Grayson County climate

Grayson County Weather in May

NOAA 1991-2020 normals for Leitchfield 2 N, 7.4 km from Grayson County

Average highs run from 72°F on May 1 to 79°F on May 31, and lows from 46°F to 55°F. Normal precipitation for the month is 4.86 in over about 11 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 Grayson County, 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
51°F
Precipitation
4.86 in
Record high
89°FMay 30, 2011
Record low
30°FMay 9, 2020
Chance of a freeze
34%
Daylight
13 h 45 min to 14 h 34 min
Cloud cover
64%
Humidity
80%
Dew point
59°F
Wind
6.3 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°F46°F83°F 201936°F 200838%0%
May 272°F47°F83°F 202436°F 202638%0%
May 373°F47°F84°F 202432°F 202638%0%
May 473°F47°F80°F 201836°F 202338%0%
May 573°F48°F84°F 201436°F 201137%0%
May 673°F48°F87°F 201440°F 201737%0%
May 773°F48°F85°F 201439°F 201737%0%
May 874°F49°F84°F 201037°F 202637%0%
May 974°F49°F84°F 201430°F 202037%0%
May 1074°F49°F84°F 201838°F 202037%0%
May 1174°F50°F85°F 201837°F 202037%0%
May 1274°F50°F86°F 201139°F 201337%0%
May 1375°F50°F85°F 201139°F 201337%0%
May 1475°F51°F85°F 201839°F 201337%0%
May 1575°F51°F87°F 201840°F 201637%0%
May 1675°F51°F85°F 201843°F 201637%0%
May 1775°F51°F83°F 201743°F 201437%0%
May 1876°F52°F85°F 201939°F 201437%0%
May 1976°F52°F86°F 202641°F 200936%0%
May 2076°F52°F87°F 202645°F 200836%0%
May 2176°F53°F86°F 202247°F 200836%0%
May 2277°F53°F85°F 202244°F 200836%0%
May 2377°F53°F84°F 200945°F 201536%0%
May 2477°F53°F86°F 201048°F 202536%0%
May 2577°F54°F86°F 201043°F 201336%0%
May 2678°F54°F86°F 202046°F 201336%0%
May 2778°F54°F85°F 201053°F 201136%0%
May 2878°F54°F86°F 201052°F 202336%0%
May 2978°F55°F86°F 201849°F 200836%0%
May 3079°F55°F89°F 201144°F 202136%0%
May 3179°F55°F89°F 201146°F 202136%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Grayson County, 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 (CDT).

May 1
sunrise 5:50 AM, sunset 7:35 PM
May 31
sunrise 5:26 AM, sunset 8:00 PM

Every day of May: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00154703 (Leitchfield 2 N), public domain. Records: NOAA GHCN-Daily, station USC00155280, 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.