The best times to visit White Sulphur Springs for ideal weather are

June 18th to September 30th

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



Other White Sulphur Springs Travel Info

Weather in White Sulphur Springs


Average temperatures in White Sulphur Springs vary an incredible amount. 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 41st 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 White Sulphur Springs, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally early to mid July where highs are regularly around 86.9°F (30.5°C) with temperatures rarely dropping below 55.2°F (12.9°C) at night.

White Sulphur Springs Temperatures (Fahrenheit)


White Sulphur Springs 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.

White Sulphur Springs Perceived Temperature (F)


White Sulphur Springs Perceived Temperature (C)



Average White Sulphur Springs 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 41.3 28.6 17.8
Feb 36.3 25.1 15.5
Mar 48.1 35.7 24.7
Apr 54.2 40.7 29.6
May 62.2 49.6 38.4
Jun 73 60.2 47.8
Jul 83.7 68.2 53.4
Aug 83 67.4 53.1
Sep 74.9 59.4 46.4
Oct 60 46 34.6
Nov 44.8 33 22.4
Dec 39.1 28.4 18.3

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 5.2 -1.9 -7.9
Feb 2.4 -3.8 -9.2
Mar 8.9 2.1 -4.1
Apr 12.3 4.8 -1.3
May 16.8 9.8 3.6
Jun 22.8 15.7 8.8
Jul 28.7 20.1 11.9
Aug 28.3 19.7 11.7
Sep 23.8 15.2 8
Oct 15.6 7.8 1.4
Nov 7.1 0.6 -5.3
Dec 3.9 -2 -7.6



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in White Sulphur Springs are March, September, and then November. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around late October to early November. For example, on the week of October 29th there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early June with an average of 2 days of significant precipitation the week of June 4th.

When can you find snow in White Sulphur Springs? 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 White Sulphur Springs.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in White Sulphur Springs (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 10% 0 0.8
Feb 10% 0 0.6
Mar 8% 0 0.8
Apr 16% 0 1.7
May 24% 0 3
Jun 24% 0 2.8
Jul 16% 0 1.7
Aug 15% 0 2.1
Sep 8% 0 1
Oct 12% 0 1.2
Nov 10% 0 0.8
Dec 10% 0 0.7

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 10 0 2
Feb 10 0 1.5
Mar 8 0 2
Apr 16 0 4.3
May 24 0 7.6
Jun 24 0 7.1
Jul 16 0 4.3
Aug 15 0 5.3
Sep 8 0 2.5
Oct 12 0 3
Nov 10 0 2
Dec 10 0 1.8


Humidity and Wind

White Sulphur Springs has some comfortably humid months, and slightly dry months in the opposite season. The least humid month is August (33.1% relative humidity), and the most humid month is May (56%).

Wind in White Sulphur Springs is usually moderate. The windiest month is February, followed by January and April. February’s average wind speed of around 11.4 knots (13.2 MPH or 21.2 KPH) is considered “a moderate breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid February where average top sustained speeds reach 27.4 knots, which is considered a strong breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in White Sulphur Springs.

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 11.1 Significant breeze 21.1 Strong breeze
Feb 11.4 Significant breeze 22.1 Very strong breeze
Mar 10.6 Gentle breeze 21.3 Strong breeze
Apr 11 Significant breeze 21.6 Strong breeze
May 8.5 Gentle breeze 17.7 Strong breeze
Jun 8.7 Gentle breeze 19.3 Strong breeze
Jul 7.6 Gentle breeze 17.1 Strong breeze
Aug 7.8 Gentle breeze 18.5 Strong breeze
Sep 7.8 Gentle breeze 17.1 Strong breeze
Oct 9.2 Gentle breeze 18.9 Strong breeze
Nov 10.6 Gentle breeze 21.3 Strong breeze
Dec 9.9 Gentle breeze 21 Strong breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 50.9%
Feb 56%
Mar 48.8%
Apr 46%
May 56%
Jun 49.5%
Jul 35.8%
Aug 33.1%
Sep 35.4%
Oct 47.3%
Nov 50.5%
Dec 54.1%


Is it Safe to Travel to White Sulphur Springs?

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 White Sulphur Springs, MT, US is July, followed by June and August. 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 White Sulphur Springs in December. 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 somewhat extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 46.8 in December means 46.8% of the tourists vs. July.



Overall White Sulphur Springs Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 64.4°F (18°C) and 33.5°F (0.8°C) with warmer temperatures in the later months. Rain is somewhat common with 2 to 8 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 comfortable. These months see the most precipitation with 4 to 7 days of precipitation per month. June – August is the busiest season for tourism in White Sulphur Springs, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 77.2°F (25.1°C) and 38.7°F (3.7°C), which will feel chilly given the humidity and wind. It rains or snows a normal amount: 2 to 4 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 White Sulphur Springs to be enjoyable for warm weather travelers. The average high during this season is between 50.1°F (10.1°C) and 14.4°F (-9.8°C). On average, it rains or snows a smalll amount: consistently 3 times per month. These times of year are the slowest with tourists.


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