Downtown Sacramento Skyline

Auburn Courthouse

Yolo Sunflower Fields

Woodland County Fair

Feather River Bridge

SPARE THE AIR

Historical Data

See how many days air pollution triggered a Spare The Air alert.

2025 - Total (2)

Friday, July 11
Saturday, July 12

2024 - Total (3)

Friday, July 5
Saturday, July 6
Friday, September 9

2023 - Total (7)

Friday, June 30
Saturday, July 1
Thursday, July 13
Friday, July 14
Saturday, July 15
Friday, July 21
Saturday, July 22

2022 - Total (6)

Tuesday, August 16
Friday, August 19
Thursday, September 1
Sunday, September 4
Monday, September 5
Tuesday, September 6

2021 - Total (8)

Friday, June 18
Saturday, June 19
Friday, July 9
Saturday, July 10
Friday, July 23
Saturday, July 24
Wednesday, August 11
Tuesday, September 14

2020 - Total (1)

Thursday, May 28

2019 - Total (6)

Tuesday, June 11
Wednesday, June 12
Saturday, July 27
Sunday, July 28
Tuesday, August 13
Tuesday, August 27

2018 - Total (20)

Wednesday, June 13
Wednesday, June 18
Friday, July 27
Saturday, July 28
Sunday, July 29
Monday, July 30
Tuesday, July 31
Wednesday, August 1
Thursday, August 2
Friday, August 3
Saturday, August 4
Sunday, August 5
Monday, August 6
Tuesday, August 7
Wednesday, August 8
Thursday, August 9
Friday, August 10
Saturday, August 18
Sunday, August 19
Thursday, September 27

2017 - Total (17)

Wednesday, June 21
Friday, June 23
Saturday, July 1
Thursday, July 6
Friday, July 21
Saturday, July 22
Sunday, July 23
Thursday, July 27
Tuesday, August 1
Wednesday, August 2
Thursday, August 3
Monday, August 28
Tuesday, August 29
Friday, September 1
Saturday, September 2
Sunday, September 3
Monday, September 4

2016 - Total (17)

Thursday, June 2
Friday, June 3
Saturday, June 4
Thursday, June 30
Friday, July 1
Saturday, July 2
Friday, July 15
Tuesday, July 26
Wednesday, July 27
Thursday, July 28
Friday, July 29
Saturday, July 30
Friday, August 12
Saturday, August 13
Thursday, August 18
Sunday, September 18
Tuesday, September 27

2015 - Total (5)

Saturday, June 20
Tuesday, June 30
Wednesday, July 1
Wednesday, July 29
Thursday, July 30

2014 - Total (4)

Monday, June 9
Sunday, July 27
Friday, September 12
Saturday, September 13

2013 - Total (2)

Sunday, August 18
Monday, September 9

2012 - Total (6)

Wednesday, July 11
Thursday, July 12
Wednesday, August 1
Saturday, August 11
Tuesday, August 14
Wednesday, August 15

2011 - Total (5)

Tuesday, July 5
Saturday, September 3
Wednesday, September 7
Wednesday, September 21
Thursday, September 22

2010 - Total (6)

Friday, July 16
Saturday, July 17
Wednesday, August 25
Friday, September 3
Wednesday, September 29
Thursday, September 30

2009 - Total (5)

Sunday, June 28
Monday, June 29
Tuesday, June 30
Thursday, July 16
Friday, July 17

2008 - Total (8)

Monday, July 7
Tuesday, July 8
Wednesday, July 9
Thursday, July 10
Friday, July 11
Thursday, August 14
Friday, August 15
Saturday, August 16

2007 - Total (5)

Thursday, July 5
Friday, July 6
Wednesday, August 1
Thursday, August 30
Monday, September 10

2006 - Total (15)

Friday, June 23
Saturday, June 24
Sunday, June 25
Monday, June 26
Sunday, July 16
Monday, July 17
Tuesday, July 18
Thursday, July 20
Friday, July 21
Saturday, July 22
Sunday, July 23
Monday, July 24
Tuesday, July 25
Saturday, September 2
Wednesday, September 13

2005 - Total (14)

Friday, July 1
Thursday, July 14
Friday, July 15
Saturday, July 16
Sunday, July 17
Monday, July 18
Tuesday, July 19
Monday, July 25
Tuesday, July 26
Wednesday, July 27
Thursday, August 4
Friday, August 5
Saturday, August 6
Sunday, August 7

2004 - Total (6)

Tueday, August 10
Wednesday, August 11
Tuesday, August 31
Tuesday, September 7
Wednesday, September 8
Thursday, September 9

2003 - Total (14)

Tuesday, June 3
Wednesday, June 4
Thursday, June 5
Friday, June 27
Saturday, June 28
Friday, July 11
Friday, July 18
Monday, July 21
Tuesday, July 22
Sunday, July 27
Monday, July 28
Tuesday, July 29
Monday, August 18
Tuesday, September 23

2002 - Total (22)

Monday, July 1
Tuesday, July 2
Wednesday, July 10
Thursday, July 11
Saturday, July 13
Sunday, July 28
Friday, August 9
Saturday, August 10
Sunday, August 11
Monday, August 12
Tuesday, August 13
Wednesday, August 14
Thursday, August 15
Friday, August 16
Monday, September 2
Wednesday, September 11
Thursday, September 12
Friday, September 13
Saturday, September 21
Sunday, September 22
Monday, September 23
Tuesday, September 24

2001 - Total (15)

Tuesday, May 22
Thursday, May 31
Saturday, June 16
Sunday, June 17
Tuesday, June 19
Wednesday, June 20
Thursday, June 21
Sunday, July 1
Monday, July 2
Tuesday, July 3
Wednesday, July 4
Tuesday, August 7
Wednesday, August 8
Sunday, August 26
Monday, August 27

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