May weather forecast
Fort Defiance, AZ

Weather in May

The last month of the spring, May, is a comfortable month in Fort Defiance, Arizona, with average temperature varying between 67.8°F (19.9°C) and 44.6°F (7°C).

Temperature

In Fort Defiance, the average high-temperature slightly increases, from a mild 59.5°F (15.3°C) in April, to a comfortable 67.8°F (19.9°C). In May, in Fort Defiance, the average low-temperature is 44.6°F (7°C).

Humidity

In Fort Defiance, the average relative humidity in May is 31%.

Rainfall

In Fort Defiance, during May, the rain falls for 6.9 days and regularly aggregates up to 0.51" (13mm) of precipitation. Throughout the year, in Fort Defiance, there are 91.1 rainfall days, and 12.72" (323mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Fort Defiance are January through May, October through December. May is the last month it regularly snows in Fort Defiance. During 0.7 snowfall days, Fort Defiance aggregates 0.35" (9mm) of snow. Throughout the year, in Fort Defiance, there are 37.7 snowfall days, and 22.44" (570mm) of snow is accumulated.

Daylight

In May, the average length of the day is 14.1h.

Sunshine

In May, the average sunshine is 11.4h.

UV index

In Fort Defiance, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to the UV radiation for the ordinary person.
Note: The daily maximum UV index of 5 interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the average humidity in May in Fort Defiance?

In May, the average relative humidity is 31%.

How many days does it rain in May in Fort Defiance?

In May, in Fort Defiance, Arizona, the rain falls for 6.9 days. Throughout May, 0.51" (13mm) of precipitation is accumulated.

What is the last month it snows in Fort Defiance?

May is the last month it regularly snows in Fort Defiance, Arizona. During 0.7 snowfall days, in May, Fort Defiance aggregates 0.35" (9mm) of snow.

How many hours of daylight does Fort Defiance have in May?

The average length of the day in May in Fort Defiance, Arizona, is 14.1h.

How long on average sun shines in May in Fort Defiance?

The average sunshine in May in Fort Defiance is 11.4h.

What is the UV index intensity in May in Fort Defiance?

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to the UV radiation.

Average temperature in May
Fort Defiance, AZ

Average temperature in May - Fort Defiance, AZ
  • Average high temperature in May: 67.8°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in May: 44.6°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

[Resources]

Average pressure in May
Fort Defiance, AZ

Average pressure in May - Fort Defiance, AZ
  • Average pressure in May: 29.88"

The month with the highest atmospheric pressure is January (30.19").
The month with the lowest atmospheric pressure is June (29.87").

[Resources]

Average wind speed in May
Fort Defiance, AZ

Average wind speed in May - Fort Defiance, AZ
  • Average wind speed in May: 10.7mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

[Resources]

Average humidity in May
Fort Defiance, AZ

Average humidity in May - Fort Defiance, AZ
  • Average humidity in May: 31%

The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is June (24%).

[Resources]

Average rainfall in May
Fort Defiance, AZ

Average rainfall in May - Fort Defiance, AZ
  • Average rainfall in May: 0.51"

The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is June (0.39").

[Resources]

Average rainfall days in May
Fort Defiance, AZ

Average rainfall days in May - Fort Defiance, AZ
  • Average rainfall days in May: 6.9 days

The month with the highest number of rainy days is July (19.7 days).
The month with the least rainy days is November (3.1 days).

[Resources]

Average snowfall in May
Fort Defiance, AZ

Average snowfall in May - Fort Defiance, AZ
  • Average snowfall in May: 0.35"

The month with the highest snowfall is December (6.42").
Months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in May
Fort Defiance, AZ

Average snowfall days in May - Fort Defiance, AZ
  • Average snowfall days in May: 0.7 days

The month with the highest number of snowfall days is December (9 days).
Months with the least snowfall days are June, July, August and September (0 days).

[Resources]

Average daylight in May /
Average sunshine in May
Fort Defiance, AZ

Average daylight in May / Average sunshine in May - Fort Defiance, AZ
  • Average daylight in May: 14.1h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in May: 11.4h

The month with the most sunshine is June (Average sunshine: 11.8h).
Months with the least sunshine are January and December (Average sunshine: 6.4).

[Resources]

Average sunshine days in May
Fort Defiance, AZ

Average sunshine days in May - Fort Defiance, AZ
  • Average sunshine days in May: 21.7 days

The month with the most sunshine days is November (23.5 days).
The month with the least sunshine days is July (8.7 days).

[Resources]

Average UV index in May
Fort Defiance, AZ

Average UV index in May - Fort Defiance, AZ
  • Average UV index in May: 5

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

[Resources]

Average cloud cover in May
Fort Defiance, AZ

Average cloud cover in May - Fort Defiance, AZ
  • Average cloud cover in May: 15

Months with the most cloud cover are January and December (Cloud cover 29).
The month with the least cloud cover is June (Cloud cover 10).

[Resources]

Average visibility in May
Fort Defiance, AZ

Average visibility in May - Fort Defiance, AZ
  • Average visibility in May: 6mi

Months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location