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Half Moon Bay Weather in 2018

Historical record of Half Moon Bay, California weather for the year 2018 based on NOAA data.
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2018 Half Moon Bay Weather Extremes
Highest temperature 80 °F November 1
Lowest temperature 28 °F February 24
Highest daily low 59 °F October 4
Lowest daily high 52 °F February 20
Most daily precipitation 2.0 inches January 9
Total annual precipitation 18.8 inches -
January 2018 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
January 1
65 41 0.00
January 2
65 42 0.00
January 3
64 55 0.01
January 4
64 54 0.19
January 5
61 55 0.34
January 6
58 44 0.22
January 7
56 40 0.01
January 8
60 50 1.64
January 9
60 55 2.00
January 10
57 51 0.05
January 11
58 49 0.02
January 12
63 44 0.01
January 13
66 44 0.00
January 14
65 53 0.00
January 15
62 45 0.00
January 16
60 55 0.03
January 17
59 49 0.00
January 18
59 48 0.13
January 19
56 42 0.30
January 20
55 39 0.00
January 21
57 34 0.00
January 22
58 49 0.25
January 23
58 41 0.00
January 24
56 37 0.14
January 25
56 40 0.52
January 26
56 36 0.04
January 27
63 38 0.01
January 28
68 44 0.00
January 29
68 53 0.00
January 30
70 47 0.00
January 31
70 39 0.00
February 2018 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
February 1
74 38 0.00
February 2
75 42 0.00
February 3
77 41 0.00
February 4
78 52 0.00
February 5
76 45 0.00
February 6
73 46 0.00
February 7
73 41 0.00
February 8
63 38 0.00
February 9
66 40 0.00
February 10
64 40 0.00
February 11
60 34 0.00
February 12
56 48 0.00
February 13
64 35 0.00
February 14
62 36 0.00
February 15
62 38 0.00
February 16
58 31 0.00
February 17
58 34 0.00
February 18
58 34 0.01
February 19
55 41 0.00
February 20
52 28 0.00
February 21
54 35 0.00
February 22
54 37 0.01
February 23
54 30 0.00
February 24
54 28 0.00
February 25
55 32 0.00
February 26
54 43 0.33
February 27
54 37 0.03
February 28
55 32 0.00
March 2018 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
March 1
56 50 1.00
March 2
56 40 0.18
March 3
53 37 0.20
March 4
54 33 0.01
March 5
63 37 0.00
March 6
64 49 0.00
March 7
62 45 0.00
March 8
62 52 0.20
March 9
58 45 0.01
March 10
55 49 0.00
March 11
55 43 0.01
March 12
62 47 0.00
March 13
74 53 0.52
March 14
58 45 0.18
March 15
57 38 0.02
March 16
58 48 0.38
March 17
55 41 0.05
March 18
55 34 0.00
March 19
65 38 0.00
March 20
61 50 0.14
March 21
61 53 0.41
March 22
61 51 0.73
March 23
57 37 0.00
March 24
58 45 0.15
March 25
56 37 0.08
March 26
58 36 0.00
March 27
62 38 0.00
March 28
64 40 0.00
March 29
74 42 0.00
March 30
72 43 0.00
March 31
66 42 0.00
April 2018 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
April 1
60 45 0.00
April 2
60 51 0.00
April 3
60 40 0.00
April 4
59 45 0.00
April 5
59 46 0.00
April 6
61 54 0.81
April 7
61 56 1.43
April 8
62 45 0.01
April 9
70 44 0.00
April 10
65 45 0.00
April 11
65 42 0.00
April 12
60 42 0.18
April 13
61 39 0.00
April 14
61 41 0.00
April 15
62 42 0.00
April 16
60 41 0.25
April 17
59 38 0.00
April 18
58 39 0.00
April 19
58 38 0.00
April 20
58 45 0.00
April 21
60 42 0.00
April 22
61 44 0.00
April 23
60 41 0.00
April 24
59 45 0.00
April 25
58 51 0.00
April 26
59 51 0.00
April 27
63 51 0.00
April 28
62 52 0.00
April 29
63 52 0.01
April 30
60 52 0.00
May 2018 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
May 1
58 41 0.00
May 2
60 49 0.00
May 3
59 51 0.00
May 4
59 47 0.00
May 5
59 46 0.00
May 6
60 48 0.00
May 7
61 44 0.00
May 8
61 52 0.00
May 9
61 54 0.06
May 10
61 52 0.00
May 11
66 47 0.00
May 12
67 45 0.00
May 13
64 53 0.00
May 14
64 47 0.00
May 15
64 53 0.00
May 16
63 49 0.00
May 17
62 52 0.00
May 18
60 53 0.01
May 19
58 53 0.00
May 20
60 52 0.00
May 21
59 51 0.00
May 22
59 52 0.04
May 23
60 52 0.05
May 24
60 52 0.00
May 25
62 53 0.04
May 26
60 53 0.02
May 27
61 50 0.01
May 28
64 46 0.00
May 29
65 47 0.00
May 30
63 52 0.00
May 31
60 52 0.00
June 2018 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
June 1
63 43 0.00
June 2
64 42 0.00
June 3
62 45 0.00
June 4
63 45 0.00
June 5
62 51 0.00
June 6
62 52 0.00
June 7
63 52 0.00
June 8
62 47 0.00
June 9
62 54 0.09
June 10
61 43 0.00
June 11
62 53 0.00
June 12
62 45 0.00
June 13
63 45 0.00
June 14
63 53 0.00
June 15
62 50 0.00
June 16
63 53 0.00
June 17
65 53 0.00
June 18
64 56 0.00
June 19
62 53 0.00
June 20
62 53 0.00
June 21
62 52 0.00
June 22
64 51 0.00
June 23
64 46 0.00
June 24
68 52 0.00
June 25
67 55 0.01
June 26
64 45 0.00
June 27
63 54 0.00
June 28
63 49 0.00
June 29
63 51 0.00
June 30
65 46 0.00
July 2018 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
July 1
65 55 0.00
July 2
63 56 0.00
July 3
67 54 0.01
July 4
67 55 0.00
July 5
65 53 0.00
July 6
68 54 0.00
July 7
69 49 0.00
July 8
65 54 0.00
July 9
65 48 0.00
July 10
67 48 0.00
July 11
65 56 0.00
July 12
65 55 0.00
July 13
66 58 0.00
July 14
66 56 0.00
July 15
65 55 0.03
July 16
65 56 0.00
July 17
64 54 0.00
July 18
64 53 0.00
July 19
65 54 0.02
July 20
67 54 0.00
July 21
67 59 0.00
July 22
67 58 0.00
July 23
68 57 0.00
July 24
65 56 0.00
July 25
65 56 0.00
July 26
64 56 0.00
July 27
63 45 0.00
July 28
63 53 0.00
July 29
63 53 0.00
July 30
61 53 0.00
July 31
61 53 0.00
August 2018 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
August 1
61 52 0.01
August 2
61 53 0.01
August 3
62 54 0.00
August 4
62 45 0.00
August 5
63 53 0.00
August 6
62 52 0.00
August 7
61 53 0.00
August 8
62 54 0.00
August 9
59 52 0.00
August 10
61 53 0.00
August 11
64 49 0.00
August 12
65 55 0.00
August 13
64 55 0.00
August 14
64 55 0.04
August 15
66 59 0.01
August 16
67 58 0.00
August 17
66 56 0.00
August 18
62 50 0.00
August 19
63 51 0.00
August 20
63 55 0.00
August 21
64 55 0.00
August 22
67 58 0.00
August 23
66 58 0.00
August 24
68 58 0.00
August 25
68 55 0.00
August 26
65 54 0.00
August 27
66 55 0.00
August 28
67 57 0.03
August 29
69 55 0.00
August 30
69 59 0.00
August 31
65 56 0.00
September 2018 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
September 1
64 56 0.00
September 2
63 55 0.00
September 3
65 55 0.00
September 4
65 56 0.00
September 5
64 56 0.00
September 6
62 55 0.00
September 7
62 53 0.00
September 8
63 46 0.00
September 9
64 51 0.00
September 10
65 53 0.00
September 11
65 44 0.01
September 12
64 50 0.00
September 13
64 55 0.00
September 14
64 55 0.00
September 15
62 55 0.00
September 16
63 54 0.00
September 17
64 47 0.01
September 18
62 55 0.00
September 19
62 51 0.00
September 20
63 42 0.00
September 21
63 43 0.00
September 22
62 50 0.00
September 23
61 50 0.00
September 24
60 40 0.00
September 25
60 47 0.00
September 26
59 51 0.01
September 27
60 51 0.00
September 28
65 56 0.00
September 29
68 52 0.00
September 30
66 52 0.00
October 2018 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
October 1
67 52 0.00
October 2
77 59 0.10
October 3
71 59 0.00
October 4
71 59 0.00
October 5
65 50 0.00
October 6
67 55 0.00
October 7
73 52 0.00
October 8
67 46 0.00
October 9
65 50 0.00
October 10
65 50 0.01
October 11
65 49 0.00
October 12
80 45 0.00
October 13
73 42 0.00
October 14
61 53 0.00
October 15
76 46 0.00
October 16
65 38 0.00
October 17
60 51 0.00
October 18
61 50 0.00
October 19
62 42 0.00
October 20
62 46 0.00
October 21
61 48 0.00
October 22
61 52 0.00
October 23
63 47 0.00
October 24
64 43 0.00
October 25
63 51 0.00
October 26
63 45 0.00
October 27
67 51 0.00
October 28
67 51 0.00
October 29
64 45 0.00
October 30
64 38 0.00
October 31
64 40 0.00
November 2018 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
November 1
80 45 0.00
November 2
66 44 0.00
November 3
64 41 0.00
November 4
63 43 0.00
November 5
63 40 0.00
November 6
61 36 0.00
November 7
61 35 0.00
November 8
63 38 0.00
November 9
72 38 0.00
November 10
60 32 0.00
November 11
70 37 0.00
November 12
72 48 0.00
November 13
65 39 0.00
November 14
61 42 0.00
November 15
61 34 0.00
November 16
62 40 0.00
November 17
61 35 0.00
November 18
61 35 0.00
November 19
66 37 0.00
November 20
63 38 0.00
November 21
62 47 1.22
November 22
62 49 0.18
November 23
61 51 0.66
November 24
61 57 0.17
November 25
62 44 0.01
November 26
63 43 0.00
November 27
62 47 0.01
November 28
63 58 0.10
November 29
62 54 0.82
November 30
60 54 0.03
December 2018 Half Moon Bay Weather
Day High (°F) Low (°F) Precip. (inches)
December 1
58 42 0.07
December 2
59 37 0.02
December 3
57 46 0.00
December 4
57 50 0.00
December 5
56 48 0.40
December 6
62 51 0.05
December 7
62 41 0.00
December 8
63 41 0.00
December 9
62 41 0.00
December 10
58 45 0.00
December 11
59 37 0.00
December 12
63 49 0.00
December 13
64 37 0.00
December 14
64 43 0.06
December 15
62 49 0.05
December 16
62 51 0.14
December 17
60 45 0.40
December 18
60 41 0.01
December 19
61 45 0.00
December 20
60 46 0.00
December 21
60 51 0.10
December 22
61 46 0.00
December 23
62 43 0.00
December 24
60 48 0.30
December 25
59 41 0.09
December 26
58 37 0.00
December 27
60 40 0.00
December 28
60 47 0.00
December 29
58 34 0.00
December 30
60 41 0.00
December 31
57 38 0.00
Weather Station Details
Years Station Coordinates
1939–2022 Half Moon Bay location