September weather forecast
Black Jack, MO

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Weather in September

September, the first month of the autumn in Black Jack, is also a moderately hot month, with an average temperature ranging between max 79.5°F (26.4°C) and min 59.9°F (15.5°C).

Temperature

A mild shift in the average high-temperature occurs in September, reducing from 85.3°F (29.6°C) in August to a still moderately hot 79.5°F (26.4°C). In the month of September, Black Jack experiences an average low-temperature of 59.9°F (15.5°C).

Humidity

In Black Jack, Missouri, the average relative humidity in September is 73%.

Rainfall

In September, in Black Jack, the rain falls for 12.4 days. Throughout September, 2.01" (51mm) of precipitation is accumulated. Throughout the year, there are 149 rainfall days, and 31.61" (803mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 26min.
On the first day of the month, sunrise is at 6:30 am and sunset at 7:30 pm. On the last day of September, in Black Jack, sunrise is at 6:56 am and sunset at 6:44 pm CDT.

Sunshine

The average sunshine in September in Black Jack is 9.5h.

UV index

In Black Jack, Missouri, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 5 in September translates into these instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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Frequently asked questions

What are September temperatures in Black Jack?

September temperatures vary between a high-temperature of 79.5°F (26.4°C) and a low-temperature of 59.9°F (15.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 95°F (35°C).

What is the average humidity in September in Black Jack?

In September, the average relative humidity in Black Jack is 73%.

How much does it rain in Black Jack in September?

In Black Jack, in September, during 12.4 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

When it does not snow in Black Jack?

In Black Jack, snow does not fall in April through October.

What is the average length of the day in September in Black Jack?

In September, the average day length in Black Jack is 12h and 26min.

When is the sunrise / sunset in September in Black Jack?

In September, on the first day of the month, sunrise is at 6:30 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:44 pm CDT.

How many hours of sunshine does Black Jack have in September?

In September, the average sunshine duration is 9.5h.

How high is the UV index in September in Black Jack?

The average daily maximum UV index in September in Black Jack is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Black Jack, MO

Average temperature in September - Black Jack, MO
  • Average high temperature in September: 79.5°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.2°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).

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Average pressure in September
Black Jack, MO

Average pressure in September - Black Jack, 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 (29.92"Hg).

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Average wind speed in September
Black Jack, MO

Average wind speed in September - Black Jack, MO
  • Average wind speed in September: 6.1mph

The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).

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Average humidity in September
Black Jack, MO

Average humidity in September - Black Jack, MO
  • Average humidity in September: 73%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Black Jack, MO

Average rainfall in September - Black Jack, MO
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is February (1.69").

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Average rainfall days in September
Black Jack, MO

Average rainfall days in September - Black Jack, MO
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in September
Black Jack, MO

Average snowfall in September - Black Jack, MO
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.95").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Black Jack, MO

Average snowfall days in September - Black Jack, MO
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.7 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
Black Jack, MO

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 3min

The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in September
Black Jack, MO

Average sunshine days in September - Black Jack, MO
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is October (19 days).
The month with the least sunshine days is May (11 days).

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Average UV index in September
Black Jack, MO

Average UV index in September - Black Jack, 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, November and December (UV index 2).

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Average cloud cover in September
Black Jack, MO

Average cloud cover in September - Black Jack, MO
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in September
Black Jack, MO

Average visibility in September - Black Jack, MO
  • Average visibility in September: 6mi

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

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Black Jack, Missouri, USA

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