Williams (AZ) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Williams.
Climate overview of Williams
Temperatures in Williams, Arizona, United States of America, vary greatly throughout the year. July is the hottest month at 28°C (82°F), while December is the coldest at 7°C (45°F).
The city receives around 533 mm (21 in) of rain/snowfall per year. It experiences two distinct dry seasons, February to June and October to November, with warm summers and cold winters. August is the wettest month and June the driest.
Williams Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Williams - and find the best time to visit.
Monthly Temperature in Williams
The climate in Williams is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a comfortable 28°C (82°F) in July to a chilly 7°C (45°F) in December.
Nighttime temperatures range from 13°C (55°F) in July to -6°C (21°F) in December.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Williams
Generally, Williams receives mid-range precipitation levels, with 533 mm (21 in) annually. The seasons in Williams bring significant changes in precipitation. The wettest month, August, receives moderate rainfall, with an average of 95 mm (3.7 in) of precipitation. This rainfall is distributed across 15 rainy days.
In contrast, the driest month, June, experiences much less rainfall, totaling 11 mm (0.4 in) over 2 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Williams Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Williams
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June, July, August and September
- Warmest weather: June, July and August
- Fewest rainy days: March, April, June and November
- Seasonal pattern: Two distinct dry seasons, February to June and October to November, with warm summers and cold winters
- Coldest conditions: December, with freezing nights around -6°C (21°F).
Frequently asked questions about the climate in Williams
What is the best time to visit Williams?
May, June, July, August and September typically offer the most optimal weather in Williams. In contrast, January, February and December tend to have less optimal conditions. Williams has two distinct dry seasons, February to June and October to November, with warm summers and cold winters.
What temperatures can I expect in Williams?
Daytime highs range from 7°C (45°F) in December to 28°C (82°F) in July. Nighttime lows range from -6°C (21°F) to 13°C (55°F). Temperatures vary considerably through the year.
How much rain does Williams get?
Annual rainfall is around 533 mm (21 in). August is the wettest month with 95 mm (3.7 in), while June is the driest with 11 mm (0.4 in).
Williams 3-Day Forecast
Williams (AZ) 3-Day Forecast
Williams on the map
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