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St. Helena Weather in 1939

Historical record of St. Helena, California weather for the year 1939 based on NOAA data.
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1939 St. Helena Weather Extremes
Highest temperature 108 °F September 22
Lowest temperature 25 °F February 1
Highest daily low 64 °F September 22
Lowest daily high 44 °F February 2
Most daily precipitation 1.7 inches January 5
Total annual precipitation 14.2 inches -
What was the hottest temperature in St. Helena in 1939?
The highest temperature recorded in St. Helena, California in 1939 was 108 °F which happened 4 different times.
Highest Temperatures: All-Time By Year
Highest Temperatures in St. Helena in 1939
Rank Temperature Date
1 108 °F Sep 22
1 108 °F Sep 21
1 108 °F Aug 17
1 108 °F Jul 21
5 107 °F Sep 23
6 106 °F Jul 20
6 106 °F Jun 21
8 105 °F Sep 20
8 105 °F Sep 18
10 104 °F Sep 9
What was the coldest temperature in St. Helena in 1939?
The lowest temperature recorded in St. Helena, California in 1939 was 25 °F which happened on Feb 1.
Lowest Temperatures: All-Time By Year
Lowest Temperatures in St. Helena in 1939
Rank Temperature Date
1 25 °F February 1
2 26 °F January 25
3 27 °F February 9
4 28 °F March 5
4 28 °F March 4
4 28 °F February 23
4 28 °F February 21
4 28 °F February 13
4 28 °F February 2
4 28 °F January 24
January 1939 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
January 1
 53 30 0.00
January 2
 60 39 0.00
January 3
 58 39 0.11
January 4
 55 40 0.81
January 5
 55 44 1.65
January 6
 64 33 0.00
January 7
 60 30 0.00
January 8
 61 33 0.00
January 9
 68 41 0.00
January 10
 71 31 0.00
January 11
 65 30 0.00
January 12
 60 30 0.00
January 13
 63 31 0.00
January 14
 65 31 0.00
January 15
 54 31 0.00
January 16
 63 30 0.00
January 17
 63 29 0.00
January 18
 60 31 0.00
January 19
 56 38 0.00
January 20
 57 37 0.00
January 21
 67 40 0.32
January 22
 58 30 0.00
January 23
 64 29 0.00
January 24
 63 28 0.00
January 25
 61 26 0.00
January 26
 54 33 0.00
January 27
 54 34 0.36
January 28
 59 32 0.00
January 29
 48 42 0.61
January 30
 53 34 0.41
January 31
 52 30 0.12
February 1939 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
February 1
 52 25 0.00
February 2
 44 28 0.27
February 3
 53 39 0.34
February 4
 57 31 0.01
February 5
 54 32 0.00
February 6
 52 44 0.45
February 7
 52 34 0.37
February 8
 49 30 0.04
February 9
 45 27 0.11
February 10
 52 39 0.13
February 11
 58 30 0.00
February 12
 55 36 0.01
February 13
 62 28 0.00
February 14
 65 34 0.00
February 15
 64 42 0.00
February 16
 65 35 0.00
February 17
 75 48 0.00
February 18
 70 38 0.00
February 19
 67 40 0.00
February 20
 68 29 0.00
February 21
 68 28 0.00
February 22
 72 30 0.00
February 23
 64 28 0.00
February 24
 72 38 0.00
February 25
 65 30 0.00
February 26
 59 38 0.00
February 27
 63 30 0.00
February 28
 60 38 0.00
March 1939 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
March 1
 68 32 0.00
March 2
 62 34 0.00
March 3
 61 36 0.00
March 4
 60 28 0.00
March 5
 60 28 0.00
March 6
 58 44 0.15
March 7
 51 31 0.39
March 8
 55 43 1.25
March 9
 52 41 0.74
March 10
 60 34 0.00
March 11
 57 34 0.00
March 12
 58 47 0.10
March 13
 60 46 0.24
March 14
 68 33 0.00
March 15
 76 35 0.00
March 16
 81 40 0.00
March 17
 86 42 0.00
March 18
 70 48 0.00
March 19
 75 46 0.00
March 20
 72 48 0.00
March 21
 68 51 0.00
March 22
 63 49 0.00
March 23
 62 49 0.00
March 24
 68 48 0.02
March 25
 61 49 0.00
March 26
 57 47 0.07
March 27
 63 36 0.00
March 28
 66 36 0.00
March 29
 57 42 0.00
March 30
 75 35 0.00
March 31
 82 39 0.00
April 1939 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
April 1
 77 43 0.00
April 2
 71 53 0.17
April 3
 73 43 0.00
April 4
 78 43 0.00
April 5
 90 40 0.00
April 6
 89 56 0.00
April 7
 89 43 0.00
April 8
 85 39 0.00
April 9
 84 41 0.00
April 10
 84 38 0.00
April 11
 80 42 0.00
April 12
 69 42 0.00
April 13
 72 43 0.00
April 14
 79 48 0.00
April 15
 78 46 0.00
April 16
 79 44 0.00
April 17
 87 43 0.00
April 18
 89 45 0.00
April 19
 82 45 0.00
April 20
 75 43 0.00
April 21
 76 46 0.00
April 22
 68 46 0.00
April 23
 72 41 0.00
April 24
 72 39 0.00
April 25
 75 42 0.00
April 26
 75 36 0.00
April 27
 81 37 0.00
April 28
 77 38 0.00
April 29
 75 45 0.00
April 30
 74 32 0.00
May 1939 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
May 1
 76 39 0.00
May 2
 75 40 0.00
May 3
 82 33 0.00
May 4
 80 39 0.00
May 5
 83 48 0.00
May 6
 79 40 0.00
May 7
 87 41 0.00
May 8
 70 48 0.00
May 9
 76 47 0.00
May 10
 76 55 0.00
May 11
 78 52 0.00
May 12
 93 49 0.00
May 13
 93 46 0.00
May 14
 74 50 0.00
May 15
 75 52 0.00
May 16
 75 53 0.00
May 17
 77 40 0.00
May 18
 67 38 0.06
May 19
 74 35 0.00
May 20
 72 40 0.00
May 21
 66 51 0.82
May 22
 66 51 0.16
May 23
 75 43 0.00
May 24
 82 44 0.00
May 25
 87 47 0.00
May 26
 89 47 0.00
May 27
 93 52 0.00
May 28
 100 50 0.00
May 29
 99 57 0.00
May 30
 90 50 0.00
May 31
 89 49 0.00
June 1939 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
June 1
 91 43 0.00
June 2
 93 46 0.00
June 3
 78 42 0.00
June 4
 77 43 0.00
June 5
 77 43 0.00
June 6
 85 38 0.00
June 7
 92 44 0.00
June 8
 95 51 0.00
June 9
 97 49 0.00
June 10
 98 48 0.00
June 11
 93 51 0.00
June 12
 91 44 0.00
June 13
 81 51 0.00
June 14
 74 49 0.00
June 15
 72 55 0.00
June 16
 71 41 0.00
June 17
 82 41 0.00
June 18
 90 49 0.00
June 19
 90 48 0.00
June 20
 95 48 0.00
June 21
 106 48 0.00
June 22
 100 52 0.00
June 23
 97 48 0.00
June 24
 82 47 0.00
June 25
 88 47 0.00
June 26
 89 46 0.00
June 27
 88 48 0.00
June 28
 85 52 0.00
June 29
 94 43 0.00
June 30
 89 45 0.00
July 1939 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
July 1
 82 53 0.00
July 2
 83 46 0.00
July 3
 83 53 0.00
July 4
 80 57 0.00
July 5
 80 55 0.00
July 6
 90 45 0.00
July 7
 95 45 0.00
July 8
 103 49 0.00
July 9
 96 50 0.00
July 10
 92 57 0.00
July 11
 100 50 0.00
July 12
 100 49 0.00
July 13
 90 45 0.00
July 14
 98 43 0.00
July 15
 94 53 0.00
July 16
 97 47 0.00
July 17
 96 50 0.00
July 18
 92 43 0.00
July 19
 96 44 0.00
July 20
 106 44 0.00
July 21
 108 49 0.00
July 22
 102 51 0.00
July 23
 96 50 0.00
July 24
 93 48 0.00
July 25
 90 52 0.00
July 26
 91 54 0.00
July 27
 96 54 0.00
July 28
 87 52 0.00
July 29
 86 52 0.00
July 30
 88 54 0.00
July 31
 94 53 0.00
August 1939 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
August 1
 99 52 0.00
August 2
 93 49 0.00
August 3
 94 51 0.00
August 4
 93 48 0.00
August 5
 88 46 0.00
August 6
 86 49 0.00
August 7
 86 52 0.00
August 8
 86 55 0.00
August 9
 87 53 0.00
August 10
 86 51 0.00
August 11
 88 45 0.00
August 12
 95 44 0.00
August 13
 102 48 0.00
August 14
 98 47 0.00
August 15
 94 45 0.00
August 16
 95 53 0.00
August 17
 108 48 0.00
August 18
 94 50 0.00
August 19
 89 49 0.00
August 20
 88 56 0.00
August 21
 95 53 0.00
August 22
 85 51 0.00
August 23
 88 52 0.00
August 24
 86 49 0.00
August 25
 90 45 0.00
August 26
 88 44 0.00
August 27
 85 45 0.00
August 28
 92 42 0.00
August 29
 93 43 0.00
August 30
 88 43 0.00
August 31
 85 43 0.00
September 1939 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
September 1
 88 43 0.00
September 2
 92 42 0.00
September 3
 85 43 0.00
September 4
 84 54 0.00
September 5
 92 44 0.00
September 6
 97 43 0.00
September 7
 93 43 0.00
September 8
 98 46 0.00
September 9
 104 48 0.00
September 10
 91 50 0.00
September 11
 78 50 0.00
September 12
 75 54 0.00
September 13
 65 40 0.00
September 14
 83 40 0.00
September 15
 92 38 0.00
September 16
 96 42 0.00
September 17
 101 48 0.00
September 18
 105 51 0.00
September 19
 97 60 0.00
September 20
 105 53 0.00
September 21
 108 62 0.00
September 22
 108 64 0.00
September 23
 107 60 0.00
September 24
 93 55 0.00
September 25
 72 55 0.00
September 26
 78 55 0.00
September 27
 82 54 0.00
September 28
 82 43 0.00
September 29
 82 44 0.00
September 30
 82 40 0.00
October 1939 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
October 1
 80 52 0.07
October 2
 78 40 0.01
October 3
 78 35 0.00
October 4
 77 37 0.00
October 5
 63 41 0.02
October 6
 71 48 0.00
October 7
 79 37 0.00
October 8
 86 42 0.00
October 9
 89 45 0.00
October 10
 92 41 0.00
October 11
 96 40 0.00
October 12
 96 43 0.00
October 13
 94 44 0.00
October 14
 86 42 0.00
October 15
 78 38 0.00
October 16
 80 34 0.00
October 17
 72 35 0.00
October 18
 83 43 0.00
October 19
 78 39 0.00
October 20
 92 36 0.00
October 21
 93 45 0.00
October 22
 93 45 0.00
October 23
 78 41 0.00
October 24
 63 47 0.11
October 25
 66 29 0.00
October 26
 70 30 0.00
October 27
 82 42 0.00
October 28
 88 42 0.00
October 29
 91 44 0.00
October 30
 93 43 0.00
October 31
 82 39 0.00
November 1939 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
November 1
 78 35 0.00
November 2
 71 34 0.00
November 3
 77 38 0.00
November 4
 77 34 0.00
November 5
 79 31 0.00
November 6
 82 32 0.00
November 7
 83 33 0.00
November 8
 74 32 0.00
November 9
 74 31 0.00
November 10
 77 32 0.00
November 11
 79 33 0.00
November 12
 78 37 0.00
November 13
 61 30 0.00
November 14
 71 35 0.00
November 15
 77 33 0.00
November 16
 78 31 0.00
November 17
 76 32 0.00
November 18
 78 32 0.00
November 19
 79 32 0.00
November 20
 79 32 0.00
November 21
 76 33 0.00
November 22
 79 37 0.00
November 23
 81 35 0.00
November 24
 75 30 0.00
November 25
 61 43 0.41
November 26
 64 37 0.00
November 27
 68 32 0.00
November 28
 74 44 0.00
November 29
 70 34 0.00
November 30
 70 34 0.00
December 1939 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
December 1
 70 37 0.00
December 2
 75 38 0.00
December 3
 79 32 0.00
December 4
 77 29 0.00
December 5
 57 32 0.00
December 6
 61 36 0.00
December 7
 59 33 0.05
December 8
 60 43 0.22
December 9
 61 56 0.32
December 10
 62 55 1.57
December 11
 61 36 0.00
December 12
 64 32 0.00
December 13
 64 37 0.00
December 14
 59 35 0.00
December 15
 65 41 0.00
December 16
 65 40 0.00
December 17
 65 49 0.05
December 18
 69 36 0.00
December 19
 61 34 0.02
December 20
 64 36 0.00
December 21
 63 37 0.00
December 22
 54 31 0.00
December 23
 49 42 0.18
December 24
 58 32 0.00
December 25
 60 30 0.00
December 26
 60 32 0.00
December 27
 57 37 0.00
December 28
 52 46 0.14
December 29
 61 48 0.26
December 30
 54 49 0.06
December 31
 55 51 0.44
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