Boston weather in October: Boston, Massachusetts: normal highs, lows, rain and records for October
Boston in October has a normal high of 62°F and a normal low of 48°F, a daily mean of 55°F, falling from 67°F on the 1st to 57°F by the 31st. Measurable precipitation falls on 11 days in a normal October, 4.03 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 17°C and low of 9°C, 102 mm of precipitation and 1 cm of snow in October.
- NOAA stationBoston Logan International Airport
- Station IDUSW00014739
- Location42.36°N 71.01°W
- Elevation12 ft (4 m)
- From the center2 miles
- Population673,458
- Jan 37° 23°
- Feb 39° 25°
- Mar 46° 31°
- Apr 56° 41°
- May 67° 50°
- Jun 76° 60°
- Jul 82° 66°
- Aug 80° 65°
- Sep 73° 58°
- Oct 62° 48°
- Nov 52° 38°
- Dec 42° 29°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Boston in October?
The normal high is 62°F and the normal low 48°F, for a daily mean of 54.8°F. October is 10.8°F cooler than September and 10.1°F warmer than November. October is the 6th warmest month of the year in Boston and the 3rd wettest. Across the month the normal high falls 10°F, from 67°F on October 1 to 57°F on October 31. From one year to the next October's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Octobers in three average between 53°F and 57°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 | 67°F | 53°F | 32% | 20% |
| October 8 | 65°F | 50°F | 33% | 20% |
| October 15 | 62°F | 48°F | 34% | 20% |
| October 22 | 60°F | 46°F | 34% | 20% |
| October 31 | 57°F | 43°F | 34% | 20% |
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 | 67°F | 53°F | 32% | 20% | 11 h 50 min |
| October 2 | 67°F | 52°F | 32% | 20% | 11 h 50 min |
| October 3 | 67°F | 52°F | 32% | 20% | 11 h 40 min |
| October 4 | 66°F | 52°F | 33% | 20% | 11 h 40 min |
| October 5 | 66°F | 51°F | 33% | 20% | 11 h 40 min |
| October 6 | 66°F | 51°F | 33% | 20% | 11 h 30 min |
| October 7 | 65°F | 51°F | 33% | 20% | 11 h 30 min |
| October 8 | 65°F | 50°F | 33% | 20% | 11 h 30 min |
| October 9 | 65°F | 50°F | 33% | 20% | 11 h 30 min |
| October 10 | 64°F | 49°F | 33% | 20% | 11 h 20 min |
| October 11 | 64°F | 49°F | 33% | 20% | 11 h 20 min |
| October 12 | 63°F | 49°F | 33% | 20% | 11 h 20 min |
| October 13 | 63°F | 48°F | 33% | 20% | 11 h 10 min |
| October 14 | 63°F | 48°F | 34% | 20% | 11 h 10 min |
| October 15 | 62°F | 48°F | 34% | 20% | 11 h 10 min |
| October 16 | 62°F | 47°F | 34% | 20% | 11 h 10 min |
| October 17 | 62°F | 47°F | 34% | 20% | 11 h |
| October 18 | 61°F | 47°F | 34% | 20% | 11 h |
| October 19 | 61°F | 46°F | 34% | 20% | 11 h |
| October 20 | 61°F | 46°F | 34% | 20% | 10 h 50 min |
| October 21 | 60°F | 46°F | 34% | 20% | 10 h 50 min |
| October 22 | 60°F | 46°F | 34% | 20% | 10 h 50 min |
| October 23 | 60°F | 45°F | 34% | 20% | 10 h 50 min |
| October 24 | 59°F | 45°F | 34% | 20% | 10 h 40 min |
| October 25 | 59°F | 45°F | 34% | 20% | 10 h 40 min |
| October 26 | 59°F | 44°F | 34% | 20% | 10 h 40 min |
| October 27 | 58°F | 44°F | 34% | 20% | 10 h 40 min |
| October 28 | 58°F | 44°F | 34% | 20% | 10 h 30 min |
| October 29 | 58°F | 43°F | 34% | 20% | 10 h 30 min |
| October 30 | 57°F | 43°F | 34% | 20% | 10 h 30 min |
| October 31 | 57°F | 43°F | 34% | 20% | 10 h 30 min |
- Normal high
- 62°FOctober average
- Normal low
- 48°FOctober average
- Precipitation
- 4.03 inmonth total
- Days with precipitation
- 110.01 inch or more
- Snowfall
- 0.2 inmonth total
- Daylight
- 11 h 50 min to 10 h 30 minOctober 1 to October 31
- Days at 70°F or more
- 6
- Days at 80°F or more
- 1
- Sunshine
- 68%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014739; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Boston in October?
On a given October day the chance of 0.01 inch or more is 33% on average, highest around October 30 (34%). In all, 4.03 in falls on 11 days of a normal October, 1 of them with an inch or more.
In a normal October in Boston, snowfall averages 0.2 inches.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014739.
How humid and windy is Boston in October?
At 3 p.m. the normal temperature is 55°F with 55% relative humidity and a dew point of 39°F; at 6 a.m. it is 46°F with 74% humidity. The wind averages 11.4 mph, most often from the west in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 46°F | 38°F | 74% | 10.4 mph | 42% |
| 9 a.m. | 50°F | 39°F | 66% | 11.5 mph | 35% |
| noon | 54°F | 39°F | 56% | 12.6 mph | 30% |
| 3 p.m. | 55°F | 39°F | 55% | 13.3 mph | – |
| 6 p.m. | 52°F | 39°F | 62% | 11.5 mph | 34% |
| 9 p.m. | 50°F | 39°F | 67% | 11.1 mph | 40% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00014739. 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 Boston?
The warmest October temperature on Boston's official record (since 1872) is 90°F, on October 1, 1881; the coldest is 25°F, on October 26, 1879. The wettest October brought 10.66 in (1996); the snowiest, 4.3 inches (2020).
The October mean against the 1991-2020 normal of 54.8°F: 2021 59.9°F (+5.1), 2022 56.6°F (+1.8), 2023 59.2°F (+4.4), 2024 56.5°F (+1.7), 2025 56.4°F (+1.6). 5 of 5 ran warmer than normal.
| October | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 59.9°F | +5.1°F | 5.11 in |
| 2022 | 56.6°F | +1.8°F | 4.28 in |
| 2023 | 59.2°F | +4.4°F | 1.42 in |
| 2024 | 56.5°F | +1.7°F | 0.91 in |
| 2025 | 56.4°F | +1.6°F | 4.96 in |
Source: records: ACIS, NWS threaded record BOSthr; recent months: ACIS, station USW00014739. Records and recent months use complete months only.
How does October in Boston compare across Massachusetts?
Across the 35 places PlainClimate covers in Massachusetts, October normal highs run from 58°F in Pittsfield to 66°F in Norwood; Boston's is 62°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.