Herndon August Weather Averages Virginia, United States of America

August Weather Averages for Herndon

High Temp	30°C	86°F
Low Temp	20°C	68°F
Avg Temp	24°C	76°F
Sunshine Hours	213 hours
Rainfall	112.43 mm	4.43 In
Rain days	11 days
Pressure	1016 mb	30 In

Herndon August Averages Year by Year

Year	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
2008	29°C / 84°F	18°C / 64°F	23°C / 73°F	263 hours	53.72 mm / 2.12 In	7 days	1014 mb / 30 In
2009	31°C / 87°F	20°C / 68°F	25°C / 77°F	233 hours	84.50 mm / 3.33 In	10 days	1016 mb / 30 In
2010	31°C / 89°F	20°C / 68°F	25°C / 77°F	238 hours	100.20 mm / 3.94 In	8 days	1015 mb / 30 In
2011	30°C / 86°F	19°C / 67°F	24°C / 75°F	243 hours	166.99 mm / 6.57 In	13 days	1012 mb / 30 In
2012	30°C / 86°F	20°C / 67°F	24°C / 76°F	246 hours	91.28 mm / 3.59 In	14 days	1015 mb / 30 In
2013	28°C / 83°F	18°C / 64°F	23°C / 73°F	201 hours	72.80 mm / 2.87 In	10 days	1017 mb / 30 In
2014	29°C / 84°F	18°C / 64°F	23°C / 73°F	203 hours	72.27 mm / 2.85 In	9 days	1016 mb / 30 In
2015	31°C / 87°F	19°C / 65°F	24°C / 75°F	233 hours	49.50 mm / 1.95 In	6 days	1015 mb / 30 In
2016	32°C / 90°F	21°C / 70°F	26°C / 79°F	242 hours	37.57 mm / 1.48 In	5 days	1017 mb / 31 In
2017	29°C / 83°F	20°C / 68°F	24°C / 75°F	238 hours	109.27 mm / 4.30 In	11 days	1017 mb / 31 In
2018	31°C / 87°F	22°C / 71°F	26°C / 78°F	236 hours	157.07 mm / 6.18 In	12 days	1017 mb / 31 In
2019	30°C / 86°F	20°C / 68°F	25°C / 76°F	229 hours	109.13 mm / 4.30 In	16 days	1015 mb / 30 In
2020	29°C / 84°F	21°C / 70°F	25°C / 76°F	127 hours	288.09 mm / 11.34 In	21 days	1014 mb / 30 In
2021	31°C / 88°F	21°C / 70°F	26°C / 79°F	172 hours	130.86 mm / 5.15 In	14 days	1017 mb / 31 In
2022	31°C / 87°F	20°C / 68°F	25°C / 76°F	192 hours	96.40 mm / 3.80 In	9 days	1016 mb / 30 In
2023	31°C / 88°F	19°C / 66°F	25°C / 76°F	179 hours	95.15 mm / 3.75 In	7 days	1013 mb / 30 In
2024	29°C / 84°F	19°C / 66°F	23°C / 74°F	189 hours	137.82 mm / 5.43 In	3 days	1016 mb / 30 In

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