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SAN MATEO, CALIFORNIA


Home > North America > United States > California
Elevation: 0 meters     Latitude: 37 37N     Longitude: 122 23W

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Number of Records: 201,089;   Date Range: 1/1/95 - 3/22/16
 
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WEATHER ALMANAC - 21 MAY, 2015
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[ °F ]   °C
Weather ElementAverageHighLow
Temperature15.1 °C18.9 °C (2:56 pm)13 °C (1:40 am)
Dewpoint10.9 °C12 °C (8:21 am)10 °C (12:56 am)
Humidity76.9 %94 % (8:21 am)59 % (2:56 pm)
Barometer1014.2 hPa1015.6 hPa (10:56 pm)1013.5 hPa (5:40 am)
Wind Speed14 km/h25.9 km/h (6:56 pm)
Wind Gust33.3 km/h (4:56 pm)
Weather ElementAverage
Visibility15.8 km
Wind DirectionWSW (243.8 °)

Weather ElementTotal
Precipitation0.25 mm
Heating Degree Days2.4 (Base 18.3)
Growing Degree Days5.9 (Base 10)
Averaged from 32 records on 21 May, 2015
WEATHER CONDITIONS BREAKOUT
WIND DIRECTION BREAKOUT
WEATHER BY HOUR - 21 MAY, 2015
[ °F ]   °C
Local TimeTemperatureDewpointHumidityBarometerVisibilityWind DirectionWind SpeedGust SpeedPrecipitationEventsConditions
12:56 AM13.3 °C10 °C80 %1014.9 hPa16.1 kmSW (230°)9.3 km/hOvercast
1:40 AM13 °C11 °C88 %1014.2 hPa16.1 kmSW (220°)9.3 km/hOvercast
1:56 AM13.3 °C10 °C80 %1014.2 hPa16.1 kmSW (220°)5.6 km/hMostly Cloudy
2:23 AM14 °C11 °C82 %1014.2 hPa16.1 kmWest (260°)9.3 km/h0 mmLight Drizzle
2:56 AM13.3 °C11.1 °C87 %1013.9 hPa16.1 kmSSW (200°)5.6 km/h0.25 mmOvercast
3:22 AM13 °C11 °C88 %1013.9 hPa16.1 kmSW (230°)9.3 km/hMostly Cloudy
3:56 AM13.3 °C10.6 °C84 %1013.9 hPa16.1 kmCalmOvercast
4:56 AM13.3 °C10 °C80 %1013.9 hPa16.1 kmWSW (240°)7.4 km/hOvercast
5:40 AM14 °C10 °C77 %1013.5 hPa16.1 kmSouth (190°)5.6 km/hOvercast
5:56 AM13.9 °C10.6 °C81 %1013.9 hPa16.1 kmSW (220°)9.3 km/hOvercast
6:10 AM14 °C11 °C82 %1013.9 hPa16.1 kmWest (260°)9.3 km/hOvercast
6:56 AM13.3 °C11.7 °C90 %1014.2 hPa9.7 kmWSW (250°)7.4 km/h0 mmOvercast
7:56 AM13.3 °C11.1 °C87 %1014.6 hPa16.1 kmWest (270°)11.1 km/hOvercast
8:21 AM13 °C12 °C94 %1014.6 hPa11.3 kmWest (260°)11.1 km/hOvercast
8:56 AM13.9 °C11.7 °C87 %1014.6 hPa16.1 kmWNW (290°)9.3 km/hOvercast
9:56 AM15 °C11.7 °C81 %1014.6 hPa16.1 kmWNW (290°)11.1 km/hOvercast
10:56 AM17.2 °C11.1 °C67 %1014.2 hPa16.1 kmWNW (300°)13 km/hOvercast
11:56 AM17.8 °C10.6 °C63 %1014.6 hPa16.1 kmWest (280°)18.5 km/hMostly Cloudy
12:30 PM18 °C11 °C64 %1014.6 hPa16.1 kmWNW (300°)16.7 km/hOvercast
12:56 PM18.3 °C10.6 °C61 %1014.2 hPa16.1 kmWest (270°)20.4 km/hOvercast
1:56 PM18 °C11 °C64 %1014.2 hPa16.1 kmWSW (240°)20.4 km/h29.6 km/hOvercast
2:56 PM18.9 °C10.6 °C59 %1014.2 hPa16.1 kmWest (260°)22.2 km/hMostly Cloudy
3:56 PM17 °C11 °C68 %1014.2 hPa16.1 kmWest (270°)24.1 km/hMostly Cloudy
4:56 PM16.7 °C11.1 °C70 %1014.2 hPa16.1 kmWSW (250°)24.1 km/h33.3 km/hMostly Cloudy
5:43 PM17 °C11 °C68 %1014.2 hPa16.1 kmWSW (240°)22.2 km/hMostly Cloudy
5:56 PM16.7 °C10.6 °C67 %1014.2 hPa16.1 kmWSW (250°)20.4 km/hMostly Cloudy
6:56 PM16.1 °C10.6 °C70 %1014.2 hPa16.1 kmWSW (250°)25.9 km/hMostly Cloudy
7:56 PM15.6 °C11.1 °C75 %1014.6 hPa16.1 kmWSW (250°)18.5 km/hMostly Cloudy
8:56 PM15 °C11.1 °C78 %1014.9 hPa16.1 kmWSW (250°)18.5 km/hMostly Cloudy
9:56 PM14.4 °C11.1 °C81 %1015.2 hPa16.1 kmWSW (250°)22.2 km/hMostly Cloudy
10:56 PM14.4 °C10.6 °C78 %1015.6 hPa16.1 kmWest (260°)16.7 km/hMostly Cloudy
11:56 PM13.9 °C10.6 °C81 %1015.6 hPa16.1 kmWSW (250°)11.1 km/hMostly Cloudy
Hourly data recorded from KSFO, located 0 kilometers away from San Mateo, California




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