September weather forecast
Lancaster, OH

Weather in September

The first month of the autumn, September, is also a moderately hot month in Lancaster, Ohio, with temperature in the range of an average high of 75.9°F (24.4°C) and an average low of 56.3°F (13.5°C).

Temperature

In Lancaster, the average high-temperature slightly decreases, from 81.7°F (27.6°C) in August, to a still moderately hot 75.9°F (24.4°C). The average low-temperature, in September, is 56.3°F (13.5°C).

Humidity

The average relative humidity is 77%.

Rainfall

The month with the least rainfall in Lancaster is September when the rain falls for 11.8 days and typically collects 1.22" (31mm) of precipitation.

Snowfall

In Lancaster snow does not fall in May through September.

Daylight

In September, the average length of the day in Lancaster is 12.4h.

Sunshine

In Lancaster, the average sunshine is 8.3h.

UV index

In Lancaster, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from the exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 4 in September interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the average humidity in September in Lancaster?

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

What is the driest month in Lancaster?

September is the month with the least rainfall in Lancaster. Rain falls for 11.8 days and accumulates 1.22" (31mm) of precipitation.

How many days does it rain in September in Lancaster?

In September, in Lancaster, Ohio, the rain falls for 11.8 days. Throughout September, 1.22" (31mm) of precipitation is accumulated.

When it does not snow in Lancaster?

In Lancaster snow does not fall in May through September.

Does it snow in Lancaster in September?

In Lancaster, Ohio, in September, it doesn't snow. In October, it regularly snows.

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

The average length of the day in September is 12.4h.

How long on average sun shines in September in Lancaster?

In September, the average sunshine in Lancaster, Ohio, is 8.3h.

What is the UV index reading in September in Lancaster?

The average daily maximum UV index in September in Lancaster is 4. A UV Index value of 3 to 5 symbolizes a medium hazard to health from the exposure to the Sun's UV rays.

Average temperature in September
Lancaster, OH

Average temperature in September - Lancaster, OH
  • Average high temperature in September: 75.9°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in September
Lancaster, OH

Average pressure in September - Lancaster, OH
  • Average pressure in September: 30.04"

Months with the highest atmospheric pressure are January and November (30.14").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in September
Lancaster, OH

Average wind speed in September - Lancaster, OH
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is January (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in September
Lancaster, OH

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

Months with the highest relative humidity are January and February (83%).
Months with the lowest relative humidity are April and November (76%).

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Average rainfall in September
Lancaster, OH

Average rainfall in September - Lancaster, OH
  • Average rainfall in September: 1.22"

The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is September (1.22").

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Average rainfall days in September
Lancaster, OH

Average rainfall days in September - Lancaster, OH
  • Average rainfall days in September: 11.8 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is November (8.3 days).

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Average snowfall in September
Lancaster, OH

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

The month with the highest snowfall is February (2.24").
Months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Lancaster, OH

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

The month with the highest number of snowfall days is January (12.1 days).
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
Lancaster, OH

Average daylight in September / Average sunshine in September - Lancaster, OH
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 8.3h

The month with the most sunshine is August (Average sunshine: 10.5h).
The month with the least sunshine is January (Average sunshine: 3.6h).

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Average sunshine days in September
Lancaster, OH

Average sunshine days in September - Lancaster, OH
  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is November (19.1 days).
The month with the least sunshine days is July (10.9 days).

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Average UV index in September
Lancaster, OH

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

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

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Average cloud cover in September
Lancaster, OH

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

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in September
Lancaster, OH

Average visibility in September - Lancaster, OH
  • Average visibility in September: 5mi

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

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