Update Report Air & Water Database Update Report Update Report Air & Water Database Update Report


Summary of Western US SNOTEL Snow/Precipitation Update Report
Based on Mountain Data from NRCS SNOTEL Sites
**Provisional data, subject to revision**
Data based on the first reading of the day (typically 00:00) for Friday, April 12, 2024
State/River Basin Snow Water
Equivalent
Water Year-to-Date
Precipitation
# of
Sites
Percent of
Median
# of
Sites
Percent of
Median
Alaska 29/59 119    48/59 106   
Arizona 14/23 375*   18/23 100   
California 32/32 126    32/32 101   
Colorado 100/105 107    102/105 99   
Idaho North of Salmon River 30/31 77    29/31 85   
Idaho South of Salmon River 65/65 106    65/65 102   
Montana 87/91 74    87/91 83   
Nevada 30/32 166    31/32 122   
New Mexico 20/21 167    21/21 103   
Oregon 73/81 108    75/81 103   
Utah 89/90 132    90/90 113   
Washington 69/76 69    67/76 88   
Wyoming 80/85 97    81/85 102   
Arkansas River Basin 6/6 120    5/6 102   
Colorado River Basin 102/108 109    105/108 103   
Columbia River Basin 257/266 86    256/266 94   
Missouri River Basin 45/48 76    45/48 85   
Rio Grande River Basin 28/29 127    29/29 100   
The Great Basin 104/105 136    105/105 112