September weather forecast
Grand Meadow, MN

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Weather in September

September marks the beginning of fall in Grand Meadow, Minnesota as the weather starts its transition from summer warmth to autumnal coolness. September is characterized by a sharp decline in temperature, with highs dropping down to 70.7°F (21.5°C). The precipitating foliage colors make for a beautiful backdrop all over the city. The humidity levels drop slightly, giving way to drier weather. The onsetting fall season brings forth vivid hues and a crispy feel to the air.

Temperature

The beginning of September brings a minor change in the average high-temperature, shifting from a moderately hot 76.6°F (24.8°C) in August to an agreeable 70.7°F (21.5°C). September in Grand Meadow sees the temperature falling to a mean low of 52°F (11.1°C).

Humidity

In Grand Meadow, the average relative humidity in September is 79%.

Rainfall

In Grand Meadow, in September, it is raining for 9.5 days, with typically 1.3" (33mm) of accumulated precipitation. In Grand Meadow, during the entire year, the rain falls for 109.7 days and collects up to 16.57" (421mm) of precipitation.

Snowfall

In Grand Meadow, snow does not fall in June through September.

Daylight

In Grand Meadow, the average length of the day in September is 12h and 29min.
On the first day of September in Grand Meadow, sunrise is at 6:34 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:52 pm CDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In Grand Meadow, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 4 in September transforms into this advice:
Act with care - The need to guard against sun damage is communicated. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

What are September temperatures in Grand Meadow?

The high-temperature in Grand Meadow during September is 70.7°F (21.5°C) and the low-temperature is 52°F (11.1°C).

What is the average humidity in September in Grand Meadow?

In September, the average relative humidity is 79%.

How many days does it rain in September in Grand Meadow?

In Grand Meadow, in September, during 9.5 rainfall days, 1.3" (33mm) of precipitation is typically accumulated.

When it does not snow in Grand Meadow?

In Grand Meadow, Minnesota, snow does not fall in June through September.

Does it snow in Grand Meadow in September?

In Grand Meadow, Minnesota, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Grand Meadow?

The average day length in September in Grand Meadow, Minnesota, is 12h and 29min.

When is the sunrise / sunset in September in Grand Meadow?

On the first day of September, sunrise is at 6:34 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:52 pm CDT.

How long on average sun shines in September in Grand Meadow?

In September, the average sunshine duration in Grand Meadow is 8.6h.

How high is the UV index in September in Grand Meadow?

In September, the average daily maximum UV index in Grand Meadow is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Grand Meadow, MN

Average temperature in September - Grand Meadow, MN
  • Average high temperature in September: 70.7°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (20.7°F).

  • Average low temperature in September: 52°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).

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Average pressure in September
Grand Meadow, MN

Average pressure in September - Grand Meadow, MN
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in September
Grand Meadow, MN

Average wind speed in September - Grand Meadow, MN
  • Average wind speed in September: 8.6mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).

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Average humidity in September
Grand Meadow, MN

Average humidity in September - Grand Meadow, MN
  • Average humidity in September: 79%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in September
Grand Meadow, MN

Average rainfall in September - Grand Meadow, MN
  • Average rainfall in September: 1.3"

The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in September
Grand Meadow, MN

Average rainfall days in September - Grand Meadow, MN
  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is February (2.3 days).

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Average snowfall in September
Grand Meadow, MN

Average snowfall in September - Grand Meadow, MN
  • Average snowfall in September: 0"

The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Grand Meadow, MN

Average snowfall days in September - Grand Meadow, MN
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Grand Meadow, MN

Average daylight in September / Average sunshine in September - Grand Meadow, MN
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in September
Grand Meadow, MN

Average sunshine days in September - Grand Meadow, MN
  • Average sunshine days in September: 17.9 days

The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (11.2 days).

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Average UV index in September
Grand Meadow, MN

Average UV index in September - Grand Meadow, 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).

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Average cloud cover in September
Grand Meadow, MN

Average cloud cover in September - Grand Meadow, MN
  • Average cloud cover in September: 36

The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in September
Grand Meadow, MN

Average visibility in September - Grand Meadow, 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).

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Grand Meadow, Minnesota, USA

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