September weather forecast and climate
Slingerlands, NY

The first month of the autumn, September, is also an agreeable month in Slingerlands, New York, with average temperature varying between 51.3°F (10.7°C) and 71.4°F (21.9°C).

Temperature

In Slingerlands, the average high-temperature slightly decreases, from a warm 79.2°F (26.2°C) in August, to a pleasant 71.4°F (21.9°C). In September, in Slingerlands, the average low-temperature is 51.3°F (10.7°C).

Humidity

In September, the average relative humidity is 78%.

Rainfall

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

Snowfall

In Slingerlands, New York, snow does not fall in June through September.

Daylight

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

Sunshine

In September, the average sunshine is 9h.

UV index

In Slingerlands, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to the UV radiation for the average person.
Note: In September, the average maximum UV index of 3 translate into the following recommendations:
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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in September in Slingerlands?

The average high-temperature, in September, in Slingerlands, is 71.4°F (21.9°C), while the average low-temperature is 51.3°F (10.7°C).

What is the average humidity in September in Slingerlands?

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

How much does it rain in Slingerlands in September?

In Slingerlands, New York, in September, during 11.4 rainfall days, 2.05" (52mm) of precipitation is typically accumulated.

What is the driest month in Slingerlands?

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

Does it snow in Slingerlands in September?

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

When it does not snow in Slingerlands?

June through September are months without snowfall.

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

The average length of the day in September in Slingerlands is 12.5h.

How long on average sun shines in September in Slingerlands?

In September, the average sunshine in Slingerlands, New York, is 9h.

What is the UV index intensity in September in Slingerlands?

In Slingerlands, New York, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to the Sun's UV rays.
Average temperature in September - Slingerlands, NY
  • Average high temperature in September: 21.9°C

The warmest month (with the highest average high temperature) is July (27.3°C).
The month with the lowest average high temperature is January (-1.8°C).

  • Average low temperature in September: 10.7°C

The month with the highest average low temperature is July (15.3°C).
The coldest month (with the lowest average low temperature) is January (-8.5°C).

Average pressure in September - Slingerlands, NY
  • Average pressure in September: 1017.8mbar

The month with the highest atmospheric pressure is November (1018.9mbar).
The month with the lowest atmospheric pressure is June (1013.3mbar).

Average wind speed in September - Slingerlands, NY
  • Average wind speed in September: 8.8km/h

The windiest month (with the highest average wind speed) is January (13.1km/h).
The calmest month (with the lowest average wind speed) is August (8.3km/h).

Average humidity in September - Slingerlands, 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%).

Average rainfall in September - Slingerlands, NY
  • Average rainfall in September: 52mm

The wettest month (with the highest rainfall) is October (81mm).
The driest month (with the least rainfall) is September (52mm).

Average rainfall days in September - Slingerlands, 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).

Average snowfall in September - Slingerlands, NY
  • Average snowfall in September: 0mm

The month with the highest snowfall is January (207mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in September - Slingerlands, 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).

Average daylight in September / Average sunshine in September - Slingerlands, 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).

Average sunshine days in September - Slingerlands, 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).

Average UV index in September - Slingerlands, 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).

Average cloud cover in September - Slingerlands, 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).

Average visibility in September - Slingerlands, NY
  • Average visibility in September: 8km

Months with the highest visibility are April, June, July, October, November and December (9km).
Months with the lowest visibility are January, February, March, May, August and September (8km).