Casper Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Casper, Wyoming, based on NOAA data.
What's the hottest day of the year in Casper?
On average, July 25 is the hottest day of the year Casper, Wyoming. From 1991–2020, the average high temperature on July 25 was 89.4 °F and the average low was 54.0 °F.
What's the coldest day of the year in Casper?
On average, December 30 is the coldest day of the year Casper, Wyoming. From 1991–2020, the average high temperature on December 30 was 33.7 °F, and the average low was 14.0 °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 33.9 14.2
January 2 34.0 14.2
January 3 34.0 14.2
January 4 34.2 14.3
January 5 34.4 14.5
January 6 34.6 14.8
January 7 34.8 15.0
January 8 34.8 15.1
January 9 34.9 15.2
January 10 34.9 15.2
January 11 35.0 15.3
January 12 35.2 15.3
January 13 35.2 15.4
January 14 35.3 15.4
January 15 35.4 15.5
January 16 35.6 15.6
January 17 35.6 15.6
January 18 35.7 15.7
January 19 35.8 15.7
January 20 36.0 15.8
January 21 36.0 15.9
January 22 36.1 15.9
January 23 36.0 15.8
January 24 36.1 15.8
January 25 36.1 15.8
January 26 36.2 15.8
January 27 36.4 15.9
January 28 36.5 15.8
January 29 36.5 15.8
January 30 36.7 15.9
January 31 36.8 16.1
February 1 36.9 16.1
February 2 37.0 16.2
February 3 37.0 16.1
February 4 37.0 16.0
February 5 37.1 16.0
February 6 37.2 16.0
February 7 37.4 16.0
February 8 37.6 16.1
February 9 37.6 16.0
February 10 37.6 15.9
February 11 37.6 15.7
February 12 37.7 15.7
February 13 37.8 15.7
February 14 37.9 15.8
February 15 38.0 15.8
February 16 38.2 15.9
February 17 38.6 16.1
February 18 38.8 16.3
February 19 39.1 16.5
February 20 39.3 16.6
February 21 39.6 16.7
February 22 39.8 16.9
February 23 40.2 17.1
February 24 40.6 17.5
February 25 41.0 17.8
February 26 41.5 18.2
February 27 41.9 18.4
February 28 42.3 18.6
March 1 42.8 18.9
March 2 43.4 19.2
March 3 43.7 19.3
March 4 44.1 19.5
March 5 44.4 19.7
March 6 44.9 19.9
March 7 45.3 20.2
March 8 45.8 20.5
March 9 46.2 20.8
March 10 46.6 21.1
March 11 47.1 21.5
March 12 47.7 22.0
March 13 48.2 22.4
March 14 48.6 22.7
March 15 48.9 23.0
March 16 49.4 23.4
March 17 49.8 23.7
March 18 50.1 24.0
March 19 50.3 24.2
March 20 50.6 24.3
March 21 51.0 24.5
March 22 51.4 24.8
March 23 51.7 25.0
March 24 52.0 25.3
March 25 52.3 25.4
March 26 52.5 25.4
March 27 52.6 25.4
March 28 52.8 25.5
March 29 52.9 25.6
March 30 53.1 25.7
March 31 53.2 25.9
April 1 53.3 26.0
April 2 53.5 26.2
April 3 53.8 26.4
April 4 53.9 26.7
April 5 54.1 26.9
April 6 54.2 27.0
April 7 54.4 27.2
April 8 54.9 27.4
April 9 55.2 27.6
April 10 55.3 27.7
April 11 55.5 27.9
April 12 55.8 28.0
April 13 56.1 28.2
April 14 56.3 28.4
April 15 56.5 28.6
April 16 56.6 28.7
April 17 56.8 28.9
April 18 57.2 29.1
April 19 57.4 29.3
April 20 57.7 29.6
April 21 58.1 29.8
April 22 58.5 30.0
April 23 58.7 30.3
April 24 58.9 30.6
April 25 59.3 30.9
April 26 59.5 31.2
April 27 59.6 31.4
April 28 59.8 31.6
April 29 60.2 31.8
April 30 60.7 32.1
May 1 61.2 32.5
May 2 61.6 32.8
May 3 62.0 33.1
May 4 62.6 33.5
May 5 62.9 33.8
May 6 63.3 34.2
May 7 63.7 34.5
May 8 63.9 34.8
May 9 64.2 35.1
May 10 64.5 35.5
May 11 64.9 35.9
May 12 65.3 36.2
May 13 65.7 36.6
May 14 66.2 36.9
May 15 66.7 37.3
May 16 67.2 37.6
May 17 67.6 38.0
May 18 68.0 38.4
May 19 68.4 38.6
May 20 68.7 39.0
May 21 69.0 39.3
May 22 69.4 39.5
May 23 70.0 39.9
May 24 70.4 40.3
May 25 70.9 40.6
May 26 71.5 41.0
May 27 71.9 41.3
May 28 72.2 41.6
May 29 72.6 41.9
May 30 72.9 42.1
May 31 73.2 42.2
June 1 73.4 42.4
June 2 73.7 42.6
June 3 74.0 42.8
June 4 74.3 43.0
June 5 74.6 43.2
June 6 75.2 43.4
June 7 75.8 43.7
June 8 76.3 44.0
June 9 76.8 44.2
June 10 77.3 44.5
June 11 77.8 44.7
June 12 78.2 44.9
June 13 78.6 45.1
June 14 79.2 45.3
June 15 79.7 45.6
June 16 80.0 45.8
June 17 80.4 46.1
June 18 80.8 46.3
June 19 81.3 46.6
June 20 81.6 46.9
June 21 82.0 47.2
June 22 82.4 47.4
June 23 82.9 47.7
June 24 83.3 48.0
June 25 83.7 48.3
June 26 84.1 48.6
June 27 84.5 48.9
June 28 84.8 49.1
June 29 85.3 49.4
June 30 85.7 49.7
July 1 86.0 50.0
July 2 86.5 50.2
July 3 86.9 50.6
July 4 87.3 50.9
July 5 87.6 51.2
July 6 87.8 51.4
July 7 88.1 51.7
July 8 88.3 51.9
July 9 88.5 52.1
July 10 88.7 52.4
July 11 88.8 52.6
July 12 88.9 52.8
July 13 89.0 53.0
July 14 89.0 53.2
July 15 89.1 53.3
July 16 89.2 53.5
July 17 89.3 53.6
July 18 89.3 53.6
July 19 89.4 53.8
July 20 89.4 53.8
July 21 89.4 53.8
July 22 89.4 53.9
July 23 89.4 53.9
July 24 89.4 54.0
July 25 89.4 54.0
July 26 89.4 54.0
July 27 89.3 54.0
July 28 89.3 54.0
July 29 89.2 53.9
July 30 89.1 53.9
July 31 89.0 53.8
August 1 88.8 53.7
August 2 88.6 53.5
August 3 88.4 53.3
August 4 88.2 53.1
August 5 88.1 52.9
August 6 87.9 52.9
August 7 87.8 52.8
August 8 87.8 52.7
August 9 87.7 52.6
August 10 87.7 52.5
August 11 87.6 52.4
August 12 87.5 52.4
August 13 87.4 52.3
August 14 87.3 52.2
August 15 87.1 52.0
August 16 87.0 51.8
August 17 86.7 51.7
August 18 86.6 51.5
August 19 86.5 51.3
August 20 86.4 51.1
August 21 86.2 50.9
August 22 86.0 50.7
August 23 85.6 50.5
August 24 85.3 50.2
August 25 85.0 50.0
August 26 84.6 49.7
August 27 84.3 49.5
August 28 83.9 49.2
August 29 83.5 48.9
August 30 83.1 48.6
August 31 82.9 48.3
September 1 82.5 48.0
September 2 82.3 47.8
September 3 82.0 47.6
September 4 81.6 47.2
September 5 81.1 46.8
September 6 80.5 46.3
September 7 79.9 45.9
September 8 79.4 45.5
September 9 78.8 45.1
September 10 78.2 44.6
September 11 77.7 44.2
September 12 77.3 43.7
September 13 76.8 43.3
September 14 76.3 43.0
September 15 76.0 42.7
September 16 75.6 42.4
September 17 75.1 42.1
September 18 74.5 41.7
September 19 73.9 41.3
September 20 73.2 40.8
September 21 72.5 40.4
September 22 72.0 40.0
September 23 71.6 39.6
September 24 71.1 39.2
September 25 70.5 38.8
September 26 70.0 38.4
September 27 69.6 38.1
September 28 69.1 37.7
September 29 68.6 37.3
September 30 68.1 36.9
October 1 67.4 36.5
October 2 66.9 36.2
October 3 66.4 35.8
October 4 66.0 35.6
October 5 65.7 35.3
October 6 65.4 35.1
October 7 65.1 34.9
October 8 64.6 34.5
October 9 64.2 34.2
October 10 63.7 33.9
October 11 63.0 33.5
October 12 62.5 33.1
October 13 61.9 32.7
October 14 61.3 32.3
October 15 60.6 31.8
October 16 59.8 31.3
October 17 59.2 30.8
October 18 58.7 30.5
October 19 58.2 30.1
October 20 57.8 29.8
October 21 57.4 29.5
October 22 56.9 29.2
October 23 56.5 28.9
October 24 56.2 28.8
October 25 55.8 28.5
October 26 55.4 28.2
October 27 54.9 28.0
October 28 54.3 27.6
October 29 53.8 27.2
October 30 53.3 26.9
October 31 52.8 26.6
November 1 52.3 26.3
November 2 51.9 26.1
November 3 51.4 25.8
November 4 51.0 25.5
November 5 50.5 25.2
November 6 50.1 25.0
November 7 49.7 24.7
November 8 49.2 24.4
November 9 48.7 24.1
November 10 48.3 23.8
November 11 47.8 23.6
November 12 47.3 23.2
November 13 46.9 23.0
November 14 46.6 22.8
November 15 46.3 22.5
November 16 45.9 22.3
November 17 45.6 22.2
November 18 45.3 22.0
November 19 44.8 21.7
November 20 44.3 21.4
November 21 43.7 20.9
November 22 43.2 20.4
November 23 42.6 20.0
November 24 42.1 19.7
November 25 41.6 19.4
November 26 41.4 19.3
November 27 41.1 19.2
November 28 40.8 19.1
November 29 40.5 18.9
November 30 40.2 18.7
December 1 39.7 18.3
December 2 39.2 18.0
December 3 38.8 17.6
December 4 38.3 17.3
December 5 37.9 17.0
December 6 37.6 16.8
December 7 37.2 16.6
December 8 37.0 16.4
December 9 36.6 16.1
December 10 36.3 15.9
December 11 36.1 15.8
December 12 35.8 15.6
December 13 35.6 15.5
December 14 35.5 15.5
December 15 35.3 15.3
December 16 35.0 15.1
December 17 34.8 14.8
December 18 34.6 14.7
December 19 34.5 14.6
December 20 34.5 14.7
December 21 34.4 14.6
December 22 34.2 14.5
December 23 34.2 14.3
December 24 34.2 14.4
December 25 34.2 14.5
December 26 34.2 14.4
December 27 34.1 14.3
December 28 33.9 14.3
December 29 33.8 14.1
December 30 33.7 14.0
December 31 33.8 14.2
Weather Station Details
Years Station Coordinates
1949–2024 Casper-Natrona County International Airport location
1900–1948 Casper 2 E location