Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
Fort Defiance in May observes a minor temperature shift, with average high-temperatures adjusting from a moderate 59.5°F (15.3°C) in April to a still refreshing 67.8°F (19.9°C). Nighttime in May brings a stark departure from the daily high, resting at an average low-temperature of 44.6°F (7°C).Humidity
The average relative humidity in May is 31%.Rainfall
In Fort Defiance, in May, during 6.9 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. In Fort Defiance, during the entire year, the rain falls for 91.1 days and collects up to 12.72" (323mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.7 snowfall days, in May, Fort Defiance aggregates 0.35" (9mm) of snow. In Fort Defiance, during the entire year, snow falls for 37.7 days and aggregates up to 22.44" (570mm) of snow.Daylight
The average length of the day in May is 14h and 4min.On the first day of May, sunrise is at 6:23 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:26 pm MDT.
Sunshine
The average sunshine in May is 11.4h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Fort Defiance in May?
What is the average humidity in May?
How many days does it rain in May?
What is the last month it snows in Fort Defiance?
How many hours of daylight does Fort Defiance have in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Fort Defiance have in May?
What is the UV index reading in May?
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).
Average pressure in May
Fort Defiance, AZ
- Average pressure in May: 29.88"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
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).
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%).
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").
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).
Average snowfall in May
Fort Defiance, AZ
- Average snowfall in May: 0.35"
The month with the highest snowfall is December (6.42").
The months with the least snowfall are June, July, August and September (0").
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).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Fort Defiance, AZ
- Average daylight in May: 14h and 1min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 11h and 2min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The months with the least sunshine are January and December (Average sunshine: 6h and 24min).
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).
Average UV index in May
Fort Defiance, AZ
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Fort Defiance, AZ
- Average cloud cover in May: 15
The 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).
Average visibility in May
Fort Defiance, AZ
- Average visibility in May: 6mi
The 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).
Fort Defiance, Arizona, USA
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