National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Weather observations for the past three days for
Half Moon Bay Airport
Imperial (Metric)
Date Time (pdt) Wind (mph) Vis. (mi.) Weather Sky Cond. Temperature (ºF) Relative Humidity Wind Chill (°F) Heat Index (°F) Pressure Precipitation (in)
Air Dwpt 6 hour altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
Max. Min.
22 12:35 NW 8 7.00 Fair CLR 59 53.6 82% 30.17 0.0
22 12:15 W 10 6.00 Fair with Haze CLR 59 55.4 88% 30.17 0.0
22 11:55 NW 9 7.00 Fair CLR 59 55.4 88% 30.17 0.0
22 11:35 NW 9 7.00 Fair CLR 59 55.4 88% 30.17 0.0
22 11:15 W 9 7.00 Fair CLR 60.8 55.4 83% 30.17 0.0
22 10:55 Vrbl 7 7.00 Fair CLR 59 55.4 88% 30.17 0.0
22 10:35 W 7 7.00 Fair CLR 59 55.4 88% 30.17 0.0
22 10:15 NW 6 7.00 A Few Clouds FEW013 59 53.6 82% 30.16 0.0
22 09:55 Vrbl 3 7.00 Partly Cloudy SCT013 57.2 53.6 88% 30.17 0.0
22 09:35 NW 8 6.00 Fog/Mist BKN013 57.2 55.4 94% 30.17 0.0
22 09:15 N 5 6.00 Fog/Mist BKN014 57.2 55.4 94% 30.17 0.0
22 08:55 Calm 4.00 Fog/Mist SCT013 57.2 55.4 94% 30.17 0.0
22 08:35 Calm 6.00 Fog/Mist BKN013 55.4 55.4 100% 30.16 0.0
22 08:15 Calm 6.00 Fog/Mist OVC012 55.4 53.6 94% 30.15 0.0
22 07:55 Calm 6.00 Fog/Mist OVC012 55.4 55.4 100% 30.15 0.0
22 07:35 Calm 6.00 Fog/Mist OVC011 55.4 55.4 100% 30.15 0.0
22 07:15 Calm 7.00 Overcast OVC010 55.4 55.4 100% 30.15 0.0
22 06:55 Calm 7.00 Overcast OVC010 53.6 53.6 100% 30.15 0.0
22 06:35 NE 3 6.00 Fog/Mist OVC008 53.6 53.6 100% 30.15 0.0
22 06:15 NE 3 6.00 Fog/Mist OVC007 53.6 53.6 100% 30.14 0.0
22 05:55 Calm 6.00 Fog/Mist OVC007 53.6 53.6 100% 30.13 0.0
22 05:35 Calm 6.00 Fog/Mist OVC007 55.4 55.4 100% 30.13 0.0
22 05:15 Calm 6.00 Fog/Mist OVC008 55.4 55.4 100% 30.12 0.0
22 04:55 Calm 6.00 Fog/Mist OVC008 55.4 55.4 100% 30.12 0.0
22 04:35 Calm 6.00 Fog/Mist OVC008 55.4 55.4 100% 30.12 0.0
22 04:15 E 3 7.00 Overcast OVC008 53.6 53.6 100% 30.12 0.0
22 03:55 Vrbl 3 6.00 Fog/Mist OVC008 55.4 55.4 100% 30.13 0.0
22 03:35 Calm 7.00 Overcast OVC008 53.6 53.6 100% 30.13 0.0
22 03:15 Calm 7.00 Overcast OVC008 53.6 53.6 100% 30.13 0.0
22 02:55 Calm 8.00 Overcast OVC009 51.8 51.8 100% 30.12 0.0
22 02:35 Calm 8.00 Overcast OVC009 51.8 51.8 100% 30.11 0.0
22 02:15 Calm 8.00 Overcast OVC010 50 50 100% 30.12 0.0
22 01:35 NE 5 8.00 Overcast OVC012 48.2 48.2 100% 47 30.12 0.0
22 01:15 NE 3 9.00 Mostly Cloudy BKN012 50 50 100% 30.12 0.0
22 00:55 Calm 8.00 Fair CLR 48.2 48.2 100% 30.12 0.0
22 00:35 E 5 9.00 Fair CLR 50 50 100% 49 30.12 0.0
22 00:15 Calm 7.00 Fair CLR 50 50 100% 30.12 0.0
21 23:55 Calm 7.00 A Few Clouds FEW011 50 50 100% 30.12 0.0
21 23:35 Calm 8.00 Fair CLR 50 50 100% 30.12 0.0
21 22:55 Calm 6.00 Fog/Mist CLR 55.4 53.6 94% 30.12 0.0
21 22:35 NW 5 6.00 Fog/Mist CLR 55.4 53.6 94% 30.12 0.0
21 22:15 N 6 7.00 Fair CLR 55.4 53.6 94% 30.11 0.0
21 21:55 NW 5 7.00 Fair CLR 55.4 55.4 100% 30.11 0.0
21 21:35 NW 5 7.00 Fair CLR 55.4 55.4 100% 30.1 0.0
21 21:15 NW 8 7.00 Fair CLR 55.4 55.4 100% 30.11 0.0
21 20:55 NW 7 8.00 Fair CLR 55.4 55.4 100% 30.1 0.0
21 20:35 N 6 8.00 Fair CLR 55.4 55.4 100% 30.1 0.0
21 20:15 N 7 9.00 Fair CLR 55.4 55.4 100% 30.1 0.0
21 19:55 N 9 9.00 Partly Cloudy SCT005 55.4 55.4 100% 30.1 0.0
21 19:15 NW 9 5.00 Fog/Mist OVC003 57.2 57.2 100% 30.09 0.0
21 18:55 NW 10 9.00 Overcast OVC004 57.2 57.2 100% 30.09 0.0
21 18:35 N 10 8.00 Overcast OVC004 57.2 57.2 100% 30.1 0.0
21 18:15 N 10 G 17 6.00 Fog/Mist OVC003 57.2 57.2 100% 30.09 0.0
21 17:55 N 10 G 17 6.00 Fog/Mist OVC004 57.2 57.2 100% 30.09 0.0
21 17:35 NW 14 6.00 Fog/Mist BKN005 59 57.2 94% 30.09 0.0
21 17:15 NW 14 8.00 A Few Clouds FEW007 59 57.2 94% 30.1 0.0
21 16:55 NW 12 9.00 Fair CLR 60.8 57.2 88% 30.1 0.0
21 16:35 N 13 10.00 Fair CLR 62.6 59 88% 30.1 0.0
21 16:15 NW 12 9.00 Fair CLR 62.6 59 88% 30.1 0.0
21 15:55 NW 13 10.00 Fair CLR 62.6 59 88% 30.1 0.0
21 15:35 NW 14 9.00 Partly Cloudy SCT006 62.6 57.2 83% 30.11 0.0
21 15:15 NW 17 G 23 9.00 Partly Cloudy SCT007 60.8 57.2 88% 30.11 0.0
21 14:55 NW 14 10.00 Fair CLR 62.6 57.2 83% 30.11 0.0
21 14:35 N 14 G 21 9.00 Fair CLR 62.6 55.4 77% 30.12 0.0
21 14:15 NW 13 9.00 Fair CLR 62.6 55.4 77% 30.12 0.0
21 13:55 NW 13 9.00 Fair CLR 62.6 55.4 77% 30.13 0.0
21 13:35 NW 14 9.00 Fair CLR 62.6 55.4 77% 30.13 0.0
21 13:15 NW 14 9.00 Fair CLR 62.6 55.4 77% 30.13 0.0
21 12:55 NW 13 9.00 Fair CLR 62.6 55.4 77% 30.14 0.0
21 12:35 NW 10 9.00 Fair CLR 62.6 55.4 77% 30.14 0.0
21 12:15 NW 8 9.00 Fair CLR 62.6 55.4 77% 30.14 0.0
21 11:55 NW 8 8.00 Fair CLR 60.8 55.4 83% 30.15 0.0
21 11:35 W 5 G 12 9.00 Fair CLR 60.8 55.4 83% 30.15 0.0
21 11:15 W 9 8.00 NULL NULL 60.8 55.4 83% 30.15 0.0
21 10:55 S 6 0.00 NULL NULL 60.8 55.4 83% 30.15 0.0
21 10:35 Calm 7.00 Fair CLR 59 55.4 88% 30.15 0.0
21 10:15 W 6 9.00 NULL NULL 59 55.4 88% 30.16 0.0
21 09:35 N 5 8.00 Overcast OVC012 57.2 53.6 88% 30.16 0.0
21 09:15 Calm 8.00 Overcast OVC011 55.4 53.6 94% 30.15 0.0
21 08:55 NE 6 9.00 Overcast OVC011 55.4 51.8 88% 30.15 0.0
21 08:35 NE 5 9.00 Overcast OVC011 53.6 51.8 94% 30.14 0.0
21 08:15 E 8 8.00 Overcast OVC010 51.8 48.2 88% 30.13 0.0
21 07:55 E 7 8.00 Overcast OVC008 50 46.4 88% 48 30.13 0.0
21 07:35 Calm 8.00 Overcast OVC008 50 48.2 94% 30.13 0.0
21 07:15 NE 5 9.00 Mostly Cloudy BKN008 46.4 46.4 100% 45 30.13 0.0
21 06:55 Calm 9.00 A Few Clouds FEW007 46.4 46.4 100% 30.13 0.0
21 06:35 Calm 10.00 Fair CLR 46.4 46.4 100% 30.12 0.0
21 06:15 NE 3 9.00 Mostly Cloudy BKN007 50 48.2 94% 30.11 0.0
21 05:55 E 6 9.00 Overcast OVC007 50 46.4 88% 48 30.11 0.0
21 05:35 E 7 10.00 Overcast OVC007 50 46.4 88% 48 30.11 0.0
21 05:15 Calm 10.00 Overcast OVC007 50 46.4 88% 30.11 0.0
21 04:55 Calm 10.00 Overcast OVC007 50 46.4 88% 30.11 0.0
21 04:35 Calm 10.00 Overcast OVC007 50 44.6 82% 30.1 0.0
21 04:15 Calm 10.00 Overcast OVC007 50 44.6 82% 30.11 0.0
21 03:55 E 6 10.00 Overcast OVC006 50 42.8 76% 48 30.1 0.0
21 03:35 E 5 9.00 Overcast OVC003 50 42.8 76% 49 30.1 0.0
21 03:15 Calm 9.00 Overcast BKN003 OVC008 48.2 42.8 82% 30.1 0.0
21 02:55 Calm 10.00 Mostly Cloudy BKN008 46.4 39.2 76% 30.1 0.0
21 02:35 NW 3 10.00 Fair CLR 44.6 39.2 81% 30.1 0.0
21 02:15 Calm 10.00 Fair CLR 44.6 37.4 76% 30.09 0.0
21 01:55 Calm 10.00 Fair CLR 42.8 37.4 81% 30.09 0.0
21 01:35 Calm 9.00 Fair CLR 44.6 39.2 81% 30.09 0.0
21 01:15 Calm 10.00 Fair CLR 46.4 35.6 66% 30.09 0.0
21 00:55 Calm 10.00 Fair CLR 48.2 39.2 71% 30.09 0.0
21 00:35 Calm 10.00 Fair CLR 48.2 39.2 71% 30.1 0.0
21 00:15 Calm 10.00 Fair CLR 48.2 37.4 66% 30.1 0.0
20 23:55 Calm 10.00 Fair CLR 48.2 32 54% 30.11 0.0
20 23:35 Calm 10.00 Fair CLR 48.2 33.8 58% 30.11 0.0
20 23:15 N 3 10.00 Fair CLR 48.2 35.6 62% 30.1 0.0
20 22:55 Calm 9.00 Fair CLR 46.4 41 82% 30.1 0.0
20 22:35 Calm 10.00 Fair CLR 48.2 35.6 62% 30.1 0.0
20 22:15 Calm 9.00 Fair CLR 48.2 35.6 62% 30.1 0.0
20 21:55 NW 3 10.00 Fair CLR 48.2 41 76% 30.09 0.0
20 21:35 Calm 10.00 Fair CLR 48.2 33.8 58% 30.09 0.0
20 21:15 SE 3 8.00 A Few Clouds FEW002 50 37.4 62% 30.09 0.0
20 20:55 Calm 10.00 A Few Clouds FEW002 48.2 37.4 66% 30.09 0.0
20 20:35 Calm 10.00 Fair CLR 50 35.6 58% 30.09 0.0
20 20:15 Calm 7.00 Fair CLR 51.8 39.2 62% 30.09 0.0
20 19:55 Calm 10.00 Fair CLR 53.6 41 63% 30.09 0.0
20 19:35 E 3 10.00 Fair CLR 53.6 41 63% 30.09 0.0
20 19:15 Calm 10.00 Fair CLR 55.4 44.6 67% 30.08 0.0
20 18:55 Calm 10.00 Fair CLR 57.2 48.2 72% 30.08 0.0
20 18:35 Calm 10.00 Fair CLR 59 46.4 63% 30.08 0.0
20 18:15 Calm 9.00 Fair CLR 60.8 44.6 55% 30.08 0.0
20 17:55 Calm 9.00 Fair CLR 62.6 41 45% 30.07 0.0
20 17:35 S 5 10.00 Fair CLR 64.4 41 43% 30.07 0.0
20 17:15 S 6 9.00 Fair CLR 66.2 33.8 30% 30.07 0.0
20 16:55 SW 5 9.00 Fair CLR 68 30.2 24% 30.07 0.0
20 16:35 SW 5 9.00 Fair CLR 68 28.4 23% 30.07 0.0
20 16:15 W 7 8.00 Fair CLR 69.8 35.6 29% 30.07 0.0
20 15:55 W 6 9.00 Fair CLR 69.8 32 25% 30.07 0.0
20 15:35 Vrbl 3 9.00 Fair CLR 71.6 30.2 22% 30.07 0.0
20 15:15 Calm 9.00 Fair CLR 71.6 26.6 19% 30.07 0.0
20 14:55 W 6 9.00 Fair CLR 71.6 28.4 20% 30.07 0.0
20 14:35 SW 5 10.00 Fair CLR 73.4 28.4 19% 30.07 0.0
20 14:15 Vrbl 6 9.00 Fair CLR 71.6 32 23% 30.08 0.0
20 13:55 Vrbl 5 10.00 Fair CLR 69.8 37.4 31% 30.09 0.0
20 13:35 W 3 9.00 Fair CLR 68 41 38% 30.09 0.0
20 13:15 W 5 9.00 Fair CLR 68 42.8 40% 30.09 0.0
20 12:55 W 5 9.00 Fair CLR 68 44.6 43% 30.1 0.0
20 12:35 W 3 9.00 Fair CLR 68 42.8 40% 30.1 0.0
20 12:15 NW 6 8.00 NULL NULL 66.2 44.6 46% 30.11 0.0
20 11:35 NW 6 9.00 Fair CLR 66.2 44.6 46% 30.11 0.0
20 11:15 W 8 9.00 NULL NULL 66.2 42.8 43% 30.11 0.0
20 10:55 NW 9 7.00 NULL NULL 66.2 42.8 43% 30.11 0.0
20 10:35 NW 9 10.00 NULL NULL 64.4 42.8 46% 30.1 0.0
20 10:15 NW 8 9.00 NULL NULL 0 0 0% 30.1 0.0
20 09:55 NW 9 9.00 Fair CLR 64.4 42.8 46% 30.1 0.0
20 09:35 Vrbl 6 9.00 NULL NULL 62.6 42.8 49% 30.1 0.0
20 08:55 Calm 9.00 Fair CLR 55.4 35.6 47% 30.1 0.0
20 08:35 Calm 9.00 Fair CLR 51.8 32 47% 30.1 0.0
20 08:15 Calm 9.00 Fair CLR 46.4 37.4 71% 30.09 0.0
20 07:55 Calm 9.00 Fair CLR 42.8 33.8 71% 30.08 0.0
20 07:35 Calm 9.00 Fair CLR 42.8 33.8 71% 30.08 0.0
20 07:15 Calm 9.00 Fair CLR 42.8 32 66% 30.08 0.0
20 06:55 Calm 10.00 Fair CLR 42.8 33.8 71% 30.08 0.0
20 06:35 Calm 10.00 Fair CLR 44.6 32 61% 30.08 0.0
20 06:15 NE 3 10.00 Fair CLR 46.4 32 57% 30.08 0.0
20 05:55 Calm 10.00 Fair CLR 46.4 30.2 53% 30.07 0.0
20 05:35 Calm 10.00 A Few Clouds FEW044 46.4 32 57% 30.07 0.0
20 05:15 Calm 10.00 A Few Clouds FEW043 48.2 28.4 46% 30.07 0.0
20 04:55 NE 3 10.00 Partly Cloudy SCT042 51.8 28.4 41% 30.06 0.0
20 04:35 Calm 10.00 A Few Clouds FEW044 48.2 32 54% 30.06 0.0
20 04:15 N 5 10.00 A Few Clouds FEW044 48.2 32 54% 47 30.06 0.0
20 03:55 Calm 10.00 A Few Clouds FEW042 48.2 30.2 50% 30.06 0.0
20 03:35 NE 3 10.00 Partly Cloudy SCT042 48.2 32 54% 30.06 0.0
20 03:15 Calm 10.00 Partly Cloudy SCT042 51.8 30.2 44% 30.06 0.0
20 02:55 Calm 10.00 Partly Cloudy SCT042 48.2 33.8 58% 30.06 0.0
20 02:35 NE 3 10.00 Partly Cloudy SCT041 51.8 30.2 44% 30.06 0.0
20 02:15 NE 3 10.00 Partly Cloudy SCT040 51.8 32 47% 30.05 0.0
20 01:55 Calm 10.00 A Few Clouds FEW040 51.8 32 47% 30.05 0.0
20 01:35 Calm 10.00 Partly Cloudy SCT041 SCT046 50 33.8 54% 30.05 0.0
20 01:15 Calm 10.00 Mostly Cloudy BKN044 51.8 32 47% 30.05 0.0
20 00:55 Calm 10.00 Mostly Cloudy BKN046 BKN050 50 32 50% 30.06 0.0
20 00:35 NE 3 10.00 Mostly Cloudy BKN047 51.8 32 47% 30.06 0.0
20 00:15 NE 6 10.00 Mostly Cloudy SCT044 BKN049 53.6 30.2 41% 30.06 0.0
19 23:55 Calm 10.00 Mostly Cloudy BKN043 BKN049 51.8 32 47% 30.06 0.0
19 23:35 Calm 10.00 Mostly Cloudy SCT042 BKN048 51.8 33.8 50% 30.06 0.0
19 23:15 Calm 10.00 Mostly Cloudy FEW035 SCT042 BKN049 50 35.6 58% 30.06 0.0
19 22:55 Calm 10.00 Mostly Cloudy SCT044 BKN050 50 35.6 58% 30.06 0.0
19 22:35 NE 5 10.00 Mostly Cloudy BKN041 BKN047 51.8 33.8 50% 30.06 0.0
19 22:15 Calm 10.00 Mostly Cloudy BKN040 BKN045 53.6 33.8 47% 30.06 0.0
19 21:55 Calm 10.00 Mostly Cloudy SCT040 BKN046 51.8 35.6 54% 30.05 0.0
19 21:35 Calm 10.00 Partly Cloudy FEW038 SCT045 51.8 35.6 54% 30.05 0.0
19 21:15 Calm 10.00 A Few Clouds FEW042 53.6 35.6 51% 30.05 0.0
19 20:55 NE 6 10.00 Fair CLR 53.6 37.4 54% 30.06 0.0
19 20:35 Calm 10.00 Fair CLR 51.8 39.2 62% 30.06 0.0
19 20:15 Calm 10.00 Fair CLR 0 0 0% 0 0.0
19 19:55 NE 3 10.00 Fair CLR 53.6 42.8 67% 30.06 0.0
19 19:35 Calm 9.00 Fair CLR 53.6 44.6 72% 30.05 0.0
19 19:15 Calm 10.00 Fair CLR 55.4 44.6 67% 30.05 0.0
19 18:55 E 3 9.00 Fair CLR 59 44.6 59% 30.05 0.0
19 18:35 Calm 8.00 Fair CLR 57.2 44.6 63% 30.04 0.0
19 18:15 Calm 9.00 Fair CLR 60.8 42.8 52% 30.04 0.0
19 17:55 Calm 10.00 Fair CLR 64.4 37.4 37% 30.04 0.0
19 17:35 Calm 9.00 Fair CLR 66.2 35.6 32% 30.03 0.0
19 17:15 Calm 9.00 Fair CLR 66.2 41 40% 30.03 0.0
19 16:55 Calm 8.00 Fair CLR 64.4 46.4 52% 30.04 0.0
19 16:35 Calm 7.00 Fair CLR 0 0 0% 0 0.0
19 16:15 S 6 7.00 Fair CLR 62.6 55.4 77% 30.05 0.0
19 15:55 S 7 7.00 Fair CLR 62.6 55.4 77% 30.05 0.0
19 15:35 W 5 6.00 Fair with Haze CLR 64.4 55.4 73% 30.05 0.0
19 15:15 W 6 5.00 Fair with Haze CLR 64.4 55.4 73% 30.05 0.0
19 14:55 W 6 6.00 Fair with Haze CLR 64.4 53.6 68% 30.05 0.0
19 14:35 SW 6 7.00 Fair CLR 64.4 55.4 73% 30.05 0.0
19 14:15 Vrbl 6 7.00 Fair CLR 66.2 53.6 64% 30.05 0.0
19 13:55 SW 3 6.00 Fair with Haze CLR 66.2 51.8 60% 30.05 0.0
19 13:35 W 5 7.00 Fair CLR 68 51.8 56% 30.06 0.0
19 13:15 W 3 7.00 Fair CLR 66.2 51.8 60% 30.07 0.0
19 12:55 S 5 8.00 Fair CLR 66.2 51.8 60% 30.08 0.0
Date Time (pdt) Wind (mph) Vis. (mi.) Weather Sky Cond. Air Dwpt Max. Min. Relative Humidity Wind Chill (°F) Heat Index (°F) altimeter (in) sea level (mb) 1 hr 3 hr 6 hr
6 hour
Temperature (ºF) Pressure Precipitation (in)