Yellowstone National Park in may: average Weather, Temperature and Climate
Weather in Yellowstone National Park in may 2025
The weather in Yellowstone National Park in may comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout may
very bad weather 698.1cm
Weather at 6am
29°F
Snow showers
29% of time
28%
23%
16%
Weather at 12pm
47°F
Clear/Sunny
36% of time
24%
16%
12%
Weather at 6pm
47°F
Moderate or heavy rain in area with thunder
31% of time
27%
15%
9%
Weather at 3am
29°F
41%
28%
14%
12%
Evolution of daily average temperature and precipitation in Yellowstone National Park in may
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Yellowstone National Park in may.
The climate of Yellowstone National Park in may is very bad
the weather in Yellowstone National Park in may is wet (with 4.6in of precipitation over 9 days). This is better than the previous month since in april it receives an average of 4.3in of rainfall over 8 days.
The climate is relatively cool in that locality this month, but it is endurable when dressing hot. Temperatures are up to 49°F. The seasonal minimum is 29°F. Thus, the mean temperature average on this month of may in Yellowstone National Park is 38°F. These temperatures are far removed from those records observed in Yellowstone National Park in may with a maximum record of 72°F in 2018 and a minimum record of -5°F in 2013. You need to prepare to have about 24 days with temperatures down below 32°F, or 77% of time.
On average, in Yellowstone National Park, the days of may last 14:49. The sun rises at 04:55 and sets at 19:44.
May: another location in the United States (USA)?
If you want to go to the United States (USA) in may, there are destinations with better weather than Yellowstone National Park:
In may, California, Hawaii (Honolulu), Las Vegas, Phoenix (Arizona), Amarillo (Texas) and Big Bend National Park (Texas) have perfect weather.
Furthermore, Louisiana, Washington D. C., Atlanta, Boston, Chicago and Dallas have good weather.
Finally, Salt Lake City, Denver, Long Beach (Washington), Santa Fe (New Mexico), Boise (Idaho) and Bryce Canyon have a tolerable climate, but better than Yellowstone National Park.
Seasonal average climate and temperature of Yellowstone National Park in may
Check below seasonal norms These datas are generated from the weather statements of the past years of may.
| May | |||||
| Outside temperature | |||||
| Average temperature | 38°F | ||||
| Highest temperature | 49°F | ||||
| Lowest temperature | 29°F | ||||
| Highest record temperature | 72°F (2018) | ||||
| Lowest record temperature | -5°F (2013) | ||||
| Number of days at +65°F | 2 day(s) (6%) | ||||
| Number of days at -32°F | 24 day(s) (77%) | ||||
| Wind | |||||
| Wind speed | 16km/h | ||||
| Wind temperature | 23°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4.6in | ||||
| Number of days with rainfall | 9 day(s) (28%) | ||||
| Record daily rainfall | 1.6in (2011) | ||||
| Snowfall | 698.1cm | ||||
| Other climate data | |||||
| Humidity | 91% | ||||
| Visibility | 7.82km | ||||
| Cloud cover | 40% | ||||
| UV index | 2 | ||||
| Daily sunshine hours | 14 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 04:55 | ||||
| Time of sunset | 19:44 | ||||
| Length of day | 14:49 | ||||
| Our opinion about the weather in may | |||||
| Our opinion at whereandwhen.net | very bad | ||||
How was the weather last may?
Here is the day by day recorded weather in Yellowstone National Park in may 2024:
22°F to 31°F
16°F to 32°F
18°F to 38°F
22°F to 47°F
34°F to 47°F
23°F to 32°F
23°F to 31°F
25°F to 36°F
25°F to 43°F
27°F to 49°F
31°F to 54°F
36°F to 58°F
40°F to 56°F
36°F to 45°F
32°F to 49°F
34°F to 56°F
38°F to 52°F
29°F to 49°F
34°F to 45°F
29°F to 45°F
29°F to 41°F
27°F to 38°F
25°F to 36°F
31°F to 43°F
32°F to 40°F
31°F to 43°F
29°F to 54°F
36°F to 61°F
41°F to 52°F
31°F to 45°F
31°F to 52°F
Map: other cities in the United States (USA) in may
Cities near Yellowstone National Park:
| Grand Teton National Park (Wyoming) in may | very bad weather |
| Jackson Hole in may | very bad weather |
| Cody (Wyoming) in may | very bad weather |
| Helena (Montana) in may | very bad weather |
| Montana in may | very bad weather |
| Wyoming in may | tolerable weather |
| Salt Lake City in may | tolerable weather |
| Boise (Idaho) in may | tolerable weather |
| Glacier National Park (Montana) in may | very bad weather |
| Utah in may | tolerable weather |
| Mount Rushmore in may | tolerable weather |
| Arches National Park (Utah) in may | good weather |
Click over cities on the map for information about the weather in may.
Yellowstone National Park
perfect weather
good
tolerable
bad
very bad
Weather data for Yellowstone National Park in may:
Weather data for Yellowstone National Park for may are derived from an average of the weather forecast since 2009 in Yellowstone National Park. There is a margin of error and these forecasts are to be considered as general information only. The weather in Yellowstone National Park can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Yellowstone National Park.