Onset climate

Onset Weather in October

NOAA 1991-2020 normals for E Wareham, 2.8 km from Onset

Average highs run from 68°F on October 1 to 58°F on October 31, and lows from 50°F to 39°F. Normal precipitation for the month is 4.98 in over about 11 wet days.

October day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Onset, in °F, with the record for each date.20406080151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
63°F
Average low
44°F
Precipitation
4.98 in
Record high
79°FOct 6, 2025
Record low
26°FOct 26, 2018
Chance of a freeze
71%
Daylight
11 h 44 min to 10 h 24 min
Cloud cover
57%
Humidity
78%
Dew point
50°F
Wind
14.8 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Oct 168°F50°F73°F 201143°F 202133%0%
Oct 268°F49°F71°F 201142°F 202133%0%
Oct 367°F49°F76°F 201338°F 202534%0%
Oct 467°F48°F73°F 201338°F 202534%0%
Oct 567°F48°F75°F 202544°F 202034%0%
Oct 666°F48°F79°F 202535°F 201434%0%
Oct 766°F47°F75°F 202535°F 201434%0%
Oct 866°F47°F75°F 201939°F 201134%0%
Oct 965°F47°F73°F 201735°F 202035%0%
Oct 1065°F46°F79°F 201133°F 202535%0%
Oct 1165°F46°F79°F 201135°F 202535%0%
Oct 1264°F46°F76°F 201836°F 201435%0%
Oct 1364°F45°F71°F 202432°F 201235%0%
Oct 1464°F45°F70°F 202132°F 201235%0%
Oct 1563°F45°F72°F 201432°F 201635%0%
Oct 1663°F44°F76°F 201433°F 201635%0%
Oct 1763°F44°F73°F 201435°F 201535%0%
Oct 1862°F44°F72°F 201632°F 202035%0%
Oct 1962°F43°F75°F 201630°F 201535%0%
Oct 2062°F43°F73°F 201630°F 201535%0%
Oct 2161°F43°F70°F 201133°F 201935%0%
Oct 2261°F42°F76°F 202427°F 201835%0%
Oct 2361°F42°F75°F 202427°F 201835%0%
Oct 2460°F42°F72°F 202433°F 201135%0%
Oct 2560°F41°F71°F 201733°F 201334%0%
Oct 2660°F41°F69°F 202126°F 201834%0%
Oct 2759°F41°F74°F 202326°F 201834%1%
Oct 2859°F40°F68°F 202329°F 201334%1%
Oct 2959°F40°F75°F 202328°F 202434%1%
Oct 3058°F40°F70°F 201430°F 201334%1%
Oct 3158°F39°F68°F 202426°F 201134%1%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Onset, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

October 1
sunrise 6:40 AM, sunset 6:24 PM
October 31
sunrise 7:14 AM, sunset 5:38 PM

Every day of October: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00192451 (E Wareham), public domain. Records: NOAA GHCN-Daily, station USC00192372, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.