October is one of the warmer months of the year in West Hartford, with average highs near 16.7°C and lows around 5.5°C (mean 11.1°C). It is a relatively wet time of year, averaging 113 mm of rainfall and 77% relative humidity across the period.
October is one of the warmer months of the year in West Hartford. Across 45 years of records, the warmest October in West Hartford was 2017 — when the month averaged 15.5°C — while the coldest was 1988 at 8.3°C. Typical October days reach 16.7°C with nights near 5.5°C. The long-term trend is warming, about 0.6°C per decade.
October is a relatively wet time of year in West Hartford, averaging 113 mm of rainfall. The wettest October on record was 2005 with 388 mm, while the driest was 2001 at 18 mm.
Relative humidity in West Hartford during October averages 77%. The most humid October was 2011 at 85%, and the least humid were 2001 and 2024 at 68%.
October receives about 3 kWh/m²/day of solar energy in West Hartford. The sunniest October was 2024 at 3.6 kWh/m²/day, and the cloudiest were 2005 and 2012 at 2.5.
Average wind speed in West Hartford during October is 0.1 m/s. The windiest Octobers were 2022, 2023 and 2024, among others at 0.1 m/s, while the calmest were 1998 and 2025 at 0 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 10.1°C | 10.6°C | 10.9°C | 11.9°C | 12.7°C | +2.6°C |
| Avg High | 15.9°C | 16.4°C | 16.4°C | 17.3°C | 18.2°C | +2.3°C |
| Avg Low | 4.2°C | 4.8°C | 5.4°C | 6.6°C | 7.1°C | +2.9°C |
| Avg Rain | 105 mm | 113 mm | 119 mm | 119 mm | 106 mm | +1 mm |
October temperatures in West Hartford have risen by about 2.2°C between 1981–1985 and 2021–2025.
October has ranged from a record low of -8°C (2020) to a record high of 31.1°C (2007).
Rainfall in October is a relatively wet time of year, averaging 113 mm, with a wettest year of 388 mm.
Daytime highs and overnight lows have shifted differently — highs rose about 0.5°C per decade while lows rose 0.8°C per decade, narrowing the gap between day and night.
A good time to visit West Hartford
October is a good time to visit West Hartford, with days averaging 16.7°C and nights around 5.5°C (mean 11.1°C, warmer than West Hartford's yearly average) and higher rainfall. August and July 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 | 17.6°C | 12.2°C | 6.7°C | 30.3°C | 0.1°C | 135 mm | 75% | 0 m/s | 3.3 |
| 2024 | 20.0°C | 13.3°C | 6.6°C | 28.6°C | 0.7°C | 19 mm | 68% | 0.1 m/s | 3.6 |
| 2023 | 18.4°C | 13.1°C | 7.8°C | 28.6°C | 0.0°C | 91 mm | 84% | 0.1 m/s | 3 |
| 2022 | 17.1°C | 11.7°C | 6.4°C | 23.7°C | -0.4°C | 114 mm | 78% | 0.1 m/s | 3 |
| 2021 | 19.0°C | 13.9°C | 8.9°C | 24.9°C | 0.7°C | 150 mm | 83% | 0.1 m/s | 2.9 |
| 2020 | 17.3°C | 11.8°C | 6.4°C | 24.8°C | -8.0°C | 127 mm | 78% | 0.1 m/s | 2.8 |
| 2019 | 17.3°C | 12.4°C | 7.4°C | 27.6°C | 1.7°C | 168 mm | 79% | 0.1 m/s | 2.6 |
| 2018 | 15.4°C | 10.4°C | 5.5°C | 26.5°C | -3.7°C | 117 mm | 84% | 0.1 m/s | 2.7 |
| 2017 🔥 | 21.6°C | 15.5°C | 9.3°C | 27.5°C | 1.9°C | 190 mm | 75% | 0.1 m/s | 3.2 |
| 2016 | 17.8°C | 12.1°C | 6.3°C | 27.2°C | -1.4°C | 96 mm | 75% | 0.1 m/s | 3.2 |
| 2015 | 16.3°C | 10.5°C | 4.8°C | 23.8°C | -5.1°C | 69 mm | 74% | 0.1 m/s | 3.2 |
| 2014 | 17.2°C | 12.2°C | 7.3°C | 25.4°C | -0.2°C | 129 mm | 80% | 0.1 m/s | 2.8 |
| 2013 | 18.0°C | 12.1°C | 6.2°C | 26.6°C | -2.1°C | 44 mm | 76% | 0.1 m/s | 3 |
| 2012 | 17.6°C | 12.5°C | 7.5°C | 26.2°C | -2.8°C | 90 mm | 82% | 0.1 m/s | 2.5 |
| 2011 | 15.5°C | 10.7°C | 6.0°C | 25.0°C | -3.4°C | 144 mm | 85% | 0.1 m/s | 3 |
| 2010 | 15.9°C | 10.8°C | 5.6°C | 23.0°C | -0.1°C | 141 mm | 79% | 0.1 m/s | 2.9 |
| 2009 | 14.7°C | 9.6°C | 4.6°C | 21.8°C | -1.0°C | 147 mm | 80% | 0.1 m/s | 2.7 |
| 2008 | 15.7°C | 9.9°C | 4.2°C | 23.2°C | -2.9°C | 76 mm | 78% | 0.1 m/s | 3.3 |
| 2007 | 20.2°C | 14.5°C | 8.7°C | 31.1°C | -2.3°C | 97 mm | 78% | 0.1 m/s | 2.8 |
| 2006 | 16.0°C | 10.4°C | 4.8°C | 24.7°C | -2.1°C | 171 mm | 78% | 0.1 m/s | 3.1 |
| 2005 🌧️ | 16.2°C | 11.6°C | 7.0°C | 28.4°C | -3.1°C | 388 mm | 84% | 0.1 m/s | 2.5 |
| 2004 | 15.4°C | 10.5°C | 5.5°C | 23.1°C | 0.1°C | 54 mm | 81% | 0.1 m/s | 3 |
| 2003 | 15.3°C | 9.7°C | 4.2°C | 26.1°C | -2.4°C | 122 mm | 80% | 0.1 m/s | 2.8 |
| 2002 | 15.3°C | 9.9°C | 4.4°C | 29.7°C | -3.9°C | 83 mm | 75% | 0.1 m/s | 2.9 |
| 2001 | 18.5°C | 12.0°C | 5.5°C | 26.2°C | -3.5°C | 18 mm | 68% | 0.1 m/s | 3.5 |
| 2000 | 17.0°C | 10.9°C | 4.8°C | 26.0°C | -2.1°C | 38 mm | 73% | 0.1 m/s | 3 |
| 1999 | 15.7°C | 9.7°C | 3.7°C | 22.2°C | -2.4°C | 80 mm | 79% | 0.1 m/s | 3.4 |
| 1998 | 16.3°C | 10.9°C | 5.5°C | 22.9°C | 0.5°C | 117 mm | 75% | 0 m/s | 3 |
| 1997 | 16.8°C | 10.4°C | 4.1°C | 27.3°C | -3.9°C | 51 mm | 69% | 0.1 m/s | 3.1 |
| 1996 | 15.3°C | 9.7°C | 4.1°C | 21.2°C | -2.4°C | 171 mm | 80% | 0.1 m/s | 3.3 |
| 1995 | 18.5°C | 12.5°C | 6.6°C | 26.3°C | 0.4°C | 239 mm | 80% | 0.1 m/s | 3.1 |
| 1994 | 16.5°C | 10.4°C | 4.3°C | 22.2°C | -0.5°C | 28 mm | 75% | 0.1 m/s | 3.4 |
| 1993 | 14.5°C | 9.1°C | 3.6°C | 24.1°C | -3.0°C | 103 mm | 77% | 0.1 m/s | 3.1 |
| 1992 | 15.2°C | 9.2°C | 3.3°C | 24.8°C | -2.0°C | 61 mm | 73% | 0.1 m/s | 3 |
| 1991 | 16.9°C | 11.3°C | 5.6°C | 24.0°C | -1.3°C | 88 mm | 81% | 0.1 m/s | 3 |
| 1990 | 18.1°C | 12.7°C | 7.3°C | 27.7°C | -3.4°C | 195 mm | 78% | 0.1 m/s | 3.2 |
| 1989 | 16.1°C | 10.6°C | 5.1°C | 21.9°C | -1.2°C | 212 mm | 82% | 0.1 m/s | 3 |
| 1988 ❄️ | 13.9°C | 8.3°C | 2.7°C | 26.5°C | -5.3°C | 73 mm | 74% | 0.1 m/s | 3 |
| 1987 | 14.5°C | 8.5°C | 2.6°C | 20.5°C | -3.3°C | 103 mm | 79% | 0.1 m/s | 3.3 |
| 1986 | 16.4°C | 10.3°C | 4.1°C | 24.6°C | -3.1°C | 66 mm | 73% | 0.1 m/s | 3 |
| 1985 | 16.6°C | 10.9°C | 5.1°C | 23.6°C | -2.8°C | 61 mm | 74% | 0.1 m/s | 3.1 |
| 1984 | 18.6°C | 12.5°C | 6.4°C | 24.8°C | -3.6°C | 87 mm | 75% | 0.1 m/s | 3.2 |
| 1983 | 15.9°C | 10.3°C | 4.6°C | 26.0°C | -3.9°C | 132 mm | 75% | 0.1 m/s | — |
| 1982 | 17.1°C | 10.6°C | 4.1°C | 26.8°C | -3.8°C | 66 mm | 72% | 0.1 m/s | — |
| 1981 | 14.2°C | 8.5°C | 2.8°C | 18.7°C | -2.4°C | 140 mm | 77% | 0.1 m/s | — |
Actual recorded October data for each year, 1981–2025 — sourced from NASA POWER.
The average high in October is around 16.7°C with lows near 5.5°C (mean 11.1°C), based on 45 years of NASA POWER data.
October averages 113 mm of rainfall in West Hartford, a relatively wet time of year. The wettest on record was 388 mm in 2005.
The hottest October reached 31.1°C in 2007. The coldest dipped to -8°C in 2020.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average October temperatures have risen by about 2.2°C. Daytime highs moved from 16.5°C to 18.4°C and overnight lows from 4.6°C to 7.3°C over the same span.
October is one of the warmer months of the year in West Hartford and a relatively wet time of year, so plan for around 16.7°C daytime highs and 5.5°C at night.
Not quite — October is the 7th coolest month in West Hartford, averaging 11.1°C.
For October in West Hartford, pack warm layers and a jacket for chilly mornings, with typical highs of 16.7°C and lows of 5.5°C. Bring an umbrella or light rain jacket too.
Relative humidity in October averages 77% — quite humid.
Average wind speed in October is 0.1 m/s. The windiest October on record averaged 0.1 m/s (1981).
The wettest October on record was 2005 with 388 mm. On average, October sees 113 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 West Hartford 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.
