FRESNO, Calif. (January 15, 2013)--A cold snap that left California farmers struggling to protect a $1.5 billion citrus crop was slowly starting to ease Tuesday.
For a fifth night, temperatures in the San Joaquin Valley, the state's agricultural heart, dipped as low as 21 degrees.
In urban centers, it was 39 degrees in downtown Los Angeles early Tuesday, while San Francisco had 37 and San Diego, 36.
Motorists were urged to use caution because of icy conditions in some places.
Black ice was a factor in a seven-car pileup in Oakland Monday and other crashes elsewhere.
Several Lake Tahoe casinos were cleaning up after below-zero temperatures burst sprinkler pipes.
In New Mexico, some public facilities in New Mexico opened later than usual Tuesday because of winter weather conditions that included freezing temperatures and poor driving conditions.