September weather forecast and climate
Stirum, ND

Weather in September

September, the first month of the autumn, in Stirum, is also an agreeable month, with average temperature ranging between min 52.3°F (11.3°C) and max 72.7°F (22.6°C).

Temperature

In Stirum, the average high-temperature in September marginally drops, from a warm 81.1°F (27.3°C) in August, to a pleasant 72.7°F (22.6°C). In September, the average low-temperature is 52.3°F (11.3°C).

Humidity

August and September, with an average relative humidity of 62%, are the least humid months in Stirum.

Rainfall

In Stirum, in September, during 9.5 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Stirum, during the entire year, the rain falls for 109.5 days and collects up to 20.39" (518mm) of precipitation.

Snowfall

In Stirum, North Dakota, snow does not fall in June through September.

Daylight

In September, the average length of the day in Stirum is 12.5h.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In Stirum, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The average daily UV index of 4 in September transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Stirum?

In Stirum, in September, the average high-temperature is 72.7°F (22.6°C), and the average low-temperature is 52.3°F (11.3°C).

What is the least humid month in Stirum?

Months with the lowest humidity in Stirum, North Dakota, are August and September, with an average relative humidity of 62%.

What is the average humidity in September in Stirum?

In September, the average relative humidity in Stirum is 62%.

How much does it rain in Stirum in September?

In Stirum, in September, during 9.5 rainfall days, 1.5" (38mm) of precipitation is typically accumulated.

Does it snow in Stirum in September?

In Stirum, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Stirum?

In Stirum, North Dakota, snow does not fall in June through September.

How many hours of daylight does Stirum have in September?

The average length of the day in September in Stirum is 12.5h.

How long on average sun shines in September in Stirum?

In Stirum, the average sunshine in September is 8.8h.

What is the UV index intensity in September in Stirum?

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.

Average temperature in September
Stirum, ND

Average temperature in September - Stirum, ND
  • Average high temperature in September: 72.7°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (19°F).

  • Average low temperature in September: 52.3°F

The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).

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Average pressure in September
Stirum, ND

Average pressure in September - Stirum, ND
  • Average pressure in September: 29.96"

The month with the highest atmospheric pressure is February (30.17").
The month with the lowest atmospheric pressure is June (29.85").

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Average wind speed in September
Stirum, ND

Average wind speed in September - Stirum, ND
  • Average wind speed in September: 9.6mph

The windiest month (with the highest average wind speed) is October (10.8mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

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Average humidity in September
Stirum, ND

Average humidity in September - Stirum, ND
  • Average humidity in September: 62%

The month with the highest relative humidity is January (90%).
Months with the lowest relative humidity are August and September (62%).

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Average rainfall in September
Stirum, ND

Average rainfall in September - Stirum, ND
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.63").

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Average rainfall days in September
Stirum, ND

Average rainfall days in September - Stirum, ND
  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is June (16.8 days).
The month with the least rainy days is February (2.4 days).

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Average snowfall in September
Stirum, ND

Average snowfall in September - Stirum, ND
  • Average snowfall in September: 0"

The month with the highest snowfall is December (4.61").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Stirum, ND

Average snowfall days in September - Stirum, ND
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15.3 days).
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
Stirum, ND

Average daylight in September / Average sunshine in September - Stirum, ND
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.7h).
The month with the shortest days is December (Average daylight: 8.7h).

  • Average sunshine in September: 8.8h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is January (Average sunshine: 3.7h).

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Average sunshine days in September
Stirum, ND

Average sunshine days in September - Stirum, ND
  • Average sunshine days in September: 18.5 days

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (10.3 days).

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Average UV index in September
Stirum, ND

Average UV index in September - Stirum, ND
  • Average UV index in September: 4

Months with the highest UV index are June and July (UV index 6).
Months with the lowest UV index are January and November (UV index 1).

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Average cloud cover in September
Stirum, ND

Average cloud cover in September - Stirum, ND
  • Average cloud cover in September: 26

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).

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Average visibility in September
Stirum, ND

Average visibility in September - Stirum, ND
  • Average visibility in September: 6mi

Months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February and March (5mi).

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