|The Summer Solstice officially occurs at 0504z, June 21. This is 12:04 am CDT on Friday, June 21, 2013 or 11:04 pm MDT on Thursday, June 20, 2013.
The summer solstice occurs when the sun is positioned at it's furthest northern position from the Earth's equator. During the day of the summer solstice, locations north of the equator see their most minutes of daylight for the year. Locations to the south of the equator will see the least minutes of daylight for the year. Western and North Central Nebraska usually can experience very warm temperatures to start the first day of summer, however on occasion a cool and wet day will occur. Normal highs for the first day summer for the region are in the lower to mid 80s, and normal lows are in the mid 50s. Below are the records for the first day of Summer (which varies from June 20th to June 21st) for North Platte and Valentine.