Extreme heat will continue across the Pacific Northwest into midweek before finally waning. Hot temperatures, dry, gusty conditions, and isolated dry thunderstorms will bring critical fire weather. Heavy rain and thunderstorms are expected across portions of the Southwest, the Sierras, and the central/southern Plains. A series of storms will bring heavy rain and strong winds to southern Alaska. Read More >
| The January 2021 climate summaries for Big Piney, Buffalo, Casper, Greybull, Lake Yellowstone, Lander, Riverton, Rock Springs, and Worland are now available online. |
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The month of January was definitely warmer than normal. With the exception of Casper, every climate site was 2 degrees or more above normal, with only Lake Yellowstone being below normal. Greybull and Worland were both more than 8 degrees warmer. There was a cold spell around the 11th at many locations, and again around the 27th. These were the days of the coldest temperatures. The 13th was pretty much the warmest day of the month. This was due in large part to warm westerly air and a very strong wind storm This was the day that all of our sites had a peak wind ranging from 50 to 70 mph. Lake Yellowstone only hit 40 mph, which is still pretty significant for them. There were several high temperature records tied or broken across the climate stations. Only Lake Yellowstone had a new record low, on the 26th with -18 degrees. Precipitation reports were all below normal in January. Big Piney had their 2nd driest January and Greybull 3rd driest. These records only date back to 1998. The wettest day of the month was the 23rd for most locations. There was a widespread snow event on that day which helped out. The 25-26th had another brief snow event across the area, and that led to a nice cold outbreak on the 26th and 27th. There were a few precipitation records tied or broken in January. Check the CLMs for more specifics on daily records set at the various locations. See the links above for details for individual sites or click here for Water Year Precipitation summaries for more locations. If you would like additional, or more in-depth climate information, please refer to our Climate Page. From the Riverton Home Page, hover over the "Climate and Past Weather" tab, and select the "Local" option. You can then find the Daily Climate Report (CLI), the Preliminary Monthly Climate Data (CF6), the Monthly Weather Summary (CLM), and the Regional Summary (RTP). The Daily Climate Report will have the weather data for the day (from midnight to 1159 pm). The Monthly Climate Data (CF6) will have this data for each day of the month, compiling all the daily data into one form. The Regional Summary will have temperature and precipitation data for various locations across the state, updated 3 times a day. |
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