May weather in Preston, IA
The average temperature in Preston in May is 59.8°F (49.3°F–70.3°F). Average precipitation: 4.21 inches.
May is a spring month in Preston, and is warmer than the annual average of 47.9°F. Daily temperatures swing about 21°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 23m. For travel, May is a comfortable month to visit.
Avg High
70.3°F
Avg Low
49.3°F
Precipitation
4.21 in
Snow
0.1 in
May records in Preston
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 89.1°F (2007) | 27.0°F (1903) | 1.29 in (1973) |
| May 2 | 91.0°F (1901) | 28.0°F (1932) | 1.28 in (1973) |
| May 3 | 89.1°F (1959) | 21.0°F (2005) | 2.89 in (1919) |
| May 4 | 89.1°F (1914) | 21.9°F (2005) | 1.33 in (1919) |
| May 5 | 90.0°F (1934) | 27.0°F (2005) | 2.11 in (2015) |
| May 6 | 96.1°F (1934) | 28.9°F (1992) | 1.68 in (1918) |
| May 7 | 88.0°F (1965) | 26.1°F (1925) | 1.75 in (1900) |
| May 8 | 89.1°F (1963) | 28.9°F (1989) | 1.49 in (1995) |
| May 9 | 95.0°F (1934) | 26.1°F (1945) | 1.38 in (1918) |
| May 10 | 91.0°F (1979) | 27.0°F (1966) | 2.01 in (1996) |
| May 11 | 91.9°F (2011) | 30.0°F (1925) | 1.56 in (1966) |
| May 12 | 93.9°F (2022) | 27.0°F (1928) | 1.16 in (2002) |
| May 13 | 93.9°F (2022) | 30.9°F (2013) | 1.89 in (1978) |
| May 14 | 93.9°F (2022) | 28.9°F (1920) | 2.45 in (1945) |
| May 15 | 91.9°F (2013) | 30.9°F (1926) | 1.13 in (1941) |
| May 16 | 89.1°F (1962) | 32.0°F (2005) | 2.10 in (1974) |
| May 17 | 91.0°F (1934) | 28.0°F (1973) | 1.55 in (1986) |
| May 18 | 93.9°F (1934) | 34.0°F (1916) | 1.46 in (2004) |
| May 19 | 93.9°F (1934) | 30.0°F (1929) | 2.32 in (1987) |
| May 20 | 93.0°F (1934) | 32.0°F (1981) | 2.80 in (2018) |
| May 21 | 93.0°F (1934) | 30.9°F (1929) | 1.59 in (2001) |
| May 22 | 91.9°F (1925) | 34.0°F (1963) | 1.75 in (1920) |
| May 23 | 91.0°F (1975) | 28.9°F (1931) | 1.61 in (1966) |
| May 24 | 93.9°F (1975) | 34.0°F (1935) | 1.30 in (2020) |
| May 25 | 91.9°F (2010) | 27.0°F (1925) | 1.50 in (1984) |
| May 26 | 93.0°F (1967) | 28.9°F (1925) | 2.17 in (2008) |
| May 27 | 93.0°F (2018) | 32.0°F (1992) | 2.00 in (1903) |
| May 28 | 97.0°F (2018) | 34.0°F (1928) | 1.32 in (1899) |
| May 29 | 99.0°F (1934) | 32.0°F (1965) | 1.79 in (1980) |
| May 30 | 98.1°F (1934) | 33.1°F (1930) | 1.15 in (1917) |
| May 31 | 105.1°F (1934) | 36.0°F (1930) | 2.41 in (1941) |