St. David, AZ Climate


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St. David, AZ has a mild climate with hot summers and mild winters. The average high temperatures in the summer months range from 94 to 99 degrees Fahrenheit, while the winter months see temperatures ranging from 39 to 65 degrees Fahrenheit. Rainfall is minimal, although snow sometimes falls in the higher elevations during the winter months. The area experiences very little humidity throughout the year making it an ideal place for outdoor activities and recreation.

St. David, Arizona gets 13 inches of rain, on average, per year. The US average is 38 inches of rain per year.

St. David averages 2 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 279 sunny days per year in St. David. The US average is 205 sunny days.

St. David gets some kind of precipitation, on average, 56 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.


Weather Highlights

Summer High: the July high is around 96 degrees
Winter Low: the January low is 28
Rain: averages 13 inches of rain a year
Snow: averages 2 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for St. David is 7.8 (10=best), which means it is more comfortable than most places in Arizona.

6.8 Summer - 7.7 Winter
April, October and March are the most pleasant months in St. David, while July and June are the least comfortable months.

  ClimateSt. David, ArizonaUnited States
  13.0 in.38.1 in.
  1.5 in.27.8 in.
  55.7 days106.2 days
  279 days205 days
  95.7°85.8°
  28.3°21.7°
  7.87
  6.44.3
  3691 ft.2443 ft.
Climate
YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

June is the hottest month for St. David with an average high temperature of 96.8°, which ranks it as about average compared to other places in Arizona. In St. David, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. David are April, October and March.
In St. David, there are 107.8 days annually when the high temperature is over 90°, which is about average compared to other places in Arizona.
December has the coldest nighttime temperatures for St. David with an average of 28.0°. This is colder than most places in Arizona.
In St. David, there are 88.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Arizona.
In St. David, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Arizona.
Humidity in St. David is generally quite low and comfortable. There are few days during the summer when the humidity becomes unpleasant. The most humid months (but still comfortable) are August, July and September.
August is the wettest month in St. David with 3.0 inches of rain, and the driest month is April with 0.3 inches. The wettest season is Autumn with 48% of yearly precipitation and 10% occurs in Summer, which is the driest season. The annual rainfall of 13.0 inches in St. David means that it is wetter than most places in Arizona.
August is the rainiest month in St. David with 11.6 days of rain, and April is the driest month with only 1.9 rainy days. There are 55.7 rainy days annually in St. David, which is rainier than most places in Arizona. The rainiest season is Autumn when it rains 43% of the time and the driest is Summer with only a 13% chance of a rainy day.
An annual snowfall of 1.5 inches in St. David means that it is about average compared to other places in Arizona. January is the snowiest month in St. David with 0.7 inches of snow, and 1 month of the year have significant snowfall.
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