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 signals a subtle shift in temperature, down from a warm 82.9°F (28.3°C) in August to a still moderately hot 76.5°F (24.7°C). September witnesses an average low-temperature hovering around a refreshing 55.4°F (13°C).Humidity
The average relative humidity in September is 67%.Rainfall
In Petersburg, in September, during 9.5 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Petersburg, during the entire year, the rain falls for 108.8 days and collects up to 18.98" (482mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Petersburg, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:58 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:15 pm CDT.
Sunshine
In September, the average sunshine in Petersburg is 8.6h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 5 in September translates into these instructions:
Act with care - The need to guard against sun damage is communicated. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in Petersburg in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Petersburg, NE
- Average high temperature in September: 76.5°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in September
Petersburg, NE
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Petersburg, NE
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in September
Petersburg, NE
- Average humidity in September: 67%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (63%).
Average rainfall in September
Petersburg, NE
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are January and February (0.55").
Average rainfall days in September
Petersburg, NE
- Average rainfall days in September: 9.5 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in September
Petersburg, NE
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Petersburg, NE
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Petersburg, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Petersburg, NE
- Average sunshine days in September: 19 days
The month with the most sunshine days is November (23.2 days).
The month with the least sunshine days is June (12.8 days).
Average UV index in September
Petersburg, NE
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Petersburg, NE
- Average cloud cover in September: 27
The month with the most cloud cover is January (Cloud cover 47).
The months with the least cloud cover are July and September (Cloud cover 27).
Average visibility in September
Petersburg, 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).
Petersburg, Nebraska, USA
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