Keystone weather in May (South Dakota, United States of America)
Is May a good time to explore Keystone weather-wise? Discover if this is the best time for your journey with our detailed monthly weather breakdown.
Temperatures
May in Keystone generally includes moderate temperatures and high rainfall. During the daylight hours, temperatures often reach 17°C. After dark they usually decrease to around 4°C.
Precipitation
Keystone in May usually receives high rainfall, averaging around 114 mm for the month. It is the wettest month of the year, so an umbrella might come in handy. You can typically expect 15 days days of rain this month, based on climate records.If you prefer dry days with pleasant temperatures, June, July, August and September typically offer the best circumstances. While January, February and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Keystone climate page with graphs.
Keystone, monthly averages in May
Min Temperature
4°C
Max Temperature
17°C
Chance of Rain
50%
Precipitation
114 mm
Rainy days
15 days
Where to go in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in this month?
For visitors traveling to Keystone, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Interested in more climate information?
This site provides you with all the information you need about the climate in Keystone.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
