2015: Severe thunderstorms erupted in the Inland Empire and Coachella Valley.
Quarter-sized hail was reported in Calimesa and a microburst hit Palm Desert. Estimated wind gusts from both storms were 70 mph.
Calimesa suffered wind damage.
Palm Desert and Indian Wells incurred damage from the microburst.
2011: Strong thunderstorm winds caused some trees to fall and ensuing property damage in Victorville.
2003: A thunderstorm downburst struck Edwards AFB and caused damage to NASA facilities – breaking windows, knocking down trees and moving a couple of large aircraft.
2003: Strong thunderstorms in the San Diego County Mountains produced heavy rains and strong winds.
Campo reported an impressive 1.88" of rain in one hour.
A flash flood in the San Felipe Valley sent a five-foot wall of mud and debris cascading over highway S2, closing it.
1998: An F0 tornado was reported north of Reno, NV, near Black Springs and Raleigh Heights.
1995: San Francisco had a high temperature of 99° F.
1991: Thunderstorms brought 0.77" of rainfall to La Mesa, 0.58" to El Cajon, 0.56" to Santee, 0.33" to Balboa Park, and 0.23" to San Diego Mission Valley and Lindbergh Field (the greatest daily amount on record at Lindbergh Field for July).
Mobile homes were flooded in La Mesa and homes and streets were flooded in East City Heights and Mission Gorge.
Trees were downed and power outages resulted.
1984: A 27,000 cubic feet per second flash flood in Weldon (near Lake Isabella).
1980: A thunderstorm with winds to 80 mph rampaged through Needles.
The storm caused significant damage including 55 downed power poles.
An off duty sheriff was killed instantly when he was struck by lightning.
1972: During a stretch from 7.28 to this day, the temperature rose each day to 100° F in Palomar Mountain.
It is the highest temperature on record and has been reached on 9 days.
1972: Inyokern established an all-time record high for any month of 119° F.
1961: A cloudburst and high winds struck Las Vegas, North Las Vegas and parts of Paradise Valley, NV.
Streets were flooded, trees uprooted, windows smashed, phone cables cut, autos stalled, power outages, and a new roller rink was damaged in the havoc created by the storm.
The roller rink which was being built on Foremaster Lane near Woodlawn Cemetery received an estimated $25,000 to $30,000 in damage.
1959: A severe thunderstorm produced a downburst in the city of Lancaster that toppled trees and utility lines, including a string of 51 poles in a row.
This occurred during the El Niño of 1957-58.
On this day a severe thunderstorm brought heavy rain and hail more than 1" in diameter to Barstow.
It was called "the worst storm in 60 years".
A flash flood resulted and actually moved a house off its foundation.
Residents had to escape through windows from flooded houses in Lenwood.
Tons of mud engulfed Highway 66.
The hail damaged roofs, cars, and windows.
Another thunderstorm struck Twentynine Palms on this day, and floodwaters and mud flowed through the streets and into a few buildings.
1955: Coldest July day on record in Bakersfield - a high temperature of only 67° F, the lowest maximum temperature on record for the month of July, and a low minimum of 45° F, the coldest the mercury has ever dropped to here in July.
This is also the only time the temperature has dropped below 50° F in Bakersfield in July.
1946: A heavy thunderstorm struck Twentynine Palms.
One house was destroyed by a wall of water.
The garage and car in it were carried a half mile away.
1944: It was 30° F in Idyllwild, the latest date in the season to record a freezing temperature.
1930: The high temperature was 100° F in San Diego, the highest on record for July and the only time it has hit 100° F in July.
1906: Fresno records its' 28th 100° F or better high temperature in July.
This set a record for the most triple digit high temperatures ever in the month of July, which was also tied in 1931.
Source: NWS San Francisco/Monterey, Hanford, Reno, Las Vegas, & San Diego
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