Hartford weather in October: Hartford, Connecticut: normal highs, lows, rain and records for October
Hartford in October has a normal high of 64°F and a normal low of 42°F, a daily mean of 53°F, falling from 70°F on the 1st to 58°F by the 31st. Measurable precipitation falls on 11 days in a normal October, 4.52 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 18°C and low of 6°C, 115 mm of precipitation and 2 cm of snow in October.
- NOAA stationHartford-Bradley International Airport
- Station IDUSW00014740
- Location41.94°N 72.68°W
- Elevation190 ft (58 m)
- From the center12 miles
- Population122,129
- Jan 35° 19°
- Feb 39° 21°
- Mar 47° 28°
- Apr 61° 38°
- May 72° 48°
- Jun 80° 58°
- Jul 85° 63°
- Aug 83° 62°
- Sep 76° 54°
- Oct 64° 42°
- Nov 52° 33°
- Dec 41° 25°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Hartford in October?
The normal high is 64°F and the normal low 42°F, for a daily mean of 53.0°F. October is 11.8°F cooler than September and 10.7°F warmer than November. October is the 6th warmest month of the year in Hartford and the wettest. Across the month the normal high falls 12°F, from 70°F on October 1 to 58°F on October 31. From one year to the next October's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 50°F and 56°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 34%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| October 1 | 70°F | 48°F | 33% | 21% |
| October 8 | 67°F | 45°F | 34% | 21% |
| October 15 | 64°F | 43°F | 34% | 21% |
| October 22 | 61°F | 40°F | 34% | 20% |
| October 31 | 58°F | 38°F | 33% | 19% |
Every day of October: normal high, low and chance of precipitation (warmest afternoon October 1, coldest night October 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| October 1 | 70°F | 48°F | 33% | 21% | 11 h 50 min |
| October 2 | 69°F | 47°F | 33% | 21% | 11 h 50 min |
| October 3 | 69°F | 47°F | 33% | 21% | 11 h 40 min |
| October 4 | 68°F | 47°F | 33% | 21% | 11 h 40 min |
| October 5 | 68°F | 46°F | 33% | 21% | 11 h 40 min |
| October 6 | 67°F | 46°F | 33% | 21% | 11 h 30 min |
| October 7 | 67°F | 45°F | 33% | 21% | 11 h 30 min |
| October 8 | 67°F | 45°F | 34% | 21% | 11 h 30 min |
| October 9 | 66°F | 45°F | 34% | 21% | 11 h 30 min |
| October 10 | 66°F | 44°F | 34% | 21% | 11 h 20 min |
| October 11 | 65°F | 44°F | 34% | 21% | 11 h 20 min |
| October 12 | 65°F | 44°F | 34% | 21% | 11 h 20 min |
| October 13 | 65°F | 43°F | 34% | 21% | 11 h 10 min |
| October 14 | 64°F | 43°F | 34% | 21% | 11 h 10 min |
| October 15 | 64°F | 43°F | 34% | 21% | 11 h 10 min |
| October 16 | 63°F | 42°F | 34% | 21% | 11 h 10 min |
| October 17 | 63°F | 42°F | 34% | 21% | 11 h |
| October 18 | 63°F | 42°F | 34% | 21% | 11 h |
| October 19 | 62°F | 41°F | 34% | 21% | 11 h |
| October 20 | 62°F | 41°F | 34% | 20% | 11 h |
| October 21 | 62°F | 41°F | 34% | 20% | 10 h 50 min |
| October 22 | 61°F | 40°F | 34% | 20% | 10 h 50 min |
| October 23 | 61°F | 40°F | 34% | 20% | 10 h 50 min |
| October 24 | 60°F | 40°F | 34% | 20% | 10 h 50 min |
| October 25 | 60°F | 39°F | 34% | 20% | 10 h 40 min |
| October 26 | 60°F | 39°F | 34% | 20% | 10 h 40 min |
| October 27 | 59°F | 39°F | 34% | 20% | 10 h 40 min |
| October 28 | 59°F | 39°F | 33% | 20% | 10 h 30 min |
| October 29 | 59°F | 38°F | 33% | 20% | 10 h 30 min |
| October 30 | 58°F | 38°F | 33% | 20% | 10 h 30 min |
| October 31 | 58°F | 38°F | 33% | 19% | 10 h 30 min |
- Normal high
- 64°FOctober average
- Normal low
- 42°FOctober average
- Precipitation
- 4.52 inmonth total
- Days with precipitation
- 110.01 inch or more
- Snowfall
- 0.7 inmonth total
- Nights at 32°F or colder
- 4
- Daylight
- 11 h 50 min to 10 h 30 minOctober 1 to October 31
- Days at 70°F or more
- 8
- Days at 80°F or more
- 1
- Sunshine
- 71%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014740; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Hartford in October?
On a given October day the chance of 0.01 inch or more is 34% on average, highest around October 16 (34%). In all, 4.52 in falls on 11 days of a normal October, 2 of them with an inch or more.
In a normal October in Hartford, 4 nights fall to freezing and snowfall averages 0.7 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014740.
How humid and windy is Hartford in October?
At 3 p.m. the normal temperature is 56°F with 49% relative humidity and a dew point of 37°F; at 6 a.m. it is 42°F with 81% humidity. The wind averages 7.7 mph, most often from the west-northwest in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 42°F | 36°F | 81% | 5.7 mph | 43% |
| 9 a.m. | 48°F | 38°F | 68% | 8.0 mph | – |
| noon | 54°F | 37°F | 52% | 10.3 mph | – |
| 3 p.m. | 56°F | 37°F | 49% | 10.8 mph | – |
| 6 p.m. | 51°F | 37°F | 61% | 8.1 mph | 40% |
| 9 p.m. | 47°F | 38°F | 70% | 7.1 mph | 44% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014740. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for October in Hartford?
The warmest October temperature on Hartford's official record (since 1905) is 91°F, on October 2, 1927; the coldest is 17°F, on October 18, 1978. The wettest October brought 16.32 in (2005); the snowiest, 12.3 inches (2011).
The October mean against the 1991-2020 normal of 53.0°F: 2021 57.4°F (+4.4), 2022 53.9°F (+0.9), 2023 57.5°F (+4.5), 2024 57.3°F (+4.3), 2025 54.0°F (+1.0). 5 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 57.4°F | +4.4°F | 4.67 in |
| 2022 | 53.9°F | +0.9°F | 5.03 in |
| 2023 | 57.5°F | +4.5°F | 2.99 in |
| 2024 | 57.3°F | +4.3°F | 0.52 in |
| 2025 | 54.0°F | +1.0°F | 4.62 in |
Source: records: ACIS, NWS threaded record BDLthr; recent months: ACIS, station USW00014740. Records and recent months use complete months only.
How does October in Hartford compare across Connecticut?
Across the 13 places PlainClimate covers in Connecticut, October normal highs run from 57°F in Norfolk to 64°F in Bridgeport; Hartford's is 64°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Hartford in September76°F by day, 54°F at night
- Hartford in November52°F by day, 33°F at night
- Hartford through the yearEvery month, frost dates, records and recent years
- Connecticut in OctoberThe statewide normal and the warmest and coolest places
- Bridgeport: Connecticut's warmest Octobernormal high 64°F