Williams, AZ 

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Climate in Williams, AZ

Williams, AZ has a warm climate with mild winters and hot summers. Average daily temperatures range from the mid-30s in winter to the 90s in summer. There are very few days when temperatures dip below freezing, and snowfall is very light. Precipitation in Williams averages about 17 inches per year, most of which falls during the summer months as thunderstorms. Summers are mostly sunny and pleasant, while winters tend to be dry and sunny with occasional afternoon showers.

Williams, Arizona gets 22 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Williams averages 74 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 266 sunny days per year in Williams. The US average is 205 sunny days.

Williams gets some kind of precipitation, on average, 75 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 85 degrees
Winter Low: the January low is 22
Rain: averages 22 inches of rain a year
Snow: averages 74 inches of snow a year


The annual BestPlaces Comfort Index for Williams is 7.3 (10=best), which means it is less comfortable than most places in Arizona.

8.9 / 5.5

Summer   /   Winter
June, September and August are the most pleasant months in Williams, while January and December are the least comfortable months.

Climate Averages
  Williams, ArizonaUnited States
  22.2 in.38.1 in.
  74.3 in.27.8 in.
  75.3 days106.2 days
  266 days205 days
  6768 ft.2443 ft.


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 Williams with an average high temperature of 84.6°, which ranks it as one of the coolest places in Arizona. In Williams, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Williams are September, August and June.

In Williams, there are 8.4 days annually when the high temperature is over 90°, which is one of the coolest places in Arizona.

December has the coldest nighttime temperatures for Williams with an average of 21.2°. This is colder than most places in Arizona.

In Williams, there are 155.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Arizona.

In Williams, there are 1.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Arizona.

Humidity is low in Williams, and some people might find the dryness to be uncomfortable. Days with noticeable humidity are rare throughout the year. A very dry climate can lead to cracked, itchy skin and dry eyes.

August is the wettest month in Williams with 3.3 inches of rain, and the driest month is June with 0.4 inches. The wettest season is Spring with 31% of yearly precipitation and 18% occurs in Summer, which is the driest season. The annual rainfall of 22.2 inches in Williams means that it is one of the wettest places in Arizona.

August is the rainiest month in Williams with 12.3 days of rain, and June is the driest month with only 2.5 rainy days. There are 75.3 rainy days annually in Williams, which is one of the rainiest places in Arizona. The rainiest season is Autumn when it rains 33% of the time and the driest is Summer with only a 19% chance of a rainy day.

An annual snowfall of 74.3 inches in Williams means that it is one of the snowiest places in Arizona. January is the snowiest month in Williams with 19.5 inches of snow, and 7 months of the year have significant snowfall.

  • Annual Rainfall (US Avg: 36.5")
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    Reviews for Williams    7 Reviews
    Quality of Life - 3/7/2016
    Williams Arizona is a great place to live and an amazing place to visit. My husband and I bought a summer home here in 2008. We moved full time to Williams a year ago... Read More

    Start Your Review of Williams

    They're letting it die - 2/15/2011
    I've lived in Williams for a few years now. At first I was completely in love with this rustic, Rockwelliam little town, but as the years have passed I think I made a... Read More

    Bad place to live and raise a family - 3/28/2010
    Williams Az is like a poor city. No place to raise children.Place to vacation and I don't even think to retire. You have to haul your water and it is filled with messy... Read More

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