MERCER ISLAND, WASHINGTON

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Elevation: 69 meters Latitude: 47 32N Longitude: 122 18W

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Number of Records: 203,288; Date Range: 1/1/95 - 3/21/16

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WEATHER ALMANAC - 12 SEPTEMBER, 2014

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	18.8 ^°C	23.9 ^°C (2:53 pm)	13.3 ^°C (6:53 am)
Dewpoint	3.4 ^°C	6.1 ^°C (3:53 am)	-1.1 ^°C (2:53 pm)
Humidity	37.5 ^%	59 ^% (3:53 am)	19 ^% (2:53 pm)
Barometer	1016.6 ^hPa	1019.6 hPa (1:53 am)	1014.6 hPa (5:53 pm)
Wind Speed	6.4 ^km/h	22.2 ^km/h (1:53 pm)
Wind Gust		31.5 ^km/h (1:53 pm)

Weather Element	Average
Visibility	16.1 ^km
Wind Direction	SSE (144.3 °)

Weather Element	Total
Precipitation	---
Cooling Degree Days	0.3 (Base 18.3)
Growing Degree Days	8.6 (Base 10)

Averaged from 23 records on 12 September, 2014

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 12 SEPTEMBER, 2014

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Conditions
1:53 AM	15 ^°C	4.4 ^°C	49 ^%	1019.6 hPa	16.1 ^km	Calm			Clear
2:53 AM	14.4 ^°C	3.9 ^°C	49 ^%	1019.3 hPa	16.1 ^km	NW (320°)	5.6 ^km/h		Clear
3:53 AM	13.9 ^°C	6.1 ^°C	59 ^%	1019.3 hPa	16.1 ^km	Calm			Clear
4:53 AM	13.9 ^°C	2.8 ^°C	47 ^%	1019 hPa	16.1 ^km	Calm			Clear
5:53 AM	13.9 ^°C	3.3 ^°C	49 ^%	1018.6 hPa	16.1 ^km	Calm			Clear
6:53 AM	13.3 ^°C	1.1 ^°C	44 ^%	1018.6 hPa	16.1 ^km	Calm			Clear
7:53 AM	15 ^°C	0.6 ^°C	38 ^%	1018.3 hPa	16.1 ^km	Calm			Clear
8:53 AM	16.7 ^°C	1.1 ^°C	35 ^%	1018.3 hPa		Calm			Clear
9:53 AM	18.9 ^°C	2.2 ^°C	33 ^%	1017.9 hPa	16.1 ^km	NW (310°)	7.4 ^km/h		Clear
10:53 AM	20 ^°C	3.9 ^°C	35 ^%	1017.9 hPa	16.1 ^km	Variable	9.3 ^km/h		Clear
11:53 AM	21.7 ^°C	3.3 ^°C	30 ^%	1017.3 hPa	16.1 ^km	WNW (300°)	14.8 ^km/h		Clear
12:53 PM	22.8 ^°C	2.2 ^°C	26 ^%	1016.3 hPa	16.1 ^km	NW (310°)	14.8 ^km/h	27.8 ^km/h	Clear
1:53 PM	23.3 ^°C	2.8 ^°C	26 ^%	1015.9 hPa	16.1 ^km	WNW (300°)	22.2 ^km/h	31.5 ^km/h	Clear
2:53 PM	23.9 ^°C	-1.1 ^°C	19 ^%	1015.6 hPa	16.1 ^km	NW (310°)	16.7 ^km/h	25.9 ^km/h	Clear
3:53 PM	23.3 ^°C	3.9 ^°C	28 ^%	1014.9 hPa	16.1 ^km	NW (310°)	16.7 ^km/h	27.8 ^km/h	Clear
4:53 PM	22.8 ^°C	3.9 ^°C	29 ^%	1014.9 hPa	16.1 ^km	NW (310°)	11.1 ^km/h	27.8 ^km/h	Clear
5:53 PM	22.8 ^°C	4.4 ^°C	30 ^%	1014.6 hPa	16.1 ^km	WNW (300°)	11.1 ^km/h		Clear
6:53 PM	21.7 ^°C	5 ^°C	34 ^%	1014.6 hPa	16.1 ^km	NW (310°)	7.4 ^km/h		Clear
7:53 PM	21.1 ^°C	4.4 ^°C	33 ^%	1014.6 hPa	16.1 ^km	Variable	5.6 ^km/h		Clear
8:53 PM	19.4 ^°C	5.6 ^°C	40 ^%	1014.6 hPa	16.1 ^km	Calm			Clear
9:53 PM	18.9 ^°C	6.1 ^°C	43 ^%	1014.6 hPa	16.1 ^km	Calm			Clear
10:53 PM	18.3 ^°C	5 ^°C	42 ^%	1014.9 hPa	16.1 ^km	WSW (240°)	5.6 ^km/h		Clear
11:53 PM	17.2 ^°C	5 ^°C	45 ^%	1015.2 hPa	16.1 ^km	Calm			Clear

Hourly data recorded from KBFI, located 0 kilometers away from Mercer Island, Washington