September weather forecast
Horace, ND

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Weather in September

In September, Horace witnesses the onset of autumn and with it, a marked drop in temperatures. Rainfall declines during this month, and snowfall is non-existent. Daylight hours continue to lessen, signaling the shortening days of autumn. On a positive note, this month boasts more clear days with decreased cloud cover. With relative humidity at 63%, September serves as one of the driest months of the year.

Temperature

September ushers in a slight temperature change, with average high-temperatures reducing from August's moderately hot 81°F (27.2°C) to an agreeable 71.8°F (22.1°C). During September, an average low-temperature of 52.7°F (11.5°C) is observed.

Humidity

September is the least humid month in Horace, with an average relative humidity of 63%.

Rainfall

In Horace, North Dakota, during September, the rain falls for 8.9 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, in Horace, there are 102.5 rainfall days, and 17.17" (436mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Horace.

Daylight

The average length of the day in September in Horace is 12h and 32min.
On the first day of the month, sunrise is at 6:48 am and sunset at 8:06 pm. On the last day of September, in Horace, sunrise is at 7:26 am and sunset at 7:08 pm CDT.

Sunshine

In Horace, the average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September in Horace is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Act with care - The need to guard against sun damage is communicated. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What is the average September temperature in Horace?

In Horace, 71.8°F (22.1°C) is the average high-temperature and 52.7°F (11.5°C) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in August is evaluated at 84.2°F (29°C).

What is the least humid month in Horace?

With an average relative humidity of 63%, September is the least humid month.

What is the average humidity in September in Horace?

In Horace, the average relative humidity in September is 63%.

How many days does it rain in September in Horace?

In Horace, North Dakota, in September, it is raining for 8.9 days, with typically 1.26" (32mm) of accumulated precipitation.

When it does not snow in Horace?

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

Does it snow in Horace in September?

In Horace, North Dakota, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Horace have in September?

The average day length in September is 12h and 32min.

When is the sunrise / sunset in September in Horace?

In September, on the first day of the month, sunrise is at 6:48 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:08 pm CDT.

How long on average sun shines in September in Horace?

In Horace, North Dakota, the average sunshine duration in September is 8.9h.

What is the UV index intensity in September in Horace?

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
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
Horace, ND

Average temperature in September - Horace, ND
  • Average high temperature in September: 71.8°F

The warmest months (with the highest average high temperature) are July and August (81°F).
The month with the lowest average high temperature is January (16.2°F).

  • Average low temperature in September: 52.7°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (2.7°F).

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Average pressure in September
Horace, ND

Average pressure in September - Horace, ND
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

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Average wind speed in September
Horace, ND

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

The windiest month (with the highest average wind speed) is October (10.7mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

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Average humidity in September
Horace, ND

Average humidity in September - Horace, ND
  • Average humidity in September: 63%

The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (63%).

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Average rainfall in September
Horace, ND

Average rainfall in September - Horace, ND
  • Average rainfall in September: 1.26"

The wettest month (with the highest rainfall) is June (3.07").
The driest month (with the least rainfall) is January (0.55").

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Average rainfall days in September
Horace, ND

Average rainfall days in September - Horace, ND
  • Average rainfall days in September: 8.9 days

The month with the highest number of rainy days is June (15.5 days).
The month with the least rainy days is February (1.7 days).

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Average snowfall in September
Horace, ND

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

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

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Average snowfall days in September
Horace, ND

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

The month with the highest number of snowfall days is January (13.6 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
Horace, ND

Average daylight in September / Average sunshine in September - Horace, ND
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).

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Average sunshine days in September
Horace, ND

Average sunshine days in September - Horace, ND
  • Average sunshine days in September: 19.7 days

The month with the most sunshine days is September (19.7 days).
The month with the least sunshine days is June (11.3 days).

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Average UV index in September
Horace, ND

Average UV index in September - Horace, ND
  • 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 and December (UV index 1).

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Average cloud cover in September
Horace, ND

Average cloud cover in September - Horace, ND
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 25).

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Average visibility in September
Horace, ND

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

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

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Horace, North Dakota, USA

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