October weather forecast
Rochester, NH

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Weather in October

October brings a definitive autumn feel to Rochester. The city encounters a change in weather with an average lowest temperature of 44.1°F (6.7°C), marking a significant drop from the temperatures seen in September. The deteriorating weather conditions are highlighted by an increased rainfall from September's 1.5" (38mm) to October's 3.11" (79mm). A decrease in daylight hours adds to the autumn ambiance, as the rapidly changing scenery alerts residents to the forthcoming winter chills.

Temperature

October's arrival in Rochester, New Hampshire, correlates with a reduction in the average high-temperature, down from an agreeable 69.6°F (20.9°C) in September to a mild 57.9°F (14.4°C). Nightly temperatures in Rochester drop to an average low of 44.1°F (6.7°C) in October.

Humidity

The average relative humidity in October is 80%.

Rainfall

The wettest months in Rochester are October and December, with an average 3.11" (79mm) of rainfall.

Snowfall

Months with snowfall in Rochester are January through May, October through December. October is the first month it typically snows in Rochester, New Hampshire. Throughout October, in the average 0.4 snowfall days, it receives 0.08" (2mm) of snow. In Rochester, during the entire year, snow falls for 40 days and aggregates up to 27.8" (706mm) of snow.

Daylight

The average length of the day in October is 11h and 1min.
On the first day of the month, sunrise is at 6:42 am and sunset at 6:24 pm. On the last day of October, in Rochester, sunrise is at 7:18 am and sunset at 5:36 pm EDT.

Sunshine

In Rochester, the average sunshine in October is 5.9h.

UV index

The average daily maximum UV index in October in Rochester is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 3 in October translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

What are October temperatures in Rochester?

The high-temperature, in October, in Rochester, records 57.9°F (14.4°C), while the low-temperature is 44.1°F (6.7°C).

What is the average humidity in October in Rochester?

The average relative humidity in October in Rochester is 80%.

What is the rainiest month in Rochester?

The months with the most rainfall are October and December, with an average 3.11" (79mm) of precipitation.

How many days does it rain in October in Rochester?

In Rochester, New Hampshire, in October, during 12.9 rainfall days, 3.11" (79mm) of precipitation is typically accumulated.

When does it start snowing in Rochester?

October is the first month it typically snows. Throughout October, in the average 0.4 snowfall days, it receives 0.08" (2mm) of snow.

How many hours of daylight does Rochester have in October?

The average day length in October in Rochester is 11h and 1min.

What time are sunrise and sunset in October in Rochester?

On the first day of October, sunrise is at 6:42 am and sunset at 6:24 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 5:36 pm EDT.

How long on average sun shines in October in Rochester?

In October, the average sunshine duration in Rochester is 5.9h.

How high is the UV index in October in Rochester?

In Rochester, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Rochester, NH

Average temperature in October - Rochester, NH
  • Average high temperature in October: 57.9°F

The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in October: 44.1°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).

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Average pressure in October
Rochester, NH

Average pressure in October - Rochester, NH
  • Average pressure in October: 30"Hg

The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in October
Rochester, NH

Average wind speed in October - Rochester, NH
  • Average wind speed in October: 7.3mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

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Average humidity in October
Rochester, NH

Average humidity in October - Rochester, NH
  • Average humidity in October: 80%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is April (75%).

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Average rainfall in October
Rochester, NH

Average rainfall in October - Rochester, NH
  • Average rainfall in October: 3.11"

The wettest months (with the highest rainfall) are October and December (3.11").
The driest month (with the least rainfall) is September (1.5").

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Average rainfall days in October
Rochester, NH

Average rainfall days in October - Rochester, NH
  • Average rainfall days in October: 12.9 days

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall in October
Rochester, NH

Average snowfall in October - Rochester, NH
  • Average snowfall in October: 0.08"

The month with the highest snowfall is December (6.69").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Rochester, NH

Average snowfall days in October - Rochester, NH
  • Average snowfall days in October: 0.4 days

The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Rochester, NH

Average daylight in October / Average sunshine in October - Rochester, NH
  • Average daylight in October: 11h and 0min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in October: 5h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in October
Rochester, NH

Average sunshine days in October - Rochester, NH
  • Average sunshine days in October: 15 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is April (13.3 days).

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Average UV index in October
Rochester, NH

Average UV index in October - Rochester, NH
  • Average UV index in October: 3

The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in October
Rochester, NH

Average cloud cover in October - Rochester, NH
  • Average cloud cover in October: 44

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in October
Rochester, NH

Average visibility in October - Rochester, NH
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).

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Rochester, New Hampshire, USA

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