September weather forecast and climate
Delmar, NY

Weather in September

The first month of the autumn, September, is still a pleasant month in Delmar, New York, with temperature in the range of an average low of 51.3°F (10.7°C) and an average high of 71.4°F (21.9°C).

Temperature

In Delmar, the average high-temperature marginally drops, from a warm 79.2°F (26.2°C) in August, to an agreeable 71.4°F (21.9°C). In September, the average low-temperature is 51.3°F (10.7°C).

Humidity

In September, the average relative humidity is 78%.

Rainfall

The month with the least rainfall in Delmar is September when the rain falls for 11.4 days and typically collects 2.05" (52mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day in Delmar is 12.5h.

Sunshine

In September, the average sunshine is 9h.

UV index

The average daily maximum UV index in Delmar is 3. A UV Index reading of 3 to 5 represents a moderate health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 3 in September interpret into the following advice:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the average humidity in September in Delmar?

The average relative humidity in September in Delmar is 78%.

What is the driest month in Delmar?

September is the month with the least rainfall in Delmar, New York. Rain falls for 11.4 days and accumulates 2.05" (52mm) of precipitation.

How much does it rain in Delmar in September?

In September, in Delmar, the rain falls for 11.4 days. Throughout September, 2.05" (52mm) of precipitation is accumulated.

When it does not snow in Delmar?

June through September are months without snowfall.

Does it snow in Delmar in September?

In Delmar, New York, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Delmar have in September?

In Delmar, the average length of the day in September is 12.5h.

How many hours of sunshine does Delmar have in September?

The average sunshine in September in Delmar is 9h.

How high is the UV index in September in Delmar?

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

Average temperature in September
Delmar, NY

Average temperature in September - Delmar, NY
  • Average high temperature in September: 71.4°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in September: 51.3°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

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Average pressure in September
Delmar, NY

Average pressure in September - Delmar, NY
  • Average pressure in September: 30.06"

The month with the highest atmospheric pressure is November (30.09").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in September
Delmar, NY

Average wind speed in September - Delmar, NY
  • Average wind speed in September: 5.5mph

The windiest months (with the highest average wind speed) are January and February (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in September
Delmar, NY

Average humidity in September - Delmar, NY
  • Average humidity in September: 78%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (74%).

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Average rainfall in September
Delmar, NY

Average rainfall in September - Delmar, NY
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is September (2.05").

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Average rainfall days in September
Delmar, NY

Average rainfall days in September - Delmar, NY
  • Average rainfall days in September: 11.4 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (8.3 days).

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Average snowfall in September
Delmar, NY

Average snowfall in September - Delmar, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is January (8.15").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Delmar, NY

Average snowfall days in September - Delmar, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (13.8 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
Delmar, NY

Average daylight in September / Average sunshine in September - Delmar, NY
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in September: 9h

The month with the most sunshine is July (Average sunshine: 10.4h).
The month with the least sunshine is February (Average sunshine: 3.8h).

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Average sunshine days in September
Delmar, NY

Average sunshine days in September - Delmar, NY
  • Average sunshine days in September: 16.7 days

The month with the most sunshine days is September (16.7 days).
Months with the least sunshine days are February and April (11.3 days).

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Average UV index in September
Delmar, NY

Average UV index in September - Delmar, NY
  • Average UV index in September: 3

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
Delmar, NY

Average cloud cover in September - Delmar, NY
  • Average cloud cover in September: 35

The month with the most cloud cover is February (Cloud cover 58).
Months with the least cloud cover are July and August (Cloud cover 33).

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Average visibility in September
Delmar, NY

Average visibility in September - Delmar, NY
  • Average visibility in September: 5mi

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

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