Sycamore climate

Sycamore Weather in May

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

Average highs run from 82°F on May 1 to 88°F on May 31, and lows from 57°F to 66°F.

May 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.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
85°F
Average low
61°F
Record high
99°FMay 24, 1941
Record low
39°FMay 1, 2000
Chance of a freeze
0%
Days of 90°F or more
7.0
Daylight
13 h 26 min to 14 h 05 min
Cloud cover
49%
Humidity
71%
Dew point
62°F
Wind
7.8 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
May 182°F57°F92°F 197039°F 2000
May 282°F57°F93°F 199041°F 2000
May 382°F57°F96°F 199042°F 2026
May 482°F58°F93°F 193541°F 1971
May 583°F58°F93°F 193045°F 2026
May 683°F58°F93°F 195543°F 1925
May 783°F59°F93°F 195245°F 1944
May 883°F59°F94°F 195242°F 1928
May 984°F59°F95°F 195942°F 1928
May 1084°F60°F96°F 193644°F 1923
May 1184°F60°F95°F 201148°F 1923
May 1284°F60°F96°F 201145°F 1952
May 1385°F61°F97°F 201845°F 1960
May 1485°F61°F95°F 193344°F 1941
May 1585°F61°F96°F 193342°F 2013
May 1685°F62°F95°F 193347°F 2021
May 1786°F62°F95°F 193344°F 2011
May 1886°F62°F94°F 193344°F 2011
May 1986°F63°F97°F 193848°F 1945
May 2086°F63°F96°F 193847°F 2002
May 2186°F63°F98°F 193848°F 2002
May 2287°F63°F98°F 193847°F 1954
May 2387°F64°F98°F 194148°F 1993
May 2487°F64°F99°F 194150°F 2002
May 2587°F64°F99°F 193352°F 1967
May 2687°F65°F97°F 191248°F 1979
May 2788°F65°F99°F 201949°F 1961
May 2888°F65°F98°F 195350°F 1961
May 2988°F66°F98°F 193255°F 1925
May 3088°F66°F98°F 200650°F 1971
May 3188°F66°F97°F 201948°F 1984

Chance of rain

Sunrise and sunset

Times for 2026, local time (EDT).

May 1
sunrise 6:49 AM, sunset 8:15 PM
May 31
sunrise 6:30 AM, sunset 8:35 PM

Every day of May: 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.