United States Department of Agriculture
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MONTANA SNOTEL Year-to-Date Precipitation Update Graph



As of FRIDAY: JANUARY 18 , 2019
BasinYear-to-Date Precipitation Percent of Average
KOOTENAI RIVER BASINPercentage Bar 81% 81%
FLATHEAD RIVER BASINPercentage Bar 89% 89%
UPPER CLARK FORK RIVER BASINPercentage Bar 96% 96%
BITTERROOT RIVER BASINPercentage Bar 94% 94%
LOWER CLARK FORK RIVER BASINPercentage Bar 87% 87%
JEFFERSON RIVER BASINPercentage Bar 87% 87%
MADISON RIVER BASINPercentage Bar 81% 81%
GALLATIN RIVER BASINPercentage Bar 104% 104%
MISSOURI HEADWATERSPercentage Bar 87% 87%
HEADWATERS MISSOURI MAINSTEMPercentage Bar 93% 93%
SMITH, JUDITH, AND MUSSELSHELL RIVER BASINSPercentage Bar 87% 87%
SUN, TETON AND MARIAS RIVER BASINSPercentage Bar 78% 78%
MISSOURI MAINSTEM RIVER BASINPercentage Bar 86% 86%
ST MARY AND MILK RIVER BASINSPercentage Bar 88% 88%
UPPER YELLOWSTONE RIVER BASINPercentage Bar 91% 91%
WIND RIVER BASIN (WYOMING)Percentage Bar 73% 73%
SHOSHONE RIVER BASIN (WYOMING)Percentage Bar 95% 95%
BIGHORN RIVER BASIN (WYOMING)Percentage Bar 87% 87%
TONGUE RIVER BASIN (WYOMING)Percentage Bar 80% 80%
POWDER RIVER BASIN (WYOMING)Percentage Bar 84% 84%
LOWER YELLOWSTONE RIVER BASINPercentage Bar 83% 83%

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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