Santa Rosa Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Santa Rosa, California, based on NOAA data.
Also see:
What's the hottest day of the year in Santa Rosa?
On average, August 23 is the hottest day of the year Santa Rosa, California. From 1991–2020, the average high temperature on August 23 was 84.1 °F and the average low was 52.3 °F.
What's the coldest day of the year in Santa Rosa?
On average, December 28 is the coldest day of the year Santa Rosa, California. From 1991–2020, the average high temperature on December 28 was 56.7 °F, and the average low was 37.0 °F.
Average Temperature by Day
  • Average temperatures from 1991–2020. Daily averages are a mean of the period from 14 days before to 14 days after, inclusive.
Day Average (°F)
High Low
January 1 56.8 37.1
January 2 56.9 37.1
January 3 57.0 37.2
January 4 57.1 37.3
January 5 57.2 37.3
January 6 57.2 37.3
January 7 57.2 37.5
January 8 57.2 37.6
January 9 57.3 37.7
January 10 57.4 37.8
January 11 57.5 37.9
January 12 57.5 38.0
January 13 57.6 38.1
January 14 57.7 38.2
January 15 57.8 38.2
January 16 57.9 38.3
January 17 58.1 38.4
January 18 58.3 38.5
January 19 58.4 38.6
January 20 58.6 38.7
January 21 58.8 38.8
January 22 59.1 38.8
January 23 59.3 38.9
January 24 59.4 39.0
January 25 59.6 39.1
January 26 59.8 39.1
January 27 60.0 39.1
January 28 60.2 39.1
January 29 60.3 39.2
January 30 60.5 39.3
January 31 60.6 39.4
February 1 60.7 39.4
February 2 60.8 39.5
February 3 60.9 39.6
February 4 60.9 39.7
February 5 61.0 39.8
February 6 61.0 39.9
February 7 61.2 40.0
February 8 61.3 40.0
February 9 61.4 39.9
February 10 61.5 40.0
February 11 61.6 40.0
February 12 61.6 40.1
February 13 61.7 40.1
February 14 61.7 40.2
February 15 61.8 40.2
February 16 61.8 40.3
February 17 61.9 40.4
February 18 61.9 40.4
February 19 61.9 40.5
February 20 61.9 40.5
February 21 62.0 40.5
February 22 62.1 40.5
February 23 62.2 40.5
February 24 62.3 40.6
February 25 62.5 40.7
February 26 62.6 40.8
February 27 62.7 40.9
February 28 62.9 41.0
March 1 63.0 41.1
March 2 63.1 41.2
March 3 63.3 41.2
March 4 63.5 41.2
March 5 63.7 41.3
March 6 64.0 41.4
March 7 64.1 41.5
March 8 64.2 41.5
March 9 64.2 41.6
March 10 64.3 41.7
March 11 64.4 41.8
March 12 64.5 41.8
March 13 64.7 41.9
March 14 64.8 42.0
March 15 65.0 42.1
March 16 65.2 42.2
March 17 65.3 42.2
March 18 65.5 42.2
March 19 65.7 42.3
March 20 65.8 42.3
March 21 65.9 42.4
March 22 66.0 42.5
March 23 66.0 42.6
March 24 66.0 42.6
March 25 66.0 42.6
March 26 66.0 42.6
March 27 66.0 42.7
March 28 66.0 42.8
March 29 66.1 42.8
March 30 66.1 42.8
March 31 66.2 42.8
April 1 66.2 42.8
April 2 66.2 42.8
April 3 66.3 42.9
April 4 66.5 42.9
April 5 66.7 42.9
April 6 66.9 43.0
April 7 67.1 43.1
April 8 67.4 43.2
April 9 67.7 43.4
April 10 67.9 43.5
April 11 68.0 43.6
April 12 68.2 43.7
April 13 68.4 43.8
April 14 68.6 43.9
April 15 68.8 44.0
April 16 69.1 44.1
April 17 69.4 44.2
April 18 69.6 44.3
April 19 69.9 44.5
April 20 70.1 44.6
April 21 70.3 44.7
April 22 70.6 44.9
April 23 70.8 45.0
April 24 71.1 45.2
April 25 71.3 45.3
April 26 71.6 45.3
April 27 71.8 45.4
April 28 72.0 45.5
April 29 72.2 45.6
April 30 72.4 45.8
May 1 72.6 45.9
May 2 72.8 46.1
May 3 73.0 46.2
May 4 73.1 46.4
May 5 73.2 46.4
May 6 73.4 46.5
May 7 73.5 46.6
May 8 73.6 46.6
May 9 73.8 46.7
May 10 73.9 46.9
May 11 74.0 47.0
May 12 74.0 47.2
May 13 74.1 47.3
May 14 74.1 47.4
May 15 74.1 47.5
May 16 74.1 47.6
May 17 74.3 47.7
May 18 74.5 47.8
May 19 74.8 47.9
May 20 75.0 48.1
May 21 75.1 48.2
May 22 75.2 48.3
May 23 75.3 48.4
May 24 75.5 48.5
May 25 75.7 48.7
May 26 75.9 48.8
May 27 76.1 49.0
May 28 76.4 49.1
May 29 76.6 49.2
May 30 76.9 49.3
May 31 77.2 49.4
June 1 77.4 49.4
June 2 77.7 49.5
June 3 78.0 49.7
June 4 78.3 49.8
June 5 78.5 49.9
June 6 78.8 50.0
June 7 79.1 50.1
June 8 79.4 50.1
June 9 79.6 50.1
June 10 79.9 50.2
June 11 80.2 50.3
June 12 80.4 50.5
June 13 80.6 50.6
June 14 80.8 50.7
June 15 80.9 50.8
June 16 81.1 50.8
June 17 81.3 50.9
June 18 81.5 51.0
June 19 81.7 51.0
June 20 81.9 51.1
June 21 82.1 51.1
June 22 82.2 51.2
June 23 82.3 51.2
June 24 82.5 51.2
June 25 82.5 51.2
June 26 82.6 51.3
June 27 82.7 51.3
June 28 82.7 51.4
June 29 82.8 51.4
June 30 82.8 51.5
July 1 82.9 51.6
July 2 82.9 51.6
July 3 82.9 51.7
July 4 82.9 51.8
July 5 82.8 51.8
July 6 82.8 51.9
July 7 82.7 52.1
July 8 82.7 52.2
July 9 82.8 52.2
July 10 82.8 52.3
July 11 82.8 52.3
July 12 82.9 52.3
July 13 82.9 52.3
July 14 82.9 52.3
July 15 82.8 52.3
July 16 82.7 52.3
July 17 82.7 52.3
July 18 82.7 52.4
July 19 82.7 52.4
July 20 82.7 52.4
July 21 82.7 52.5
July 22 82.6 52.6
July 23 82.6 52.6
July 24 82.5 52.6
July 25 82.6 52.6
July 26 82.7 52.7
July 27 82.7 52.7
July 28 82.7 52.7
July 29 82.7 52.7
July 30 82.8 52.6
July 31 82.9 52.6
August 1 83.0 52.6
August 2 83.2 52.6
August 3 83.2 52.6
August 4 83.2 52.6
August 5 83.2 52.5
August 6 83.1 52.5
August 7 83.0 52.5
August 8 83.0 52.5
August 9 83.0 52.5
August 10 83.0 52.6
August 11 83.1 52.6
August 12 83.1 52.6
August 13 83.3 52.6
August 14 83.4 52.6
August 15 83.5 52.5
August 16 83.5 52.5
August 17 83.5 52.5
August 18 83.6 52.5
August 19 83.7 52.4
August 20 83.9 52.4
August 21 83.9 52.4
August 22 84.0 52.3
August 23 84.1 52.3
August 24 84.2 52.2
August 25 84.1 52.2
August 26 84.0 52.2
August 27 83.9 52.1
August 28 83.8 52.1
August 29 83.7 52.0
August 30 83.6 52.0
August 31 83.3 52.0
September 1 83.2 52.0
September 2 83.1 51.9
September 3 83.2 51.8
September 4 83.3 51.7
September 5 83.3 51.6
September 6 83.3 51.5
September 7 83.4 51.3
September 8 83.3 51.2
September 9 83.3 51.1
September 10 83.3 51.0
September 11 83.3 50.9
September 12 83.3 50.8
September 13 83.3 50.7
September 14 83.2 50.6
September 15 83.0 50.5
September 16 82.9 50.4
September 17 82.6 50.3
September 18 82.5 50.2
September 19 82.3 50.1
September 20 82.0 50.0
September 21 81.7 49.9
September 22 81.6 49.7
September 23 81.5 49.6
September 24 81.6 49.5
September 25 81.5 49.4
September 26 81.3 49.3
September 27 81.2 49.1
September 28 81.2 48.9
September 29 81.2 48.7
September 30 81.3 48.6
October 1 81.2 48.5
October 2 81.1 48.4
October 3 80.9 48.3
October 4 80.6 48.1
October 5 80.4 48.0
October 6 80.2 47.9
October 7 80.1 47.7
October 8 79.8 47.6
October 9 79.5 47.5
October 10 79.2 47.4
October 11 78.8 47.3
October 12 78.5 47.1
October 13 78.2 47.0
October 14 78.0 46.9
October 15 77.7 46.8
October 16 77.4 46.6
October 17 77.0 46.4
October 18 76.8 46.3
October 19 76.7 46.0
October 20 76.4 45.9
October 21 76.1 45.7
October 22 75.7 45.6
October 23 75.2 45.5
October 24 74.9 45.4
October 25 74.5 45.1
October 26 74.1 45.0
October 27 73.6 44.9
October 28 73.1 44.7
October 29 72.6 44.5
October 30 72.3 44.3
October 31 71.9 44.1
November 1 71.6 44.0
November 2 71.1 43.9
November 3 70.8 43.7
November 4 70.3 43.5
November 5 69.8 43.4
November 6 69.4 43.2
November 7 69.0 43.1
November 8 68.6 42.9
November 9 68.2 42.6
November 10 67.7 42.4
November 11 67.3 42.1
November 12 66.9 41.9
November 13 66.5 41.7
November 14 66.2 41.5
November 15 65.9 41.3
November 16 65.5 41.1
November 17 65.1 41.0
November 18 64.7 40.9
November 19 64.3 40.8
November 20 63.9 40.7
November 21 63.6 40.5
November 22 63.2 40.3
November 23 62.9 40.2
November 24 62.7 40.1
November 25 62.5 40.0
November 26 62.2 39.9
November 27 61.9 39.8
November 28 61.5 39.8
November 29 61.1 39.6
November 30 60.8 39.5
December 1 60.6 39.3
December 2 60.3 39.2
December 3 60.0 39.1
December 4 59.8 39.0
December 5 59.6 38.8
December 6 59.3 38.6
December 7 59.1 38.5
December 8 58.9 38.5
December 9 58.7 38.4
December 10 58.5 38.2
December 11 58.3 38.1
December 12 58.2 38.0
December 13 58.0 37.9
December 14 57.8 37.8
December 15 57.7 37.8
December 16 57.6 37.7
December 17 57.5 37.6
December 18 57.4 37.5
December 19 57.3 37.4
December 20 57.2 37.4
December 21 57.2 37.3
December 22 57.1 37.2
December 23 57.0 37.1
December 24 56.9 37.1
December 25 56.8 37.1
December 26 56.8 37.1
December 27 56.8 37.0
December 28 56.7 37.0
December 29 56.7 37.0
December 30 56.8 37.0
December 31 56.8 37.0
Weather Station Details
Years Station Coordinates
1998–2024 Santa Rosa Sonoma County Airport location
1902–1998 Santa Rosa location
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