2014: A strong Pacific storm brought heavy rain on 12/12 and this day.
Widespread rainfall amounts of one to 1.5 inches fell in the coast and valley areas.
Mountain locations got up to four inches. River rises in the San Diego River resulted in a levee breach which flooded the parking lot of Qualcomm Stadium.
Several other roadways in San Diego County were closed due to flooding with mud and debris in the road, especially near the Tijuana River Valley.
2012: Heavy rain from a winter storm spread rainful across San Diego metro area of 1.25"-2". The rain triggered an 8-ton 6-foot diameter boulder to roll into a Poway home.
There were also numerous flood related issues on the roadways,including a few that required swift water rescues.
High tide and flooding runoff combined to flood PCH in Seal Beach and Sunset Beach.
Some garages were inundated.
2008: Strong downslope winds on the west and north sides of the Las Vegas Valley tore down
trees, billboards and signs.
1995: A funnel cloud was observed near Fullerton airport.
1995: Severe thunderstorm activity in the Valley: 1" diameter hail was observed in Hanford and up to ¾" diameter hail fell in Sanger.
1994: Two waterspouts were observed about a half mile off Newport Beach.
1993: Heavy snow was reported in portions of Monterey County.
1987: Strong Santa Ana winds blew.
In San Bernardino, gusts topped 60 mph with some gusts up to 80 mph around San Bernardino.
Strong damaging winds also hit San Diego County and 38 mph was recorded at San Diego.
80 power poles were blown down within a half mile stretch in Fontana and Rancho Cucamonga.
One was injured when a tree fell on a truck.
Downed tree limbs damaged cars, homes and gardens.
Power poles and freeway signs were damaged.
A parked helicopter was blown down a hillside in Altadena.
Trees were blown down on power lines causing power outages in San Diego County.
One was killed by a Eucalyptus tree falling on a truck in Spring Valley.
1984: Wind gusts to 65 mph at Lost Hills and to 50 mph at Blackwell in western Kern County.
1972: Coldest high ever recorded at Fresno – only 32° F.
1967: Snow fell in the lower elevations on this day.
A heavy snow event in the mountains also began on this day and ended on 12.19.
At lower elevations on this day, 6" fell in Temecula,5" in Fallbrook, 4.5" in Anza Borrego State Park (the greatest snowfall on record),3" in Borrego Springs,2" in Carlsbad and a light covering was reported over many San Diego mesas.
The only other measurable snowfall on record in Borrego Springs occurred two days later (two inches on 12.15).
The entire period of snow brought 50" to Mt. Laguna, 38" in Idyllwild, two feet to Palomar Mountain, and 12"-18" inches to the higher elevations.
Marble size hail hit Palomar Mountain from thunderstorms preceding the snow storm.
One freezing death resulted, numerous schools and highways were closed, transportation was disrupted and there were power outages.
Heavy rain that began on 12.12 ended on 12.15.
There were two drowning deaths in San Diego County.
1948: 17" of snow fell at Glenbrook, NV (east shore Lake Tahoe).
1932: The morning low temperature at Markleeville was -22° F.
1932: A frigid storm hit the region on 12.12 and on this day.
These days were likely the coldest on record in Southern California.
On this day the high temperature in Santa Ana was 45° F, the lowest maximum temperature on record.
Source: NWS San Francisco/Monterey, Hanford, Reno, Las Vegas, & San Diego