1989: 1.5" of snow fell in Big Bear Lake, the earliest measurable snowfall of the season on record.
1984: Over 1" of rain fell in just 45 minutes in Lake Isabella washing out a ¼ mile of a road, covering others with mud and destroying 2 mobile homes.
1984: A tropical air mass lasting two weeks and high sea surface temperatures led to record minimum temperature records set each day except one at San Diego starting on 9.4 and ending on this day.
Low temperatures ranged from 73° F to the highest minimum of all time of 78° F on 9.9 and 9.17.
The high was 100° F on 9.8.
1965: The morning low temperature at Reno, NV was a cold 20° F.
1963: Northeastward moving Tropical Storm Katherine made landfall in northern Baja California with rainfall of up to 6.5" in the mountains from 9.17 to this day.
3.86" fell in San Bernardino, 3.44" in Riverside, 2.66" in Victorville and Cuyamaca, 1.9" in San Diego, 1.88" in Indio, and 1.62" in Santa Ana.
Disastrous flooding and erosion hit a northern San Bernardino neighborhood.
1959: Palo Alto received 1.78" of rain.
1952: A west-northwestward moving tropical storm southwest of Baja California dissipated.
Moisture from this storm resulted in rainfall of up to 2" in the mountains and deserts starting on this day and ending on 9.21, with most falling on this day.
This occurred during the El Niño of 1951-52.
1939: A heat wave that started on 9.18 and ended on 9.22 preceded the arrival of a tropical storm called "El Cordonazo."
High temperature records of more than 95° F occurred at San Diego each day, with the highest temperature reaching 106° F on 9.21.
A tropical cyclone moving northwestward, just off the west coast of Mexico, moved into southern Baja California and dissipated.
The moisture from this tropical cyclone generated rainfall of up to 3" in the deserts and mountains starting on this day and ending on 9.21.
Source: NWS San Francisco/Monterey, Hanford, Reno, & San Diego
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1984: Over 1" of rain fell in just 45 minutes in Lake Isabella washing out a ¼ mile of a road, covering others with mud and destroying 2 mobile homes.
1984: A tropical air mass lasting two weeks and high sea surface temperatures led to record minimum temperature records set each day except one at San Diego starting on 9.4 and ending on this day.
Low temperatures ranged from 73° F to the highest minimum of all time of 78° F on 9.9 and 9.17.
The high was 100° F on 9.8.
1965: The morning low temperature at Reno, NV was a cold 20° F.
1963: Northeastward moving Tropical Storm Katherine made landfall in northern Baja California with rainfall of up to 6.5" in the mountains from 9.17 to this day.
3.86" fell in San Bernardino, 3.44" in Riverside, 2.66" in Victorville and Cuyamaca, 1.9" in San Diego, 1.88" in Indio, and 1.62" in Santa Ana.
Disastrous flooding and erosion hit a northern San Bernardino neighborhood.
1959: Palo Alto received 1.78" of rain.
1952: A west-northwestward moving tropical storm southwest of Baja California dissipated.
Moisture from this storm resulted in rainfall of up to 2" in the mountains and deserts starting on this day and ending on 9.21, with most falling on this day.
This occurred during the El Niño of 1951-52.
1939: A heat wave that started on 9.18 and ended on 9.22 preceded the arrival of a tropical storm called "El Cordonazo."
High temperature records of more than 95° F occurred at San Diego each day, with the highest temperature reaching 106° F on 9.21.
A tropical cyclone moving northwestward, just off the west coast of Mexico, moved into southern Baja California and dissipated.
The moisture from this tropical cyclone generated rainfall of up to 3" in the deserts and mountains starting on this day and ending on 9.21.
Source: NWS San Francisco/Monterey, Hanford, Reno, & San Diego
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