September weather forecastRichmond, MN
September
Weather in September
September, the first month of the autumn in Richmond, is also an agreeable month, with an average temperature ranging between max 70.9°F (21.6°C) and min 50.9°F (10.5°C).Temperature
In Richmond, entering September brings a subtle temperature decrement, reducing from August's warm 78.6°F (25.9°C) to an agreeable 70.9°F (21.6°C). Richmond records an average temperature drop to a cool 50.9°F (10.5°C) in September.Humidity
In Richmond, the average relative humidity in September is 74%.Rainfall
In Richmond, during September, the rain falls for 9.3 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Richmond, during the entire year, the rain falls for 109.6 days and collects up to 17.52" (445mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In Richmond, Minnesota, the average length of the day in September is 12h and 31min.On the first day of September in Richmond, sunrise is at 6:40 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 6:59 pm CDT.
Sunshine
In September, the average sunshine in Richmond is 8.7h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Richmond, MN
- Average high temperature in September: 70.9°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (18.7°F).
- Average low temperature in September: 50.9°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in September
Richmond, MN
- Average pressure in September: 29.99"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Richmond, MN
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in September
Richmond, MN
- Average humidity in September: 74%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (70%).
Average rainfall in September
Richmond, MN
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Richmond, MN
- Average rainfall days in September: 9.3 days
The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is January (2.2 days).
Average snowfall in September
Richmond, MN
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Richmond, MN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Richmond, MN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Richmond, MN
- Average sunshine days in September: 19.2 days
The month with the most sunshine days is September (19.2 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in September
Richmond, MN
- Average UV index in September: 4
The month with the highest UV index is 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
Richmond, MN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 67).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in September
Richmond, MN
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
