September weather forecast
Hartshorn, MO

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Weather in September

The first month of the autumn, September, is still a warm month in Hartshorn, Missouri, with an average temperature fluctuating between 79.7°F (26.5°C) and 58.6°F (14.8°C).

Temperature

A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a hot 86.5°F (30.3°C) to a moderately hot 79.7°F (26.5°C). September brings with it a nighttime average temperature of 58.6°F (14.8°C).

Humidity

In Hartshorn, the average relative humidity in September is 75%.

Rainfall

September is the month with the least rainfall in Hartshorn. Rain falls for 11.6 days and accumulates 1.85" (47mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

The average length of the day in September in Hartshorn, Missouri, is 12h and 25min.
On the first day of September in Hartshorn, sunrise is at 6:37 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:50 pm CDT.

Sunshine

In Hartshorn, the average sunshine in September is 9.1h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Make use of precautions - Suggestions to resist sunburn are communicated. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
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Frequently asked questions

What are September temperatures in Hartshorn?

The average high-temperature and low-temperature in Hartshorn during September are 79.7°F (26.5°C) and 58.6°F (14.8°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is appraised at 98.6°F (37°C).

What is the average humidity in September in Hartshorn?

In September, the average relative humidity in Hartshorn, Missouri, is 75%.

What is the driest month in Hartshorn?

September is the month with the least rainfall in Hartshorn. Rain falls for 11.6 days and accumulates 1.85" (47mm) of precipitation.

How many days does it rain in September in Hartshorn?

In September, in Hartshorn, the rain falls for 11.6 days. Throughout September, 1.85" (47mm) of precipitation is accumulated.

When it does not snow in Hartshorn?

May through October are months without snowfall in Hartshorn, Missouri.

How many hours of daylight does Hartshorn have in September?

The average day length in September in Hartshorn is 12h and 25min.

When is the sunrise / sunset in September in Hartshorn?

In September, on the first day of the month, sunrise is at 6:37 am and sunset at 7:35 pm. On the last day of the month, in Hartshorn, sunrise is at 7:01 am and sunset at 6:50 pm CDT.

How many hours of sunshine does Hartshorn have in September?

The average sunshine duration in September in Hartshorn, Missouri, is 9.1h.

What is the UV index reading in September in Hartshorn?

In Hartshorn, Missouri, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to 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
Hartshorn, MO

Average temperature in September - Hartshorn, MO
  • Average high temperature in September: 79.7°F

The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in September: 58.6°F

The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

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Average pressure in September
Hartshorn, MO

Average pressure in September - Hartshorn, MO
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Hartshorn, MO

Average wind speed in September - Hartshorn, MO
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in September
Hartshorn, MO

Average humidity in September - Hartshorn, MO
  • Average humidity in September: 75%

The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in September
Hartshorn, MO

Average rainfall in September - Hartshorn, MO
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is September (1.85").

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Average rainfall days in September
Hartshorn, MO

Average rainfall days in September - Hartshorn, MO
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (7.6 days).

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Average snowfall in September
Hartshorn, MO

Average snowfall in September - Hartshorn, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (3.35").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Hartshorn, MO

Average snowfall days in September - Hartshorn, MO
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Hartshorn, MO

Average daylight in September / Average sunshine in September - Hartshorn, MO
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in September
Hartshorn, MO

Average sunshine days in September - Hartshorn, MO
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (11.2 days).

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Average UV index in September
Hartshorn, MO

Average UV index in September - Hartshorn, MO
  • Average UV index in September: 5

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in September
Hartshorn, MO

Average cloud cover in September - Hartshorn, MO
  • Average cloud cover in September: 34

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 31).

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Average visibility in September
Hartshorn, MO

Average visibility in September - Hartshorn, MO
  • Average visibility in September: 5mi

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

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Hartshorn, Missouri, USA

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