September weather forecast
Amherst, OH

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An ancient building in the city of Amherst, Ohio, also serving as the historic City Hall and one of the popular tourist spots
An ancient building in the city of Amherst, Ohio, also serving as the historic City Hall and one of the popular tourist spots

Weather in September

September is known as the gateway to fall, with temperatures beginning to fall, leaves starting to change, and daylight hours noticeably diminishing in Amherst. Varying from 59.7°F (15.4°C) at the lowest point to 71.6°F (22°C) during the day, temperature changes become clearly evident. The weather undergoes a considerable transformation, marked by reduced daylight hours and declining temperatures. As September concludes and October commences, the fall manifestation becomes even more pronounced, encompassing not just temperature and daylight changes but also evolving landscape colors.

Temperature

A minor adjustment in Amherst's average high-temperature is noted with the start of September, touching a pleasant 71.6°F (22°C) from August's 76.6°F (24.8°C). Amherst's average low-temperature is measured at a refreshing 59.7°F (15.4°C) during September.

Humidity

In September, the average relative humidity is 77%.

Rainfall

In September, in Amherst, Ohio, the rain falls for 14.9 days. Throughout September, 2.24" (57mm) of precipitation is accumulated. In Amherst, during the entire year, the rain falls for 177.7 days and collects up to 33.98" (863mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of September in Amherst, sunrise is at 6:55 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:11 pm EDT.

Sunshine

The average sunshine in September in Amherst is 8.4h.

UV index

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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Frequently asked questions

What is the usual temperature for Amherst in September?

September temperatures vary between a high-temperature of 71.6°F (22°C) and a low-temperature of 59.7°F (15.4°C).

What is the average humidity in September in Amherst?

In September, the average relative humidity in Amherst is 77%.

How many days does it rain in September in Amherst?

In September, in Amherst, Ohio, the rain falls for 14.9 days. Throughout September, 2.24" (57mm) of precipitation is accumulated.

When it does not snow in Amherst?

In Amherst, Ohio, snow does not fall in May through October.

How many hours of daylight does Amherst have in September?

The average day length in September in Amherst is 12h and 28min.

When are sunrise and sunset in September in Amherst?

On the first day of September in Amherst, Ohio, sunrise is at 6:55 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:11 pm EDT.

How many hours of sunshine does Amherst have in September?

In September, the average sunshine duration in Amherst is 8.4h.

How high is the UV index in September in Amherst?

In September, the average daily maximum UV index in Amherst is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
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 September
Amherst, OH

Average temperature in September - Amherst, OH
  • Average high temperature in September: 71.6°F

The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in September: 59.7°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in September
Amherst, OH

Average pressure in September - Amherst, OH
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Amherst, OH

Average wind speed in September - Amherst, OH
  • Average wind speed in September: 8.5mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is July (7mph).

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Average humidity in September
Amherst, OH

Average humidity in September - Amherst, OH
  • Average humidity in September: 77%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is November (75%).

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Average rainfall in September
Amherst, OH

Average rainfall in September - Amherst, OH
  • Average rainfall in September: 2.24"

The wettest month (with the highest rainfall) is June (3.94").
The driest month (with the least rainfall) is February (2.13").

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Average rainfall days in September
Amherst, OH

Average rainfall days in September - Amherst, OH
  • Average rainfall days in September: 14.9 days

The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is January (9.5 days).

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Average snowfall in September
Amherst, OH

Average snowfall in September - Amherst, OH
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.72").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Amherst, OH

Average snowfall days in September - Amherst, OH
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Amherst, OH

Average daylight in September / Average sunshine in September - Amherst, OH
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

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Average sunshine days in September
Amherst, OH

Average sunshine days in September - Amherst, OH
  • Average sunshine days in September: 11.9 days

The month with the most sunshine days is September (11.9 days).
The month with the least sunshine days is February (8.1 days).

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Average UV index in September
Amherst, OH

Average UV index in September - Amherst, OH
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

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Average cloud cover in September
Amherst, OH

Average cloud cover in September - Amherst, OH
  • Average cloud cover in September: 32

The month with the most cloud cover is January (Cloud cover 70).
The months with the least cloud cover are July and August (Cloud cover 27).

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Average visibility in September
Amherst, OH

Average visibility in September - Amherst, OH
  • Average visibility in September: 6mi

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

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Amherst, Ohio, USA

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