Saint Johns
Arizona, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Saint Johns, AZ

September, the first month of the autumn, in Saint Johns, is also a moderately hot month, with average temperature varying between 81.7°F (27.6°C) and 49.5°F (9.7°C).

Temperature

In Saint Johns, the average high-temperature is almost the same as in August - a warm 81.7°F (27.6°C). In Saint Johns, in September, the average low-temperature is 49.5°F (9.7°C).

Rainfall

In September, the rain falls for 5.4 days. Throughout September, 1.4" (36.1mm) of precipitation is accumulated. In Saint Johns, Arizona, during the entire year, the rain falls for 51.1 days and collects up to 11.5" (291.4mm) of precipitation.

Snowfall

In Saint Johns snow does not fall in May through September.

Daylight

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

What is the temperature in September in Saint Johns?

The average high-temperature, in September, in Saint Johns, is 81.7°F (27.6°C), while the average low-temperature is 49.5°F (9.7°C).

How many days does it rain in September in Saint Johns?

In September, in Saint Johns, the rain falls for 5.4 days. Throughout September, 1.4" (36.1mm) of precipitation is accumulated.

Does it snow in Saint Johns in September?

In Saint Johns, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Saint Johns?

May through September are months without snowfall.

How many hours of daylight does Saint Johns have in September?

In September, the average length of the day is 12.4h.
Average temperature in September - Saint Johns, AZ
  • Average high temperature in September: 81.7°F

The warmest month (with the highest average high temperature) is July (89.5°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in September: 49.5°F

The month with the highest average low temperature is July (58.1°F).
The coldest month (with the lowest average low temperature) is December (19.1°F).

Average rainfall in September - Saint Johns, AZ
  • Average rainfall in September: 1.4"

The wettest month (with the highest rainfall) is August (2.3").
Driest months (with the lowest rainfall) are April, May and June (0.5").

Average rainfall days in September - Saint Johns, AZ
  • Average rainfall days in September: 5.4 days

The month with the highest number of rainy days is August (8.8 days).
The month with the lowest number of rainy days is April (2.5 days).

Average snowfall in September - Saint Johns, AZ
  • Average snowfall in September: 0"

The month with the highest snowfall is January (4.1").
Months with the lowest snowfall are May, June, July, August and September (0").

Average snowfall days in September - Saint Johns, AZ
  • Average snowfall days in September: 0 days

Months with the highest number of snowfall days are January and December (1.1 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

Average daylight in September - Saint Johns, AZ
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 9.9h).