October is one of the warmer months of the year in Hanover, with average highs near 18.3°C and lows around 6.8°C (mean 12.6°C). It is about average for rainfall, averaging 92 mm of rainfall and 76% relative humidity across the period.
October is one of the warmer months of the year in Hanover. Across 45 years of records, the warmest October in Hanover was 2007 — when the month averaged 16.4°C — while the coldest was 1987 at 9°C. Typical October days reach 18.3°C with nights near 6.8°C. The long-term trend is warming, about 0.5°C per decade.
October is about average for rainfall in Hanover, averaging 92 mm of rainfall. The wettest October on record was 2005 with 215 mm, while the driest was 2024 at 11 mm.
Relative humidity in Hanover during October averages 76%. The most humid October was 2018 at 85%, and the least humid was 2001 at 62%.
October receives about 3.3 kWh/m²/day of solar energy in Hanover. The sunniest Octobers were 2001 and 2024 at 4 kWh/m²/day, and the cloudiest was 2002 at 2.6.
Average wind speed in Hanover during October is 1.2 m/s. The windiest Octobers were 1990 and 2001 at 1.4 m/s, while the calmest were 1994, 2004 and 2024, among others at 1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 11.9°C | 11.9°C | 12.2°C | 13.2°C | 13.9°C | +2°C |
| Avg High | 18.0°C | 17.9°C | 17.8°C | 18.7°C | 19.9°C | +1.9°C |
| Avg Low | 6.0°C | 5.9°C | 6.7°C | 7.8°C | 7.9°C | +1.9°C |
| Avg Rain | 76 mm | 89 mm | 102 mm | 110 mm | 72 mm | -4 mm |
October temperatures in Hanover have risen by about 1.2°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -4.3°C (1992) to a record high of 34.7°C (2019).
Rainfall in October is about average for rainfall, averaging 92 mm, with a wettest year of 215 mm.
A good time to visit Hanover
October is a good time to visit Hanover, with days averaging 18.3°C and nights around 6.8°C (mean 12.6°C, warmer than Hanover's yearly average) and higher rainfall. June and August are marginally more temperate, but October still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 19.9°C | 13.5°C | 7.1°C | 29.0°C | 0.9°C | 77 mm | 67% | 1.3 m/s | 3.7 |
| 2024 | 21.1°C | 14.1°C | 7.2°C | 28.4°C | 1.2°C | 11 mm | 67% | 1 m/s | 4 |
| 2023 | 20.3°C | 14.2°C | 8.2°C | 28.5°C | 2.3°C | 49 mm | 73% | 1.1 m/s | 3.5 |
| 2022 | 17.6°C | 11.7°C | 5.9°C | 24.4°C | 0.6°C | 97 mm | 76% | 1.2 m/s | 3.1 |
| 2021 | 21.0°C | 15.9°C | 10.8°C | 27.1°C | 4.3°C | 84 mm | 83% | 1.1 m/s | 3 |
| 2020 | 19.3°C | 13.7°C | 8.1°C | 27.0°C | -0.7°C | 115 mm | 75% | 1.1 m/s | 3 |
| 2019 | 21.1°C | 15.1°C | 9.1°C | 34.7°C | 1.8°C | 117 mm | 70% | 1.3 m/s | 3.1 |
| 2018 | 17.5°C | 12.7°C | 7.9°C | 28.4°C | -1.5°C | 77 mm | 85% | 1.2 m/s | 3.1 |
| 2017 | 21.8°C | 15.7°C | 9.6°C | 28.6°C | 1.7°C | 130 mm | 73% | 1.2 m/s | 3.4 |
| 2016 | 19.9°C | 13.9°C | 8.0°C | 28.6°C | -0.5°C | 30 mm | 74% | 1.2 m/s | 3.5 |
| 2015 | 17.6°C | 12.0°C | 6.4°C | 25.8°C | -1.9°C | 98 mm | 77% | 1.2 m/s | 3.3 |
| 2014 | 18.8°C | 13.4°C | 8.0°C | 25.7°C | 2.7°C | 98 mm | 76% | 1.3 m/s | 3 |
| 2013 | 18.8°C | 13.4°C | 8.0°C | 30.7°C | -1.8°C | 170 mm | 79% | 1.1 m/s | 3.1 |
| 2012 | 18.0°C | 12.9°C | 7.8°C | 25.9°C | -1.4°C | 188 mm | 82% | 1.2 m/s | 2.8 |
| 2011 | 16.2°C | 11.2°C | 6.3°C | 27.2°C | -3.2°C | 112 mm | 85% | 1.2 m/s | 3 |
| 2010 | 17.4°C | 12.0°C | 6.6°C | 25.6°C | 0.1°C | 81 mm | 81% | 1.2 m/s | 3.3 |
| 2009 | 16.2°C | 11.2°C | 6.2°C | 26.5°C | -1.7°C | 149 mm | 81% | 1.2 m/s | 2.9 |
| 2008 | 16.9°C | 11.0°C | 5.2°C | 26.4°C | -2.5°C | 55 mm | 74% | 1.2 m/s | 3.6 |
| 2007 🔥 | 22.3°C | 16.4°C | 10.5°C | 32.1°C | -0.2°C | 117 mm | 74% | 1.1 m/s | 3.5 |
| 2006 | 17.0°C | 11.4°C | 5.8°C | 27.1°C | -0.4°C | 104 mm | 76% | 1.3 m/s | 3.3 |
| 2005 🌧️ | 18.1°C | 13.1°C | 8.1°C | 28.0°C | 0.0°C | 215 mm | 81% | 1.2 m/s | 2.8 |
| 2004 | 16.7°C | 11.7°C | 6.7°C | 23.0°C | 0.9°C | 53 mm | 83% | 1 m/s | 3 |
| 2003 | 16.1°C | 10.5°C | 5.0°C | 23.1°C | -1.8°C | 123 mm | 81% | 1.2 m/s | 3.3 |
| 2002 | 16.1°C | 11.4°C | 6.7°C | 28.7°C | -1.9°C | 162 mm | 83% | 1.1 m/s | 2.6 |
| 2001 | 19.7°C | 13.0°C | 6.3°C | 27.6°C | -1.0°C | 23 mm | 62% | 1.4 m/s | 4 |
| 2000 | 19.2°C | 12.6°C | 6.0°C | 27.2°C | -0.9°C | 25 mm | 71% | 1.1 m/s | 3.5 |
| 1999 | 16.6°C | 10.7°C | 4.8°C | 22.5°C | 0.2°C | 67 mm | 81% | 1.1 m/s | 3.5 |
| 1998 | 18.5°C | 12.6°C | 6.6°C | 24.2°C | 0.5°C | 80 mm | 72% | 1.2 m/s | 3.3 |
| 1997 | 18.7°C | 12.5°C | 6.2°C | 29.6°C | -1.9°C | 49 mm | 69% | 1.1 m/s | 3.6 |
| 1996 | 16.8°C | 11.1°C | 5.5°C | 23.9°C | 0.0°C | 135 mm | 82% | 1.2 m/s | 3.3 |
| 1995 | 20.1°C | 13.8°C | 7.6°C | 28.0°C | 0.8°C | 175 mm | 76% | 1.3 m/s | 3.4 |
| 1994 | 17.5°C | 11.1°C | 4.8°C | 24.1°C | 0.2°C | 32 mm | 74% | 1 m/s | 3.7 |
| 1993 | 16.2°C | 10.6°C | 5.0°C | 24.3°C | -1.4°C | 86 mm | 77% | 1.2 m/s | 3.3 |
| 1992 | 16.5°C | 10.5°C | 4.4°C | 25.0°C | -4.3°C | 48 mm | 74% | 1.2 m/s | 3.2 |
| 1991 | 18.8°C | 12.5°C | 6.1°C | 27.2°C | -1.8°C | 62 mm | 74% | 1.2 m/s | 3.5 |
| 1990 | 19.5°C | 13.8°C | 8.0°C | 28.5°C | -3.4°C | 153 mm | 75% | 1.4 m/s | 3.4 |
| 1989 | 18.8°C | 12.6°C | 6.4°C | 27.2°C | -0.4°C | 127 mm | 78% | 1.2 m/s | 3.3 |
| 1988 | 15.3°C | 9.5°C | 3.7°C | 26.5°C | -3.8°C | 51 mm | 68% | 1.3 m/s | 3.4 |
| 1987 ❄️ | 15.1°C | 9.0°C | 2.8°C | 20.6°C | -2.3°C | 65 mm | 75% | 1.2 m/s | 3.5 |
| 1986 | 18.8°C | 12.7°C | 6.7°C | 28.3°C | -0.8°C | 63 mm | 72% | 1.1 m/s | 3.3 |
| 1985 | 18.8°C | 12.9°C | 7.0°C | 26.9°C | -3.2°C | 51 mm | 76% | 1.1 m/s | 3.1 |
| 1984 | 21.1°C | 15.3°C | 9.5°C | 26.8°C | 3.1°C | 73 mm | 76% | 1 m/s | 3.2 |
| 1983 | 18.4°C | 12.5°C | 6.7°C | 29.3°C | -3.4°C | 125 mm | 74% | 1.2 m/s | — |
| 1982 | 18.8°C | 12.6°C | 6.5°C | 27.6°C | -3.2°C | 44 mm | 70% | 1.1 m/s | — |
| 1981 | 16.5°C | 10.4°C | 4.3°C | 27.9°C | -1.8°C | 88 mm | 71% | 1.2 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 18.3°C with lows near 6.8°C (mean 12.6°C), based on 45 years of NASA POWER data.
October averages 92 mm of rainfall in Hanover, about average for rainfall. The wettest on record was 215 mm in 2005.
The hottest October reached 34.7°C in 2019. The coldest dipped to -4.3°C in 1992.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 1.2°C. Daytime highs moved from 18.7°C to 20°C and overnight lows from 6.8°C to 7.8°C over the same span.
October is one of the warmer months of the year in Hanover and about average for rainfall, so plan for around 18.3°C daytime highs and 6.8°C at night.
Not quite — October is the 7th coolest month in Hanover, averaging 12.6°C.
For October in Hanover, pack warm layers and a jacket for chilly mornings, with typical highs of 18.3°C and lows of 6.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 76% — quite humid.
Average wind speed in October is 1.2 m/s. The windiest October on record averaged 1.4 m/s (1990).
The wettest October on record was 2005 with 215 mm. On average, October sees 92 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 October, 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 October specifically, along with year-by-year records and how the month has changed over the decades.
