Oak Grove climate

Oak Grove Weather in May

NOAA 1991-2020 normals for Washington Dc Dulles AP, 7 km from Oak Grove

Average highs run from 72°F on May 1 to 79°F on May 31, and lows from 48°F to 57°F. Normal precipitation for the month is 4.72 in over about 13 wet days.

May day by day

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

Normal daily high and low temperature at Oak Grove, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

May at a glance

Average high
75°F
Average low
53°F
Precipitation
4.72 in
Record high
97°FMay 29, 1969
Record low
28°FMay 7, 1970
Chance of a freeze
10%
Days of 90°F or more
1.4
Daylight
13 h 50 min to 14 h 43 min
Cloud cover
64%
Humidity
77%
Dew point
55°F
Wind
7.2 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
May 172°F48°F90°F 201033°F 199640%0%
May 272°F49°F91°F 202434°F 196040%0%
May 372°F49°F92°F 196532°F 196340%0%
May 472°F49°F90°F 200131°F 196740%0%
May 573°F50°F88°F 198029°F 197640%0%
May 673°F50°F90°F 198636°F 196840%0%
May 773°F50°F90°F 198628°F 197041%0%
May 873°F51°F90°F 200029°F 197441%0%
May 974°F51°F91°F 196330°F 197641%0%
May 1074°F51°F90°F 196331°F 196641%0%
May 1174°F52°F90°F 199329°F 196640%0%
May 1274°F52°F90°F 201834°F 196940%0%
May 1374°F52°F92°F 200032°F 197640%0%
May 1475°F52°F89°F 201032°F 199640%0%
May 1575°F53°F90°F 196237°F 198440%0%
May 1675°F53°F90°F 199835°F 200040%0%
May 1775°F53°F93°F 196030°F 198440%0%
May 1875°F54°F95°F 202633°F 197340%0%
May 1976°F54°F96°F 202636°F 200240%0%
May 2076°F54°F95°F 202636°F 200240%0%
May 2176°F55°F92°F 199633°F 199240%0%
May 2276°F55°F91°F 202231°F 200239%0%
May 2377°F55°F92°F 196439°F 197139%0%
May 2477°F55°F90°F 196436°F 196339%0%
May 2577°F56°F92°F 199136°F 196739%0%
May 2677°F56°F92°F 200738°F 196739%0%
May 2778°F56°F92°F 196537°F 197239%0%
May 2878°F57°F90°F 199137°F 199439%0%
May 2978°F57°F97°F 196940°F 199738%0%
May 3078°F57°F95°F 198738°F 199638%0%
May 3179°F57°F94°F 199137°F 198438%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Oak Grove, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

May 1
sunrise 6:12 AM, sunset 8:02 PM
May 31
sunrise 5:46 AM, sunset 8:29 PM

Every day of May: 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.