July weather forecastFort Defiance, AZ
July
Weather in July
July, like June, in Fort Defiance, Arizona, is another warm summer month, with an average temperature fluctuating between 61.7°F (16.5°C) and 81.7°F (27.6°C).Temperature
With its high average temperature of 81.7°F (27.6°C) and a low of 61.7°F (16.5°C), July is regarded as the warmest month.Heat index
During July, the heat index is appraised at 80.6°F (27°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.Understand that the heat index values take into account shaded locations and mild winds. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', melds the effects of warmth and moisture to generate a feeling of heat. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In July, the average relative humidity in Fort Defiance is 41%.Rainfall
The month with the most rainfall is July, when the rain falls for 19.7 days and typically aggregates up to 2.76" (70mm) of precipitation.Snowfall
In Fort Defiance, snow does not fall in June through September.Daylight
In Fort Defiance, the average length of the day in July is 14h and 18min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:36 pm. On the last day of July, sunrise is at 6:24 am and sunset at 8:21 pm MDT.
Sunshine
In Fort Defiance, the average sunshine in July is 11.6h.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index, 6 in July, converts into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Fort Defiance, AZ
- Average high temperature in July: 81.7°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 July: 61.7°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 July
Fort Defiance, AZ
- Average pressure in July: 29.94"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 July
Fort Defiance, AZ
- Average wind speed in July: 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 July
Fort Defiance, AZ
- Average humidity in July: 41%
The month with the highest relative humidity is January (71%).
The month with the lowest relative humidity is June (24%).
Average rainfall in July
Fort Defiance, AZ
- Average rainfall in July: 2.76"
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 July
Fort Defiance, AZ
- Average rainfall days in July: 19.7 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 July
Fort Defiance, AZ
- Average snowfall in July: 0"
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 July
Fort Defiance, AZ
- Average snowfall days in July: 0 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 July /
Average sunshine in July
Fort Defiance, AZ
- Average daylight in July: 14h and 18min
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 July: 11h and 36min
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 July
Fort Defiance, AZ
- Average sunshine days in July: 8.7 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 July
Fort Defiance, AZ
- Average UV index in July: 6
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 July
Fort Defiance, AZ
- Average cloud cover in July: 21
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 July
Fort Defiance, AZ
- Average visibility in July: 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).





