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October Weather in Grafton, United States

Last updated: June 24, 2025

In Grafton, United States, the average temperature in October hovers around 15°C (59°F). However, temperatures can fluctuate dramatically, with minimums dropping to -4°C (25°F) and maximums peaking at 33°C (91°F). Expect 100 mm (3.9 in) of precipitation over approximately 11 days, contributing to an average humidity level of 76%. Prepare accordingly for this diverse climate!

October Temperature in Grafton

In October in Grafton, the average temperature is 15°C (59°F), with maximums reaching up to 33°C (91°F) and minimums dropping as low as -4°C (25°F). It's advisable to pack layers to prepare for the wide temperature fluctuations while you explore.

October Weather in Grafton: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Grafton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grafton, October typically has an average temperature of 15°C (59°F), with highs reaching up to 33°C (91°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec313446546776797672584438
Data source: Temperature data for Grafton generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Grafton

In Grafton in October, the precipitation amount is 100 mm (3.9 in) over the course of 11 days.

October Precipitation Trends in Grafton

The chart displays monthly precipitation patterns in Grafton, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Grafton, October typically receives around 100 mm (3.9 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec70771311191479394123661006651
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Grafton

In Grafton in October humidity is 76%. With an average temperature of 15°C (59°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities less enjoyable and often leading to a quick sense of fatigue while traveling.

October Average Humidity in Grafton

This chart illustrates the average monthly humidity levels in Grafton, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Grafton is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Grafton

In Grafton in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Grafton, you can refer to this Hourly UV Index in Grafton.

Maximum UV Index Levels in Grafton for October

The chart shows the monthly maximum UV Index (UVI) for Grafton in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Grafton typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356910111199643
Data source: Grafton October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How October Weather in Grafton Compares to Other Months

Weather in Grafton varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Grafton, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Grafton, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)70 mm (2.8 inches)82%moderate
February Weather1°C (34°F)77 mm (3.0 inches)80%moderate
March Weather8°C (46°F)131 mm (5.1 inches)80%high
April Weather12°C (55°F)119 mm (4.7 inches)80%very high
May Weather19°C (67°F)147 mm (5.8 inches)82%very high
June Weather25°C (76°F)93 mm (3.6 inches)83%extreme
July Weather26°C (79°F)94 mm (3.7 inches)81%extreme
August Weather24°C (76°F)123 mm (4.9 inches)80%very high
September Weather22°C (72°F)66 mm (2.6 inches)76%very high
October Weather15°C (59°F)100 mm (3.9 inches)76%high
November Weather6°C (44°F)66 mm (2.6 inches)85%moderate
December Weather3°C (38°F)51 mm (2.0 inches)86%moderate

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