May weather in Boone, IA
The average temperature in Boone in May is 59.7°F (48.5°F–71.0°F). Average precipitation: 5.17 inches.
May is a spring month in Boone, and is warmer than the annual average of 48.1°F. Daily temperatures swing about 22.5°F between overnight low and afternoon high. Expect about 14 days with precipitation. Daylight averages about 14h 23m. For travel, May is a wet month.
Avg High
71.0°F
Avg Low
48.5°F
Precipitation
5.17 in
Daylight
14h 23m
May records in Boone
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 89.1°F (1926) | 25.0°F (1909) | 1.68 in (2017) |
| May 2 | 90.0°F (1955) | 24.1°F (1925) | 1.82 in (2013) |
| May 3 | 89.1°F (1949) | 25.0°F (2005) | 1.37 in (1938) |
| May 4 | 90.0°F (1952) | 21.0°F (1907) | 1.26 in (1938) |
| May 5 | 93.0°F (1918) | 27.0°F (1929) | 1.76 in (2003) |
| May 6 | 96.1°F (1934) | 26.1°F (1925) | 1.48 in (1960) |
| May 7 | 91.9°F (1934) | 21.0°F (1931) | 2.21 in (2008) |
| May 8 | 98.1°F (1934) | 27.0°F (1980) | 1.77 in (1964) |
| May 9 | 95.0°F (1934) | 26.1°F (1923) | 4.38 in (1990) |
| May 10 | 93.9°F (1918) | 28.9°F (1981) | 1.12 in (1905) |
| May 11 | 97.0°F (2011) | 25.0°F (1925) | 2.67 in (1905) |
| May 12 | 95.0°F (2000) | 28.9°F (1928) | 2.50 in (1963) |
| May 13 | 93.0°F (1940) | 28.0°F (1997) | 3.98 in (1970) |
| May 14 | 91.9°F (1932) | 32.0°F (1926) | 2.60 in (1916) |
| May 15 | 98.1°F (2013) | 28.9°F (1926) | 1.79 in (1943) |
| May 16 | 90.0°F (1936) | 30.0°F (1929) | 1.66 in (1974) |
| May 17 | 93.0°F (1934) | 30.9°F (1973) | 1.86 in (1938) |
| May 18 | 96.1°F (1934) | 33.1°F (1915) | 2.01 in (1974) |
| May 19 | 96.1°F (1934) | 30.9°F (1929) | 2.35 in (1990) |
| May 20 | 97.0°F (1934) | 30.9°F (1907) | 2.89 in (2025) |
| May 21 | 93.0°F (1925) | 26.1°F (1931) | 3.20 in (1945) |
| May 22 | 100.9°F (1925) | 26.1°F (1963) | 1.55 in (1916) |
| May 23 | 93.9°F (1939) | 30.0°F (1963) | 1.70 in (2004) |
| May 24 | 105.1°F (1939) | 32.0°F (1930) | 2.48 in (2007) |
| May 25 | 98.1°F (1967) | 27.0°F (1925) | 1.64 in (1915) |
| May 26 | 98.1°F (1967) | 35.1°F (1925) | 1.47 in (2020) |
| May 27 | 98.1°F (2018) | 33.1°F (1907) | 2.61 in (2013) |
| May 28 | 100.0°F (2018) | 32.0°F (1928) | 2.99 in (1954) |
| May 29 | 106.0°F (1934) | 32.0°F (1947) | 2.72 in (1975) |
| May 30 | 109.9°F (1934) | 32.0°F (1930) | 5.30 in (2008) |
| May 31 | 105.1°F (1934) | 33.1°F (1930) | 2.00 in (1938) |