Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

The May 2015 climate summaries for Big Piney, Buffalo, Casper, Greybull, Lake Yellowstone, Lander, Riverton, Rock Springs, and Worland are now available online.

Overall, May was cooler than average across most sites, and much wetter than average. Most sites, other than Big Piney (slightly warmer than average) and Lake Yellowstone (2nd warmest May on record), reported cooler than average temperatures for the month of May. Three sites even saw Top 10 coldest Mays. These sites were: Buffalo (4th coldest), Riverton (4th coldest), and Worland (9th coldest).

The big story during May 2015 was the well above average precipitation reported. All sites experienced precipitation numbers at least in the Top 10 for wettest Mays. Buffalo, Lake Yellowstone, Lander, Riverton, and Rock Springs even received enough precipitation to be in the Top 5 for wettest Mays See the links below for details for individual sites or click here for Water Year Precipitation summaries for more locations.

If you would like additional/more in-depth climate information, please refer to our Climate Page. Under the Observed Weather tab, you can find the Daily Climate Report (CLI), the Preliminary Monthly Climate Data (CF6), the Monthly Weather Summary (CLM), the Regional and State Summary (RTP/STP). The Daily Climate Report will have the weather data for the day (from midnight to 1159 pm). The Monthly Climate Data will have this data for each day of the month, compilying all the daily data into one form. The Regional and State Summaries will have temperature and precipitation data for various locations across the state, updated 4 times a day.