01-05-2025, 09:27 AM
The Mercury reported that the statewide Sierra Nevada snowpack (1/3rd of CA's water supply) is at 108% of its historic average for Jan. 2 (see graph below). Last year's Sierra snowpack was just 28% of normal on Jan. 2, but by 4/1 it had grown to 111%.
There is a dramatic difference between NorCal and SoCal snowpacks. The Northern Sierra snowpack was 161% of its historical average. Central Sierra was 94%. The Southern Sierra snowpack is only 75% of average. Basically, above I-80, lots of snow.
On Thursday, the state's major reservoirs were at 121% of their historical capacity for early January.
Diamond Valley in Riverside county, which is key to LA water supplies, was 97% full.
Since 10/1/24, SF has received 10.2 inches of rain (121% of normal). LA has received just 4% of its historical average, basically none during that time.
There is a dramatic difference between NorCal and SoCal snowpacks. The Northern Sierra snowpack was 161% of its historical average. Central Sierra was 94%. The Southern Sierra snowpack is only 75% of average. Basically, above I-80, lots of snow.
On Thursday, the state's major reservoirs were at 121% of their historical capacity for early January.
Diamond Valley in Riverside county, which is key to LA water supplies, was 97% full.
Since 10/1/24, SF has received 10.2 inches of rain (121% of normal). LA has received just 4% of its historical average, basically none during that time.
Audaces fortuna iuvat
