October is one of the warmer months of the year in Hanover, with average highs near 11.1°C and lows around 0.7°C (mean 5.9°C). It is about average for rainfall, averaging 45 mm of rainfall and 75% 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 2021 — when the month averaged 9.7°C — while the coldest was 2002 at 0.8°C. Typical October days reach 11.1°C with nights near 0.7°C. The long-term trend is warming, about 0.4°C per decade.
October is about average for rainfall in Hanover, averaging 45 mm of rainfall. The wettest October on record was 1984 with 102 mm, while the driest was 1990 at 7 mm.
Relative humidity in Hanover during October averages 75%. The most humid October was 2019 at 83%, and the least humid was 1990 at 64%.
October receives about 2.2 kWh/m²/day of solar energy in Hanover. The sunniest October was 2010 at 2.9 kWh/m²/day, and the cloudiest was 2009 at 1.6.
Average wind speed in Hanover during October is 3.2 m/s. The windiest Octobers were 1981 and 2017 at 3.8 m/s, while the calmest was 1992 at 2.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 5.4°C | 5.6°C | 5.5°C | 6.1°C | 7.3°C | +1.9°C |
| Avg High | 10.7°C | 10.9°C | 10.7°C | 11.2°C | 12.8°C | +2.1°C |
| Avg Low | 0.1°C | 0.3°C | 0.4°C | 1.0°C | 2.0°C | +1.9°C |
| Avg Rain | 44 mm | 43 mm | 45 mm | 45 mm | 50 mm | +6 mm |
October temperatures in Hanover have risen by about 2.6°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -18.1°C (1991) to a record high of 30°C (2025).
Rainfall in October is about average for rainfall, averaging 45 mm, with a wettest year of 102 mm.
A good time to visit Hanover
October is a good time to visit Hanover, with days averaging 11.1°C and nights around 0.7°C (mean 5.9°C, warmer than Hanover's yearly average) and moderate rainfall. July 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 | 14.7°C | 9.3°C | 3.9°C | 30.0°C | -2.2°C | 101 mm | 75% | 3.4 m/s | 2.1 |
| 2024 | 14.9°C | 8.7°C | 2.5°C | 23.6°C | -2.7°C | 21 mm | 68% | 3.1 m/s | 2.7 |
| 2023 | 11.9°C | 7.0°C | 2.1°C | 28.2°C | -12.5°C | 50 mm | 80% | 2.7 m/s | 2.1 |
| 2022 | 12.5°C | 7.0°C | 1.5°C | 22.2°C | -6.6°C | 34 mm | 75% | 3.1 m/s | 2.4 |
| 2021 🔥 | 15.3°C | 9.7°C | 4.2°C | 29.0°C | -3.0°C | 71 mm | 75% | 3.1 m/s | 2.4 |
| 2020 | 7.3°C | 2.4°C | -2.5°C | 21.2°C | -11.0°C | 21 mm | 69% | 3.2 m/s | 2.3 |
| 2019 | 7.2°C | 3.2°C | -0.8°C | 22.8°C | -7.4°C | 74 mm | 83% | 3.5 m/s | 1.8 |
| 2018 | 7.4°C | 2.7°C | -1.9°C | 20.5°C | -7.3°C | 47 mm | 79% | 2.9 m/s | 1.9 |
| 2017 | 12.6°C | 7.0°C | 1.4°C | 23.8°C | -7.1°C | 20 mm | 70% | 3.8 m/s | 2.5 |
| 2016 | 12.0°C | 7.1°C | 2.1°C | 25.7°C | -4.2°C | 49 mm | 79% | 3.3 m/s | 2 |
| 2015 | 13.6°C | 7.8°C | 2.0°C | 26.4°C | -4.2°C | 38 mm | 73% | 3.3 m/s | 2.4 |
| 2014 | 12.1°C | 6.9°C | 1.7°C | 20.9°C | -6.4°C | 20 mm | 75% | 3.7 m/s | 2.4 |
| 2013 | 10.2°C | 5.4°C | 0.6°C | 20.8°C | -6.4°C | 18 mm | 75% | 2.9 m/s | 2.3 |
| 2012 | 8.5°C | 4.1°C | -0.3°C | 23.7°C | -5.7°C | 101 mm | 78% | 3.2 m/s | 1.7 |
| 2011 | 14.6°C | 8.9°C | 3.1°C | 29.2°C | -3.6°C | 23 mm | 74% | 3.2 m/s | 2.6 |
| 2010 | 14.0°C | 8.2°C | 2.5°C | 24.7°C | -6.1°C | 58 mm | 77% | 3.2 m/s | 2.9 |
| 2009 | 7.8°C | 3.6°C | -0.6°C | 17.1°C | -5.1°C | 41 mm | 82% | 2.8 m/s | 1.6 |
| 2008 | 12.6°C | 7.3°C | 1.9°C | 18.6°C | -4.6°C | 65 mm | 75% | 3.3 m/s | 2.3 |
| 2007 | 13.2°C | 7.9°C | 2.6°C | 22.2°C | -3.7°C | 76 mm | 78% | 3 m/s | 2 |
| 2006 | 8.9°C | 3.9°C | -1.0°C | 25.5°C | -8.4°C | 38 mm | 75% | 3.5 m/s | 2.2 |
| 2005 | 12.3°C | 7.0°C | 1.8°C | 25.5°C | -4.2°C | 52 mm | 80% | 3 m/s | 2.3 |
| 2004 | 11.0°C | 6.1°C | 1.1°C | 24.3°C | -6.2°C | 56 mm | 80% | 3.4 m/s | 2.1 |
| 2003 | 12.8°C | 7.2°C | 1.6°C | 26.7°C | -8.2°C | 25 mm | 75% | 2.7 m/s | 2.5 |
| 2002 ❄️ | 5.7°C | 0.8°C | -4.1°C | 20.4°C | -11.6°C | 15 mm | 74% | 2.8 m/s | 2.1 |
| 2001 | 9.7°C | 4.7°C | -0.3°C | 22.0°C | -7.3°C | 36 mm | 74% | 3.2 m/s | 2.2 |
| 2000 | 12.8°C | 6.9°C | 0.9°C | 19.2°C | -5.6°C | 46 mm | 74% | 3.1 m/s | 2.4 |
| 1999 | 10.3°C | 4.9°C | -0.5°C | 18.8°C | -4.6°C | 23 mm | 74% | 3.1 m/s | 2.2 |
| 1998 | 13.0°C | 7.7°C | 2.3°C | 22.5°C | -2.5°C | 65 mm | 78% | 3.2 m/s | 2.2 |
| 1997 | 11.3°C | 6.1°C | 1.0°C | 26.3°C | -9.0°C | 87 mm | 75% | 3.5 m/s | 2.1 |
| 1996 | 11.3°C | 5.8°C | 0.4°C | 24.6°C | -9.5°C | 36 mm | 74% | 3.6 m/s | 2.2 |
| 1995 | 10.6°C | 5.8°C | 0.9°C | 20.9°C | -6.2°C | 36 mm | 77% | 2.7 m/s | 2.2 |
| 1994 | 13.5°C | 8.5°C | 3.5°C | 19.5°C | -4.2°C | 63 mm | 76% | 3.6 m/s | 1.9 |
| 1993 | 9.0°C | 3.4°C | -2.2°C | 18.2°C | -8.2°C | 22 mm | 73% | 3.4 m/s | 2 |
| 1992 | 11.1°C | 5.7°C | 0.4°C | 26.7°C | -8.9°C | 16 mm | 73% | 2.5 m/s | 2.3 |
| 1991 | 6.8°C | 1.9°C | -3.0°C | 17.8°C | -18.1°C | 71 mm | 77% | 3.1 m/s | 2.1 |
| 1990 | 11.8°C | 5.8°C | -0.2°C | 23.3°C | -5.0°C | 7 mm | 64% | 3.2 m/s | 2.6 |
| 1989 | 12.5°C | 6.4°C | 0.4°C | 19.8°C | -5.5°C | 16 mm | 69% | 3 m/s | 2.3 |
| 1988 | 9.7°C | 4.2°C | -1.2°C | 24.5°C | -13.6°C | 25 mm | 71% | 3 m/s | 2.5 |
| 1987 | 9.5°C | 4.1°C | -1.3°C | 22.9°C | -5.7°C | 27 mm | 72% | 3.3 m/s | 2.4 |
| 1986 | 11.4°C | 5.5°C | -0.4°C | 21.0°C | -6.1°C | 19 mm | 77% | 2.9 m/s | 2.3 |
| 1985 | 10.5°C | 4.9°C | -0.6°C | 16.9°C | -9.3°C | 35 mm | 77% | 3.6 m/s | 2 |
| 1984 🌧️ | 11.7°C | 6.8°C | 1.9°C | 24.5°C | -11.8°C | 102 mm | 78% | 3.5 m/s | 1.9 |
| 1983 | 10.9°C | 5.8°C | 0.8°C | 15.9°C | -5.1°C | 33 mm | 78% | 3.1 m/s | — |
| 1982 | 11.1°C | 6.2°C | 1.2°C | 18.7°C | -5.0°C | 73 mm | 81% | 3.2 m/s | — |
| 1981 | 9.4°C | 4.8°C | 0.3°C | 19.8°C | -11.6°C | 69 mm | 73% | 3.8 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 11.1°C with lows near 0.7°C (mean 5.9°C), based on 45 years of NASA POWER data.
October averages 45 mm of rainfall in Hanover, about average for rainfall. The wettest on record was 102 mm in 1984.
The hottest October reached 30°C in 2025. The coldest dipped to -18.1°C in 1991.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 2.6°C. Daytime highs moved from 10.7°C to 13.9°C and overnight lows from 0.7°C to 2.8°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 11.1°C daytime highs and 0.7°C at night.
Not quite — October is the 7th coolest month in Hanover, averaging 5.9°C.
For October in Hanover, pack warm layers and a jacket for chilly mornings, with typical highs of 11.1°C and lows of 0.7°C.
Relative humidity in October averages 75% — quite humid.
Average wind speed in October is 3.2 m/s. The windiest October on record averaged 3.8 m/s (1981).
The wettest October on record was 1984 with 102 mm. On average, October sees 45 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.
