Santa Rosa, AZ Climate


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Santa Rosa, AZ has a hot desert climate with very little rainfall. On average, temperatures remain in the 90s during the summer months and can often reach over 100 degrees. The winter months are generally mild, with temperatures rarely dropping below 50 degrees. Due to the lack of rainfall, the area is mostly arid with vegetation limited to scrub brush and cacti. Despite this, Santa Rosa remains a popular destination for tourists and locals alike due to its unique landscapes and culture.

Santa Rosa, Arizona gets 11 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Santa Rosa averages 0 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 280 sunny days per year in Santa Rosa. The US average is 205 sunny days.

Santa Rosa gets some kind of precipitation, on average, 39 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 101 degrees
Winter Low: the January low is 36
Rain: averages 11 inches of rain a year
Snow: averages 0 inches of snow a year


Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Santa Rosa is 7.6 (10=best), which means it is about average compared to other places in Arizona.

5.4 Summer - 8.4 Winter
April, March and November are the most pleasant months in Santa Rosa, while July and August are the least comfortable months.

  ClimateSanta Rosa, ArizonaUnited States
  11.4 in.38.1 in.
  0.0 in.27.8 in.
  39.3 days106.2 days
  280 days205 days
  100.5°85.8°
  36.0°21.7°
  7.67
  6.54.3
  1811 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.

July is the hottest month for Santa Rosa with an average high temperature of 100.5°, which ranks it as warmer than most places in Arizona. In Santa Rosa, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Santa Rosa are March, November and April.
In Santa Rosa, there are 148.0 days annually when the high temperature is over 90°, which is hotter than most places in Arizona.
December has the coldest nighttime temperatures for Santa Rosa with an average of 35.7°. This is warmer than most places in Arizona.
In Santa Rosa, there are 32.7 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Arizona.
In Santa Rosa, 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 Santa Rosa 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 Santa Rosa with 2.4 inches of rain, and the driest month is May with 0.2 inches. The wettest season is Autumn with 42% of yearly precipitation and 11% occurs in Summer, which is the driest season. The annual rainfall of 11.4 inches in Santa Rosa means that it is about average compared to other places in Arizona.
August is the rainiest month in Santa Rosa with 7.6 days of rain, and May is the driest month with only 1.1 rainy days. There are 39.3 rainy days annually in Santa Rosa, which is less rainy than most places in Arizona. The rainiest season is Autumn when it rains 40% of the time and the driest is Summer with only a 14% chance of a rainy day.
There is rarely any recorded snowfall in Santa Rosa, ranking it as one of the least snowy places in Arizona. Any measurable snowfall is a rare occurance in Santa Rosa.
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