September weather forecast and climate
Naponee, NE

September, the first month of the autumn, in Naponee, is still a warm month, with average temperature varying between 81°F (27.2°C) and 59.9°F (15.5°C).

Temperature

In Naponee, the average high-temperature in September slightly decreases, from a hot 89.1°F (31.7°C) in August, to a warm 81°F (27.2°C). The average low-temperature, in September, is 59.9°F (15.5°C).

Heat index

The average heat index is evaluated at 82.9°F (28.3°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, differences in body mass, height, and shape, pregnancy, and wind affect individual temperature impact. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Naponee, the average relative humidity in September is 59%.

Rainfall

In Naponee, during 11.1 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, there are 115.9 rainfall days, and 19.25" (489mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

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

Sunshine

The average sunshine in Naponee is 8.9h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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.

What is the temperature in September in Naponee?

In Naponee, in September, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 59.9°F (15.5°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), that takes the relative humidity and factores it into the air temperature reading, is evaluated at 82.9°F (28.3°C).

What is the average humidity in September in Naponee?

In Naponee, the average relative humidity in September is 59%.

How much does it rain in Naponee in September?

In Naponee, in September, during 11.1 rainfall days, 1.34" (34mm) of precipitation is typically accumulated.

Does it snow in Naponee in September?

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

When it does not snow in Naponee?

In Naponee snow does not fall in June through September.

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

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

How long on average sun shines in September in Naponee?

In September, the average sunshine is 8.9h.

How high is the UV index in September in Naponee?

In September, the average daily maximum UV index in Naponee, Nebraska, is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to the UV radiation.
Average temperature in September - Naponee, NE
  • Average high temperature in September: 81°F

The warmest month (with the highest average high temperature) is July (92.1°F).
The month with the lowest average high temperature is January (39.2°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

Average pressure in September - Naponee, NE
  • Average pressure in September: 29.97"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.84").

Average wind speed in September - Naponee, NE
  • Average wind speed in September: 10.2mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (9.1mph).

Average humidity in September - Naponee, NE
  • Average humidity in September: 59%

The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is July (56%).

Average rainfall in September - Naponee, NE
  • Average rainfall in September: 1.34"

The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in September - Naponee, NE
  • Average rainfall days in September: 11.1 days

The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (3.7 days).

Average snowfall in September - Naponee, NE
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.64").
Months with the least snowfall are June, July, August and September (0").

Average snowfall days in September - Naponee, NE
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (6.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September / Average sunshine in September - Naponee, NE
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in September: 8.9h

The month with the most sunshine is June (Average sunshine: 11.3h).
Months with the least sunshine are January and December (Average sunshine: 6.1).

Average sunshine days in September - Naponee, NE
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is December (23 days).
The month with the least sunshine days is May (12.2 days).

Average UV index in September - Naponee, NE
  • Average UV index in September: 5

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in September - Naponee, NE
  • Average cloud cover in September: 23

The month with the most cloud cover is February (Cloud cover 36).
Months with the least cloud cover are June and July (Cloud cover 21).

Average visibility in September - Naponee, NE
  • Average visibility in September: 6mi

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