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St. Helena Weather in 2020

Historical record of St. Helena, California weather for the year 2020 based on NOAA data.
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Year:
2020 St. Helena Weather Extremes
Highest temperature 113 °F September 6
Lowest temperature 18 °F February 3
Highest daily low 75 °F October 16
Lowest daily high 52 °F January 17
Most daily precipitation 0.7 inches April 5
Total annual precipitation 4.4 inches -
What was the hottest temperature in St. Helena in 2020?
The highest temperature recorded in St. Helena, California in 2020 was 113 °F which happened on September 6.
Highest Temperatures: All-Time By Year
Highest Temperatures in St. Helena in 2020
Rank Temperature Date
1 113 °F Sep 6
2 109 °F Sep 7
3 108 °F Sep 9
4 106 °F Aug 18
4 106 °F Aug 15
6 104 °F Aug 19
6 104 °F Aug 14
6 104 °F Jul 12
9 103 °F Sep 5
10 102 °F Jul 11
What was the coldest temperature in St. Helena in 2020?
The lowest temperature recorded in St. Helena, California in 2020 was 18 °F which happened on Feb 3.
Lowest Temperatures: All-Time By Year
Lowest Temperatures in St. Helena in 2020
Rank Temperature Date
1 18 °F February 3
2 19 °F December 1
3 24 °F December 24
3 24 °F February 8
3 24 °F February 7
3 24 °F February 6
7 25 °F December 25
7 25 °F December 4
7 25 °F February 9
10 26 °F December 26
January 2020 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
January 1
 65 45 0.00
January 2
 65 39 0.00
January 3
 65 37 0.00
January 4
 65 37 0.00
January 5
 65 37 0.00
January 6
 65 36 0.00
January 7
 60 34 0.00
January 8
 56 40 0.00
January 9
 56 40 0.00
January 10
 58 34 0.00
January 11
 58 34 0.00
January 12
 54 37 0.00
January 13
 56 36 0.00
January 14
 53 41 0.00
January 15
 52 31 0.00
January 16
 52 31 0.00
January 17
 52 31 0.00
January 18
 55 32 0.00
January 19
 59 39 0.00
January 20
 58 32 0.00
January 21
 59 39 0.00
January 22
 62 44 0.00
January 23
 62 42 0.00
January 24
 62 42 0.00
January 25
 n/a n/a 0.00
January 26
 63 42 0.00
January 27
 61 46 0.00
January 28
 61 48 0.00
January 29
 64 43 0.00
January 30
 69 43 0.00
January 31
 69 43 0.00
February 2020 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
February 1
 70 41 0.00
February 2
 65 49 0.00
February 3
 65 18 0.00
February 4
 59 40 0.00
February 5
 67 35 0.00
February 6
 68 24 0.00
February 7
 68 24 0.00
February 8
 68 24 0.00
February 9
 68 25 0.00
February 10
 75 31 0.00
February 11
 77 52 0.00
February 12
 76 33 0.00
February 13
 76 33 0.00
February 14
 76 33 0.00
February 15
 77 33 0.00
February 16
 67 47 0.00
February 17
 72 41 0.00
February 18
 72 41 0.00
February 19
 68 37 0.00
February 20
 67 42 0.00
February 21
 74 41 0.00
February 22
 75 42 0.00
February 23
 75 40 0.00
February 24
 80 41 0.00
February 25
 n/a n/a 0.00
February 26
 78 42 0.00
February 27
 n/a n/a 0.00
February 28
 79 42 0.00
February 29
 74 42 0.00
March 2020 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
March 1
 65 44 0.00
March 2
 73 50 0.00
March 3
 83 49 0.00
March 4
 82 42 0.00
March 5
 65 45 0.00
March 6
 57 49 0.00
March 7
 59 44 0.00
March 8
 59 33 0.00
March 9
 67 34 0.00
March 10
 76 39 0.00
March 11
 74 42 0.00
March 12
 78 43 0.00
March 13
 58 42 0.00
March 14
 57 43 0.13
March 15
 55 41 0.48
March 16
 54 40 0.00
March 17
 56 36 0.01
March 18
 54 43 0.05
March 19
 63 37 0.01
March 20
 65 36 0.00
March 21
 69 36 0.00
March 22
 73 39 0.00
March 23
 62 47 0.00
March 24
 59 40 0.35
March 25
 58 34 0.14
March 26
 59 33 0.00
March 27
 60 37 0.00
March 28
 59 43 0.07
March 29
 57 48 0.14
March 30
 64 47 0.00
March 31
 68 42 0.00
April 2020 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
April 1
 67 40 0.00
April 2
 69 39 0.00
April 3
 68 38 0.00
April 4
 67 41 0.61
April 5
 57 47 0.70
April 6
 58 36 0.06
April 7
 65 42 0.00
April 8
 64 44 0.00
April 9
 63 50 0.00
April 10
 70 53 0.00
April 11
 66 49 0.00
April 12
 74 50 0.00
April 13
 79 48 0.00
April 14
 82 45 0.00
April 15
 80 45 0.00
April 16
 80 53 0.00
April 17
 68 51 0.00
April 18
 63 50 0.00
April 19
 65 44 0.00
April 20
 68 51 0.00
April 21
 76 46 0.00
April 22
 83 46 0.00
April 23
 84 47 0.00
April 24
 89 57 0.00
April 25
 90 59 0.00
April 26
 84 51 0.00
April 27
 84 51 0.00
April 28
 87 54 0.00
April 29
 85 56 0.00
April 30
 79 55 0.00
May 2020 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
May 1
 82 45 0.00
May 2
 70 52 0.00
May 3
 77 43 0.00
May 4
 84 40 0.00
May 5
 82 40 0.00
May 6
 92 49 0.00
May 7
 94 47 0.00
May 8
 97 47 0.00
May 9
 85 50 0.00
May 10
 76 49 0.00
May 11
 64 48 0.47
May 12
 67 52 0.05
May 13
 62 48 0.22
May 14
 69 49 0.00
May 15
 80 47 0.09
May 16
 75 53 0.40
May 17
 72 56 0.42
May 18
 69 51 0.00
May 19
 74 47 0.00
May 20
 78 44 0.00
May 21
 82 47 0.00
May 22
 80 49 0.00
May 23
 85 49 0.00
May 24
 92 49 0.00
May 25
 97 54 0.00
May 26
 101 58 0.00
May 27
 100 59 0.00
May 28
 96 57 0.00
May 29
 83 55 0.00
May 30
 75 57 0.00
May 31
 76 55 0.00
June 2020 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
June 1
 88 53 0.00
June 2
 97 54 0.00
June 3
 101 57 0.00
June 4
 100 56 0.00
June 5
 82 54 0.00
June 6
 76 53 0.00
June 7
 75 46 0.00
June 8
 84 47 0.00
June 9
 93 48 0.00
June 10
 97 53 0.00
June 11
 92 54 0.00
June 12
 75 54 0.00
June 13
 76 54 0.00
June 14
 85 51 0.00
June 15
 84 56 0.00
June 16
 84 53 0.00
June 17
 93 51 0.00
June 18
 98 50 0.00
June 19
 92 54 0.00
June 20
 86 54 0.00
June 21
 94 55 0.00
June 22
 93 59 0.00
June 23
 92 56 0.00
June 24
 92 56 0.00
June 25
 91 59 0.00
June 26
 94 57 0.00
June 27
 87 54 0.00
June 28
 83 50 0.00
June 29
 91 51 0.00
June 30
 92 53 0.00
July 2020 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
July 1
 88 52 0.00
July 2
 81 56 0.00
July 3
 82 54 0.00
July 4
 98 55 0.00
July 5
 100 57 0.00
July 6
 94 55 0.00
July 7
 93 53 0.00
July 8
 96 52 0.00
July 9
 95 55 0.00
July 10
 101 56 0.00
July 11
 102 56 0.00
July 12
 104 55 0.00
July 13
 88 59 0.00
July 14
 101 n/a 0.00
July 15
 n/a 54 0.00
July 16
 n/a n/a 0.00
July 17
 n/a n/a 0.00
July 18
 99 55 0.00
July 19
 87 56 0.00
July 20
 84 52 0.00
July 21
 90 55 0.00
July 22
 94 55 0.00
July 23
 83 55 0.00
July 24
 87 54 0.00
July 25
 92 57 0.00
July 26
 92 57 0.00
July 27
 88 56 0.00
July 28
 88 57 0.00
July 29
 90 54 0.00
July 30
 92 54 0.00
July 31
 91 53 0.00
August 2020 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
August 1
 93 55 0.00
August 2
 94 56 0.00
August 3
 97 55 0.00
August 4
 90 56 0.00
August 5
 79 58 0.00
August 6
 85 58 0.00
August 7
 87 58 0.00
August 8
 n/a n/a 0.00
August 9
 96 57 0.00
August 10
 91 58 0.00
August 11
 84 56 0.00
August 12
 91 58 0.00
August 13
 99 55 0.00
August 14
 104 65 0.00
August 15
 106 69 0.00
August 16
 94 73 0.00
August 17
 98 71 0.00
August 18
 106 69 0.00
August 19
 104 68 0.00
August 20
 89 56 0.00
August 21
 96 58 0.00
August 22
 n/a n/a 0.00
August 23
 96 60 0.00
August 24
 90 58 0.00
August 25
 n/a n/a 0.00
August 26
 n/a n/a 0.00
August 27
 87 54 0.00
August 28
 83 55 0.00
August 29
 85 55 0.00
August 30
 88 57 0.00
August 31
 n/a n/a 0.00
September 2020 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
September 1
 n/a n/a 0.00
September 2
 86 54 0.00
September 3
 87 57 0.00
September 4
 n/a n/a 0.00
September 5
 103 53 0.00
September 6
 113 72 0.00
September 7
 109 73 0.00
September 8
 n/a n/a 0.00
September 9
 108 61 0.00
September 10
 n/a n/a 0.00
September 11
 91 44 0.00
September 12
 n/a n/a 0.00
September 13
 85 52 0.00
September 14
 n/a n/a 0.00
September 15
 n/a n/a 0.00
September 16
 n/a n/a 0.00
September 17
 87 60 0.00
September 18
 87 57 0.00
September 19
 88 57 0.00
September 20
 91 54 0.00
September 21
 89 54 0.00
September 22
 n/a n/a 0.00
September 23
 87 52 0.00
September 24
 86 59 0.00
September 25
 n/a n/a 0.00
September 26
 92 n/a 0.00
September 27
 n/a n/a 0.00
September 28
 n/a n/a 0.00
September 29
 n/a n/a 0.00
September 30
 n/a n/a 0.00
October 2020 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
October 1
 96 57 0.00
October 2
 93 60 0.00
October 3
 95 55 0.00
October 4
 93 55 0.00
October 5
 95 52 0.00
October 6
 n/a n/a 0.00
October 7
 n/a n/a 0.00
October 8
 93 36 0.00
October 9
 n/a n/a 0.00
October 10
 68 53 0.00
October 11
 83 54 0.00
October 12
 n/a n/a 0.00
October 13
 n/a n/a 0.00
October 14
 94 32 0.00
October 15
 96 66 0.00
October 16
 96 75 0.00
October 17
 99 n/a 0.00
October 18
 98 n/a 0.00
October 19
 90 54 0.00
October 20
 87 57 0.00
October 21
 90 52 0.00
October 22
 n/a n/a 0.00
October 23
 n/a n/a 0.00
October 24
 81 66 0.00
October 25
 78 65 0.00
October 26
 77 63 0.00
October 27
 87 46 0.00
October 28
 85 44 0.00
October 29
 n/a n/a 0.00
October 30
 n/a n/a 0.00
October 31
 83 42 0.00
November 2020 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
November 1
 n/a n/a n/a
November 2
 n/a n/a n/a
November 3
 n/a n/a n/a
November 4
 n/a n/a n/a
November 5
 n/a n/a n/a
November 6
 n/a n/a n/a
November 7
 n/a n/a n/a
November 8
 n/a n/a n/a
November 9
 n/a n/a n/a
November 10
 n/a n/a n/a
November 11
 n/a n/a n/a
November 12
 n/a n/a n/a
November 13
 n/a n/a n/a
November 14
 n/a n/a n/a
November 15
 n/a n/a n/a
November 16
 n/a n/a n/a
November 17
 n/a n/a n/a
November 18
 n/a n/a n/a
November 19
 n/a n/a n/a
November 20
 n/a n/a n/a
November 21
 n/a n/a n/a
November 22
 n/a n/a n/a
November 23
 n/a n/a n/a
November 24
 n/a n/a n/a
November 25
 n/a n/a n/a
November 26
 n/a n/a n/a
November 27
 n/a n/a n/a
November 28
 n/a n/a n/a
November 29
 n/a n/a n/a
November 30
 n/a n/a n/a
December 2020 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
December 1
 67 19 0.00
December 2
 65 36 0.00
December 3
 67 39 0.00
December 4
 71 25 0.00
December 5
 64 40 0.00
December 6
 68 45 0.00
December 7
 72 42 0.00
December 8
 75 38 0.00
December 9
 n/a n/a 0.00
December 10
 72 36 0.00
December 11
 67 39 0.00
December 12
 58 45 0.00
December 13
 54 38 0.00
December 14
 n/a n/a 0.00
December 15
 n/a n/a 0.00
December 16
 60 28 0.00
December 17
 58 29 0.00
December 18
 n/a n/a 0.00
December 19
 63 37 0.00
December 20
 64 38 0.00
December 21
 61 35 0.00
December 22
 63 38 0.00
December 23
 n/a n/a 0.00
December 24
 63 24 0.00
December 25
 65 25 0.00
December 26
 65 26 0.00
December 27
 58 38 0.00
December 28
 58 43 0.00
December 29
 n/a n/a 0.00
December 30
 n/a n/a 0.00
December 31
 66 58 0.00
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