1 The expected value of the difference between all possible sample means is equal to the difference between population means. 2  Thus, E(x 1 - x 2) = Î¼ d = Î¼ 1 - Î¼ 2. 3  The standard deviation of the difference between sample means (Ï d) is approximately equal to:
Weather in Jackson Hole in May 2018. Expect 15Â°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Jackson Hole in May. Check more long-term weather averages for Jackson Hole in May before you book your next holiday to Wyoming in 2018. More about Jackson Hole. Weather overview; More destinations; Monthly averages; Weather by month; 5-day weather forecast
The temperature in Jackson Hole can vary quite a bit from one hour to the next, so a general rule of thumb is to dress in layers. In the summer, it is not uncommon to wake up to temps in the 30s and then put shorts on later in the day as the temperature rises into the 70s. This is common in the mountains.