Oshkosh
Wisconsin, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Oshkosh, WI

A scenic shot of a beautiful nature park with many trees and neat lawns next to a calm pond, in Oshkosh, Wisconsin
A scenic shot of a beautiful nature park with many trees and neat lawns next to a calm pond, in Oshkosh, Wisconsin
The first month of the autumn, September, is still a pleasant month in Oshkosh, Wisconsin, with average temperature ranging between max 72.3°F (22.4°C) and min 51.3°F (10.7°C).

Temperature

In September, the average high-temperature marginally drops, from a warm 80.4°F (26.9°C) in August, to a pleasant 72.3°F (22.4°C). The average low-temperature, in September, is 51.3°F (10.7°C).

Rainfall

In September, the rain falls for 9 days. Throughout September, 3.3" (84.3mm) of precipitation is accumulated. In Oshkosh, during the entire year, the rain falls for 105 days and collects up to 29.7" (755.2mm) of precipitation.

Snowfall

In Oshkosh, in September, it doesn't snow. In October, it regularly snows. Throughout the year, 41.8" (1061.8mm) of snow is accumulated.

Daylight

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

Sunshine

In Oshkosh, the average sunshine in September is 7h.

UV index

In Oshkosh, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to the Sun's UV rays for the ordinary person.
The average daily UV index of 5 in September transform into the following instructions:
Take precautions - Protection against sunburn is recommended. 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 Oshkosh?

In Oshkosh, in September, the average high-temperature is 72.3°F (22.4°C), and the average low-temperature is 51.3°F (10.7°C).

How much does it rain in Oshkosh in September?

In Oshkosh, during September, the rain falls for 9 days and regularly aggregates up to 3.3" (84.3mm) of precipitation.

Does it snow in Oshkosh in September?

In Oshkosh, Wisconsin, in September, it doesn't snow. In October, it regularly snows.

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

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

How many hours of sunshine does Oshkosh have in September?

In September, the average sunshine is 7h.

What is the UV index reading in September in Oshkosh?

In September, the average daily maximum UV index in Oshkosh is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from the exposure to the Sun's UV radiation.
Average temperature in September - Oshkosh, WI
  • Average high temperature in September: 72.3°F

The warmest month (with the highest average high temperature) is July (82.7°F).
The month with the lowest average high temperature is January (25.7°F).

  • Average low temperature in September: 51.3°F

The month with the highest average low temperature is July (61.1°F).
The coldest month (with the lowest average low temperature) is January (8.7°F).

Average rainfall in September - Oshkosh, WI
  • Average rainfall in September: 3.3"

The wettest month (with the highest rainfall) is June (3.9").
The driest month (with the lowest rainfall) is February (1.1").

Average rainfall days in September - Oshkosh, WI
  • Average rainfall days in September: 9 days

The month with the highest number of rainy days is May (11 days).
The month with the lowest number of rainy days is February (7 days).

Average snowfall in September - Oshkosh, WI
  • Average snowfall in September: 0"

The month with the highest snowfall is January (10.5").
Months with the lowest snowfall are June, July, August and September (0").

Average daylight in September / Average sunshine in September - Oshkosh, WI
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.4h).
The month with shortest days is December (Average daylight: 9h).

  • Average sunshine in September: 7h

Months with most sunshine are June and July (Average sunshine: 10h).
Months with least sunshine are November and December (Average sunshine: 4).

Average UV index in September - Oshkosh, WI
  • Average UV index in September: 5

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).