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Interior Weather in 2021

Historical record of Interior, South Dakota weather for the year 2021 based on NOAA data.
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Year:
2021 Interior Weather Extremes
Highest temperature 108 °F July 27
Lowest temperature -18 °F February 15
Highest daily low 76 °F July 28
Lowest daily high -3 °F February 13
Most daily precipitation 1.4 inches October 13
Most daily snow 10.0 inches March 15
Total annual precipitation 14.7 inches -
Total annual snow 45.0 inches -
What was the hottest temperature in Interior in 2021?
The highest temperature recorded in Interior, South Dakota in 2021 was 108 °F which happened on July 27.
Highest Temperatures: All-Time By Year
Highest Temperatures in Interior in 2021
Rank Temperature Date
1 108 °F Jul 27
2 107 °F Jul 28
3 106 °F Aug 17
4 105 °F Aug 18
5 104 °F Aug 23
5 104 °F Jul 26
5 104 °F Jul 25
8 103 °F Jul 29
9 102 °F Jul 22
9 102 °F Jul 4
9 102 °F Jul 3
9 102 °F Jun 23
What was the coldest temperature in Interior in 2021?
The lowest temperature recorded in Interior, South Dakota in 2021 was -18 °F which happened 2 different times.
Lowest Temperatures: All-Time By Year
Lowest Temperatures in Interior in 2021
Rank Temperature Date
1 -18 °F February 15
1 -18 °F February 14
3 -16 °F February 13
4 -11 °F February 12
5 -8 °F February 16
6 -7 °F February 11
7 -5 °F February 19
7 -5 °F February 8
9 -4 °F February 10
10 -3 °F December 31
January 2021 Interior Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
January 1
 45 20 0.00 0.0
January 2
 49 21 0.00 0.0
January 3
 49 20 0.00 0.0
January 4
 47 24 0.00 0.0
January 5
 44 31 0.00 0.0
January 6
 43 26 0.00 0.0
January 7
 39 22 0.00 0.0
January 8
 36 15 0.00 0.0
January 9
 32 24 0.00 0.0
January 10
 44 24 0.00 0.0
January 11
 50 22 0.00 0.0
January 12
 54 26 0.00 0.0
January 13
 53 36 0.00 0.0
January 14
 52 33 0.00 0.0
January 15
 37 28 0.00 0.0
January 16
 45 20 0.00 0.0
January 17
 44 20 0.00 0.0
January 18
 41 29 0.00 0.0
January 19
 38 21 0.04 0.0
January 20
 47 23 0.00 0.0
January 21
 45 17 0.00 0.0
January 22
 35 18 0.02 0.5
January 23
 33 24 0.00 0.0
January 24
 32 21 0.00 0.0
January 25
 31 14 0.00 0.0
January 26
 22 12 0.00 0.0
January 27
 34 10 0.00 0.0
January 28
 47 16 0.00 0.0
January 29
 45 16 0.00 0.0
January 30
 30 23 0.00 0.0
January 31
 48 27 0.00 0.0
February 2021 Interior Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
February 1
 48 11 0.00 0.0
February 2
 48 9 0.00 0.0
February 3
 63 15 0.00 0.0
February 4
 37 19 0.00 0.0
February 5
 35 13 0.01 0.0
February 6
 25 2 0.08 1.0
February 7
 3 0 0.06 2.0
February 8
 7 -5 0.00 0.0
February 9
 6 -2 0.00 0.0
February 10
 5 -4 0.06 2.0
February 11
 4 -7 0.00 0.0
February 12
 5 -11 0.12 0.0
February 13
 -3 -16 0.03 0.5
February 14
 -2 -18 0.00 0.0
February 15
 5 -18 0.00 0.0
February 16
 9 -8 0.00 0.0
February 17
 19 3 0.00 0.0
February 18
 23 3 0.00 0.0
February 19
 25 -5 0.00 0.0
February 20
 36 8 0.00 0.0
February 21
 40 17 0.00 0.0
February 22
 57 23 0.00 0.0
February 23
 55 31 0.00 0.0
February 24
 45 26 0.00 0.0
February 25
 45 16 0.00 0.0
February 26
 48 30 0.00 0.0
February 27
 41 18 0.01 0.0
February 28
 32 11 0.77 8.0
March 2021 Interior Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
March 1
 40 18 0.00 0.0
March 2
 55 32 0.00 0.0
March 3
 58 27 0.00 0.0
March 4
 60 26 0.00 0.0
March 5
 64 26 0.00 0.0
March 6
 73 26 0.00 0.0
March 7
 67 39 0.00 0.0
March 8
 73 36 0.00 0.0
March 9
 72 40 0.00 0.0
March 10
 53 25 0.63 6.0
March 11
 37 18 0.03 0.0
March 12
 44 25 0.00 0.0
March 13
 43 29 0.00 0.0
March 14
 42 31 0.35 2.0
March 15
 36 29 0.54 10.0
March 16
 35 22 0.00 0.0
March 17
 37 27 0.00 0.0
March 18
 37 29 0.00 0.0
March 19
 52 30 0.00 0.0
March 20
 70 40 0.00 0.0
March 21
 68 34 0.00 0.0
March 22
 59 27 0.00 0.0
March 23
 57 27 0.00 0.0
March 24
 53 32 0.00 0.0
March 25
 61 32 0.00 0.0
March 26
 61 34 0.00 0.0
March 27
 50 31 0.00 0.0
March 28
 71 26 0.00 0.0
March 29
 75 41 0.00 0.0
March 30
 46 25 0.00 0.0
March 31
 48 19 0.00 0.0
April 2021 Interior Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
April 1
 69 24 0.00 0.0
April 2
 77 41 0.00 0.0
April 3
 77 41 0.00 0.0
April 4
 82 45 0.00 0.0
April 5
 82 42 0.00 0.0
April 6
 76 34 0.20 0.0
April 7
 57 29 0.12 0.0
April 8
 67 29 0.00 0.0
April 9
 67 37 0.04 0.0
April 10
 67 29 0.00 0.0
April 11
 64 31 0.00 0.0
April 12
 47 32 0.00 0.0
April 13
 43 29 0.00 0.0
April 14
 41 25 0.00 0.0
April 15
 39 27 0.02 0.0
April 16
 41 25 0.18 0.0
April 17
 51 26 0.00 0.0
April 18
 67 32 0.00 0.0
April 19
 63 25 0.15 3.0
April 20
 39 26 0.09 0.0
April 21
 46 23 0.00 0.0
April 22
 51 29 0.00 0.0
April 23
 53 32 0.00 0.0
April 24
 54 18 0.00 0.0
April 25
 68 43 0.00 0.0
April 26
 66 30 0.00 0.0
April 27
 64 45 0.29 0.0
April 28
 67 34 0.00 0.0
April 29
 75 40 0.00 0.0
April 30
 86 40 0.00 0.0
May 2021 Interior Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
May 1
 86 39 0.00 0.0
May 2
 86 40 0.02 0.0
May 3
 58 42 0.00 0.0
May 4
 65 32 0.00 0.0
May 5
 65 37 0.07 0.0
May 6
 68 38 0.00 0.0
May 7
 68 30 0.00 0.0
May 8
 66 40 0.03 0.0
May 9
 49 30 0.02 0.0
May 10
 56 30 0.00 0.0
May 11
 61 34 0.00 0.0
May 12
 67 35 0.00 0.0
May 13
 67 35 0.00 0.0
May 14
 72 38 0.00 0.0
May 15
 72 38 0.00 0.0
May 16
 67 52 0.33 0.0
May 17
 70 49 0.00 0.0
May 18
 78 53 0.00 0.0
May 19
 84 54 0.00 0.0
May 20
 84 55 0.00 0.0
May 21
 82 50 0.11 0.0
May 22
 55 42 0.61 0.0
May 23
 82 36 0.05 0.0
May 24
 78 43 0.59 0.0
May 25
 77 51 0.00 0.0
May 26
 75 45 0.00 0.0
May 27
 63 40 0.17 0.0
May 28
 n/a n/a 0.01 0.0
May 29
 68 38 0.00 0.0
May 30
 75 47 0.00 0.0
May 31
 77 44 0.00 0.0
June 2021 Interior Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
June 1
 78 55 0.00 0.0
June 2
 84 56 0.07 0.0
June 3
 91 56 0.00 0.0
June 4
 99 65 0.00 0.0
June 5
 99 65 0.00 0.0
June 6
 100 69 0.00 0.0
June 7
 98 63 0.00 0.0
June 8
 99 70 0.00 0.0
June 9
 96 60 0.68 0.0
June 10
 96 72 0.00 0.0
June 11
 97 61 0.07 0.0
June 12
 91 58 0.00 0.0
June 13
 95 67 0.00 0.0
June 14
 94 64 0.00 0.0
June 15
 99 69 0.00 0.0
June 16
 99 70 0.00 0.0
June 17
 100 70 0.00 0.0
June 18
 94 66 0.00 0.0
June 19
 94 59 0.00 0.0
June 20
 89 59 0.03 0.0
June 21
 79 51 0.00 0.0
June 22
 91 52 0.00 0.0
June 23
 102 61 0.00 0.0
June 24
 101 66 0.02 0.0
June 25
 101 60 0.20 0.0
June 26
 79 57 0.05 0.0
June 27
 85 59 0.00 0.0
June 28
 82 61 0.00 0.0
June 29
 88 52 0.00 0.0
June 30
 91 57 0.00 0.0
July 2021 Interior Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
July 1
 93 64 0.00 0.0
July 2
 94 64 0.00 0.0
July 3
 102 69 0.00 0.0
July 4
 102 68 0.00 0.0
July 5
 98 67 0.00 0.0
July 6
 91 66 0.34 0.0
July 7
 90 62 0.00 0.0
July 8
 92 62 0.17 0.0
July 9
 90 62 0.07 0.0
July 10
 83 63 0.08 0.0
July 11
 89 55 0.00 0.0
July 12
 95 63 0.00 0.0
July 13
 95 63 0.05 0.0
July 14
 94 60 0.47 0.0
July 15
 89 63 0.01 0.0
July 16
 95 66 0.00 0.0
July 17
 95 60 0.16 0.0
July 18
 97 65 0.00 0.0
July 19
 97 68 0.00 0.0
July 20
 96 67 0.00 0.0
July 21
 100 73 0.00 0.0
July 22
 102 75 0.00 0.0
July 23
 101 69 0.13 0.0
July 24
 97 67 0.00 0.0
July 25
 104 70 0.00 0.0
July 26
 104 70 0.00 0.0
July 27
 108 73 0.00 0.0
July 28
 107 76 0.00 0.0
July 29
 103 66 0.00 0.0
July 30
 87 59 0.07 0.0
July 31
 90 56 0.00 0.0
August 2021 Interior Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
August 1
 91 56 0.00 0.0
August 2
 96 61 0.00 0.0
August 3
 95 63 0.00 0.0
August 4
 95 67 0.02 0.0
August 5
 98 68 0.00 0.0
August 6
 99 66 0.00 0.0
August 7
 91 59 0.10 0.0
August 8
 100 62 0.00 0.0
August 9
 100 64 0.00 0.0
August 10
 100 57 0.00 0.0
August 11
 100 57 0.00 0.0
August 12
 99 65 0.00 0.0
August 13
 88 55 0.00 0.0
August 14
 100 64 0.00 0.0
August 15
 100 67 0.00 0.0
August 16
 100 62 0.00 0.0
August 17
 106 66 0.00 0.0
August 18
 105 70 0.00 0.0
August 19
 97 60 0.21 0.0
August 20
 81 59 0.20 0.0
August 21
 77 50 0.00 0.0
August 22
 87 64 0.00 0.0
August 23
 104 50 0.00 0.0
August 24
 101 74 0.00 0.0
August 25
 90 56 0.00 0.0
August 26
 91 66 0.00 0.0
August 27
 91 60 0.37 0.0
August 28
 91 59 0.00 0.0
August 29
 84 51 0.00 0.0
August 30
 89 52 0.00 0.0
August 31
 90 59 0.00 0.0
September 2021 Interior Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
September 1
 89 48 0.00 0.0
September 2
 81 64 0.99 0.0
September 3
 79 59 0.12 0.0
September 4
 79 51 0.00 0.0
September 5
 88 53 0.00 0.0
September 6
 100 63 0.00 0.0
September 7
 100 58 0.00 0.0
September 8
 82 48 0.00 0.0
September 9
 90 57 0.00 0.0
September 10
 96 57 0.00 0.0
September 11
 96 56 0.00 0.0
September 12
 81 55 0.00 0.0
September 13
 80 64 0.08 0.0
September 14
 79 56 0.06 0.0
September 15
 90 57 0.00 0.0
September 16
 91 57 0.00 0.0
September 17
 n/a n/a 0.00 0.0
September 18
 100 50 0.00 0.0
September 19
 100 49 0.00 0.0
September 20
 93 50 0.23 0.0
September 21
 72 47 0.06 0.0
September 22
 82 46 0.00 0.0
September 23
 86 46 0.00 0.0
September 24
 84 53 0.04 0.0
September 25
 87 40 0.00 0.0
September 26
 94 50 0.00 0.0
September 27
 97 52 0.00 0.0
September 28
 98 64 0.00 0.0
September 29
 96 51 0.19 0.0
September 30
 67 50 0.05 0.0
October 2021 Interior Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
October 1
 74 44 0.00 0.0
October 2
 78 44 0.00 0.0
October 3
 83 44 0.00 0.0
October 4
 90 49 0.00 0.0
October 5
 91 49 0.00 0.0
October 6
 89 52 0.00 0.0
October 7
 85 55 0.00 0.0
October 8
 82 52 0.00 0.0
October 9
 82 52 0.00 0.0
October 10
 70 49 0.19 0.0
October 11
 68 41 0.00 0.0
October 12
 68 40 0.22 0.0
October 13
 51 38 1.43 0.0
October 14
 54 31 0.00 0.0
October 15
 55 35 0.00 0.0
October 16
 68 35 0.00 0.0
October 17
 78 34 0.00 0.0
October 18
 83 45 0.00 0.0
October 19
 81 43 0.02 0.0
October 20
 43 33 0.73 1.0
October 21
 n/a n/a 0.00 0.0
October 22
 62 26 0.00 0.0
October 23
 62 38 0.00 0.0
October 24
 62 48 0.00 0.0
October 25
 61 40 0.00 0.0
October 26
 60 45 0.00 0.0
October 27
 60 43 0.18 0.0
October 28
 59 43 0.00 0.0
October 29
 73 31 0.00 0.0
October 30
 72 47 0.00 0.0
October 31
 47 35 0.00 0.0
November 2021 Interior Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
November 1
 46 33 0.00 0.0
November 2
 50 21 0.00 0.0
November 3
 57 24 0.00 0.0
November 4
 66 34 0.00 0.0
November 5
 69 42 0.00 0.0
November 6
 76 33 0.00 0.0
November 7
 73 38 0.00 0.0
November 8
 61 39 0.05 0.0
November 9
 60 38 0.00 0.0
November 10
 54 46 0.00 0.0
November 11
 54 46 0.00 0.0
November 12
 48 26 0.00 0.0
November 13
 64 28 0.00 0.0
November 14
 52 36 0.00 0.0
November 15
 71 42 0.00 0.0
November 16
 69 48 0.00 0.0
November 17
 48 33 0.00 0.0
November 18
 n/a n/a n/a n/a
November 19
 51 18 0.00 0.0
November 20
 50 31 0.00 0.0
November 21
 44 29 0.00 0.0
November 22
 58 32 0.00 0.0
November 23
 67 29 0.00 0.0
November 24
 62 27 0.00 0.0
November 25
 n/a n/a n/a n/a
November 26
 67 14 0.00 0.0
November 27
 58 44 0.00 0.0
November 28
 58 22 0.00 0.0
November 29
 63 41 0.00 0.0
November 30
 57 29 0.00 0.0
December 2021 Interior Weather
Day High (°F) Low (°F) Precip. (inches) Snow (inches)
December 1
 64 28 0.00 0.0
December 2
 71 42 0.00 0.0
December 3
 61 38 0.00 0.0
December 4
 40 29 0.00 0.0
December 5
 38 6 0.00 0.0
December 6
 38 6 0.00 0.0
December 7
 33 14 0.00 0.0
December 8
 59 20 0.00 0.0
December 9
 53 32 0.00 0.0
December 10
 37 26 0.47 6.0
December 11
 30 14 0.00 0.0
December 12
 43 26 0.00 0.0
December 13
 47 28 0.00 0.0
December 14
 50 26 0.00 0.0
December 15
 46 21 0.00 0.0
December 16
 36 19 0.00 0.0
December 17
 34 14 0.09 2.0
December 18
 23 0 0.00 0.0
December 19
 45 11 0.00 0.0
December 20
 n/a n/a 0.00 0.0
December 21
 n/a n/a 0.00 0.0
December 22
 n/a n/a 0.00 0.0
December 23
 53 16 0.00 0.0
December 24
 51 35 0.00 0.0
December 25
 n/a n/a 0.00 0.0
December 26
 35 15 0.00 0.0
December 27
 n/a n/a 0.00 0.0
December 28
 n/a n/a n/a n/a
December 29
 n/a n/a n/a n/a
December 30
 30 -2 0.00 0.0
December 31
 24 -3 0.05 1.0
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