CHESTERFIELD, MISSOURI

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Elevation: 170 meters Latitude: 38 41N Longitude: 090 31W

WEATHER

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Number of Records: 221,284; Date Range: 1/1/95 - 3/22/16

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WEATHER ALMANAC - 21 MAY, 2013

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	21.6 ^°C	27.8 ^°C (2:51 pm)	18 ^°C (3:06 am)
Dewpoint	16.6 ^°C	17.8 ^°C (11:51 am)	14.4 ^°C (6:51 pm)
Humidity	74.1 ^%	93 ^% (4:51 am)	51 ^% (2:51 pm)
Barometer	1007.5 ^hPa	1009.1 hPa (12:42 am)	1005.4 hPa (10:51 pm)
Wind Speed	14.8 ^km/h	27.8 ^km/h (4:51 pm)
Wind Gust		37 ^km/h (2:51 pm)

Weather Element	Average
Visibility	15.9 ^km
Wind Direction	S (178.2 °)

Weather Element	Total
Precipitation	1.78 ^mm
Cooling Degree Days	4.6 (Base 18.3)
Growing Degree Days	12.9 (Base 10)

Averaged from 28 records on 21 May, 2013

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WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 21 MAY, 2013

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Gust Speed	Precipitation	Events	Conditions
12:42 AM	19 ^°C	17 ^°C	88 ^%	1009.1 hPa	16.1 ^km	Calm			0.76 mm		Overcast
12:51 AM	18.9 ^°C	16.1 ^°C	84 ^%	1007.8 hPa	16.1 ^km	Calm			0.76 mm		Overcast
1:51 AM	18.9 ^°C	16.7 ^°C	87 ^%	1007.5 hPa	16.1 ^km	SSE (160°)	11.1 ^km/h				Overcast
2:17 AM	19 ^°C	17 ^°C	88 ^%	1009.1 hPa	9.7 ^km	SSW (200°)	9.3 ^km/h		0 mm	Rain-Thunderstorm	Light Thunderstorms and Rain
2:51 AM	18.9 ^°C	16.7 ^°C	87 ^%	1008.5 hPa	16.1 ^km	SE (130°)	13 ^km/h		0.25 mm	Rain-Thunderstorm	Light Thunderstorms and Rain
3:06 AM	18 ^°C	16 ^°C	88 ^%	1008.8 hPa	16.1 ^km	SE (140°)	16.7 ^km/h				Overcast
3:51 AM	18.3 ^°C	16.7 ^°C	90 ^%	1007.8 hPa	16.1 ^km	SSE (150°)	18.5 ^km/h				Overcast
4:51 AM	18.3 ^°C	17.2 ^°C	93 ^%	1006.8 hPa	16.1 ^km	SSE (160°)	11.1 ^km/h				Overcast
5:51 AM	18.3 ^°C	17.2 ^°C	93 ^%	1006.8 hPa	16.1 ^km	SSW (200°)	11.1 ^km/h				Mostly Cloudy
6:51 AM	18.9 ^°C	16.7 ^°C	87 ^%	1007.8 hPa	16.1 ^km	SSW (200°)	18.5 ^km/h				Mostly Cloudy
6:52 AM	18.9 ^°C	16.7 ^°C	87 ^%	1007.8 hPa	16.1 ^km	SSW (200°)	18.5 ^km/h				Mostly Cloudy
7:51 AM	20 ^°C	16.7 ^°C	81 ^%	1008.5 hPa	16.1 ^km	SW (230°)	14.8 ^km/h				Overcast
8:51 AM	20.6 ^°C	16.7 ^°C	78 ^%	1008.5 hPa	16.1 ^km	South (180°)	13 ^km/h				Mostly Cloudy
9:51 AM	22.8 ^°C	16.1 ^°C	66 ^%	1008.1 hPa	16.1 ^km	SSW (200°)	14.8 ^km/h	29.6 ^km/h			Mostly Cloudy
10:51 AM	23.3 ^°C	16.7 ^°C	66 ^%	1008.1 hPa	16.1 ^km	SSW (210°)	16.7 ^km/h				Mostly Cloudy
11:51 AM	24.4 ^°C	17.8 ^°C	67 ^%	1008.1 hPa	16.1 ^km	SW (220°)	16.7 ^km/h				Mostly Cloudy
12:51 PM	25.6 ^°C	17.8 ^°C	62 ^%	1008.1 hPa	16.1 ^km	SSW (200°)	16.7 ^km/h				Mostly Cloudy
1:51 PM	27.2 ^°C	17.8 ^°C	56 ^%	1007.5 hPa	16.1 ^km	SSW (210°)	16.7 ^km/h	29.6 ^km/h			Mostly Cloudy
2:51 PM	27.8 ^°C	16.7 ^°C	51 ^%	1007.5 hPa	16.1 ^km	SSW (210°)	20.4 ^km/h	37 ^km/h			Mostly Cloudy
3:51 PM	26.1 ^°C	17.2 ^°C	58 ^%	1006.4 hPa	16.1 ^km	SSW (200°)	24.1 ^km/h				Mostly Cloudy
4:51 PM	25.6 ^°C	15 ^°C	52 ^%	1005.8 hPa	16.1 ^km	SW (220°)	27.8 ^km/h	33.3 ^km/h			Overcast
5:51 PM	24.4 ^°C	15.6 ^°C	58 ^%	1006.1 hPa	16.1 ^km	SSW (200°)	18.5 ^km/h				Mostly Cloudy
6:51 PM	24.4 ^°C	14.4 ^°C	54 ^%	1006.4 hPa	16.1 ^km	WSW (240°)	14.8 ^km/h				Mostly Cloudy
7:51 PM	23.3 ^°C	15 ^°C	59 ^%	1006.8 hPa	16.1 ^km	SW (220°)	14.8 ^km/h				Mostly Cloudy
8:51 PM	22.8 ^°C	15 ^°C	61 ^%	1006.1 hPa	16.1 ^km	South (180°)	11.1 ^km/h				Mostly Cloudy
9:51 PM	21.1 ^°C	16.7 ^°C	76 ^%	1005.8 hPa	16.1 ^km	South (170°)	14.8 ^km/h				Mostly Cloudy
10:51 PM	20.6 ^°C	16.7 ^°C	78 ^%	1005.4 hPa	16.1 ^km	SSE (160°)	14.8 ^km/h				Mostly Cloudy
11:51 PM	20 ^°C	16.7 ^°C	81 ^%	1005.8 hPa	16.1 ^km	SSW (200°)	14.8 ^km/h				Mostly Cloudy

Hourly data recorded from KSTL, located 0 kilometers away from Chesterfield, Missouri