The best times to visit Williams for ideal weather are

April 30th to October 14th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Williams Travel Info

Weather in Williams


Average temperatures in Williams vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a very low chance of rain or snow throughout the year. The area is somewhat temperate — in the 46th percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Williams, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 94.6°F (34.8°C) with temperatures rarely dropping below 61.9°F (16.6°C) at night.

Williams Temperatures (Fahrenheit)


Williams Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Williams Perceived Temperature (F)


Williams Perceived Temperature (C)



Average Williams Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 42.1 27.5 16.7
Feb 49.9 35.3 23.7
Mar 61.8 44.6 29.6
Apr 69.2 51.9 35.4
May 77.6 60.6 43.3
Jun 90.2 72.6 52.1
Jul 93.8 77.2 61.1
Aug 91.3 74.9 59.3
Sep 83.8 67 51.3
Oct 70.7 53.4 38.2
Nov 57.2 40.4 27.4
Dec 43.6 30.4 20.7

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 5.6 -2.5 -8.5
Feb 9.9 1.8 -4.6
Mar 16.6 7 -1.3
Apr 20.7 11.1 1.9
May 25.3 15.9 6.3
Jun 32.3 22.6 11.2
Jul 34.3 25.1 16.2
Aug 32.9 23.8 15.2
Sep 28.8 19.4 10.7
Oct 21.5 11.9 3.4
Nov 14 4.7 -2.6
Dec 6.4 -0.9 -6.3



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Williams are June, April, and then March. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late March. For example, on the week of March 26th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid September with an average of 1 days of significant precipitation the week of September 10th.

When can you find snow in Williams? Weather stations report no annual snow. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Williams.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Williams (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 8% 0 0.8
Feb 8% 0 0.6
Mar 5% 0 0.5
Apr 4% 0 0.4
May 7% 0 0.6
Jun 4% 0 0.3
Jul 5% 0 0.3
Aug 11% 0 0.9
Sep 9% 0 1
Oct 6% 0 0.7
Nov 6% 0 0.5
Dec 9% 0 0.7

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 8 0 2
Feb 8 0 1.5
Mar 5 0 1.3
Apr 4 0 1
May 7 0 1.5
Jun 4 0 0.8
Jul 5 0 0.8
Aug 11 0 2.3
Sep 9 0 2.5
Oct 6 0 1.8
Nov 6 0 1.3
Dec 9 0 1.8


Humidity and Wind

Williams has some comfortably humid months, with some very dry months. The least humid month is June (12.6% relative humidity), and the most humid month is December (54.1%).

Wind in Williams is usually calm. The windiest month is April, followed by May and March. April’s average wind speed of around 8.5 knots (9.8 MPH or 15.8 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in mid April where average top sustained speeds reach 17.5 knots, which is considered a fresh breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Williams.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 5.6 Light breeze 10.8 Gentle breeze
Feb 6.6 Light breeze 13.4 Significant breeze
Mar 7.3 Gentle breeze 15.2 Gentle breeze
Apr 8.5 Gentle breeze 17.2 Strong breeze
May 7.7 Gentle breeze 14.9 Gentle breeze
Jun 7.3 Gentle breeze 13.8 Significant breeze
Jul 6.9 Light breeze 14 Gentle breeze
Aug 6.2 Light breeze 12.3 Significant breeze
Sep 6.1 Light breeze 12 Gentle breeze
Oct 6.5 Light breeze 13 Significant breeze
Nov 6.2 Light breeze 11.5 Gentle breeze
Dec 6 Light breeze 11.1 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 53.9%
Feb 44.1%
Mar 26.1%
Apr 18.8%
May 19.9%
Jun 12.6%
Jul 25.3%
Aug 27.3%
Sep 28%
Oct 29.8%
Nov 36.9%
Dec 54.1%


Is it Safe to Travel to Williams?

Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Dec 04, 2023.


The Busiest and Least Crowded Months

The busiest month for tourism in Williams, AZ, US is February, followed by January and March. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Williams in August. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 39.7 in August means 39.7% of the tourists vs. February.



Overall Williams Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 85.3°F (29.6°C) and 54.2°F (12.3°C) with warmer temperatures in the later months. Rain is rare with 1 to 2 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see moderate precipitation with 1 to 3 days of precipitation per month. June – August is the slowest season for tourism in Williams, so lodging and other accommodations may cost less than usual.

Fall (September through November)

Fall daily highs range from 88°F (31.1°C) and 50.8°F (10.4°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 2 to 3 days per month. Tourism is fairly slow during these months due to the weather, so hotels may be lower priced.

Winter (December through February)

Weather is far too cold this time of year in Williams to be enjoyable for warm weather travelers. The average high during this season is between 54.2°F (12.3°C) and 38.3°F (3.5°C). On average, it rains or snows a smalll amount: 2 to 3 times per month. These times of year are the busiest with tourists.


Best Times to Travelthe United States › Williams, AZ, US