Early September heat starting in August.

Excessive Heat in APPLE AND LUCERNE VALLEYS, CALIFORNIA
From 01-SEP-22 00:00:00 to 09-SEP-22 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The SDAPL observation site in Apple Valley observed daily highs ranging from the upper 90s to upwards of 109 degrees through much of early September. The highest daily maximum temperature of 109 degrees occurred on the afternoons of Thursday, September 1st, Friday September 2nd, and Tuesday September 6th, with a high of 105 degrees occurring on both the 3rd of September. Highs on Friday, September 9th were significantly cooler due to clouds and rain associated with the approach of Hurricane Kay, which ended the heat wave.

Excessive Heat in SAN DIEGO COUNTY DESERTS, CALIFORNIA
From 01-SEP-22 00:00:00 to 09-SEP-22 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The SDOCL observation site in Ocotillo Wells observed daily highs ranging from 103 degrees to upwards of 116 degrees through much of early September. The highest daily maximum temperature of 116 degrees occurred on the afternoon of Tuesday September 6th, with a high of 115 degrees occurring on both the 5th of September. Highs on Friday, September 9th were significantly cooler due to clouds and rain associated with the approach of Hurricane Kay, which ended the heat wave.

Excessive Heat in SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS - THE INLAND EMPIRE, CALIFORNIA
From 01-SEP-22 00:00:00 to 09-SEP-22 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at Riverside Airport observed daily highs ranging from 100 to 110 degrees through much of early September. The highest daily maximum temperature of 110 degrees occurred on the afternoon of Sunday, September 4th, with highs of 107-109 also occurring on several days during this time. Highs on Saturday, September 10th were significantly cooler due to clouds and rain associated with the approach of Hurricane Kay, which ended the heat wave.

Excessive Heat in ORANGE COUNTY INLAND, CALIFORNIA
From 01-SEP-22 00:00:00 to 09-SEP-22 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at Fullerton Airport observed daily highs ranging from the middle to upper 90s through much of early September, with several days also exceeding 100 degrees for a daily high. The highest daily maximum temperature of 111 degrees occurred on the afternoon of Sunday, September 4th, with a high of 103 occurring on the 3rd and 8th of September. Highs on Saturday, September 10th were significantly cooler due to clouds and rain associated with the approach of Hurricane Kay, which ended the heat wave.

Excessive Heat in SAN DIEGO COUNTY MOUNTAINS, CALIFORNIA
From 01-SEP-22 00:00:00 to 09-SEP-22 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The JULC1 observation site in Julian observed daily highs ranging from the upper 80s to the middle and upper 90s through much of early September. The highest daily maximum temperature of 98 degrees occurred on the afternoon of Tuesday, September 6th, with a high of 95 occurring on the 1st of September. Highs on Friday, September 9th were significantly cooler due to clouds and rain associated with the approach of Hurricane Kay, which ended the heat wave.

Excessive Heat in RIVERSIDE COUNTY MOUNTAINS, CALIFORNIA
From 01-SEP-22 00:00:00 to 09-SEP-22 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The NZAC1 observation site in Anza observed daily highs ranging from the lower 90s to upwards of 101 degrees through much of early September. The highest daily maximum temperature of 101 degrees occurred on the afternoon of Thursday, September 1st, with a high of 99 degrees occurring on the 6th of September. Highs on Friday, September 9th were significantly cooler due to clouds and rain associated with the approach of Hurricane Kay, which ended the heat wave.

Excessive Heat in SAN BERNARDINO COUNTY MOUNTAINS, CALIFORNIA
From 01-SEP-22 00:00:00 to 09-SEP-22 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

The Big Bear City Airport observed daily highs ranging from the lower to middle 80s through much of early September. The highest daily maximum temperature of 86 degrees occurred on the afternoon of Tuesday, September 6th, with a high of 84 degrees occurring on the 2nd of September. Highs on Friday, September 9th were significantly cooler due to clouds and rain associated with the approach of Hurricane Kay, which ended the heat wave.

Excessive Heat in SANTA ANA MOUNTAINS AND FOOTHILLS, CALIFORNIA
From 01-SEP-22 00:00:00 to 09-SEP-22 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

The El Cariso RAWS site observed daily highs ranging from the middle 90s to upwards of 107 degrees through much of early September. The highest daily maximum temperature of 107 degrees occurred on the afternoon of Tuesday, September 6th, with a high of 106 degrees occurring on the 1st and 5th of September. Highs on Friday, September 9th were significantly cooler due to clouds and rain associated with the approach of Hurricane Kay, which ended the heat wave.

Excessive Heat in COACHELLA VALLEY, CALIFORNIA
From 01-SEP-22 00:00:00 to 09-SEP-22 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The Palm Springs International Airport observed daily highs ranging from 106 degrees to upwards of 114 degrees through much of early September. The highest daily maximum temperature of 114 degrees occurred on the afternoon of Tuesday September 6th, with a high of 113 degrees occurring on both the 5th of September. Highs on Friday, September 9th were significantly cooler due to clouds and rain associated with the approach of Hurricane Kay, which ended the heat wave.

Excessive Heat in SAN DIEGO COUNTY COASTAL AREAS, CALIFORNIA
From 01-SEP-22 00:00:00 to 09-SEP-22 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at San Diego International Airport observed daily highs reaching at least the middle to upper 80s through much of early September, with several days reaching the lower to middle 90s. The highest daily maximum temperature of 95 degrees occurred on the afternoon of Saturday September 3rd, with a high of 94 occurring on Thursday, September 8th. Highs on Saturday, September 10th were significantly cooler due to clouds and rain associated with the approach of Hurricane Kay, which ended the heat wave.

Excessive Heat in ORANGE COUNTY COASTAL, CALIFORNIA
From 01-SEP-22 00:00:00 to 09-SEP-22 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at John Wayne International Airport observed daily highs reaching at least the lower to middle 90s through much of early September, with several days ranging from 97 to 106 degrees. The highest daily maximum temperature of 106 degrees occurred on the afternoon of Sunday September 4th, with a high of 102 occurring on Thursday, September 8th. Highs on Saturday, September 10th were significantly cooler due to clouds and rain associated with the approach of Hurricane Kay, which ended the heat wave.

Excessive Heat in SAN DIEGO COUNTY VALLEYS, CALIFORNIA
From 01-SEP-22 00:00:00 to 09-SEP-22 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

The ASOS at Ramona Airport observed daily highs ranging from 100 to 107 degrees through much of early September. The highest daily maximum temperature of 107 degrees occurred on the afternoon of Wednesday September 7th, with a high of 104 degrees occurring on all of the September 1st, 4th, and 6th. Highs on Saturday, September 10th were significantly cooler due to clouds and rain associated with the approach of Hurricane Kay, which ended the heat wave.

Excessive Heat in SAN GORGONIO PASS NEAR BANNING, CALIFORNIA
From 01-SEP-22 00:00:00 to 09-SEP-22 23:59:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: RAWS

The Beaumont AWOS site observed daily highs ranging from the upper 90s to upwards of 105 degrees through much of early September. The highest daily maximum temperature of 105 degrees occurred on both the afternoons of Thursday, September 1st and Tuesday September 6th, with a high of 102 degrees occurring on both the 4th and 5th of September. Highs on Friday, September 9th were significantly cooler due to clouds and rain associated with the approach of Hurricane Kay, which ended the heat wave.