Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's moderately hot 84°F (28.9°C) to a still warm 75.2°F (24°C). Throughout the month of September, Seneca sees a steady low-temperature average of 55.6°F (13.1°C).Humidity
September is the least humid month in Seneca, with an average relative humidity of 59%.Rainfall
In September, in Seneca, Nebraska, the rain falls for 10.4 days. Throughout September, 1.46" (37mm) of precipitation is accumulated. Throughout the year, in Seneca, Nebraska, there are 103.2 rainfall days, and 17.44" (443mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Seneca. September is the first month it typically snows in Seneca. Throughout September, in the average 0.1 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, there are 39.8 snowfall days, and 13.94" (354mm) of snow is accumulated.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 7:09 am and sunset at 8:16 pm. On the last day of September, in Seneca, sunrise is at 7:40 am and sunset at 7:26 pm CDT.
Sunshine
In Seneca, Nebraska, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
What is the average September temperature in Seneca?
What is the least humid month in Seneca?
What is the average humidity in September in Seneca?
How much does it rain in Seneca in September?
When does it start snowing in Seneca?
How many hours of daylight does Seneca have in September?
When are sunrise and sunset in September in Seneca?
How long on average sun shines in September in Seneca?
How high is the UV index in September in Seneca?
Average temperature in September
Seneca, NE
- Average high temperature in September: 75.2°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Seneca, NE
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Seneca, NE
- Average wind speed in September: 11.7mph
The windiest month (with the highest average wind speed) is April (13.3mph).
The calmest months (with the lowest average wind speed) are July and August (10.7mph).
Average humidity in September
Seneca, NE
- Average humidity in September: 59%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is September (59%).
Average rainfall in September
Seneca, NE
- Average rainfall in September: 1.46"
The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Seneca, NE
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is May (14.8 days).
The months with the least rainy days are February and December (2.3 days).
Average snowfall in September
Seneca, NE
- Average snowfall in September: 0.24"
The month with the highest snowfall is December (2.99").
The months with the least snowfall are June, July and August (0").
Average snowfall days in September
Seneca, NE
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Seneca, NE
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 5h and 12min).
Average sunshine days in September
Seneca, NE
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in September
Seneca, NE
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Seneca, NE
- Average cloud cover in September: 23
The months with the most cloud cover are January and February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Seneca, NE
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Seneca, Nebraska, USA
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