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

October weather forecast and climate
Flagstaff, AZ

A close-up of the brown iconic clock tower in the city of Flagstaff, Arizona, with the street signs of Birch Avenue and San Francisco Street
A close-up of the brown iconic clock tower in the city of Flagstaff, Arizona, with the street signs of Birch Avenue and San Francisco Street
October, the same as September, is another enjoyable autumn month in Flagstaff, Arizona, with average temperature fluctuating between 62.1°F (16.7°C) and 31.5°F (-0.3°C).

Temperature

In October, the average high-temperature drops, from an agreeable 72.9°F (22.7°C) in September, to a comfortable 62.1°F (16.7°C). In October, the average low-temperature is 31.5°F (-0.3°C).

Humidity

The average relative humidity in October is 52.6%.

Rainfall

In Flagstaff, during October, the rain falls for 5.5 days and regularly aggregates up to 1.7" (42.2mm) of precipitation. In Flagstaff, during the entire year, the rain falls for 87.7 days and collects up to 21.9" (555.3mm) of precipitation.

Snowfall

Months with snowfall in Flagstaff are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.6 snowfall days, it receives 1.5" (38.1mm) of snow. In Flagstaff, during the entire year, snow falls for 34.9 days, and aggregates up to 101.7" (2583.3mm) of snow.

Daylight

In October, the average length of the day in Flagstaff, Arizona, is 11.3h.

Sunshine

In Flagstaff, the average sunshine in October is 9.1h.

UV index

In October, the average daily maximum UV index in Flagstaff is 6. A UV Index of 6 to 7 symbolizes a high health risk from the exposure to the Sun's UV radiation for ordinary individuals.
Note: In October, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in October in Flagstaff?

In Flagstaff, Arizona, in October, the average high-temperature is 62.1°F (16.7°C), and the average low-temperature is 31.5°F (-0.3°C).

What is the average humidity in October in Flagstaff?

In October, the average relative humidity in Flagstaff is 52.6%.

How much does it rain in Flagstaff in October?

In October, the rain falls for 5.5 days. Throughout October, 1.7" (42.2mm) of precipitation is accumulated.

When does it start snowing in Flagstaff?

October is the first month it typically snows. Throughout October, in the average 0.6 snowfall days, it receives 1.5" (38.1mm) of snow.

What is the average length of the day in October in Flagstaff?

The average length of the day in October is 11.3h.

How long on average sun shines in October in Flagstaff?

In Flagstaff, the average sunshine in October is 9.1h.

What is the UV index reading in October in Flagstaff?

In Flagstaff, the average daily maximum UV index in October is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from the exposure to the Sun's UV rays.
Average temperature in October - Flagstaff, AZ
  • Average high temperature in October: 62°F

The warmest month (with the highest average high temperature) is July (81.2°F).
Months with the lowest average high temperature are January and December (42.5°F).

  • Average low temperature in October: 31.5°F

The month with the highest average low temperature is July (50.9°F).
The coldest month (with the lowest average low temperature) is December (16.8°F).

Average humidity in October - Flagstaff, AZ
  • Average humidity in October: 52.6%

The month with the highest relative humidity is January (61.9%).
The month with the lowest relative humidity is June (33.6%).

Average rainfall in October - Flagstaff, AZ
  • Average rainfall in October: 1.7"

The wettest month (with the highest rainfall) is August (3.1").
The driest month (with the lowest rainfall) is June (0.4").

Average rainfall days in October - Flagstaff, AZ
  • Average rainfall days in October: 5.5 days

The month with the highest number of rainy days is August (14 days).
The month with the lowest number of rainy days is June (2.6 days).

Average snowfall in October - Flagstaff, AZ
  • Average snowfall in October: 1.5"

The month with the highest snowfall is January (23.2").
Months with the lowest snowfall are June, July, August and September (0").

Average snowfall days in October - Flagstaff, AZ
  • Average snowfall days in October: 0.6 days

The month with the highest number of snowfall days is January (7.5 days).
Months with the lowest number of snowfall days are June, July, August and September (0 days).

Average daylight in October / Average sunshine in October - Flagstaff, AZ
  • Average daylight in October: 11.3h

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).

  • Average sunshine in October: 9.1h

The month with most sunshine is June (Average sunshine: 12.4h).
The month with least sunshine is December (Average sunshine: 7.1h).

Average UV index in October - Flagstaff, AZ
  • Average UV index in October: 6

The month with the highest UV index is July (UV index 12).
Months with the lowest UV index are January and December (UV index 3).