0in

Rain Today

Rain Last Hour
0in

Recorded at Washington/Dulles International Airport, DC Updated 20 mins ago (4.5 miles away)

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Real-Time Extremes

Hottest 102.1 °F
Needles, Needles Airport, CA
Coldest 33.7 °F
Barrow, Wiley Post-Will Rogers Memorial Airport, AK
Windiest 27.5mph
Kivalina, Kivalina Airport, AK
Wettest (Last Hour) 0.5in
Lapeer Dupont-lapeer, MI
Most Humid 100%
Metter Municipal Airport, GA
Least Humid 6%
Nellis Air Force Base, NV
Highest Pressure 1046.4 hPa
Salida - Monarch Pass, CO
Lowest Pressure 992 hPa
Kulusuk Lufthavn, ME

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Herndon Rainfall Forecast

Today 9 Jul
70%
Thu 10 Jul
70%
Fri 11 Jul
55%
Sat 12 Jul
45%
Sun 13 Jul
55%
Mon 14 Jul
45%
Tue 15 Jul
40%

Herndon Rainfall Statistics

July Rainfall

Washington/Dulles International Airport, DC (4.3 miles)

Total Rainfall 2025
21.3in
Daily Average 2025
0.1in
Wettest Day 13 May, 2025
1.7in
Wet Days 2025
67/190 (35%)
Total Rainfall June
6.9in
Daily Average June
0.2in
Wettest Day 15 June, 2025
1.5in
Wet Days June
14/30 (47%)
Total Rainfall July
0.4in
Daily Average July
0.1in
Wettest Day 1 July, 2025
0.4in
Wet Days July
2/9 (22%)

Climate (2010–Present)

Washington/Dulles International Airport, DC (4.3 miles)

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Annual Average 2020–2024
38.7in
Monthly Average 2020–2025
3.2in
Daily Average 2020–2025
0.1in
Wettest Day 25 October, 2021
2.4in

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