St. Helena Weather in 2021

Historical record of St. Helena, California weather for the year 2021 based on NOAA data.
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Year:
2021 St. Helena Weather Extremes
Highest temperature 107 °F June 17
Lowest temperature 29 °F February 28
Highest daily low 65 °F June 17
Lowest daily high 43 °F December 29
Most daily precipitation 9.9 inches October 24
Highest Temperatures in St. Helena in 2021
Rank Temperature Date
1 107 °F Jun 17
2 106 °F Jun 19
2 106 °F Jun 18
4 105 °F Jul 10
5 104 °F Sep 11
5 104 °F Sep 10
5 104 °F Sep 9
8 102 °F Aug 29
9 101 °F Sep 7
9 101 °F Aug 28
9 101 °F Jul 9
Lowest Temperatures in St. Helena in 2021
Rank Temperature Date
1 29 °F February 28
1 29 °F February 27
3 30 °F January 25
4 31 °F December 18
4 31 °F December 17
6 32 °F December 19
6 32 °F December 11
6 32 °F January 21
9 33 °F January 9
10 34 °F December 14
10 34 °F December 10
10 34 °F November 7
10 34 °F January 1
January 2021 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
January 1
60 34 0.03
January 2
66 44 0.15
January 3
57 48 0.02
January 4
57 49 0.94
January 5
60 38 0.01
January 6
55 36 0.17
January 7
60 40 0.00
January 8
63 38 0.17
January 9
64 33 0.01
January 10
61 36 0.00
January 11
62 61 0.00
January 12
61 44 0.00
January 13
70 47 0.00
January 14
75 43 0.01
January 15
70 41 0.01
January 16
73 43 0.00
January 17
75 44 0.00
January 18
73 35 0.00
January 19
70 36 0.00
January 20
72 37 0.00
January 21
65 32 0.00
January 22
53 42 0.33
January 23
62 36 0.00
January 24
54 48 0.08
January 25
53 30 0.00
January 26
51 38 1.38
January 27
52 42 0.49
January 28
51 41 0.51
January 29
56 41 0.03
January 30
57 42 0.00
January 31
62 42 0.04
February 2021 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
February 1
63 42 n/a
February 2
n/a n/a n/a
February 3
n/a n/a n/a
February 4
n/a n/a n/a
February 5
n/a n/a n/a
February 6
n/a n/a n/a
February 7
68 40 n/a
February 8
67 39 n/a
February 9
67 40 n/a
February 10
n/a n/a n/a
February 11
n/a n/a n/a
February 12
n/a n/a n/a
February 13
66 41 n/a
February 14
66 42 n/a
February 15
62 48 n/a
February 16
n/a n/a n/a
February 17
n/a n/a n/a
February 18
n/a n/a n/a
February 19
63 37 n/a
February 20
n/a n/a n/a
February 21
70 39 n/a
February 22
75 38 n/a
February 23
76 48 n/a
February 24
n/a n/a n/a
February 25
n/a n/a n/a
February 26
n/a n/a n/a
February 27
70 29 n/a
February 28
70 29 n/a
March 2021 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
March 1
66 36 0.00
March 2
69 36 0.00
March 3
68 38 0.00
March 4
64 39 0.00
March 5
65 36 0.07
March 6
65 n/a 0.04
March 7
65 40 0.00
March 8
65 36 0.02
March 9
52 38 0.59
March 10
49 41 0.51
March 11
59 36 0.01
March 12
70 37 0.01
March 13
67 35 0.00
March 14
58 40 0.35
March 15
53 39 0.02
March 16
61 38 0.00
March 17
54 52 0.00
March 18
53 45 0.82
March 19
67 49 0.04
March 20
61 38 0.00
March 21
68 38 0.00
March 22
69 40 0.00
March 23
66 45 0.00
March 24
74 48 0.00
March 25
71 45 0.00
March 26
73 45 0.00
March 27
76 39 0.00
March 28
79 40 0.00
March 29
79 41 0.00
March 30
78 48 0.00
March 31
81 56 0.00
April 2021 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
April 1
83 44 0.00
April 2
n/a n/a n/a
April 3
77 43 0.00
April 4
67 47 0.00
April 5
71 43 0.00
April 6
n/a n/a 0.00
April 7
73 46 0.00
April 8
75 38 0.00
April 9
75 42 0.00
April 10
76 40 0.00
April 11
79 42 0.00
April 12
80 42 0.00
April 13
74 44 0.00
April 14
71 42 0.00
April 15
71 43 0.00
April 16
76 39 0.00
April 17
83 42 0.00
April 18
83 47 0.00
April 19
86 48 0.00
April 20
n/a n/a 0.00
April 21
73 44 0.00
April 22
70 49 0.00
April 23
73 48 0.00
April 24
68 47 0.00
April 25
61 49 0.00
April 26
63 40 0.09
April 27
79 43 0.00
April 28
82 45 0.00
April 29
86 48 0.00
April 30
86 47 0.00
May 2021 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
May 1
82 47 0.00
May 2
84 52 0.00
May 3
n/a n/a 0.00
May 4
n/a n/a 0.00
May 5
90 54 0.00
May 6
90 48 0.00
May 7
81 50 0.00
May 8
89 55 0.00
May 9
n/a n/a 0.00
May 10
n/a n/a 0.00
May 11
92 51 0.00
May 12
90 51 0.00
May 13
85 48 0.00
May 14
77 48 0.00
May 15
72 50 0.00
May 16
72 51 0.00
May 17
n/a n/a 0.00
May 18
n/a n/a 0.00
May 19
82 46 0.00
May 20
76 43 0.00
May 21
75 45 0.00
May 22
75 45 0.00
May 23
76 48 0.00
May 24
n/a n/a 0.00
May 25
n/a n/a 0.00
May 26
85 48 0.00
May 27
86 46 0.00
May 28
86 54 0.00
May 29
81 51 0.00
May 30
91 51 0.00
May 31
99 54 0.00
June 2021 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
June 1
99 55 0.00
June 2
84 51 0.00
June 3
n/a n/a 0.00
June 4
85 53 0.00
June 5
84 52 0.00
June 6
82 53 0.00
June 7
83 49 0.00
June 8
74 n/a 0.00
June 9
n/a n/a 0.00
June 10
n/a n/a 0.00
June 11
76 46 0.00
June 12
86 58 0.00
June 13
84 61 0.00
June 14
81 64 0.00
June 15
91 54 0.00
June 16
98 58 0.00
June 17
107 65 0.00
June 18
106 54 0.00
June 19
106 58 0.00
June 20
90 55 0.00
June 21
90 55 0.00
June 22
82 n/a 0.00
June 23
82 54 0.00
June 24
85 55 0.00
June 25
88 55 0.00
June 26
n/a n/a 0.00
June 27
87 55 0.00
June 28
93 56 0.00
June 29
93 55 0.00
June 30
87 60 0.00
July 2021 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
July 1
81 57 0.00
July 2
85 56 0.00
July 3
85 56 0.00
July 4
87 55 0.00
July 5
84 55 0.00
July 6
87 54 0.00
July 7
87 50 0.00
July 8
99 55 0.00
July 9
101 53 0.00
July 10
105 54 0.00
July 11
97 53 0.00
July 12
82 52 0.00
July 13
77 54 0.00
July 14
86 53 0.00
July 15
81 53 0.00
July 16
84 53 0.00
July 17
91 56 0.00
July 18
93 56 0.00
July 19
90 58 0.00
July 20
86 56 0.00
July 21
86 55 0.00
July 22
87 53 0.00
July 23
92 55 0.00
July 24
90 54 0.00
July 25
95 55 0.00
July 26
93 54 0.00
July 27
95 57 0.00
July 28
97 52 0.00
July 29
98 53 0.00
July 30
93 52 0.00
July 31
89 50 0.00
August 2021 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
August 1
89 55 0.00
August 2
92 53 0.00
August 3
93 50 0.00
August 4
89 52 0.00
August 5
93 55 0.00
August 6
91 54 0.00
August 7
91 59 0.00
August 8
85 59 0.00
August 9
96 60 0.00
August 10
97 54 0.00
August 11
95 55 0.00
August 12
91 57 0.00
August 13
90 55 0.00
August 14
91 52 0.00
August 15
88 56 0.00
August 16
90 60 0.00
August 17
85 58 0.00
August 18
83 52 0.00
August 19
85 53 0.00
August 20
85 53 0.00
August 21
83 55 0.00
August 22
84 54 0.00
August 23
82 55 0.00
August 24
82 53 0.00
August 25
83 49 0.00
August 26
94 49 0.00
August 27
99 55 0.00
August 28
101 58 0.00
August 29
102 56 0.00
August 30
92 53 0.00
August 31
84 57 0.00
September 2021 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
September 1
88 n/a 0.00
September 2
87 n/a 0.00
September 3
87 n/a 0.00
September 4
91 n/a 0.00
September 5
97 53 0.00
September 6
98 54 0.00
September 7
101 52 0.00
September 8
n/a n/a 0.00
September 9
104 n/a 0.00
September 10
104 n/a 0.00
September 11
104 n/a 0.00
September 12
94 56 0.00
September 13
93 54 0.00
September 14
n/a n/a 0.00
September 15
n/a n/a 0.00
September 16
78 54 0.00
September 17
78 54 0.00
September 18
69 56 0.00
September 19
96 n/a 0.00
September 20
93 n/a 0.00
September 21
96 59 0.00
September 22
96 57 0.00
September 23
96 52 0.00
September 24
92 n/a 0.00
September 25
96 52 0.00
September 26
96 52 0.00
September 27
77 49 0.00
September 28
80 51 0.00
September 29
84 50 0.00
September 30
91 48 0.00
October 2021 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
October 1
95 54 0.00
October 2
97 53 0.00
October 3
95 50 0.00
October 4
94 48 0.00
October 5
91 49 0.00
October 6
68 58 0.00
October 7
73 47 0.00
October 8
73 47 0.00
October 9
75 45 0.00
October 10
81 45 0.00
October 11
77 50 0.00
October 12
72 53 0.00
October 13
74 45 0.00
October 14
79 44 0.00
October 15
84 46 0.00
October 16
85 42 0.00
October 17
85 43 0.00
October 18
66 44 0.10
October 19
66 39 0.00
October 20
62 50 0.00
October 21
65 50 0.00
October 22
n/a n/a 0.00
October 23
65 50 0.00
October 24
65 50 9.93
October 25
63 51 0.92
October 26
62 49 0.00
October 27
73 48 0.00
October 28
81 48 0.00
October 29
81 48 0.00
October 30
63 59 0.00
October 31
82 49 0.00
November 2021 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
November 1
60 54 0.37
November 2
68 50 n/a
November 3
72 47 n/a
November 4
72 47 n/a
November 5
n/a n/a n/a
November 6
72 46 n/a
November 7
78 34 n/a
November 8
62 n/a n/a
November 9
72 39 n/a
November 10
66 46 n/a
November 11
73 46 n/a
November 12
72 46 n/a
November 13
74 46 n/a
November 14
74 46 n/a
November 15
72 47 n/a
November 16
67 49 n/a
November 17
66 40 n/a
November 18
63 43 n/a
November 19
57 51 n/a
November 20
70 44 n/a
November 21
72 49 n/a
November 22
72 39 n/a
November 23
67 38 n/a
November 24
71 36 n/a
November 25
67 41 n/a
November 26
n/a n/a n/a
November 27
n/a n/a n/a
November 28
72 45 n/a
November 29
74 37 n/a
November 30
74 37 n/a
December 2021 St. Helena Weather
Day High (°F) Low (°F) Precip. (inches)
December 1
70 42 n/a
December 2
69 41 n/a
December 3
50 44 n/a
December 4
55 47 n/a
December 5
53 41 n/a
December 6
55 39 n/a
December 7
63 46 n/a
December 8
60 47 n/a
December 9
58 36 n/a
December 10
58 34 n/a
December 11
56 32 n/a
December 12
50 45 n/a
December 13
53 41 n/a
December 14
50 34 n/a
December 15
50 36 n/a
December 16
54 35 n/a
December 17
55 31 n/a
December 18
56 31 n/a
December 19
46 32 n/a
December 20
50 42 n/a
December 21
54 40 n/a
December 22
49 43 n/a
December 23
54 49 n/a
December 24
54 40 n/a
December 25
n/a n/a n/a
December 26
52 35 n/a
December 27
47 40 n/a
December 28
43 36 n/a
December 29
43 40 n/a
December 30
54 38 n/a
December 31
n/a n/a n/a
Weather Station Details
Years Station Coordinates
1907–2023 Saint Helena location