Castle Rock Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Castle Rock, Colorado, based on NOAA data.
Also see:
What's the hottest day of the year in Castle Rock?
On average, July 20 is the hottest day of the year Castle Rock, Colorado. From 1991–2020, the average high temperature on July 20 was 85.9 °F and the average low was 55.8 °F.
What's the coldest day of the year in Castle Rock?
On average, December 31 is the coldest day of the year Castle Rock, Colorado. From 1991–2020, the average high temperature on December 31 was 45.1 °F, and the average low was 16.4 °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 45.2 16.5
January 2 45.3 16.4
January 3 45.2 16.5
January 4 45.3 16.5
January 5 45.2 16.6
January 6 45.5 16.7
January 7 45.8 16.9
January 8 46.0 17.0
January 9 46.0 17.1
January 10 46.0 17.1
January 11 46.0 17.2
January 12 46.1 17.2
January 13 46.1 17.3
January 14 46.0 17.2
January 15 45.9 17.2
January 16 45.9 17.2
January 17 46.0 17.3
January 18 46.0 17.3
January 19 46.0 17.3
January 20 46.0 17.3
January 21 46.0 17.3
January 22 45.9 17.3
January 23 45.9 17.4
January 24 45.9 17.3
January 25 45.9 17.3
January 26 45.8 17.3
January 27 45.9 17.4
January 28 46.0 17.5
January 29 46.0 17.5
January 30 46.0 17.6
January 31 46.1 17.7
February 1 46.3 17.8
February 2 46.3 17.9
February 3 46.3 17.9
February 4 46.2 17.9
February 5 46.2 18.1
February 6 46.3 18.2
February 7 46.4 18.4
February 8 46.4 18.5
February 9 46.4 18.6
February 10 46.3 18.6
February 11 46.4 18.5
February 12 46.4 18.5
February 13 46.5 18.7
February 14 46.7 18.8
February 15 46.7 19.0
February 16 46.8 19.1
February 17 47.0 19.3
February 18 47.3 19.6
February 19 47.6 19.8
February 20 47.9 20.1
February 21 48.1 20.4
February 22 48.3 20.6
February 23 48.5 20.8
February 24 48.7 21.0
February 25 49.0 21.2
February 26 49.4 21.5
February 27 49.7 21.9
February 28 49.9 22.1
March 1 50.1 22.3
March 2 50.3 22.6
March 3 50.7 22.9
March 4 51.0 23.2
March 5 51.2 23.3
March 6 51.4 23.5
March 7 51.6 23.7
March 8 51.9 23.9
March 9 52.3 24.2
March 10 52.8 24.5
March 11 53.0 24.7
March 12 53.3 24.9
March 13 53.6 25.3
March 14 53.8 25.5
March 15 54.0 25.7
March 16 54.3 25.9
March 17 54.6 26.2
March 18 54.9 26.5
March 19 55.1 26.6
March 20 55.2 26.8
March 21 55.3 27.0
March 22 55.5 27.2
March 23 55.9 27.4
March 24 56.1 27.7
March 25 56.2 27.9
March 26 56.4 28.1
March 27 56.6 28.2
March 28 56.6 28.4
March 29 56.7 28.5
March 30 56.7 28.6
March 31 56.9 28.8
April 1 57.1 28.9
April 2 57.2 29.0
April 3 57.4 29.3
April 4 57.6 29.6
April 5 57.9 29.8
April 6 58.0 29.9
April 7 58.0 30.0
April 8 58.0 30.3
April 9 58.4 30.7
April 10 58.7 30.9
April 11 58.8 31.1
April 12 58.9 31.3
April 13 59.1 31.5
April 14 59.3 31.7
April 15 59.5 32.0
April 16 59.6 32.2
April 17 59.8 32.3
April 18 60.0 32.5
April 19 60.1 32.8
April 20 60.3 33.1
April 21 60.6 33.3
April 22 60.9 33.6
April 23 61.3 34.0
April 24 61.5 34.3
April 25 61.6 34.5
April 26 62.1 34.8
April 27 62.4 35.1
April 28 62.6 35.3
April 29 62.8 35.6
April 30 63.0 35.8
May 1 63.3 36.1
May 2 63.7 36.4
May 3 64.0 36.7
May 4 64.3 37.1
May 5 64.8 37.5
May 6 65.2 37.8
May 7 65.5 38.1
May 8 65.9 38.4
May 9 66.2 38.7
May 10 66.5 39.0
May 11 66.9 39.3
May 12 67.2 39.6
May 13 67.5 40.0
May 14 67.9 40.3
May 15 68.4 40.7
May 16 68.7 41.0
May 17 69.2 41.4
May 18 69.8 41.8
May 19 70.2 42.0
May 20 70.5 42.3
May 21 70.8 42.6
May 22 71.0 42.8
May 23 71.3 43.2
May 24 71.8 43.5
May 25 72.3 43.8
May 26 72.7 44.2
May 27 73.2 44.5
May 28 73.6 44.8
May 29 73.9 45.0
May 30 74.2 45.3
May 31 74.5 45.5
June 1 74.8 45.7
June 2 75.2 45.9
June 3 75.4 46.1
June 4 75.6 46.3
June 5 75.9 46.6
June 6 76.3 46.9
June 7 76.6 47.2
June 8 77.1 47.5
June 9 77.6 47.8
June 10 78.1 48.1
June 11 78.6 48.4
June 12 79.0 48.7
June 13 79.3 48.9
June 14 79.6 49.2
June 15 80.0 49.5
June 16 80.3 49.7
June 17 80.6 49.9
June 18 80.9 50.1
June 19 81.2 50.4
June 20 81.5 50.6
June 21 81.9 50.8
June 22 82.1 51.0
June 23 82.4 51.3
June 24 82.6 51.5
June 25 82.9 51.8
June 26 83.2 52.1
June 27 83.4 52.3
June 28 83.7 52.6
June 29 84.0 52.8
June 30 84.3 53.1
July 1 84.4 53.3
July 2 84.7 53.5
July 3 84.9 53.7
July 4 85.1 53.9
July 5 85.3 54.1
July 6 85.5 54.2
July 7 85.6 54.4
July 8 85.8 54.6
July 9 85.9 54.8
July 10 85.9 55.0
July 11 86.0 55.1
July 12 86.1 55.2
July 13 86.1 55.3
July 14 86.1 55.4
July 15 86.0 55.5
July 16 86.0 55.5
July 17 86.0 55.6
July 18 86.0 55.7
July 19 86.0 55.8
July 20 85.9 55.8
July 21 85.8 55.8
July 22 85.7 55.9
July 23 85.7 55.9
July 24 85.7 55.9
July 25 85.6 55.9
July 26 85.6 55.9
July 27 85.5 55.9
July 28 85.4 55.9
July 29 85.3 55.9
July 30 85.2 55.8
July 31 85.1 55.7
August 1 85.0 55.6
August 2 84.9 55.5
August 3 84.8 55.4
August 4 84.7 55.4
August 5 84.6 55.2
August 6 84.4 55.1
August 7 84.3 55.1
August 8 84.3 55.0
August 9 84.2 54.8
August 10 84.2 54.7
August 11 84.1 54.7
August 12 84.0 54.6
August 13 84.0 54.5
August 14 84.0 54.4
August 15 83.9 54.2
August 16 83.8 54.1
August 17 83.7 54.0
August 18 83.5 53.8
August 19 83.5 53.7
August 20 83.5 53.6
August 21 83.4 53.4
August 22 83.4 53.3
August 23 83.3 53.1
August 24 83.2 52.9
August 25 82.9 52.6
August 26 82.7 52.4
August 27 82.4 52.2
August 28 82.3 52.0
August 29 82.1 51.7
August 30 81.9 51.5
August 31 81.7 51.2
September 1 81.4 50.9
September 2 81.2 50.7
September 3 81.0 50.5
September 4 80.9 50.2
September 5 80.7 49.9
September 6 80.4 49.6
September 7 80.1 49.3
September 8 79.7 49.0
September 9 79.3 48.6
September 10 79.0 48.2
September 11 78.5 47.8
September 12 78.2 47.4
September 13 77.9 47.0
September 14 77.6 46.6
September 15 77.3 46.2
September 16 77.0 45.9
September 17 76.7 45.6
September 18 76.4 45.2
September 19 76.0 44.8
September 20 75.6 44.5
September 21 75.2 44.0
September 22 74.7 43.7
September 23 74.4 43.3
September 24 74.1 42.9
September 25 73.7 42.5
September 26 73.2 42.0
September 27 72.7 41.6
September 28 72.4 41.3
September 29 72.1 40.9
September 30 71.7 40.4
October 1 71.4 40.0
October 2 70.9 39.5
October 3 70.4 39.1
October 4 70.0 38.6
October 5 69.7 38.2
October 6 69.4 37.8
October 7 69.1 37.5
October 8 68.8 37.2
October 9 68.3 36.8
October 10 68.0 36.5
October 11 67.7 36.2
October 12 67.2 35.9
October 13 66.6 35.4
October 14 66.1 35.0
October 15 65.7 34.7
October 16 65.2 34.2
October 17 64.6 33.8
October 18 64.1 33.4
October 19 63.6 33.0
October 20 63.2 32.6
October 21 62.9 32.3
October 22 62.6 32.0
October 23 62.2 31.7
October 24 61.9 31.5
October 25 61.8 31.3
October 26 61.7 31.1
October 27 61.3 30.8
October 28 60.9 30.5
October 29 60.4 30.2
October 30 59.8 29.9
October 31 59.5 29.7
November 1 59.0 29.3
November 2 58.6 29.0
November 3 58.3 28.8
November 4 57.9 28.5
November 5 57.6 28.2
November 6 57.4 27.9
November 7 57.3 27.7
November 8 56.9 27.5
November 9 56.6 27.2
November 10 56.1 26.8
November 11 55.8 26.5
November 12 55.6 26.2
November 13 55.2 25.8
November 14 54.9 25.6
November 15 54.7 25.3
November 16 54.4 25.0
November 17 54.2 24.7
November 18 54.0 24.5
November 19 53.7 24.2
November 20 53.3 23.9
November 21 52.9 23.5
November 22 52.4 23.1
November 23 51.8 22.7
November 24 51.3 22.3
November 25 50.8 21.9
November 26 50.4 21.6
November 27 50.4 21.4
November 28 50.2 21.2
November 29 50.0 20.9
November 30 49.8 20.8
December 1 49.5 20.6
December 2 49.2 20.2
December 3 48.8 19.9
December 4 48.4 19.6
December 5 48.0 19.3
December 6 47.6 18.9
December 7 47.5 18.7
December 8 47.1 18.5
December 9 46.8 18.3
December 10 46.6 18.0
December 11 46.4 17.8
December 12 46.3 17.6
December 13 46.2 17.4
December 14 46.0 17.3
December 15 45.9 17.3
December 16 45.8 17.3
December 17 45.6 17.2
December 18 45.5 17.0
December 19 45.4 16.8
December 20 45.4 16.8
December 21 45.3 16.8
December 22 45.3 16.7
December 23 45.3 16.6
December 24 45.3 16.6
December 25 45.4 16.6
December 26 45.4 16.7
December 27 45.3 16.7
December 28 45.3 16.6
December 29 45.2 16.5
December 30 45.1 16.4
December 31 45.1 16.4
Weather Station Details
Years Station Coordinates
1893–2024 Castle Rock location
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