The Badlands climate is variable and unpredictable with temperatures ranging from 116 F to -40F. Most of the scant fifteen inches of annual precipitation fall just before and during the warmer months, often in the form of torrential thunderstorms. June is the wettest month while December and January are the driest. Weather by Month January February March April May June July August September October November December
January visitors will find a cold, windy Badlands. January daytime temperatures vary from a low of -10 to a high of 45 with high winds. Snow is likely with blizzards possible. However, temperatures in the 50s are not uncommon
As in January, February visitors will find a cold, windy Badlands. February daytime temperatures vary from a low of -10 to a high of 45 with high winds. Snow is likely with blizzards possible. Wind chill can take temperatures well below -30.
March in Badlands National Park can be very hard to predict. Temperatures may warm to 60 or hover around 0. Temperatures have dropped as much as 40 degrees in a few hours in March. Blizzards are still very much a reality.
April marks the beginnings of spring in Badlands National Park; however, the worst blizzards have been known to occur to early to mid April. Whatever the temperatures, you can plan on the park being very wet from either snow melt or rain, making trails extremely unpleasant to navigate and unpaved roads impassable. Always check with the Ben Reifel Visitor Center for current conditions. Temperatures may reach the low 60s while night time temperatures will remain below freezing most nights.
Be prepared for a very muddy, rainy visit to Badlands National Park in May. Rain may fall in short showers or may continue for days without a break. The park receives the bulk of its annual precipitation from April through June. All trails and backcountry areas will be slick because of the extremely soft conditions and intermittent showers.
Early June will be quite wet with rain and clouds mixed with sunshine. Frequent dramatic and heavy thunderstorms will occur 30% or more of the evenings. Day time temperatures will start to warm by reaching the 80s by the end of the month.
Badlands' July's are hot and dry with day time temperatures reaching the 90s and warm nights with occasional thunderstorms. Winds will blow out of the north, requiring those exploring the park to wear a hat, sunscreen, and take plenty of water.
The hottest days of the year come in August with temperatures topping 100 not uncommon. Evenings will cool to the mid 70s, making nights very warm. Winds will be commonplace. Occasional thunderstorms can occur.
Starting out hot with temperatures in the 90s and little precipitation, September will start to cool down in the second half of the month, bringing a relief to the hot summer months. This is the best time to explore Badlands National Park.
Although cool, October frequently includes at least a few days in the 80s with sun and pleasant hiking weather. Occasional late October blizzards can occur.
Visitors can count on winter to arrive in November. High winds gust out of the north with snow and occasional white outs. Roads may become impassable. Although some warm days may occur, you should expect day temperatures in the 40s or cooler.
Badlands National Park typically is lightly covered in snow in December with high winds keeping accumulation to a minimum except in drifts next to buildings. Blizzards can occur at any time. However, temperatures as high as 62 have been recorded in December.