Portal
Arizona, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Portal, AZ

The first month of the autumn, September, is also a moderately hot month in Portal, Arizona, with temperature in the range of an average high of 84.9°F (29.4°C) and an average low of 54.5°F (12.5°C).

Temperature

In September, the average high-temperature is relatively the same as in August - a moderately hot 84.9°F (29.4°C). In Portal, the average low-temperature is 54.5°F (12.5°C).

Rainfall

In September, in Portal, Arizona, the rain falls for 6 days. Throughout September, 2.1" (52.1mm) of precipitation is accumulated. Throughout the year, in Portal, there are 57 rainfall days, and 17.4" (441.3mm) of precipitation is accumulated.

Snowfall

In Portal, Arizona, snow does not fall in May through September.

Daylight

In September, the average length of the day is 12.3h.

What is the temperature in September in Portal?

The average high-temperature, in September, is 84.9°F (29.4°C), while the average low-temperature is 54.5°F (12.5°C).

How much does it rain in Portal in September?

In Portal, Arizona, in September, it is raining for 6 days, with typically 2.1" (52.1mm) of accumulated precipitation.

Does it snow in Portal in September?

In Portal, Arizona, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Portal?

May through September are months without snowfall in Portal.

How many hours of daylight does Portal have in September?

In Portal, Arizona, the average length of the day in September is 12.3h.
Average temperature in September - Portal, AZ
  • Average high temperature in September: 85°F

The warmest month (with the highest average high temperature) is June (90.7°F).
The month with the lowest average high temperature is January (55°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (27.4°F).

Average rainfall in September - Portal, AZ
  • Average rainfall in September: 2.1"

The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the lowest rainfall) is May (0.3").

Average rainfall days in September - Portal, AZ
  • Average rainfall days in September: 6 days

Months with the highest number of rainy days are July and August (10 days).
The month with the lowest number of rainy days is May (2 days).

Average snowfall in September - Portal, AZ
  • Average snowfall in September: 0"

The month with the highest snowfall is January (3.4").
Months with the lowest snowfall are May, June, July, August and September (0").

Average daylight in September - Portal, AZ
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 14.2h).
The month with shortest days is December (Average daylight: 10.1h).