Herndon Weather History Virginia, United States of America

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Past date must be from 1st Jan, 2009 onwards.

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Fri 29 Aug, 2025 Weather in Herndon

Sunrise: 06:36 AM
Sunset: 07:44 PM
Moonrise: 12:57 PM
Moonset: 10:34 PM
Max:
25.8 °c
Min:
15.9 °c
Avg:
21.1 °c
Precip:
0.00 mm
Max Wind:
18.0 kph
 
Fri 29
0:00 am
Fri 29
3:00 am
Fri 29
6:00 am
Fri 29
9:00 am
Fri 29
12:00 pm
Fri 29
3:00 pm
Fri 29
6:00 pm
Fri 29
9:00 pm
IconPartly cloudyClearClearSunnySunnyPartly cloudyPartly cloudyClear
Temp20.8°c18.5°c15.9°c20.1°c25.2°c25.8°c24.3°c19.7°c
Wind6.5 kmph4.0 kmph6.1 kmph10.8 kmph15.8 kmph18.0 kmph14.8 kmph11.9 kmph
Precip0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm0.00 mm
Cloud33%21%0%25%2%57%55%8%
Humidity59%69%85%61%52%44%44%54%
Pressure1018 mb1017 mb1017 mb1018 mb1017 mb1016 mb1016 mb1017 mb

Herndon Annual Weather Averages

MonthHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
January5°C / 41°F-3°C / 27°F1°C / 33°F173 hours84.33 mm / 3.32 In7 days1019 mb / 31 In
February7°C / 45°F-1°C / 30°F3°C / 37°F151 hours104.76 mm / 4.12 In7 days1019 mb / 31 In
March12°C / 54°F3°C / 37°F7°C / 45°F163 hours95.93 mm / 3.78 In7 days1018 mb / 31 In
April18°C / 65°F8°C / 46°F13°C / 55°F173 hours115.90 mm / 4.56 In7 days1016 mb / 30 In
May24°C / 74°F13°C / 56°F18°C / 65°F176 hours142.02 mm / 5.59 In10 days1016 mb / 30 In
June29°C / 84°F18°C / 64°F23°C / 73°F214 hours130.87 mm / 5.15 In10 days1014 mb / 30 In
July32°C / 89°F21°C / 69°F26°C / 79°F228 hours141.13 mm / 5.56 In10 days1015 mb / 30 In
August30°C / 86°F20°C / 68°F25°C / 76°F214 hours111.91 mm / 4.41 In11 days1016 mb / 30 In
September26°C / 79°F16°C / 61°F21°C / 70°F201 hours129.13 mm / 5.08 In8 days1018 mb / 31 In
October20°C / 68°F10°C / 50°F15°C / 58°F201 hours106.83 mm / 4.21 In6 days1018 mb / 31 In
November13°C / 55°F4°C / 39°F8°C / 46°F212 hours87.13 mm / 3.43 In5 days1021 mb / 31 In
December8°C / 46°F1°C / 33°F4°C / 39°F173 hours118.74 mm / 4.67 In7 days1020 mb / 31 In
Virginia

 

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