Oklahoma, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Helena, OK

The first month of the autumn, September, is still a warm month in Helena, Oklahoma, with average temperature varying between 83.8°F (28.8°C) and 59.2°F (15.1°C).


In September, the average high-temperature drops, from a tropical 93.2°F (34°C) in August, to a warm 83.8°F (28.8°C). The average low-temperature, in Helena, is 59.2°F (15.1°C).


During September, Helena regularly aggregates up to 3.2" (81.3mm) of precipitation. Throughout the year, 28.2" (716.2mm) of rain is accumulated.


In September, the average length of the day in Helena is 12.4h.

What is the temperature in September in Helena?

In September, in Helena, the average high-temperature is 83.8°F (28.8°C), and the average low-temperature is 59.2°F (15.1°C).

How much does it rain in Helena in September?

In Helena, Oklahoma, in September, 3.2" (81.3mm) of precipitation is typically accumulated.

What is the average length of the day in September in Helena?

The average length of the day in September in Helena, Oklahoma, is 12.4h.
Average temperature in September - Helena, OK
  • Average high temperature in September: 83.8°F

The warmest month (with the highest average high temperature) is July (94.9°F).
The month with the lowest average high temperature is January (43.6°F).

  • Average low temperature in September: 59.1°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (20°F).

Average rainfall in September - Helena, OK
  • Average rainfall in September: 3.2"

The wettest month (with the highest rainfall) is May (4").
The driest month (with the lowest rainfall) is January (0.8").

Average daylight in September - Helena, OK
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.6h).
The month with shortest days is December (Average daylight: 9.7h).