United States Department of Agriculture
Natural Resources Conservation Service
National Water and Climate Center Go to Accessibility Information
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MONTANA SNOTEL Year-to-Date Precipitation Update Graph



As of WEDNESDAY: AUGUST 15 , 2018
BasinYear-to-Date Precipitation Percent of Average
KOOTENAI RIVER BASINPercentage Bar 101% 101%
FLATHEAD RIVER BASINPercentage Bar 113% 113%
UPPER CLARK FORK RIVER BASINPercentage Bar 125% 125%
BITTERROOT RIVER BASINPercentage Bar 114% 114%
LOWER CLARK FORK RIVER BASINPercentage Bar 108% 108%
JEFFERSON RIVER BASINPercentage Bar 111% 111%
MADISON RIVER BASINPercentage Bar 107% 107%
GALLATIN RIVER BASINPercentage Bar 116% 116%
MISSOURI HEADWATERSPercentage Bar 112% 112%
HEADWATERS MISSOURI MAINSTEMPercentage Bar 121% 121%
SMITH, JUDITH, AND MUSSELSHELL RIVER BASINSPercentage Bar 109% 109%
SUN, TETON AND MARIAS RIVER BASINSPercentage Bar 123% 123%
MISSOURI MAINSTEM RIVER BASINPercentage Bar 114% 114%
ST MARY AND MILK RIVER BASINSPercentage Bar 100% 100%
UPPER YELLOWSTONE RIVER BASINPercentage Bar 122% 122%
WIND RIVER BASIN (WYOMING)Percentage Bar 100% 100%
SHOSHONE RIVER BASIN (WYOMING)Percentage Bar 128% 128%
BIGHORN RIVER BASIN (WYOMING)Percentage Bar 108% 108%
TONGUE RIVER BASIN (WYOMING)Percentage Bar 93% 93%
POWDER RIVER BASIN (WYOMING)Percentage Bar 94% 94%
LOWER YELLOWSTONE RIVER BASINPercentage Bar 102% 102%

Legend: Percentage Bar Below 70% <70% Percentage Bar 70-90% 70-90% Percentage Bar 91-110% 91-110% Percentage Bar 111-130% 111-130% Percentage Bar Above 130% >130%

* = Data are not available or data may not provide a valid measure of conditions for over half of the sites within the basin.

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