Lewiston Average Weather by Day

Data and chart of the the average high and low temperature for every day of the year in Lewiston, Idaho, based on NOAA data.
Also see:
What's the hottest day of the year in Lewiston?
On average, August 1 is the hottest day of the year Lewiston, Idaho. From 1991–2020, the average high temperature on August 1 was 92.4 °F and the average low was 61.7 °F.
What's the coldest day of the year in Lewiston?
On average, December 20 is the coldest day of the year Lewiston, Idaho. From 1991–2020, the average high temperature on December 20 was 40.1 °F, and the average low was 28.9 °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 40.3 29.0
January 2 40.3 29.0
January 3 40.3 29.0
January 4 40.4 29.1
January 5 40.4 29.1
January 6 40.5 29.2
January 7 40.6 29.3
January 8 40.7 29.3
January 9 40.9 29.4
January 10 41.0 29.5
January 11 41.2 29.6
January 12 41.3 29.6
January 13 41.4 29.7
January 14 41.6 29.8
January 15 41.7 29.9
January 16 41.9 30.0
January 17 42.0 30.1
January 18 42.2 30.2
January 19 42.3 30.3
January 20 42.5 30.3
January 21 42.7 30.5
January 22 42.8 30.5
January 23 42.9 30.5
January 24 43.0 30.5
January 25 43.1 30.5
January 26 43.3 30.6
January 27 43.5 30.7
January 28 43.8 30.8
January 29 44.0 30.9
January 30 44.2 31.0
January 31 44.5 31.2
February 1 44.7 31.3
February 2 45.0 31.4
February 3 45.2 31.4
February 4 45.3 31.4
February 5 45.5 31.5
February 6 45.8 31.6
February 7 46.0 31.6
February 8 46.1 31.6
February 9 46.2 31.6
February 10 46.3 31.5
February 11 46.4 31.5
February 12 46.5 31.4
February 13 46.6 31.4
February 14 46.7 31.4
February 15 46.9 31.4
February 16 47.1 31.5
February 17 47.3 31.6
February 18 47.5 31.7
February 19 47.7 31.7
February 20 47.9 31.8
February 21 48.1 31.8
February 22 48.4 31.9
February 23 48.7 32.0
February 24 49.0 32.1
February 25 49.3 32.3
February 26 49.6 32.4
February 27 50.0 32.6
February 28 50.2 32.7
March 1 50.5 32.9
March 2 50.7 33.1
March 3 50.9 33.2
March 4 51.1 33.3
March 5 51.5 33.4
March 6 51.8 33.5
March 7 52.1 33.7
March 8 52.3 33.8
March 9 52.6 34.0
March 10 52.8 34.2
March 11 53.1 34.4
March 12 53.5 34.7
March 13 53.8 34.9
March 14 54.1 35.1
March 15 54.5 35.3
March 16 54.9 35.6
March 17 55.2 35.8
March 18 55.5 35.9
March 19 55.7 36.1
March 20 56.0 36.2
March 21 56.1 36.4
March 22 56.3 36.6
March 23 56.6 36.8
March 24 56.8 36.9
March 25 57.0 37.1
March 26 57.2 37.3
March 27 57.4 37.5
March 28 57.5 37.5
March 29 57.7 37.6
March 30 57.8 37.8
March 31 57.9 37.9
April 1 58.1 37.9
April 2 58.3 38.1
April 3 58.5 38.3
April 4 58.7 38.5
April 5 59.0 38.6
April 6 59.3 38.8
April 7 59.7 39.0
April 8 60.0 39.2
April 9 60.4 39.4
April 10 60.7 39.6
April 11 60.9 39.7
April 12 61.3 39.9
April 13 61.6 40.1
April 14 61.8 40.3
April 15 61.9 40.4
April 16 62.2 40.6
April 17 62.5 40.7
April 18 62.8 40.9
April 19 63.1 41.1
April 20 63.5 41.2
April 21 63.8 41.4
April 22 64.0 41.6
April 23 64.3 41.8
April 24 64.6 42.0
April 25 64.9 42.1
April 26 65.2 42.3
April 27 65.6 42.6
April 28 66.0 42.8
April 29 66.5 43.0
April 30 67.0 43.3
May 1 67.4 43.7
May 2 67.7 43.9
May 3 68.1 44.3
May 4 68.3 44.6
May 5 68.6 44.9
May 6 68.7 45.1
May 7 68.9 45.3
May 8 69.1 45.5
May 9 69.4 45.7
May 10 69.8 46.0
May 11 70.1 46.3
May 12 70.3 46.6
May 13 70.6 46.8
May 14 71.0 47.1
May 15 71.3 47.4
May 16 71.7 47.8
May 17 72.0 48.1
May 18 72.4 48.4
May 19 72.6 48.7
May 20 72.9 49.0
May 21 73.3 49.2
May 22 73.5 49.4
May 23 73.6 49.7
May 24 73.8 49.9
May 25 74.0 50.1
May 26 74.1 50.3
May 27 74.2 50.4
May 28 74.3 50.6
May 29 74.4 50.8
May 30 74.5 50.9
May 31 74.6 51.0
June 1 74.8 51.1
June 2 74.9 51.2
June 3 75.1 51.3
June 4 75.3 51.5
June 5 75.6 51.7
June 6 75.9 51.8
June 7 76.2 52.0
June 8 76.4 52.2
June 9 76.7 52.4
June 10 77.0 52.5
June 11 77.3 52.7
June 12 77.6 53.0
June 13 77.9 53.1
June 14 78.2 53.4
June 15 78.4 53.6
June 16 78.7 53.8
June 17 79.1 54.0
June 18 79.4 54.2
June 19 79.7 54.4
June 20 80.1 54.6
June 21 80.6 54.8
June 22 81.0 55.0
June 23 81.4 55.3
June 24 81.9 55.6
June 25 82.4 55.8
June 26 82.9 56.1
June 27 83.3 56.4
June 28 83.9 56.6
June 29 84.3 56.9
June 30 84.8 57.2
July 1 85.2 57.5
July 2 85.7 57.7
July 3 86.1 57.9
July 4 86.5 58.2
July 5 86.9 58.5
July 6 87.3 58.7
July 7 87.6 58.9
July 8 88.0 59.1
July 9 88.3 59.4
July 10 88.6 59.6
July 11 88.9 59.8
July 12 89.3 59.9
July 13 89.6 60.1
July 14 90.0 60.2
July 15 90.2 60.4
July 16 90.5 60.5
July 17 90.8 60.7
July 18 91.0 60.8
July 19 91.3 61.0
July 20 91.4 61.1
July 21 91.6 61.3
July 22 91.8 61.4
July 23 92.0 61.6
July 24 91.9 61.6
July 25 92.0 61.6
July 26 92.1 61.7
July 27 92.1 61.7
July 28 92.2 61.7
July 29 92.2 61.7
July 30 92.3 61.7
July 31 92.4 61.7
August 1 92.4 61.7
August 2 92.4 61.7
August 3 92.3 61.7
August 4 92.3 61.7
August 5 92.2 61.7
August 6 92.2 61.6
August 7 92.0 61.5
August 8 91.8 61.4
August 9 91.6 61.3
August 10 91.3 61.1
August 11 91.0 60.9
August 12 90.7 60.7
August 13 90.5 60.5
August 14 90.3 60.3
August 15 90.1 60.2
August 16 89.7 60.0
August 17 89.5 59.8
August 18 89.2 59.6
August 19 88.9 59.4
August 20 88.6 59.1
August 21 88.3 58.8
August 22 88.0 58.7
August 23 87.7 58.5
August 24 87.4 58.2
August 25 87.0 57.9
August 26 86.6 57.7
August 27 86.3 57.4
August 28 86.0 57.2
August 29 85.7 56.9
August 30 85.3 56.6
August 31 85.0 56.3
September 1 84.7 56.1
September 2 84.2 55.8
September 3 83.7 55.5
September 4 83.3 55.2
September 5 82.8 55.0
September 6 82.4 54.6
September 7 82.0 54.3
September 8 81.7 54.0
September 9 81.4 53.8
September 10 81.0 53.5
September 11 80.6 53.3
September 12 80.2 53.0
September 13 79.9 52.7
September 14 79.6 52.3
September 15 79.3 52.1
September 16 78.9 51.9
September 17 78.6 51.6
September 18 78.1 51.3
September 19 77.5 50.9
September 20 77.0 50.5
September 21 76.5 50.2
September 22 76.0 49.8
September 23 75.6 49.6
September 24 75.2 49.3
September 25 74.6 49.0
September 26 74.0 48.6
September 27 73.3 48.2
September 28 72.7 47.8
September 29 72.2 47.5
September 30 71.7 47.1
October 1 71.1 46.8
October 2 70.7 46.4
October 3 70.2 46.1
October 4 69.8 45.8
October 5 69.4 45.5
October 6 69.0 45.3
October 7 68.5 45.0
October 8 67.9 44.7
October 9 67.3 44.4
October 10 66.7 44.1
October 11 66.1 43.7
October 12 65.4 43.3
October 13 64.7 42.9
October 14 64.0 42.5
October 15 63.3 42.1
October 16 62.6 41.7
October 17 62.0 41.3
October 18 61.5 41.0
October 19 61.0 40.6
October 20 60.4 40.4
October 21 59.9 40.1
October 22 59.4 39.7
October 23 58.9 39.5
October 24 58.4 39.2
October 25 58.0 39.0
October 26 57.5 38.8
October 27 57.0 38.6
October 28 56.6 38.3
October 29 56.1 38.1
October 30 55.6 37.9
October 31 55.1 37.6
November 1 54.6 37.4
November 2 54.2 37.1
November 3 53.7 36.9
November 4 53.2 36.7
November 5 52.8 36.4
November 6 52.3 36.2
November 7 51.8 35.9
November 8 51.3 35.7
November 9 50.9 35.4
November 10 50.4 35.2
November 11 50.0 35.0
November 12 49.7 34.8
November 13 49.3 34.6
November 14 49.0 34.4
November 15 48.6 34.2
November 16 48.3 34.1
November 17 47.9 34.0
November 18 47.6 33.9
November 19 47.2 33.7
November 20 46.9 33.4
November 21 46.4 33.1
November 22 45.9 32.8
November 23 45.5 32.4
November 24 45.1 32.1
November 25 44.7 31.9
November 26 44.4 31.7
November 27 44.1 31.5
November 28 43.9 31.3
November 29 43.6 31.2
November 30 43.3 31.1
December 1 43.0 30.9
December 2 42.7 30.6
December 3 42.5 30.4
December 4 42.3 30.2
December 5 42.0 30.0
December 6 41.8 30.0
December 7 41.7 29.9
December 8 41.5 29.8
December 9 41.4 29.7
December 10 41.2 29.6
December 11 41.0 29.5
December 12 40.9 29.4
December 13 40.7 29.4
December 14 40.7 29.3
December 15 40.6 29.2
December 16 40.4 29.1
December 17 40.3 29.0
December 18 40.2 28.9
December 19 40.1 28.9
December 20 40.1 28.9
December 21 40.2 28.9
December 22 40.2 29.0
December 23 40.3 29.0
December 24 40.4 29.1
December 25 40.4 29.2
December 26 40.5 29.3
December 27 40.4 29.2
December 28 40.4 29.1
December 29 40.4 29.1
December 30 40.3 29.0
December 31 40.3 29.1
Weather Station Details
Years Station Coordinates
1948–2024 Lewiston Nez Perce County Airport location
1894–1947 Lewiston WTP location
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