October is one of the warmer months of the year in Morristown, with average highs near 20.9°C and lows around 8°C (mean 14.5°C). It is one of the drier months, averaging 73 mm of rainfall and 71% relative humidity across the period.
October is one of the warmer months of the year in Morristown. Across 45 years of records, the warmest October in Morristown was 1984 — when the month averaged 18.3°C — while the coldest was 1988 at 10.2°C. Typical October days reach 20.9°C with nights near 8°C. The long-term trend is warming, about 0.3°C per decade.
October is one of the drier months in Morristown, averaging 73 mm of rainfall. The wettest October on record was 2014 with 154 mm, while the driest was 2000 at 4 mm.
Relative humidity in Morristown during October averages 71%. The most humid October was 2002 at 83%, and the least humid was 2000 at 56%.
October receives about 3.6 kWh/m²/day of solar energy in Morristown. The sunniest Octobers were 2001, 2010 and 2024 at 4.3 kWh/m²/day, and the cloudiest was 2002 at 2.6.
Average wind speed in Morristown during October is 0.6 m/s. The windiest Octobers were 2001 and 2011 at 0.7 m/s, while the calmest were 2002, 2004 and 2020, among others at 0.5 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 13.9°C | 14.2°C | 14.6°C | 14.8°C | 14.9°C | +1°C |
| Avg High | 20.3°C | 21.0°C | 21.0°C | 21.0°C | 21.3°C | +1°C |
| Avg Low | 7.5°C | 7.3°C | 8.1°C | 8.6°C | 8.6°C | +1.1°C |
| Avg Rain | 73 mm | 70 mm | 60 mm | 96 mm | 64 mm | -9 mm |
October temperatures in Morristown have fallen by about 0.4°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -4.2°C (2017) to a record high of 34.3°C (2019).
Rainfall in October is one of the drier months, averaging 73 mm, with a wettest year of 154 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.2°C per decade while lows rose 0.4°C per decade, narrowing the gap between day and night.
A good time to visit Morristown
October is a good time to visit Morristown, with days averaging 20.9°C and nights around 8°C (mean 14.5°C, warmer than Morristown's yearly average) and moderate rainfall. June and September 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 | 21.4°C | 14.8°C | 8.2°C | 28.3°C | 3.1°C | 65 mm | 69% | 0.6 m/s | 3.9 |
| 2024 | 21.5°C | 15.3°C | 9.0°C | 26.7°C | 0.6°C | 8 mm | 73% | 0.6 m/s | 4.3 |
| 2023 | 22.1°C | 15.2°C | 8.4°C | 29.3°C | 1.0°C | 26 mm | 66% | 0.6 m/s | 3.6 |
| 2022 | 20.1°C | 13.0°C | 6.0°C | 25.5°C | -2.0°C | 33 mm | 64% | 0.6 m/s | 3.9 |
| 2021 | 21.1°C | 15.8°C | 10.5°C | 27.1°C | 1.8°C | 122 mm | 81% | 0.6 m/s | 3.3 |
| 2020 | 21.5°C | 15.5°C | 9.5°C | 25.9°C | 0.1°C | 129 mm | 80% | 0.5 m/s | 3.7 |
| 2019 | 23.5°C | 16.9°C | 10.3°C | 34.3°C | -0.3°C | 145 mm | 68% | 0.6 m/s | 3.6 |
| 2018 | 20.7°C | 15.1°C | 9.6°C | 30.1°C | -0.2°C | 96 mm | 77% | 0.6 m/s | 3.6 |
| 2017 | 22.6°C | 15.7°C | 8.8°C | 29.5°C | -4.2°C | 152 mm | 69% | 0.6 m/s | 4 |
| 2016 | 25.1°C | 17.6°C | 10.2°C | 30.1°C | 3.4°C | 17 mm | 62% | 0.6 m/s | 4.1 |
| 2015 | 19.7°C | 14.2°C | 8.7°C | 24.9°C | -1.2°C | 119 mm | 76% | 0.6 m/s | 3.7 |
| 2014 🌧️ | 19.8°C | 14.3°C | 8.7°C | 28.7°C | 0.3°C | 154 mm | 77% | 0.6 m/s | 3.3 |
| 2013 | 20.5°C | 14.6°C | 8.7°C | 28.4°C | -3.2°C | 28 mm | 74% | 0.6 m/s | 3.6 |
| 2012 | 18.3°C | 12.8°C | 7.3°C | 24.8°C | 1.0°C | 78 mm | 76% | 0.6 m/s | 3.2 |
| 2011 | 19.3°C | 13.1°C | 6.8°C | 26.9°C | 0.8°C | 87 mm | 70% | 0.7 m/s | 3.8 |
| 2010 | 21.0°C | 14.1°C | 7.3°C | 28.2°C | 0.8°C | 84 mm | 64% | 0.6 m/s | 4.3 |
| 2009 | 18.3°C | 12.7°C | 7.2°C | 26.1°C | -1.6°C | 135 mm | 82% | 0.6 m/s | 3 |
| 2008 | 20.7°C | 13.8°C | 6.8°C | 28.4°C | -2.4°C | 41 mm | 63% | 0.6 m/s | 4 |
| 2007 | 24.5°C | 17.3°C | 10.0°C | 31.3°C | -0.7°C | 56 mm | 65% | 0.6 m/s | 3.8 |
| 2006 | 18.3°C | 12.2°C | 6.2°C | 27.1°C | -4.0°C | 93 mm | 73% | 0.6 m/s | 3.6 |
| 2005 | 22.3°C | 15.5°C | 8.7°C | 29.8°C | -1.1°C | 34 mm | 68% | 0.6 m/s | 3.5 |
| 2004 | 21.5°C | 16.2°C | 10.9°C | 25.5°C | 1.4°C | 66 mm | 81% | 0.5 m/s | 3.1 |
| 2003 | 20.4°C | 13.9°C | 7.3°C | 25.5°C | 0.6°C | 38 mm | 71% | 0.6 m/s | 3.7 |
| 2002 | 20.8°C | 15.6°C | 10.3°C | 28.6°C | 2.4°C | 101 mm | 83% | 0.5 m/s | 2.6 |
| 2001 | 20.1°C | 12.9°C | 5.6°C | 26.1°C | -3.6°C | 33 mm | 60% | 0.7 m/s | 4.3 |
| 2000 | 23.1°C | 15.6°C | 8.0°C | 29.6°C | -2.2°C | 4 mm | 56% | 0.6 m/s | 4 |
| 1999 | 21.7°C | 14.4°C | 7.2°C | 27.3°C | -0.5°C | 63 mm | 64% | 0.6 m/s | 3.9 |
| 1998 | 23.5°C | 16.2°C | 9.0°C | 29.4°C | -1.5°C | 43 mm | 60% | 0.6 m/s | 4 |
| 1997 | 21.0°C | 14.2°C | 7.4°C | 28.9°C | -1.7°C | 75 mm | 69% | 0.6 m/s | 3.7 |
| 1996 | 20.3°C | 13.6°C | 6.9°C | 27.5°C | -0.6°C | 43 mm | 73% | 0.6 m/s | 3.6 |
| 1995 | 20.9°C | 14.1°C | 7.3°C | 27.3°C | 0.5°C | 113 mm | 74% | 0.6 m/s | 3.5 |
| 1994 | 21.1°C | 14.2°C | 7.4°C | 26.2°C | -2.1°C | 65 mm | 72% | 0.5 m/s | 3.5 |
| 1993 | 20.5°C | 13.7°C | 6.9°C | 26.3°C | -2.2°C | 53 mm | 69% | 0.6 m/s | 3.1 |
| 1992 | 19.5°C | 12.9°C | 6.3°C | 25.2°C | -0.6°C | 80 mm | 72% | 0.6 m/s | 3.3 |
| 1991 | 21.5°C | 14.4°C | 7.3°C | 26.8°C | 0.2°C | 22 mm | 68% | 0.6 m/s | 4.1 |
| 1990 | 20.1°C | 14.0°C | 7.8°C | 27.4°C | -0.6°C | 139 mm | 74% | 0.6 m/s | 3.7 |
| 1989 | 19.0°C | 12.9°C | 6.8°C | 26.1°C | -1.5°C | 56 mm | 78% | 0.6 m/s | 3.7 |
| 1988 ❄️ | 16.7°C | 10.2°C | 3.8°C | 26.9°C | -3.3°C | 61 mm | 69% | 0.6 m/s | 3.4 |
| 1987 | 19.0°C | 11.2°C | 3.4°C | 25.1°C | -2.8°C | 15 mm | 59% | 0.6 m/s | 3.8 |
| 1986 | 20.7°C | 14.8°C | 8.8°C | 29.8°C | 1.3°C | 99 mm | 72% | 0.6 m/s | 3.4 |
| 1985 | 22.6°C | 16.6°C | 10.6°C | 28.6°C | 2.7°C | 78 mm | 74% | 0.6 m/s | 3.1 |
| 1984 🔥 | 24.1°C | 18.3°C | 12.4°C | 27.9°C | 3.4°C | 87 mm | 73% | 0.5 m/s | 2.9 |
| 1983 | 21.0°C | 14.6°C | 8.1°C | 28.6°C | 2.1°C | 90 mm | 70% | 0.6 m/s | — |
| 1982 | 20.5°C | 14.0°C | 7.6°C | 29.3°C | -0.6°C | 75 mm | 73% | 0.5 m/s | — |
| 1981 | 19.5°C | 12.7°C | 6.0°C | 28.1°C | -3.5°C | 92 mm | 69% | 0.6 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 20.9°C with lows near 8°C (mean 14.5°C), based on 45 years of NASA POWER data.
October averages 73 mm of rainfall in Morristown, one of the drier months. The wettest on record was 154 mm in 2014.
The hottest October reached 34.3°C in 2019. The coldest dipped to -4.2°C in 2017.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have fallen by about 0.4°C. Daytime highs moved from 21.5°C to 21.2°C and overnight lows from 8.9°C to 8.4°C over the same span.
October is one of the warmer months of the year in Morristown and one of the drier months, so plan for around 20.9°C daytime highs and 8°C at night.
Not quite — October is the 7th coolest month in Morristown, averaging 14.5°C.
For October in Morristown, pack light layers you can adjust through the day, with typical highs of 20.9°C and lows of 8°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 71% — moderately humid.
Average wind speed in October is 0.6 m/s. The windiest October on record averaged 0.7 m/s (2001).
The wettest October on record was 2014 with 154 mm. On average, October sees 73 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 Morristown 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.
