MERCER ISLAND, WASHINGTON

Home > North America > United States > Washington
Elevation: 69 meters Latitude: 47 32N Longitude: 122 18W

WEATHER

Monthly - Summary

Hourly Data

SELECT A DAY

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

PRINT THIS DATA

[ ← Previous Day ]
WEATHER ALMANAC - 21 MAY, 2015

[ Next Day → ]

[ °F ] °C

Weather Element	Average	High	Low
Temperature	20.4 ^°C	26.7 ^°C (4:53 pm)	14.4 ^°C (3:53 am)
Dewpoint	11.3 ^°C	13.3 ^°C (3:53 pm)	10 ^°C (3:53 am)
Humidity	56.9 ^%	75 ^% (3:53 am)	40 ^% (5:53 pm)
Barometer	1010.8 ^hPa	1011.9 hPa (3:53 am)	1009.5 hPa (5:53 pm)
Wind Speed	4.3 ^km/h	11.1 ^km/h (1:53 pm)

Weather Element	Average
Visibility	16.1 ^km
Wind Direction	E (84.6 °)

Weather Element	Total
Precipitation	---
Cooling Degree Days	2.2 (Base 18.3)
Growing Degree Days	10.6 (Base 10)

Averaged from 24 records on 21 May, 2015

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 21 MAY, 2015

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Conditions
12:53 AM	17.2 ^°C	10.6 ^°C	65 ^%	1011.5 hPa	16.1 ^km	Calm		Clear
1:53 AM	16.7 ^°C	10.6 ^°C	67 ^%	1011.5 hPa	16.1 ^km	Calm		Clear
2:53 AM	15.6 ^°C	10.6 ^°C	72 ^%	1011.5 hPa	16.1 ^km	Calm		Clear
3:53 AM	14.4 ^°C	10 ^°C	75 ^%	1011.9 hPa	16.1 ^km	Calm		Clear
4:53 AM	15 ^°C	10.6 ^°C	75 ^%	1011.9 hPa	16.1 ^km	Calm		Clear
5:53 AM	15 ^°C	10 ^°C	72 ^%	1011.5 hPa	16.1 ^km	Calm		Scattered Clouds
6:53 AM	15.6 ^°C	10.6 ^°C	72 ^%	1011.9 hPa	16.1 ^km	Calm		Scattered Clouds
7:53 AM	16.7 ^°C	11.1 ^°C	70 ^%	1011.9 hPa	16.1 ^km	Calm		Mostly Cloudy
8:53 AM	17.8 ^°C	11.7 ^°C	67 ^%	1011.9 hPa	16.1 ^km	NW (310°)	5.6 ^km/h	Scattered Clouds
9:53 AM	18.9 ^°C	11.7 ^°C	63 ^%	1011.5 hPa	16.1 ^km	Variable	5.6 ^km/h	Scattered Clouds
10:53 AM	20 ^°C	11.7 ^°C	59 ^%	1011.5 hPa	16.1 ^km	Variable	7.4 ^km/h	Scattered Clouds
11:53 AM	22.2 ^°C	10.6 ^°C	48 ^%	1011.5 hPa	16.1 ^km	WNW (300°)	7.4 ^km/h	Mostly Cloudy
12:53 PM	22.8 ^°C	10.6 ^°C	46 ^%	1011.2 hPa	16.1 ^km	Variable	9.3 ^km/h	Mostly Cloudy
1:53 PM	24.4 ^°C	10.6 ^°C	42 ^%	1010.5 hPa	16.1 ^km	NNW (330°)	11.1 ^km/h	Mostly Cloudy
2:53 PM	24.4 ^°C	12.2 ^°C	46 ^%	1009.8 hPa	16.1 ^km	Calm		Mostly Cloudy
3:53 PM	26.1 ^°C	13.3 ^°C	45 ^%	1009.8 hPa	16.1 ^km	Calm		Mostly Cloudy
4:53 PM	26.7 ^°C	13.3 ^°C	43 ^%	1009.8 hPa	16.1 ^km	SSW (210°)	9.3 ^km/h	Mostly Cloudy
5:53 PM	26.7 ^°C	12.2 ^°C	40 ^%	1009.5 hPa	16.1 ^km	Variable	5.6 ^km/h	Mostly Cloudy
6:53 PM	26.1 ^°C	12.2 ^°C	42 ^%	1009.5 hPa	16.1 ^km	Variable	9.3 ^km/h	Mostly Cloudy
7:53 PM	25 ^°C	11.7 ^°C	43 ^%	1009.5 hPa	16.1 ^km	NW (310°)	7.4 ^km/h	Mostly Cloudy
8:53 PM	23.9 ^°C	11.1 ^°C	44 ^%	1009.8 hPa	16.1 ^km	Calm		Scattered Clouds
9:53 PM	22.2 ^°C	10.6 ^°C	48 ^%	1010.5 hPa	16.1 ^km	Variable	5.6 ^km/h	Clear
10:53 PM	20 ^°C	10.6 ^°C	55 ^%	1011.2 hPa	16.1 ^km	NNW (330°)	7.4 ^km/h	Clear
11:53 PM	17.8 ^°C	11.7 ^°C	67 ^%	1011.9 hPa	16.1 ^km	WSW (240°)	11.1 ^km/h	Clear

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