Sycamore climate

Sycamore Weather in August

NOAA 1991-2020 normals for Ashburn 3 Ene, 3.2 km from Sycamore

Average highs run from 91°F on August 1 to 89°F on August 31, and lows from 71°F to 69°F.

August day by day

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

Normal daily high and low temperature at Sycamore, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
91°F
Average low
70°F
Record high
104°FAug 26, 1938
Record low
54°FAug 28, 2000
Chance of a freeze
0%
Days of 90°F or more
19.3
Daylight
13 h 40 min to 12 h 49 min
Cloud cover
56%
Humidity
75%
Dew point
71°F
Wind
6.5 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Aug 191°F71°F100°F 198661°F 1966
Aug 291°F71°F99°F 196163°F 1925
Aug 391°F71°F98°F 195465°F 1998
Aug 491°F71°F98°F 195165°F 1950
Aug 591°F71°F101°F 193560°F 1950
Aug 691°F71°F101°F 195464°F 1948
Aug 791°F71°F100°F 195461°F 1923
Aug 891°F71°F99°F 200763°F 2002
Aug 991°F71°F99°F 196861°F 2002
Aug 1091°F71°F98°F 192463°F 2002
Aug 1191°F71°F101°F 200764°F 1989
Aug 1291°F71°F99°F 192562°F 1989
Aug 1391°F71°F101°F 195461°F 1989
Aug 1491°F71°F100°F 195458°F 1964
Aug 1591°F71°F98°F 195461°F 1967
Aug 1691°F71°F101°F 199561°F 1967
Aug 1791°F70°F99°F 195465°F 1937
Aug 1891°F70°F101°F 195464°F 1925
Aug 1991°F70°F100°F 192563°F 1976
Aug 2090°F70°F101°F 192561°F 1943
Aug 2190°F70°F100°F 198360°F 1930
Aug 2290°F70°F100°F 198060°F 1930
Aug 2390°F70°F100°F 198059°F 1930
Aug 2490°F70°F101°F 193860°F 1930
Aug 2590°F70°F103°F 193857°F 1957
Aug 2690°F70°F104°F 193858°F 1997
Aug 2790°F69°F103°F 193857°F 1997
Aug 2890°F69°F99°F 193854°F 2000
Aug 2990°F69°F99°F 195959°F 1927
Aug 3089°F69°F100°F 199057°F 1986
Aug 3189°F69°F97°F 192659°F 1986

Chance of rain

Sunrise and sunset

Times for 2026, local time (EDT).

August 1
sunrise 6:51 AM, sunset 8:31 PM
August 31
sunrise 7:10 AM, sunset 7:59 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00090406 (Ashburn 3 Ene), public domain. Records: NOAA GHCN-Daily, station USC00098703, 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.