Utah SNOTEL Precipitation Summary 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 Tuesday, September 17, 2019
Basin   Site Name Elev (ft) Month to Date Precipitation (in) Median Monthly Total (in) Pct of Monthly Total Water Year to Date Precipitation (in) Median Annual Total (in) Pct of Annual Total RAFT RIVER Basin Index (%) 61    116    BEAR RIVER Basin Index (%) 120    111    WEBER-OGDEN RIVERS Basin Index (%) 99    125    PROVO R.-UTAH LAKE-JORDAN R. Basin Index (%) 109    133    TOOELE VALLEY-VERNON CREEK Basin Index (%) 69    133    DEEP CREEK MOUNTAINS Basin Index (%) *   *   NORTHEASTERN UINTAHS Basin Index (%) 79    109    DUCHESNE RIVER Basin Index (%) 83    133    PRICE-SAN RAFAEL Basin Index (%) 57    132    DIRTY DEVIL Basin Index (%) 28    121    SOUTH EASTERN UTAH Basin Index (%) 41    130    UPPER SEVIER RIVER Basin Index (%) 54    129    SAN PITCH RIVER Basin Index (%) 62    130    LOWER SEVIER RIVER Basin Index (%) 63    141    BEAVER RIVER Basin Index (%) 112    145    ESCALANTE RIVER Basin Index (%) 17    121    SOUTHWESTERN UTAH Basin Index (%) 27    141

-M  = Missing data.
 *  = Analysis may not provide a valid measure of conditions.
N/A = Not available.

Footnotes for median and average:
(##) = If less than 30 years are available, this value specifies the number of years used for the median and average calculations.
Sites with less than 10 years available do not have medians or averages.

The % Monthly Total represents the precipitation accumulated from the 1st day of the current
month through the current day found at selected SNOTEL sites in or near the basin compared
to the Median (or Average) total precipitation for the current month for those sites.

The % Annual Total represents the precipitation accumulated from the start of the water year
(Oct 1) through the current day found at selected SNOTEL sites in or near the basin compared
to the Median (or Average) total precipitation for the entire water year for those sites.


Contact your state water supply staff for assistance.

Medians and averages are calculated for the period 1991-2020.

Provisional data, subject to revision.

* Site -- Either: (a) the current value is missing; (b) the median or average for the day is not available or is zero; or (c) for snow water equivalent, the median or average for the day is less than 10% of the maximum median or average value for the year.

* Basin - More than half of the stations for a basin with normals report missing or invalid data.

The basin index is calculated as the sum of the valid current values divided by the sum of the corresponding medians or averages and the resulting fraction multiplied by 100.