May weather in Hillsboro, OH
The average temperature in Hillsboro in May is 61.8°F (49.9°F–73.6°F). Average precipitation: 5.06 inches.
May is a spring month in Hillsboro, and is warmer than the annual average of 52.3°F. Daily temperatures swing about 23.7°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 14h 9m. For travel, May is a wet month.
Avg High
73.6°F
Avg Low
49.9°F
Precipitation
5.06 in
Daylight
14h 9m
May records in Hillsboro
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 88.0°F (1898) | -38.9°F (1925) | 0.93 in (1962) |
| May 2 | 91.0°F (1895) | 30.0°F (1961) | 2.59 in (2012) |
| May 3 | 95.0°F (1949) | 30.9°F (1956) | 1.62 in (2011) |
| May 4 | 96.1°F (1949) | 28.0°F (1900) | 1.83 in (2025) |
| May 5 | 98.1°F (1949) | 32.0°F (1900) | 2.05 in (1990) |
| May 6 | 97.0°F (1949) | 30.0°F (1968) | 1.00 in (1898) |
| May 7 | 86.0°F (1926) | 32.0°F (1974) | 1.66 in (1967) |
| May 8 | 91.0°F (1896) | 28.0°F (1947) | 2.02 in (1961) |
| May 9 | 95.0°F (1896) | 28.0°F (1947) | 1.74 in (1992) |
| May 10 | 96.1°F (1896) | 23.0°F (1966) | 1.07 in (2019) |
| May 11 | 97.0°F (1896) | 28.9°F (1945) | 1.80 in (2003) |
| May 12 | 88.0°F (1944) | 30.0°F (1938) | 2.60 in (1920) |
| May 13 | 91.9°F (1896) | 28.0°F (1895) | 3.60 in (1933) |
| May 14 | 91.0°F (1894) | 34.0°F (1895) | 2.42 in (1995) |
| May 15 | 90.0°F (1911) | 27.0°F (1895) | 1.70 in (1923) |
| May 16 | 90.0°F (1894) | 33.1°F (1904) | 1.87 in (1996) |
| May 17 | 91.0°F (1894) | 28.0°F (1895) | 2.85 in (1990) |
| May 18 | 93.0°F (1911) | 30.0°F (1895) | 1.92 in (1974) |
| May 19 | 93.0°F (1911) | 32.0°F (1916) | 1.70 in (2020) |
| May 20 | 91.0°F (1962) | 34.0°F (1894) | 1.45 in (1901) |
| May 21 | 91.0°F (1898) | 35.1°F (1954) | 0.97 in (1990) |
| May 22 | 91.9°F (1941) | 28.9°F (1895) | 4.20 in (1962) |
| May 23 | 88.0°F (1925) | 33.1°F (1895) | 1.81 in (1938) |
| May 24 | 90.0°F (1896) | 34.0°F (2002) | 2.09 in (1968) |
| May 25 | 93.0°F (1911) | 32.0°F (1925) | 2.14 in (1902) |
| May 26 | 96.1°F (1911) | 35.1°F (1925) | 2.30 in (1968) |
| May 27 | 96.1°F (1911) | 33.1°F (1925) | 1.96 in (1917) |
| May 28 | 93.9°F (1911) | 34.0°F (1902) | 1.97 in (1956) |
| May 29 | 95.0°F (1895) | 35.1°F (1949) | 1.93 in (1990) |
| May 30 | 96.1°F (1895) | 35.1°F (1947) | 1.80 in (1982) |
| May 31 | 99.0°F (1895) | 37.0°F (1894) | 1.70 in (1972) |