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
Arrival of September comes with a reduction in the average high-temperature, falling from a moderately hot 79.9°F (26.6°C) in August to an agreeable 70°F (21.1°C). Petersburg records an average low of 51.4°F (10.8°C) throughout the nights in September.Humidity
In Petersburg, North Dakota, the average relative humidity in September is 62%.Rainfall
In September, the rain falls for 8.3 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. In Petersburg, during the entire year, the rain falls for 91.5 days and collects up to 15.31" (389mm) of precipitation.Snowfall
June through September are months without snowfall in Petersburg.Daylight
In September, the average length of the day is 12h and 34min.On the first day of September in Petersburg, sunrise is at 6:51 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:12 pm CDT.
Sunshine
The average sunshine in September in Petersburg is 8.7h.UV index
In Petersburg, North Dakota, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Heed the precautions - It is counselled to guard against solar damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What is the usual temperature for Petersburg in September?
What is the average humidity in September in Petersburg?
How much does it rain in Petersburg in September?
When it does not snow in Petersburg?
Does it snow in Petersburg in September?
What is the average length of the day in September in Petersburg?
What time are sunrise and sunset in September in Petersburg?
How long on average sun shines in September in Petersburg?
How high is the UV index in September in Petersburg?
Average temperature in September
Petersburg, ND
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is August (79.9°F).
The month with the lowest average high temperature is January (15.4°F).
- Average low temperature in September: 51.4°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (1.4°F).
Average pressure in September
Petersburg, ND
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Petersburg, ND
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is October (11mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).
Average humidity in September
Petersburg, ND
- Average humidity in September: 62%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Petersburg, ND
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is June (2.99").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in September
Petersburg, ND
- Average rainfall days in September: 8.3 days
The month with the highest number of rainy days is June (16.3 days).
The month with the least rainy days is February (1.2 days).
Average snowfall in September
Petersburg, ND
- Average snowfall in September: 0"
The month with the highest snowfall is December (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Petersburg, ND
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (11.5 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, ND
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Petersburg, ND
- Average sunshine days in September: 20.3 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Petersburg, ND
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in September
Petersburg, ND
- Average cloud cover in September: 29
The months with the most cloud cover are January and February (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Petersburg, ND
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Petersburg, North Dakota, USA
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