September weather forecastOlivia, MN
September
Weather in September
September, the first month of the autumn in Olivia, is also an agreeable month, with an average temperature fluctuating between 52.7°F (11.5°C) and 72.5°F (22.5°C).Temperature
As September arrives, Olivia's weather displays a minor decrease in high-temperatures, transitioning from August's moderately hot 78.6°F (25.9°C) to an agreeable 72.5°F (22.5°C). In September, Olivia encounters an average low-temperature of 52.7°F (11.5°C) during the night.Humidity
In September, the average relative humidity is 72%.Rainfall
In Olivia, in September, it is raining for 10.5 days, with typically 1.57" (40mm) of accumulated precipitation. Throughout the year, there are 116.8 rainfall days, and 21.65" (550mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Olivia, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:43 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:01 pm CDT.
Sunshine
In September, the average sunshine is 9h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Olivia, MN
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).
Average pressure in September
Olivia, MN
- Average pressure in September: 29.99"Hg
The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Olivia, MN
- Average wind speed in September: 8.6mph
The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (7.2mph).
Average humidity in September
Olivia, MN
- Average humidity in September: 72%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is May (67%).
Average rainfall in September
Olivia, MN
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is June (3.43").
The driest months (with the least rainfall) are January and February (0.67").
Average rainfall days in September
Olivia, MN
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is June (17.1 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in September
Olivia, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Olivia, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Olivia, MN
- Average daylight in September: 12h and 30min
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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Olivia, MN
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in September
Olivia, 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
Olivia, MN
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in September
Olivia, 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 months with the lowest visibility are January, February and December (5mi).
