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October Weather in Hartford, United States

Last updated: June 24, 2025

In Hartford, United States, the average temperature in October hovers around 22°C (72°F). However, temperatures can vary significantly, with a minimum of 2°C (36°F) and soaring to a maximum of 36°C (97°F). Expect a total precipitation of 83 mm (3.3 in) over about 7 days, contributing to an average humidity level of 74%.

October Temperature in Hartford

In October in Hartford, the average temperature is 22°C (72°F). Maximum can reach 36°C (97°F) and minimum can be as low as 2°C (36°F). Be prepared for a wide range of temperatures and pack accordingly for your travels.

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

The chart illustrates October temperature patterns in Hartford, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hartford, October typically has an average temperature of 22°C (72°F), with highs reaching up to 36°C (97°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec525863677580818179725955
Data source: Temperature data for Hartford 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 Hartford

In Hartford in October, the total precipitation amount is 83 mm (3.3 in) over the course of 7 days.

October Precipitation Trends in Hartford

The chart displays monthly precipitation patterns in Hartford, 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 Hartford, October typically receives around 83 mm (3.3 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec90117721081021421321641158343142
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Hartford

In Hartford in October, humidity is 74%. With an average temperature of 22°C (72°F), this humidity feels like a warm blanket enveloping you, making it a bit uncomfortable for traveling, as every step feels heavier and the air is thick.

October Average Humidity in Hartford

This chart illustrates the average monthly humidity levels in Hartford, 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 Hartford is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec83%82%79%77%74%70%78%78%79%74%83%86%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Hartford

In Hartford in October, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Hartford.

Maximum UV Index Levels in Hartford for October

The chart shows the monthly maximum UV Index (UVI) for Hartford 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 Hartford typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111111121110864
Data source: Hartford 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 Hartford Compares to Other Months

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

This table compares monthly weather conditions in Hartford, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather11°C (52°F)90 mm (3.5 inches)83%moderate
February Weather15°C (59°F)117 mm (4.6 inches)82%very high
March Weather17°C (63°F)71 mm (2.8 inches)79%very high
April Weather19°C (67°F)108 mm (4.3 inches)77%extreme
May Weather24°C (75°F)102 mm (4.0 inches)74%extreme
June Weather26°C (80°F)142 mm (5.6 inches)70%extreme
July Weather27°C (81°F)132 mm (5.2 inches)78%extreme
August Weather27°C (81°F)164 mm (6.4 inches)78%extreme
September Weather26°C (79°F)115 mm (4.5 inches)79%very high
October Weather22°C (72°F)83 mm (3.3 inches)74%very high
November Weather15°C (59°F)43 mm (1.7 inches)83%high
December Weather13°C (55°F)142 mm (5.6 inches)86%moderate

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