After the winds calmed down, overnight low temperatures began to fall by the morning of the 2nd. San Joaquin Valley fog was generally limited once the cooler, drier air set up over the central California Interior. The eastern, or cool, side of the upper-level ridge remained anchored over the area for the next several days, allowing cool polar air to move from Canada into the region. Basically, the region was sandwiched between an upper-level trough over the Great Basin and upper-level ridge that was centered off the coast; this is a typical pattern that ushers in cooler, generally dry, polar air from the north. Low temperatures fell as low as the lower 20s in Hanford and Lemoore during the first week of the month, including the 7th and 8th. In addition, the Kern County mountain and desert areas had lows in the teens during this period (i.e., Tehachapi, Glennville, Edwards AFB, and China Lake). The airmass began to gradually moderate on the 9th until the 11th, and valley fog returned to the region.

Frost/Freeze in W CENTRAL S.J. VALLEY, CALIFORNIA
From 04-DEC-11 00:00:00 to 04-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in SW S.J. VALLEY, CALIFORNIA
From 03-DEC-11 00:00:00 to 03-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in SE S.J. VALLEY, CALIFORNIA
From 03-DEC-11 00:00:00 to 03-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in W CENTRAL S.J. VALLEY, CALIFORNIA
From 05-DEC-11 00:00:00 to 05-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in E CENTRAL S.J. VALLEY, CALIFORNIA
From 05-DEC-11 00:00:00 to 05-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in SW S.J. VALLEY, CALIFORNIA
From 05-DEC-11 00:00:00 to 05-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in SE S.J. VALLEY, CALIFORNIA
From 05-DEC-11 00:00:00 to 05-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in SE S.J. VALLEY, CALIFORNIA
From 06-DEC-11 00:00:00 to 06-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in SW S.J. VALLEY, CALIFORNIA
From 06-DEC-11 00:00:00 to 06-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in E CENTRAL S.J. VALLEY, CALIFORNIA
From 06-DEC-11 00:00:00 to 06-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in W CENTRAL S.J. VALLEY, CALIFORNIA
From 06-DEC-11 00:00:00 to 06-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in W CENTRAL S.J. VALLEY, CALIFORNIA
From 07-DEC-11 00:00:00 to 07-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in E CENTRAL S.J. VALLEY, CALIFORNIA
From 07-DEC-11 00:00:00 to 07-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in SW S.J. VALLEY, CALIFORNIA
From 07-DEC-11 00:00:00 to 07-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in SE S.J. VALLEY, CALIFORNIA
From 07-DEC-11 00:00:00 to 07-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in W CENTRAL S.J. VALLEY, CALIFORNIA
From 02-DEC-11 03:00:00 to 02-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in E CENTRAL S.J. VALLEY, CALIFORNIA
From 02-DEC-11 03:00:00 to 02-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in SW S.J. VALLEY, CALIFORNIA
From 02-DEC-11 03:00:00 to 02-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in SE S.J. VALLEY, CALIFORNIA
From 02-DEC-11 03:00:00 to 02-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in W CENTRAL S.J. VALLEY, CALIFORNIA
From 03-DEC-11 00:00:00 to 03-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in E CENTRAL S.J. VALLEY, CALIFORNIA
From 03-DEC-11 00:00:00 to 03-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in E CENTRAL S.J. VALLEY, CALIFORNIA
From 04-DEC-11 00:00:00 to 04-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in SW S.J. VALLEY, CALIFORNIA
From 04-DEC-11 00:00:00 to 04-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Frost/Freeze in SE S.J. VALLEY, CALIFORNIA
From 04-DEC-11 00:00:00 to 04-DEC-11 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet