ST. HELENA, CALIFORNIA

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Elevation: 52 meters Latitude: 38 26N Longitude: 122 25W

WEATHER

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Number of Records: 110,348; Date Range: 4/19/11 - 3/22/16

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WEATHER ALMANAC - 20 OCTOBER, 2014

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	15.9 ^°C	22 ^°C (2:35 pm)	9 ^°C (11:15 pm)
Dewpoint	12.7 ^°C	15 ^°C (8:35 am)	9 ^°C (10:35 pm)
Humidity	82.5 ^%	100 ^% (8:35 am)	46 ^% (3:15 pm)
Barometer	1014.9 ^hPa	1018.6 hPa (11:15 pm)	1012.9 hPa (5:15 am)
Wind Speed	9.5 ^km/h	27.8 ^km/h (3:15 pm)
Wind Gust		40.7 ^km/h (3:15 pm)

Weather Element	Average
Visibility	15.4 ^km
Wind Direction	SSE (156 °)

Weather Element	Total
Precipitation	1.52 ^mm
Heating Degree Days	2.8 (Base 18.3)
Growing Degree Days	5.5 (Base 10)

Averaged from 72 records on 20 October, 2014

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 20 OCTOBER, 2014

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Precipitation	Conditions
12:15 AM	16 ^°C	14 ^°C	88 ^%	1013.5 hPa	16.1 ^km	North (10°)	5.6 ^km/h			Overcast
12:35 AM	16 ^°C	14 ^°C	88 ^%	1013.5 hPa	16.1 ^km	Calm				Overcast
12:55 AM	16 ^°C	14 ^°C	88 ^%	1013.5 hPa	16.1 ^km	Calm				Overcast
1:15 AM	15 ^°C	14 ^°C	94 ^%	1013.9 hPa	16.1 ^km	Calm				Overcast
1:35 AM	15 ^°C	14 ^°C	94 ^%	1013.9 hPa	16.1 ^km	WNW (300°)	5.6 ^km/h			Overcast
1:55 AM	15 ^°C	14 ^°C	94 ^%	1013.9 hPa	16.1 ^km	Calm				Overcast
2:15 AM	15 ^°C	14 ^°C	94 ^%	1013.9 hPa	16.1 ^km	Calm				Overcast
2:35 AM	15 ^°C	14 ^°C	94 ^%	1013.9 hPa	16.1 ^km	Calm				Overcast
2:55 AM	16 ^°C	14 ^°C	88 ^%	1013.9 hPa	16.1 ^km	Calm				Overcast
3:15 AM	15 ^°C	14 ^°C	94 ^%	1013.5 hPa	16.1 ^km	Calm				Overcast
3:35 AM	16 ^°C	14 ^°C	88 ^%	1013.5 hPa	16.1 ^km	Calm				Overcast
3:55 AM	16 ^°C	14 ^°C	88 ^%	1013.5 hPa	16.1 ^km	Calm				Overcast
4:15 AM	16 ^°C	14 ^°C	88 ^%	1013.2 hPa	16.1 ^km	Calm				Overcast
4:35 AM	16 ^°C	14 ^°C	88 ^%	1013.5 hPa	16.1 ^km	Calm				Overcast
4:55 AM	15 ^°C	14 ^°C	94 ^%	1013.2 hPa	16.1 ^km	Calm				Mostly Cloudy
5:15 AM	14 ^°C	13 ^°C	94 ^%	1012.9 hPa	16.1 ^km	NNE (30°)	5.6 ^km/h			Partly Cloudy
5:35 AM	14 ^°C	13 ^°C	94 ^%	1012.9 hPa	16.1 ^km	Calm				Clear
5:55 AM	14 ^°C	13 ^°C	94 ^%	1013.2 hPa	16.1 ^km	SE (140°)	5.6 ^km/h			Clear
6:15 AM	13 ^°C	12 ^°C	94 ^%	1013.2 hPa	16.1 ^km	East (80°)	5.6 ^km/h			Clear
6:35 AM	13 ^°C	12 ^°C	94 ^%	1013.5 hPa	16.1 ^km	ENE (70°)	5.6 ^km/h			Mostly Cloudy
6:55 AM	14 ^°C	13 ^°C	94 ^%	1013.2 hPa	16.1 ^km	Calm				Overcast
7:15 AM	14 ^°C	13 ^°C	94 ^%	1013.2 hPa	16.1 ^km	Calm				Overcast
7:35 AM	15 ^°C	14 ^°C	94 ^%	1013.2 hPa	16.1 ^km	Calm				Overcast
7:55 AM	16 ^°C	14 ^°C	88 ^%	1013.2 hPa	16.1 ^km	ESE (110°)	5.6 ^km/h			Overcast
8:15 AM	16 ^°C	14 ^°C	88 ^%	1013.9 hPa	16.1 ^km	Calm				Overcast
8:35 AM	15 ^°C	15 ^°C	100 ^%	1014.6 hPa	1.6 ^km	WSW (240°)	7.4 ^km/h		0.25 mm	Overcast
8:55 AM	15 ^°C	15 ^°C	100 ^%	1014.9 hPa	4.8 ^km	West (280°)	7.4 ^km/h		0.51 mm	Overcast
9:15 AM	15 ^°C	15 ^°C	100 ^%	1014.9 hPa	4 ^km	WNW (290°)	14.8 ^km/h		0.25 mm	Mostly Cloudy
9:35 AM	15 ^°C	15 ^°C	100 ^%	1015.2 hPa	8 ^km	WNW (290°)	11.1 ^km/h		0.25 mm	Overcast
9:55 AM	16 ^°C	15 ^°C	94 ^%	1015.2 hPa	16.1 ^km	WNW (290°)	9.3 ^km/h		0.25 mm	Overcast
10:15 AM	17 ^°C	15 ^°C	88 ^%	1015.2 hPa	16.1 ^km	WNW (290°)	13 ^km/h			Overcast
10:35 AM	17 ^°C	15 ^°C	88 ^%	1015.6 hPa	11.3 ^km	West (280°)	13 ^km/h			Mostly Cloudy
10:55 AM	18 ^°C	15 ^°C	83 ^%	1015.2 hPa	16.1 ^km	West (270°)	11.1 ^km/h			Overcast
11:15 AM	18 ^°C	15 ^°C	83 ^%	1015.6 hPa	16.1 ^km	West (280°)	13 ^km/h			Overcast
11:35 AM	18 ^°C	15 ^°C	83 ^%	1015.6 hPa	16.1 ^km	West (270°)	18.5 ^km/h			Overcast
11:55 AM	19 ^°C	15 ^°C	78 ^%	1015.2 hPa	16.1 ^km	West (270°)	14.8 ^km/h			Overcast
12:15 PM	19 ^°C	14 ^°C	73 ^%	1015.6 hPa	16.1 ^km	WNW (290°)	18.5 ^km/h			Overcast
12:35 PM	19 ^°C	14 ^°C	73 ^%	1015.2 hPa	16.1 ^km	West (260°)	20.4 ^km/h			Overcast
12:55 PM	19 ^°C	13 ^°C	68 ^%	1015.2 hPa	16.1 ^km	West (270°)	18.5 ^km/h	25.9 ^km/h		Overcast
1:15 PM	19 ^°C	13 ^°C	68 ^%	1015.2 hPa	16.1 ^km	West (270°)	20.4 ^km/h			Overcast
1:35 PM	20 ^°C	13 ^°C	64 ^%	1015.2 hPa	16.1 ^km	West (270°)	22.2 ^km/h	31.5 ^km/h		Overcast
1:55 PM	20 ^°C	12 ^°C	60 ^%	1014.9 hPa	16.1 ^km	West (270°)	24.1 ^km/h	33.3 ^km/h		Overcast
2:15 PM	21 ^°C	12 ^°C	56 ^%	1014.9 hPa	16.1 ^km	West (280°)	20.4 ^km/h	31.5 ^km/h		Mostly Cloudy
2:35 PM	22 ^°C	11 ^°C	50 ^%	1014.9 hPa	16.1 ^km	West (270°)	24.1 ^km/h	37 ^km/h		Mostly Cloudy
2:55 PM	21 ^°C	12 ^°C	56 ^%	1014.9 hPa	16.1 ^km	West (270°)	20.4 ^km/h			Scattered Clouds
3:15 PM	22 ^°C	10 ^°C	46 ^%	1014.9 hPa	16.1 ^km	West (260°)	27.8 ^km/h	40.7 ^km/h		Partly Cloudy
3:35 PM	20 ^°C	11 ^°C	56 ^%	1014.9 hPa	16.1 ^km	West (270°)	27.8 ^km/h	40.7 ^km/h		Clear
3:55 PM	20 ^°C	10 ^°C	52 ^%	1015.2 hPa	16.1 ^km	West (270°)	24.1 ^km/h	38.9 ^km/h		Clear
4:15 PM	20 ^°C	10 ^°C	52 ^%	1015.2 hPa	16.1 ^km	West (260°)	22.2 ^km/h	37 ^km/h		Partly Cloudy
4:35 PM	19 ^°C	11 ^°C	60 ^%	1015.2 hPa	16.1 ^km	West (270°)	18.5 ^km/h	35.2 ^km/h		Scattered Clouds
4:55 PM	19 ^°C	10 ^°C	56 ^%	1015.2 hPa	16.1 ^km	West (280°)	22.2 ^km/h	37 ^km/h		Overcast
5:15 PM	18 ^°C	12 ^°C	68 ^%	1015.2 hPa	16.1 ^km	West (280°)	16.7 ^km/h	31.5 ^km/h		Mostly Cloudy
5:35 PM	19 ^°C	13 ^°C	68 ^%	1015.2 hPa	16.1 ^km	West (260°)	25.9 ^km/h	33.3 ^km/h		Mostly Cloudy
5:55 PM	18 ^°C	12 ^°C	68 ^%	1015.2 hPa	16.1 ^km	West (270°)	24.1 ^km/h	35.2 ^km/h		Scattered Clouds
6:15 PM	17 ^°C	12 ^°C	72 ^%	1015.6 hPa	16.1 ^km	WNW (290°)	16.7 ^km/h			Clear
6:35 PM	17 ^°C	12 ^°C	72 ^%	1015.6 hPa	16.1 ^km	West (280°)	20.4 ^km/h	27.8 ^km/h		Clear
6:55 PM	17 ^°C	12 ^°C	72 ^%	1015.9 hPa	16.1 ^km	West (280°)	14.8 ^km/h	25.9 ^km/h		Partly Cloudy
7:15 PM	16 ^°C	12 ^°C	77 ^%	1016.3 hPa	16.1 ^km	WNW (290°)	11.1 ^km/h			Scattered Clouds
7:35 PM	15 ^°C	12 ^°C	82 ^%	1016.6 hPa	16.1 ^km	West (280°)	13 ^km/h			Mostly Cloudy
7:55 PM	15 ^°C	12 ^°C	82 ^%	1016.6 hPa	16.1 ^km	West (280°)	13 ^km/h			Mostly Cloudy
8:15 PM	14 ^°C	12 ^°C	88 ^%	1016.6 hPa	16.1 ^km	West (280°)	11.1 ^km/h			Mostly Cloudy
8:35 PM	14 ^°C	12 ^°C	88 ^%	1016.6 hPa	16.1 ^km	West (270°)	9.3 ^km/h			Overcast
8:55 PM	13 ^°C	11 ^°C	88 ^%	1016.6 hPa	16.1 ^km	NW (320°)	5.6 ^km/h			Overcast
9:15 PM	13 ^°C	11 ^°C	88 ^%	1016.9 hPa	16.1 ^km	Calm				Overcast
9:35 PM	12 ^°C	10 ^°C	88 ^%	1016.9 hPa	16.1 ^km	Calm				Overcast
9:55 PM	12 ^°C	10 ^°C	88 ^%	1017.3 hPa	16.1 ^km	Calm				Overcast
10:15 PM	11 ^°C	10 ^°C	94 ^%	1017.9 hPa	16.1 ^km	Calm				Overcast
10:35 PM	10 ^°C	9 ^°C	94 ^%	1017.9 hPa	16.1 ^km	Calm				Overcast
10:55 PM	10 ^°C	9 ^°C	94 ^%	1018.3 hPa	16.1 ^km	Calm				Overcast
11:15 PM	9 ^°C	9 ^°C	100 ^%	1018.6 hPa	16.1 ^km	Calm				Overcast
11:35 PM	10 ^°C	10 ^°C	100 ^%	1018.6 hPa	16.1 ^km	Calm				Overcast
11:55 PM	10 ^°C	9 ^°C	94 ^%	1018.6 hPa	16.1 ^km	Calm				Overcast

Hourly data recorded from KO69, located 0 kilometers away from St. Helena, California