.1°C | 22.8°C | -8.7°C | 63 mm | 77% | 1.9 m/s | 3.8 |
| 2021 | 11.9°C | 5.9°C | -0.1°C | 21.0°C | -8.0°C | 71 mm | 77% | 1.8 m/s | 4.4 |
| 2020 | 12.8°C | 7.3°C | 1.7°C | 23.2°C | -4.9°C | 90 mm | 80% | 1.6 m/s | 3.6 |
| 2019 | 7.6°C | 2.4°C | -2.7°C | 20.6°C | -12.4°C | 116 mm | 83% | 1.7 m/s | 3.9 |
| 2018 | 6.6°C | 2.1°C | -2.4°C | 19.0°C | -5.0°C | 64 mm | 81% | 2 m/s | 3.9 |
| 2017 | 8.3°C | 3.2°C | -1.8°C | 21.1°C | -12.2°C | 104 mm | 77% | 2.1 m/s | 4 |
| 2016 | 13.2°C | 7.4°C | 1.7°C | 24.0°C | -5.1°C | 39 mm | 81% | 1.7 m/s | 4 |
| 2015 | 6.8°C | 1.3°C | -4.2°C | 19.5°C | -21.1°C | 93 mm | 81% | 1.7 m/s | 3.6 |
| 2014 | 6.2°C | 0.9°C | -4.5°C | 17.0°C | -13.9°C | 84 mm | 80% | 1.9 m/s | 3.6 |
| 2013 | 6.4°C | 2.0°C | -2.5°C | 13.4°C | -7.3°C | 65 mm | 80% | 1.9 m/s | 3.6 |
| 2012 🔥 | 15.1°C | 9.5°C | 3.8°C | 26.1°C | -4.8°C | 35 mm | 82% | 1.7 m/s | 4.1 |
| 2011 | 8.9°C | 3.6°C | -1.7°C | 22.1°C | -7.1°C | 147 mm | 82% | 1.8 m/s | 4 |
| 2010 | 12.1°C | 6.6°C | 1.1°C | 20.8°C | -5.3°C | 104 mm | 83% | 1.8 m/s | 3.7 |
| 2009 | 9.8°C | 4.3°C | -1.1°C | 20.0°C | -11.5°C | 39 mm | 80% | 1.6 m/s | 3.6 |
| 2008 | 9.5°C | 4.1°C | -1.2°C | 16.0°C | -5.3°C | 105 mm | 81% | 1.9 m/s | 4 |
| 2007 | 9.4°C | 3.6°C | -2.1°C | 23.2°C | -12.6°C | 103 mm | 83% | 1.9 m/s | 4.1 |
| 2006 | 10.0°C | 4.5°C | -1.1°C | 24.1°C | -5.6°C | 16 mm | 76% | 1.8 m/s | 4.5 |
| 2005 | 6.4°C | 1.7°C | -3.0°C | 14.7°C | -11.3°C | 106 mm | 84% | 1.8 m/s | 3.4 |
| 2004 | 10.7°C | 5.2°C | -0.3°C | 22.2°C | -5.1°C | 57 mm | 83% | 1.7 m/s | 3.8 |
| 2003 | 9.8°C | 4.1°C | -1.6°C | 20.6°C | -11.4°C | 96 mm | 86% | 1.7 m/s | 3.6 |
| 2002 | 10.6°C | 5.0°C | -0.6°C | 22.4°C | -8.0°C | 104 mm | 75% | 1.9 m/s | 3.6 |
| 2001 | 7.5°C | 2.4°C | -2.7°C | 12.6°C | -8.4°C | 113 mm | 79% | 1.9 m/s | 3.6 |
| 2000 | 13.0°C | 6.8°C | 0.7°C | 24.5°C | -6.5°C | 130 mm | 79% | 1.8 m/s | 4 |
| 1999 | 7.8°C | 2.4°C | -3.1°C | 19.2°C | -11.9°C | 86 mm | 78% | 2.2 m/s | 4.2 |
| 1998 | 9.3°C | 5.0°C | 0.6°C | 26.2°C | -8.8°C | 131 mm | 85% | 1.8 m/s | 3.9 |
| 1997 | 9.0°C | 4.0°C | -1.1°C | 19.4°C | -5.6°C | 113 mm | 82% | 2.1 m/s | 3.6 |
| 1996 | 5.8°C | 0.7°C | -4.4°C | 16.8°C | -13.4°C | 108 mm | 82% | 1.8 m/s | 3.7 |
| 1995 | 11.2°C | 5.0°C | -1.2°C | 20.9°C | -10.8°C | 42 mm | 79% | 1.7 m/s | 3.9 |
| 1994 | 5.9°C | 1.6°C | -2.7°C | 20.6°C | -8.4°C | 168 mm | 89% | 1.9 m/s | 3.7 |
| 1993 🌧️ | 5.3°C | 0.7°C | -3.9°C | 16.5°C | -21.4°C | 186 mm | 90% | 1.8 m/s | 3.2 |
| 1992 | 7.7°C | 2.8°C | -2.1°C | 17.0°C | -9.9°C | 121 mm | 81% | 2 m/s | 3.7 |
| 1991 | 10.1°C | 4.9°C | -0.2°C | 19.0°C | -5.3°C | 106 mm | 83% | 1.9 m/s | 3.7 |
| 1990 | 11.3°C | 5.8°C | 0.2°C | 24.3°C | -9.1°C | 53 mm | 80% | 1.6 m/s | 3.7 |
| 1989 | 8.4°C | 3.0°C | -2.5°C | 24.3°C | -13.0°C | 98 mm | 84% | 1.7 m/s | 3.6 |
| 1988 | 9.8°C | 4.2°C | -1.3°C | 21.0°C | -8.7°C | 53 mm | 78% | 1.8 m/s | 4.2 |
| 1987 | 10.6°C | 4.8°C | -1.0°C | 21.0°C | -8.7°C | 40 mm | 80% | 1.7 m/s | 4.5 |
| 1986 | 9.8°C | 3.6°C | -2.6°C | 23.1°C | -12.7°C | 61 mm | 81% | 1.9 m/s | 4.4 |
| 1985 | 10.1°C | 4.4°C | -1.3°C | 22.0°C | -6.2°C | 73 mm | 77% | 2 m/s | 3.9 |
| 1984 ❄️ | 4.2°C | -0.2°C | -4.7°C | 14.6°C | -12.8°C | 126 mm | 86% | 1.9 m/s | 4 |
| 1983 | 9.8°C | 4.7°C | -0.5°C | 18.5°C | -6.1°C | 124 mm | 80% | 2 m/s | — |
| 1982 | 8.2°C | 3.1°C | -2.0°C | 18.4°C | -9.0°C | 62 mm | 82% | 1.9 m/s | — |
| 1981 | 7.8°C | 2.5°C | -2.8°C | 21.9°C | -7.3°C | 36 mm | 77% | 1.9 m/s | — |
Actual recorded March data for each year, 1981–2025 — sourced from NASA POWER.
The average high in March is around 9.4°C with lows near -1.3°C (mean 4.1°C), based on 45 years of NASA POWER data.
March averages 88 mm of rainfall in Hanover, about average for rainfall. The wettest on record was 186 mm in 1993.
The hottest March reached 26.6°C in 2025. The coldest dipped to -21.4°C in 1993.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average March temperatures have risen by about 3.2°C. Daytime highs moved from 8°C to 12°C and overnight lows from -2.3°C to 0.2°C over the same span.
March is one of the cooler months of the year in Hanover and about average for rainfall, so plan for around 9.4°C daytime highs and -1.3°C at night.
Not quite — March is the 4th coolest month in Hanover, averaging 4.1°C.
For March in Hanover, pack warm layers and a jacket for chilly mornings, with typical highs of 9.4°C and lows of -1.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in March averages 81% — quite humid.
Average wind speed in March is 1.8 m/s. The windiest March on record averaged 2.2 m/s (1999).
The wettest March on record was 1993 with 186 mm. On average, March sees 88 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 Hanover 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.
