Harlan County Weather in May
Average highs run from 67°F on May 1 to 78°F on May 31, and lows from 44°F to 55°F. Normal precipitation for the month is 4.35 in over about 10 wet days.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 72°F
- Average low
- 49°F
- Precipitation
- 4.35 in
- Record high
- 103°FMay 29, 1934
- Record low
- 19°FMay 1, 1909
- Chance of a freeze
- 26%
- Days of 90°F or more
- 1.7
- Daylight
- 13 h 56 min to 14 h 49 min
- Cloud cover
- 62%
- Humidity
- 61%
- Dew point
- 48°F
- Wind
- 11.6 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.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| May 1 | 67°F | 44°F | 94°F 1959 | 19°F 1909 | 30% | |
| May 2 | 68°F | 44°F | 94°F 1965 | 22°F 1967 | 30% | |
| May 3 | 68°F | 44°F | 92°F 1902 | 23°F 1907 | 30% | |
| May 4 | 68°F | 45°F | 91°F 1924 | 23°F 2013 | 30% | |
| May 5 | 69°F | 45°F | 96°F 1909 | 27°F 1935 | 31% | |
| May 6 | 69°F | 46°F | 99°F 1916 | 28°F 1944 | 31% | |
| May 7 | 69°F | 46°F | 99°F 1916 | 30°F 1976 | 31% | |
| May 8 | 70°F | 46°F | 96°F 1934 | 30°F 1908 | 31% | |
| May 9 | 70°F | 47°F | 95°F 1934 | 30°F 1908 | 31% | |
| May 10 | 70°F | 47°F | 94°F 2011 | 28°F 2020 | 31% | |
| May 11 | 71°F | 47°F | 96°F 1962 | 27°F 1946 | 32% | |
| May 12 | 71°F | 48°F | 95°F 1962 | 30°F 1943 | 32% | |
| May 13 | 71°F | 48°F | 94°F 1962 | 26°F 1966 | 32% | |
| May 14 | 72°F | 49°F | 96°F 1948 | 25°F 1904 | 32% | |
| May 15 | 72°F | 49°F | 99°F 2013 | 27°F 1907 | 32% | |
| May 16 | 72°F | 49°F | 96°F 2001 | 29°F 2014 | 32% | |
| May 17 | 73°F | 50°F | 99°F 1927 | 30°F 2011 | 32% | |
| May 18 | 73°F | 50°F | 96°F 1911 | 32°F 1915 | 32% | |
| May 19 | 73°F | 50°F | 98°F 1908 | 36°F 1915 | 32% | |
| May 20 | 74°F | 51°F | 98°F 1908 | 30°F 1968 | 32% | |
| May 21 | 74°F | 51°F | 95°F 1907 | 33°F 2015 | 32% | |
| May 22 | 75°F | 52°F | 96°F 1907 | 33°F 2015 | 32% | |
| May 23 | 75°F | 52°F | 96°F 1926 | 33°F 1997 | 32% | |
| May 24 | 75°F | 52°F | 99°F 1967 | 33°F 1924 | 32% | |
| May 25 | 76°F | 53°F | 100°F 1967 | 36°F 2002 | 32% | 0% |
| May 26 | 76°F | 53°F | 99°F 1912 | 34°F 1901 | 32% | 0% |
| May 27 | 77°F | 54°F | 97°F 2012 | 33°F 1907 | 32% | 0% |
| May 28 | 77°F | 54°F | 98°F 1934 | 32°F 1947 | 32% | 0% |
| May 29 | 77°F | 54°F | 103°F 1934 | 30°F 1947 | 32% | 0% |
| May 30 | 78°F | 55°F | 101°F 1934 | 40°F 1947 | 32% | 0% |
| May 31 | 78°F | 55°F | 98°F 1994 | 37°F 1964 | 32% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (CDT).
- May 1
- sunrise 6:37 AM, sunset 8:33 PM
- May 31
- sunrise 6:11 AM, sunset 9:00 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00257002 (Ragan), public domain. Records: NOAA GHCN-Daily, station USC00253910, 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.