May weather in Vienna, IL
The average temperature in Vienna in May is 66.4°F (55.6°F–77.2°F). Average precipitation: 5.19 inches.
May is a spring month in Vienna, and is warmer than the annual average of 57.2°F. Daily temperatures swing about 21.6°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 14h 1m. For travel, May is a wet month.
Avg High
77.2°F
Avg Low
55.6°F
Precipitation
5.19 in
Daylight
14h 1m
May records in Vienna
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 87.1°F (2012) | 34.0°F (1971) | 1.70 in (1985) |
| May 2 | 90.0°F (2012) | 35.1°F (1978) | 1.63 in (2019) |
| May 3 | 90.0°F (2012) | 33.1°F (1970) | 2.66 in (1983) |
| May 4 | 88.0°F (2012) | 28.9°F (1976) | 0.98 in (1988) |
| May 5 | 86.0°F (2014) | 35.1°F (2011) | 3.64 in (2003) |
| May 6 | 87.1°F (1993) | 37.0°F (1968) | 1.27 in (1999) |
| May 7 | 88.0°F (1993) | 36.0°F (1974) | 3.00 in (2003) |
| May 8 | 89.1°F (1986) | 37.9°F (1976) | 1.74 in (2002) |
| May 9 | 89.1°F (1986) | 30.9°F (1976) | 0.80 in (1989) |
| May 10 | 86.0°F (1979) | 37.9°F (1977) | 5.35 in (1970) |
| May 11 | 88.0°F (2005) | 36.0°F (1990) | 3.29 in (2003) |
| May 12 | 89.1°F (2005) | 36.0°F (1989) | 1.21 in (2016) |
| May 13 | 89.1°F (1998) | 35.1°F (2013) | 3.42 in (2002) |
| May 14 | 90.0°F (1998) | 36.0°F (2021) | 3.12 in (2024) |
| May 15 | 90.0°F (1998) | 34.0°F (1973) | 2.25 in (1986) |
| May 16 | 91.0°F (2001) | 33.1°F (1997) | 3.28 in (1986) |
| May 17 | 91.0°F (2001) | 39.0°F (2014) | 1.96 in (2002) |
| May 18 | 90.0°F (2012) | 36.0°F (1973) | 2.61 in (1995) |
| May 19 | 91.0°F (1998) | 35.1°F (1976) | 0.80 in (1981) |
| May 20 | 91.0°F (1987) | 42.1°F (2002) | 0.65 in (2003) |
| May 21 | 91.0°F (1987) | 39.0°F (1968) | 1.07 in (2001) |
| May 22 | 90.0°F (1987) | 39.9°F (2002) | 2.80 in (1977) |
| May 23 | 89.1°F (1996) | 43.0°F (1990) | 1.67 in (2000) |
| May 24 | 93.0°F (2012) | 42.1°F (2003) | 0.94 in (2003) |
| May 25 | 93.0°F (2012) | 43.0°F (1979) | 0.79 in (1990) |
| May 26 | 91.9°F (1978) | 39.0°F (1979) | 1.57 in (2004) |
| May 27 | 91.0°F (2006) | 41.0°F (1988) | 5.52 in (1973) |
| May 28 | 93.0°F (2006) | 41.0°F (1994) | 1.04 in (1990) |
| May 29 | 93.9°F (2012) | 43.0°F (1971) | 0.47 in (1980) |
| May 30 | 91.9°F (2011) | 39.0°F (1984) | 1.71 in (2025) |
| May 31 | 93.0°F (2002) | 39.9°F (1984) | 1.55 in (1981) |