Chantilly climate

Chantilly Weather in April

NOAA 1991-2020 normals for Washington Dc Dulles AP, 5.9 km from Chantilly

Average highs run from 61°F on April 1 to 72°F on April 30, and lows from 38°F to 48°F. Normal precipitation for the month is 3.47 in over about 11 wet days.

April day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Chantilly, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
67°F
Average low
43°F
Precipitation
3.47 in
Snowfall
0.1 in
Record high
93°FApr 6, 2010
Record low
17°FApr 1, 1969
Chance of a freeze
87%
Daylight
12 h 39 min to 13 h 48 min
Cloud cover
65%
Humidity
77%
Dew point
45°F
Wind
8.5 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Apr 161°F38°F86°F 202617°F 196936%2%
Apr 262°F39°F86°F 196721°F 196436%2%
Apr 362°F39°F86°F 198123°F 199136%2%
Apr 462°F39°F87°F 202622°F 196536%2%
Apr 563°F40°F88°F 202322°F 196536%2%
Apr 663°F40°F93°F 201024°F 196636%2%
Apr 764°F40°F91°F 201021°F 197736%1%
Apr 864°F41°F87°F 199124°F 197037%1%
Apr 965°F41°F89°F 200123°F 197737%1%
Apr 1065°F41°F89°F 201319°F 198537%1%
Apr 1165°F42°F87°F 197725°F 196037%1%
Apr 1266°F42°F87°F 197723°F 198237%1%
Apr 1366°F42°F87°F 197724°F 199037%1%
Apr 1467°F43°F87°F 196020°F 197537%1%
Apr 1567°F43°F91°F 202628°F 197138%1%
Apr 1667°F43°F92°F 202628°F 198138%1%
Apr 1768°F44°F93°F 200227°F 198338%1%
Apr 1868°F44°F90°F 197629°F 201838%0%
Apr 1968°F44°F91°F 200227°F 199038%0%
Apr 2069°F45°F88°F 197628°F 197438%0%
Apr 2169°F45°F89°F 198527°F 202639%0%
Apr 2269°F45°F92°F 198527°F 197539%0%
Apr 2370°F46°F88°F 200130°F 198939%0%
Apr 2470°F46°F86°F 202630°F 198939%0%
Apr 2570°F46°F93°F 196029°F 196939%0%
Apr 2671°F47°F92°F 199031°F 196739%0%
Apr 2771°F47°F92°F 199031°F 197239%0%
Apr 2871°F48°F88°F 198132°F 197239%0%
Apr 2971°F48°F91°F 202432°F 198740%0%
Apr 3072°F48°F88°F 202429°F 197740%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Chantilly, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

April 1
sunrise 6:54 AM, sunset 7:33 PM
April 30
sunrise 6:13 AM, sunset 8:01 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00093738 (Washington Dc Dulles AP), public domain. Records: NOAA GHCN-Daily, station USW00093738, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.