May weather in Palmer, IA
The average temperature in Palmer in May is 59.7°F (48.5°F–70.9°F). Average precipitation: 4.57 inches.
May is a spring month in Palmer, and is warmer than the annual average of 46.9°F. Daily temperatures swing about 22.4°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 14h 26m. For travel, May is a comfortable month to visit.
Avg High
70.9°F
Avg Low
48.5°F
Precipitation
4.57 in
Daylight
14h 26m
May records in Palmer
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 91.0°F (1992) | 21.9°F (1909) | 1.90 in (1951) |
| May 2 | 91.9°F (1987) | 23.0°F (1908) | 1.51 in (2013) |
| May 3 | 91.9°F (1918) | 24.1°F (1909) | 1.77 in (1913) |
| May 4 | 91.9°F (1918) | 21.9°F (1907) | 1.28 in (2018) |
| May 5 | 93.0°F (1909) | 26.1°F (1944) | 1.62 in (1991) |
| May 6 | 98.1°F (1934) | 25.0°F (1925) | 1.95 in (2007) |
| May 7 | 91.9°F (1934) | 27.0°F (1931) | 1.25 in (1927) |
| May 8 | 99.0°F (1934) | 28.9°F (1923) | 1.45 in (1950) |
| May 9 | 91.0°F (1928) | 26.1°F (1945) | 1.55 in (2005) |
| May 10 | 91.0°F (1985) | 28.0°F (1909) | 2.78 in (1998) |
| May 11 | 98.1°F (2011) | 25.0°F (1946) | 1.84 in (1967) |
| May 12 | 91.0°F (2022) | 27.0°F (1946) | 1.00 in (2005) |
| May 13 | 96.1°F (2022) | 26.1°F (1997) | 2.21 in (2023) |
| May 14 | 93.9°F (1987) | 30.0°F (1921) | 2.10 in (1916) |
| May 15 | 102.0°F (2013) | 30.9°F (1997) | 2.56 in (1943) |
| May 16 | 95.0°F (2001) | 28.9°F (1929) | 1.78 in (1998) |
| May 17 | 97.0°F (1934) | 30.0°F (1925) | 2.24 in (2017) |
| May 18 | 100.0°F (1934) | 33.1°F (1916) | 2.85 in (1944) |
| May 19 | 100.0°F (1934) | 30.9°F (1929) | 2.10 in (1944) |
| May 20 | 98.1°F (1934) | 28.9°F (1907) | 1.40 in (1908) |
| May 21 | 96.1°F (1975) | 27.0°F (1931) | 3.41 in (2024) |
| May 22 | 99.0°F (1925) | 28.0°F (1963) | 1.62 in (1936) |
| May 23 | 91.9°F (1972) | 35.1°F (1958) | 4.00 in (1946) |
| May 24 | 100.0°F (1939) | 30.9°F (1924) | 1.68 in (1932) |
| May 25 | 100.0°F (1967) | 28.9°F (1925) | 3.16 in (1904) |
| May 26 | 99.0°F (1967) | 33.1°F (1905) | 2.41 in (1932) |
| May 27 | 96.1°F (2018) | 30.9°F (1907) | 2.26 in (1912) |
| May 28 | 102.0°F (2018) | 30.9°F (1947) | 1.64 in (1973) |
| May 29 | 104.0°F (1934) | 28.9°F (1947) | 2.21 in (1959) |
| May 30 | 106.0°F (1934) | 35.1°F (1924) | 3.25 in (2008) |
| May 31 | 107.1°F (1934) | 37.0°F (1972) | 1.98 in (1954) |