Herndon, VA Weather History | Weather Underground

Summary

Temperature (°F)	Actual	Historic Avg.	Record
High Temp	86	87	99
Low Temp	71	66	47
Day Average Temp	77.32	-	-

Precipitation (in)	Actual	Historic Avg.	Record
Precipitation	0.02	4.3	-

Dew Point (°F)	Actual	Historic Avg.	Record
Dew Point	65.4	-	-
High	71	-	-
Low	57	-	-
Average	65.4	-	-

Wind (mph)	Actual	Historic Avg.	Record
Max Wind Speed	13	-	-
Visibility	10	-	-

Sea Level Pressure (in)	Actual	Historic Avg.	Record
Sea Level Pressure	29.63	-	-

Astronomy	Day Length	Rise	Set
Actual Time	13h 50m	6:19 AM	8:09 PM
Civil Twilight		5:50 AM	8:38 PM
Nautical Twilight		5:15 AM	9:13 PM
Astronomical Twilight		4:38 AM	9:50 PM
Moon: Full		8:28 PM	5:22 AM

Time	Temperature	Dew Point	Humidity	Wind	Wind Speed	Wind Gust	Pressure	Precip.	Condition
12:52 AM	72 °F	70 °F	93 %	SSW	7 mph	-	29.67 in	0.02 in	Fair
1:52 AM	71 °F	70 °F	96 %	CALM	0 mph	-	29.64 in	0 in	Cloudy
2:52 AM	73 °F	71 °F	93 %	NW	3 mph	-	29.64 in	0 in	Cloudy
3:52 AM	72 °F	71 °F	97 %	SSW	3 mph	-	29.64 in	0 in	Cloudy
4:52 AM	72 °F	71 °F	97 %	CALM	0 mph	-	29.64 in	0 in	Cloudy
5:27 AM	72 °F	71 °F	97 %	SSW	3 mph	-	29.63 in	0 in	Mostly Cloudy
5:52 AM	72 °F	71 °F	97 %	CALM	0 mph	-	29.63 in	0 in	Mostly Cloudy
6:52 AM	73 °F	71 °F	93 %	NNW	5 mph	-	29.64 in	0 in	Mostly Cloudy
7:52 AM	72 °F	68 °F	87 %	N	8 mph	-	29.66 in	0 in	Cloudy
8:52 AM	72 °F	67 °F	84 %	NNW	6 mph	-	29.66 in	0 in	Light Rain
9:52 AM	75 °F	70 °F	84 %	NW	7 mph	-	29.65 in	0 in	Mostly Cloudy
10:52 AM	78 °F	66 °F	66 %	NNW	10 mph	20 mph	29.66 in	0 in	Mostly Cloudy
11:52 AM	82 °F	62 °F	51 %	NW	13 mph	-	29.65 in	0 in	Mostly Cloudy
12:52 PM	81 °F	60 °F	49 %	NW	13 mph	-	29.65 in	0 in	Partly Cloudy
1:52 PM	84 °F	58 °F	41 %	WNW	9 mph	-	29.63 in	0 in	Partly Cloudy
2:52 PM	86 °F	57 °F	37 %	NNW	9 mph	-	29.61 in	0 in	Fair
3:52 PM	85 °F	60 °F	43 %	WNW	10 mph	21 mph	29.61 in	0 in	Fair
4:52 PM	85 °F	60 °F	43 %	VAR	7 mph	17 mph	29.6 in	0 in	Fair
5:52 PM	85 °F	62 °F	46 %	WNW	10 mph	-	29.6 in	0 in	Fair
6:52 PM	84 °F	63 °F	49 %	WNW	9 mph	-	29.59 in	0 in	Fair
7:52 PM	81 °F	64 °F	56 %	WSW	3 mph	-	29.6 in	0 in	Fair
8:52 PM	76 °F	65 °F	69 %	WSW	3 mph	-	29.61 in	0 in	Fair
9:52 PM	78 °F	65 °F	64 %	NW	8 mph	-	29.63 in	0 in	Partly Cloudy
10:52 PM	77 °F	61 °F	58 %	NNW	9 mph	20 mph	29.64 in	0 in	Cloudy
11:52 PM	75 °F	61 °F	62 %	NW	9 mph	-	29.64 in	0 in	Cloudy