September weather forecast
Guthrie, OK

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Weather in September

September ushers in the fall season in Guthrie. The weather becomes more diverse, with relatively cooler temperatures, compared to the preceding months, setting in. It is a popular month for tourists due to the decrease in temperatures and the onset of the autumn foliage. While it remains relatively dry, the accumulation of rainfall starts to increase again, reaching an average of 2.83" (72mm). In terms of weather, September serves as a crossroads between summer and fall, exhibiting a cooler and calmer atmosphere.

Temperature

September is characterized by a slight reduction in average high-temperature, easing from a hot 92.8°F (33.8°C) in August to a warm 84.7°F (29.3°C). In the month of September, an average of 65.5°F (18.6°C) marks the low-temperature in Guthrie.

Heat index

The average heat index in September is estimated at a tropical 89.6°F (32°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.
The heat index's values are generally associated with conditions in shade and light breezes. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.

Humidity

In Guthrie, the average relative humidity in September is 65%.

Rainfall

In Guthrie, during September, the rain falls for 13.5 days and regularly aggregates up to 2.83" (72mm) of precipitation. In Guthrie, during the entire year, the rain falls for 122.2 days and collects up to 24.17" (614mm) of precipitation.

Snowfall

May through October are months without snowfall in Guthrie, Oklahoma.

Daylight

In Guthrie, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 7:02 am and sunset at 7:56 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:14 pm CDT.

Sunshine

The average sunshine in September in Guthrie is 8.7h.

UV index

In Guthrie, Oklahoma, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: During September, 5 as the daily maximum UV index converts into the following advice:
Exercise prevention - Protecting skin and eyes from harm is required. Minimize direct exposure to the Sun during midday when its radiation is at its peak. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Frequently asked questions

How hot is it in Guthrie in September?

The high-temperature, in September, in Guthrie, is 84.7°F (29.3°C), while the low-temperature averages to 65.5°F (18.6°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in September is estimated at 89.6°F (32°C).

What is the average humidity in September in Guthrie?

In Guthrie, Oklahoma, the average relative humidity in September is 65%.

How many days does it rain in September in Guthrie?

In Guthrie, Oklahoma, in September, it is raining for 13.5 days, with typically 2.83" (72mm) of accumulated precipitation.

When it does not snow in Guthrie?

May through October are months without snowfall.

How many hours of daylight does Guthrie have in September?

In Guthrie, the average day length in September is 12h and 23min.

When is the sunrise / sunset in September in Guthrie?

On the first day of September in Guthrie, Oklahoma, sunrise is at 7:02 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:14 pm CDT.

How many hours of sunshine does Guthrie have in September?

The average sunshine duration in September in Guthrie, Oklahoma, is 8.7h.

How high is the UV index in September in Guthrie?

In Guthrie, 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
Guthrie, OK

Average temperature in September - Guthrie, OK
  • Average high temperature in September: 84.7°F

The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is January (48°F).

  • Average low temperature in September: 65.5°F

The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

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Average pressure in September
Guthrie, OK

Average pressure in September - Guthrie, OK
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed in September
Guthrie, OK

Average wind speed in September - Guthrie, OK
  • Average wind speed in September: 8.7mph

The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

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Average humidity in September
Guthrie, OK

Average humidity in September - Guthrie, OK
  • Average humidity in September: 65%

The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (60%).

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Average rainfall in September
Guthrie, OK

Average rainfall in September - Guthrie, OK
  • Average rainfall in September: 2.83"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is December (0.83").

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Average rainfall days in September
Guthrie, OK

Average rainfall days in September - Guthrie, OK
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is May (15.2 days).
The month with the least rainy days is January (4.8 days).

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Average snowfall in September
Guthrie, OK

Average snowfall in September - Guthrie, OK
  • Average snowfall in September: 0"

The months with the highest snowfall are January and February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Guthrie, OK

Average snowfall days in September - Guthrie, OK
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Guthrie, OK

Average daylight in September / Average sunshine in September - Guthrie, OK
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

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Average sunshine days in September
Guthrie, OK

Average sunshine days in September - Guthrie, OK
  • Average sunshine days in September: 13.7 days

The months with the most sunshine days are January and December (23.6 days).
The month with the least sunshine days is September (13.7 days).

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Average UV index in September
Guthrie, OK

Average UV index in September - Guthrie, OK
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in September
Guthrie, OK

Average cloud cover in September - Guthrie, OK
  • Average cloud cover in September: 26

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).

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Average visibility in September
Guthrie, OK

Average visibility in September - Guthrie, OK
  • 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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Guthrie, Oklahoma, USA

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