Hartford Weather in October
Hartford in October sees moderate daytime temperatures of 18°C (64°F) and nighttime lows of 7°C (45°F). Rainfall is fairly high this month at around 121 mm (4.8 in), so pack a rain jacket to stay dry.
Rainfall in Hartford in October
Past climate data indicates that roughly 11 days will see rain, totalling around 121 mm (4.8 in) for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.
Temperature in Hartford in October
In October, expect moderate temperatures in Hartford, with highs of 18°C (64°F) and lows of 7°C (45°F) at night. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights fall to 7°C (45°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Hartford in October
Expect a lot of sunshine this month, with about 199 hours of sun. These sunny conditions add to the overall experience.If your ideal day consists of dry skies and pleasant temperatures, May and September typically offer the best circumstances for Hartford.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Hartford's climate page.
Hartford Temperature in October
Min Temperature
7°C (45°F)
Max Temperature
18°C (64°F)
Chance of Rain
37%
Precipitation
121 mm (4.8 in)
Rainy days
11 days
Humidity
69%
Sunshine
199 hours
Percentage Sunshine
58%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Hartford typically drop from around 20°C (68°F) at the start of October to approximately 15°C (59°F) by the end. Nights are cold, with lows typically ranging from 4°C (39°F) to 10°C (50°F).
Average temperatures in October
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather for Hartford in October
Browse day-by-day weather records for Hartford spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hartford historical weather extremes in October
Based on 49 years of weather observations in Hartford between 1976 and 2025, these are the recorded extremes.
- The warmest day in October was on October 6, 2007, with a maximum of 31°C (88°F).
- Nighttime temperatures dropped to -6°C (21°F) on October 31, 1988, marking the coldest October night on record.
Best Places in the United States of America in October
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in October →
perfect weather
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What to Wear in Hartford in October
For Hartford in October, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Hartford in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Hartford's climate page.
Temperature Rainfall Sunshine Humidity
See the full Hartford climate overview or explore weather in the United States of America.
