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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a moderately hot 78.4°F (25.8°C) to a pleasant 72.5°F (22.5°C). In Saint Peter, an average low-temperature of 52.7°F (11.5°C) is recorded during September nights.Humidity
In September, the average relative humidity in Saint Peter is 75%.Rainfall
In Saint Peter, in September, it is raining for 11.5 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, there are 123.2 rainfall days, and 22.28" (566mm) of precipitation is accumulated.Snowfall
In Saint Peter, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 30min.On the first day of September, sunrise is at 6:39 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 6:57 pm CDT.
Sunshine
In September, the average sunshine in Saint Peter, Minnesota, is 8.9h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 4 translates into these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Saint Peter?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Saint Peter have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September in Saint Peter?
Average temperature in September
Saint Peter, MN
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (21.2°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).
Average pressure in September
Saint Peter, MN
- Average pressure in September: 30"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Saint Peter, MN
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in September
Saint Peter, MN
- Average humidity in September: 75%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and October (70%).
Average rainfall in September
Saint Peter, MN
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is June (3.5").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in September
Saint Peter, MN
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is June (18.1 days).
The month with the least rainy days is February (2.2 days).
Average snowfall in September
Saint Peter, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Saint Peter, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint Peter, MN
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Saint Peter, MN
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is June (9.9 days).
Average UV index in September
Saint Peter, MN
- 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, November and December (UV index 1).
Average cloud cover in September
Saint Peter, MN
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Saint Peter, MN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Saint Peter, Minnesota, USA
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