September weather forecast
Parma, OH

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Weather in September

September bids farewell to the sizzling summer and begins the transitional journey towards fall in Parma. Gently dipping temperatures, along with a few more instances of rainfall, mark a noticeable shift from the hot and dry summer days. Despite the subtle change of weather pattern, daylight hours remain plentiful, allowing ample time for outdoor pursuits. The receding heat is evidenced by a significantly lower minimum temperature, which settles at 59°F (15°C).

Temperature

September ushers in a minor alteration in Parma's climate, with the average high-temperature moving from August's warm 78.4°F (25.8°C) to a pleasant 72.3°F (22.4°C). September nights in Parma are marked by an average low-temperature of 59°F (15°C).

Humidity

In Parma, the average relative humidity in September is 76%.

Rainfall

In September, the rain falls for 9.3 days. Throughout September, 0.51" (13mm) of precipitation is accumulated. Throughout the year, in Parma, Ohio, there are 109.1 rainfall days, and 8.43" (214mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Parma, Ohio.

Daylight

In Parma, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:53 am and sunset at 7:59 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:09 pm EDT.

Sunshine

The average sunshine in September in Parma is 8.4h.

UV index

The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In September, an average UV index of 4 transforms into the following instructions:
Make use of precautions - It is urged to ward off sun damage. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

What is the usual temperature for Parma in September?

An average high-temperature, in September, in Parma, is 72.3°F (22.4°C) and the average low-temperature is 59°F (15°C).

What is the average humidity in September in Parma?

In September, the average relative humidity in Parma is 76%.

How much does it rain in Parma in September?

In Parma, Ohio, during September, the rain falls for 9.3 days and regularly aggregates up to 0.51" (13mm) of precipitation.

When it does not snow in Parma?

May through October are months without snowfall in Parma, Ohio.

What is the average length of the day in September in Parma?

In September, the average day length in Parma, Ohio, is 12h and 28min.

When is the sunrise / sunset in September in Parma?

On the first day of September in Parma, Ohio, sunrise is at 6:53 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:09 pm EDT.

How long on average sun shines in September in Parma?

The average sunshine duration in September in Parma, Ohio, is 8.4h.

How high is the UV index in September in Parma?

The average daily maximum UV index in September in Parma, Ohio, 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
Parma, OH

Average temperature in September - Parma, OH
  • Average high temperature in September: 72.3°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (31.3°F).

  • Average low temperature in September: 59°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

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Average pressure in September
Parma, OH

Average pressure in September - Parma, 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
Parma, OH

Average wind speed in September - Parma, OH
  • Average wind speed in September: 7.5mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

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Average humidity in September
Parma, OH

Average humidity in September - Parma, OH
  • Average humidity in September: 76%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).

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Average rainfall in September
Parma, OH

Average rainfall in September - Parma, OH
  • Average rainfall in September: 0.51"

The wettest month (with the highest rainfall) is May (1.06").
The driest months (with the least rainfall) are February and November (0.47").

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Average rainfall days in September
Parma, OH

Average rainfall days in September - Parma, OH
  • Average rainfall days in September: 9.3 days

The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is February (4.4 days).

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Average snowfall in September
Parma, OH

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

The month with the highest snowfall is February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Parma, OH

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

The month with the highest number of snowfall days is February (8.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Parma, 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 August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

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Average sunshine days in September
Parma, OH

Average sunshine days in September - Parma, OH
  • Average sunshine days in September: 17.9 days

The month with the most sunshine days is December (21.2 days).
The month with the least sunshine days is May (13.3 days).

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Average UV index in September
Parma, OH

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

The month with the highest UV index is 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
Parma, OH

Average cloud cover in September - Parma, OH
  • Average cloud cover in September: 34

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in September
Parma, OH

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

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

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Parma, Ohio, USA

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