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 start of September comes with a small reduction in the average high-temperature, subtly receding from a moderately hot 78.8°F (26°C) in August to a pleasant 72.5°F (22.5°C). Throughout September, Walnut Grove experiences a low-temperature average of 53.2°F (11.8°C).Humidity
In Walnut Grove, the average relative humidity in September is 71%.Rainfall
In September, in Walnut Grove, Minnesota, the rain falls for 10.5 days. Throughout September, 1.65" (42mm) of precipitation is accumulated. In Walnut Grove, Minnesota, during the entire year, the rain falls for 110.5 days and collects up to 18.23" (463mm) of precipitation.Snowfall
In Walnut Grove, snow does not fall in June through September.Daylight
In September, the average length of the day in Walnut Grove, Minnesota, is 12h and 30min.On the first day of September, sunrise is at 6:45 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:03 pm CDT.
Sunshine
The average sunshine in September is 9.2h.UV index
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 ordinary individuals.Note: In September, a regular UV index of 4 translates into these guidelines:
Heed the precautions - It is counselled to guard against solar damage. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
What is the temperature in September in Walnut Grove?
What is the average humidity in September in Walnut Grove?
How much does it rain in Walnut Grove in September?
When it does not snow in Walnut Grove?
Does it snow in Walnut Grove in September?
How many hours of daylight does Walnut Grove have in September?
When is the sunrise / sunset in September in Walnut Grove?
How long on average sun shines in September in Walnut Grove?
How high is the UV index in September in Walnut Grove?
Average temperature in September
Walnut Grove, MN
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (20.8°F).
- Average low temperature in September: 53.2°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 (7.7°F).
Average pressure in September
Walnut Grove, MN
- Average pressure in September: 29.99"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Walnut Grove, MN
- Average wind speed in September: 9.3mph
The windiest months (with the highest average wind speed) are February and April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in September
Walnut Grove, MN
- Average humidity in September: 71%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
Walnut Grove, MN
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is June (2.72").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in September
Walnut Grove, MN
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is February (1.7 days).
Average snowfall in September
Walnut Grove, MN
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Walnut Grove, 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
Walnut Grove, 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: 9h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Walnut Grove, MN
- Average sunshine days in September: 18 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is June (10.9 days).
Average UV index in September
Walnut Grove, 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 and November (UV index 1).
Average cloud cover in September
Walnut Grove, MN
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility in September
Walnut Grove, MN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Walnut Grove, Minnesota, USA
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