MCDONALD OBSERVATORY, TEXAS

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Elevation: 1756 meters Latitude: 30 32N Longitude: 104 08W

WEATHER

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Number of Records: 490,191; Date Range: 1/1/95 - 3/22/16

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WEATHER ALMANAC - 18 DECEMBER, 2014

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[ °F ] °C

Weather Element	Average	High	Low
Temperature	5.1 ^°C	15 ^°C (2:35 pm)	-4 ^°C (4:35 am)
Dewpoint	-3.6 ^°C	-1 ^°C (9:35 am)	-7 ^°C (4:35 am)
Humidity	57.6 ^%	86 ^% (3:55 am)	31 ^% (12:15 pm)
Barometer	1020.7 ^hPa	1023 hPa (10:15 am)	1018.3 hPa (3:55 pm)
Wind Speed	8 ^km/h	18.5 ^km/h (2:55 pm)

Weather Element	Average
Visibility	16.1 ^km
Wind Direction	SSE (166 °)

Weather Element	Total
Precipitation	---
Heating Degree Days	12.8 (Base 18.3)

Averaged from 72 records on 18 December, 2014

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT

WEATHER BY HOUR - 18 DECEMBER, 2014

[ °F ] °C

Local Time	Temperature	Dewpoint	Humidity	Barometer	Visibility	Wind Direction	Wind Speed	Conditions
12:15 AM	1 ^°C	-5 ^°C	65 ^%	1021.3 hPa	16.1 ^km	North (350°)	14.8 ^km/h	Clear
12:35 AM	1 ^°C	-5 ^°C	65 ^%	1021 hPa	16.1 ^km	NNW (330°)	14.8 ^km/h	Clear
12:55 AM	-1 ^°C	-6 ^°C	69 ^%	1021 hPa	16.1 ^km	NE (40°)	11.1 ^km/h	Clear
1:15 AM	0 ^°C	-5 ^°C	69 ^%	1021 hPa	16.1 ^km	NNE (20°)	9.3 ^km/h	Clear
1:35 AM	-1 ^°C	-6 ^°C	69 ^%	1021 hPa	16.1 ^km	NNE (20°)	9.3 ^km/h	Clear
1:55 AM	-1 ^°C	-5 ^°C	75 ^%	1021 hPa	16.1 ^km	NNE (20°)	5.6 ^km/h	Clear
2:15 AM	-2 ^°C	-6 ^°C	74 ^%	1021 hPa	16.1 ^km	NNW (340°)	5.6 ^km/h	Clear
2:35 AM	-2 ^°C	-6 ^°C	74 ^%	1021 hPa	16.1 ^km	NNW (330°)	7.4 ^km/h	Clear
2:55 AM	-3 ^°C	-6 ^°C	80 ^%	1021 hPa	16.1 ^km	NNW (340°)	11.1 ^km/h	Clear
3:15 AM	-3 ^°C	-6 ^°C	80 ^%	1021 hPa	16.1 ^km	North (350°)	9.3 ^km/h	Clear
3:35 AM	-2 ^°C	-6 ^°C	74 ^%	1021 hPa	16.1 ^km	North (10°)	5.6 ^km/h	Clear
3:55 AM	-3 ^°C	-5 ^°C	86 ^%	1021.3 hPa	16.1 ^km	SSE (150°)	5.6 ^km/h	Clear
4:15 AM	-2 ^°C	-6 ^°C	74 ^%	1021.3 hPa	16.1 ^km	Calm		Clear
4:35 AM	-4 ^°C	-7 ^°C	80 ^%	1021 hPa	16.1 ^km	North (350°)	5.6 ^km/h	Clear
4:55 AM	-4 ^°C	-7 ^°C	80 ^%	1021 hPa	16.1 ^km	North (350°)	7.4 ^km/h	Clear
5:15 AM	-3 ^°C	-6 ^°C	80 ^%	1021 hPa	16.1 ^km	NNE (30°)	5.6 ^km/h	Clear
5:35 AM	-3 ^°C	-6 ^°C	80 ^%	1021 hPa	16.1 ^km	North (350°)	5.6 ^km/h	Clear
5:55 AM	-3 ^°C	-6 ^°C	80 ^%	1021 hPa	16.1 ^km	NNE (20°)	7.4 ^km/h	Clear
6:15 AM	-3 ^°C	-7 ^°C	74 ^%	1021 hPa	16.1 ^km	NW (320°)	7.4 ^km/h	Clear
6:35 AM	-3 ^°C	-6 ^°C	80 ^%	1021 hPa	16.1 ^km	NNW (340°)	13 ^km/h	Clear
6:55 AM	-3 ^°C	-5 ^°C	86 ^%	1021.3 hPa	16.1 ^km	North (350°)	9.3 ^km/h	Clear
7:15 AM	-2 ^°C	-5 ^°C	80 ^%	1021.3 hPa	16.1 ^km	North (350°)	9.3 ^km/h	Clear
7:35 AM	-3 ^°C	-5 ^°C	86 ^%	1021.7 hPa	16.1 ^km	North (350°)	13 ^km/h	Clear
7:55 AM	-3 ^°C	-6 ^°C	80 ^%	1021.7 hPa	16.1 ^km	NNE (20°)	7.4 ^km/h	Clear
8:15 AM	-3 ^°C	-5 ^°C	86 ^%	1022 hPa	16.1 ^km	NNE (30°)	5.6 ^km/h	Clear
8:35 AM	1 ^°C	-3 ^°C	75 ^%	1022 hPa	16.1 ^km	Calm		Clear
8:55 AM	3 ^°C	-2 ^°C	70 ^%	1022 hPa	16.1 ^km	Calm		Clear
9:15 AM	4 ^°C	-2 ^°C	65 ^%	1022.4 hPa	16.1 ^km	Calm		Clear
9:35 AM	4 ^°C	-1 ^°C	70 ^%	1022.7 hPa	16.1 ^km	Calm		Clear
9:55 AM	6 ^°C	-2 ^°C	57 ^%	1022.7 hPa	16.1 ^km	Calm		Clear
10:15 AM	7 ^°C	-2 ^°C	53 ^%	1023 hPa	16.1 ^km	Calm		Clear
10:35 AM	9 ^°C	-1 ^°C	50 ^%	1022.7 hPa	16.1 ^km	Calm		Clear
10:55 AM	11 ^°C	-1 ^°C	44 ^%	1022.7 hPa	16.1 ^km	SE (140°)	9.3 ^km/h	Clear
11:15 AM	12 ^°C	-1 ^°C	41 ^%	1022.4 hPa	16.1 ^km	SE (140°)	7.4 ^km/h	Clear
11:35 AM	13 ^°C	-2 ^°C	36 ^%	1022 hPa	16.1 ^km	South (170°)	9.3 ^km/h	Clear
11:55 AM	13 ^°C	-2 ^°C	36 ^%	1022 hPa	16.1 ^km	South (190°)	7.4 ^km/h	Clear
12:15 PM	14 ^°C	-3 ^°C	31 ^%	1022 hPa	16.1 ^km	South (170°)	9.3 ^km/h	Clear
12:35 PM	13 ^°C	-3 ^°C	33 ^%	1021.3 hPa	16.1 ^km	South (180°)	7.4 ^km/h	Clear
12:55 PM	14 ^°C	-3 ^°C	31 ^%	1021 hPa	16.1 ^km	South (190°)	16.7 ^km/h	Clear
1:15 PM	14 ^°C	-3 ^°C	31 ^%	1020.7 hPa	16.1 ^km	SSW (200°)	11.1 ^km/h	Clear
1:35 PM	13 ^°C	-3 ^°C	33 ^%	1020.3 hPa	16.1 ^km	South (190°)	11.1 ^km/h	Clear
1:55 PM	14 ^°C	-3 ^°C	31 ^%	1020 hPa	16.1 ^km	SSW (200°)	13 ^km/h	Clear
2:15 PM	14 ^°C	-3 ^°C	31 ^%	1019.6 hPa	16.1 ^km	SSW (210°)	11.1 ^km/h	Clear
2:35 PM	15 ^°C	-2 ^°C	31 ^%	1019.3 hPa	16.1 ^km	South (170°)	14.8 ^km/h	Clear
2:55 PM	14 ^°C	-3 ^°C	31 ^%	1019 hPa	16.1 ^km	South (170°)	18.5 ^km/h	Clear
3:15 PM	14 ^°C	-2 ^°C	33 ^%	1018.6 hPa	16.1 ^km	SE (140°)	13 ^km/h	Clear
3:35 PM	14 ^°C	-3 ^°C	31 ^%	1018.6 hPa	16.1 ^km	South (170°)	13 ^km/h	Clear
3:55 PM	14 ^°C	-2 ^°C	33 ^%	1018.3 hPa	16.1 ^km	South (170°)	13 ^km/h	Clear
4:15 PM	14 ^°C	-2 ^°C	33 ^%	1018.3 hPa	16.1 ^km	SE (140°)	14.8 ^km/h	Clear
4:35 PM	13 ^°C	-2 ^°C	36 ^%	1018.3 hPa	16.1 ^km	SSE (160°)	13 ^km/h	Clear
4:55 PM	13 ^°C	-2 ^°C	36 ^%	1018.6 hPa	16.1 ^km	SSE (150°)	9.3 ^km/h	Clear
5:15 PM	13 ^°C	-2 ^°C	36 ^%	1018.6 hPa	16.1 ^km	SSE (160°)	9.3 ^km/h	Clear
5:35 PM	12 ^°C	-2 ^°C	38 ^%	1018.6 hPa	16.1 ^km	SSE (150°)	7.4 ^km/h	Clear
5:55 PM	11 ^°C	-2 ^°C	41 ^%	1018.6 hPa	16.1 ^km	SE (140°)	9.3 ^km/h	Clear
6:15 PM	10 ^°C	-3 ^°C	40 ^%	1018.6 hPa	16.1 ^km	SE (130°)	7.4 ^km/h	Clear
6:35 PM	9 ^°C	-3 ^°C	43 ^%	1019 hPa	16.1 ^km	SE (130°)	5.6 ^km/h	Clear
6:55 PM	7 ^°C	-2 ^°C	53 ^%	1019.3 hPa	16.1 ^km	ESE (110°)	5.6 ^km/h	Clear
7:15 PM	7 ^°C	-3 ^°C	49 ^%	1019 hPa	16.1 ^km	East (100°)	9.3 ^km/h	Clear
7:35 PM	6 ^°C	-3 ^°C	53 ^%	1019.3 hPa	16.1 ^km	Calm		Clear
7:55 PM	5 ^°C	-3 ^°C	57 ^%	1019.6 hPa	16.1 ^km	Calm		Clear
8:15 PM	3 ^°C	-4 ^°C	60 ^%	1019.6 hPa	16.1 ^km	Calm		Clear
8:35 PM	4 ^°C	-3 ^°C	61 ^%	1019.6 hPa	16.1 ^km	North (360°)	5.6 ^km/h	Clear
8:55 PM	4 ^°C	-3 ^°C	61 ^%	1019.6 hPa	16.1 ^km	NW (310°)	5.6 ^km/h	Clear
9:15 PM	3 ^°C	-4 ^°C	60 ^%	1020.3 hPa	16.1 ^km	NW (310°)	11.1 ^km/h	Clear
9:35 PM	4 ^°C	-3 ^°C	61 ^%	1020.7 hPa	16.1 ^km	WNW (300°)	14.8 ^km/h	Clear
9:55 PM	5 ^°C	-3 ^°C	57 ^%	1021 hPa	16.1 ^km	NW (310°)	13 ^km/h	Clear
10:15 PM	5 ^°C	-3 ^°C	57 ^%	1021 hPa	16.1 ^km	WNW (300°)	9.3 ^km/h	Partly Cloudy
10:35 PM	4 ^°C	-2 ^°C	65 ^%	1021 hPa	16.1 ^km	NNW (330°)	11.1 ^km/h	Mostly Cloudy
10:55 PM	6 ^°C	-2 ^°C	57 ^%	1021 hPa	16.1 ^km	North (10°)	5.6 ^km/h	Overcast
11:15 PM	5 ^°C	-2 ^°C	61 ^%	1021 hPa	16.1 ^km	NE (40°)	7.4 ^km/h	Overcast
11:35 PM	4 ^°C	-2 ^°C	65 ^%	1021 hPa	16.1 ^km	North (10°)	5.6 ^km/h	Overcast
11:55 PM	3 ^°C	-3 ^°C	65 ^%	1021 hPa	16.1 ^km	NNW (340°)	9.3 ^km/h	Scattered Clouds

Hourly data recorded from KMRF, located 0 kilometers away from McDonald Observatory, Texas