May weather in Lima, MT
The average temperature in Lima in May is 48.7°F (35.3°F–62.2°F). Average precipitation: 1.66 inches. Average snowfall is 4.7 inches.
May is a spring month in Lima, and is warmer than the annual average of 41.5°F. Daily temperatures swing about 26.9°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 14h 37m. For travel, May is cool.
Avg High
62.2°F
Avg Low
35.3°F
Precipitation
1.66 in
Snow
4.7 in
May records in Lima
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 79.0°F (2021) | 10.0°F (1967) | 0.54 in (1978) |
| May 2 | 81.0°F (1947) | 12.9°F (1948) | 0.86 in (1991) |
| May 3 | 82.0°F (1947) | 12.0°F (1942) | 0.73 in (1933) |
| May 4 | 81.0°F (1947) | 16.0°F (2010) | 1.12 in (1975) |
| May 5 | 82.0°F (1966) | 12.0°F (1982) | 1.05 in (2009) |
| May 6 | 88.0°F (1966) | 12.9°F (1968) | 0.60 in (1977) |
| May 7 | 82.9°F (1947) | 10.0°F (1943) | 0.94 in (1986) |
| May 8 | 80.1°F (1947) | 19.0°F (1968) | 1.00 in (1948) |
| May 9 | 81.0°F (1947) | 15.1°F (1916) | 0.59 in (1980) |
| May 10 | 79.0°F (1900) | 19.0°F (1916) | 0.76 in (1991) |
| May 11 | 79.0°F (1960) | 9.0°F (1942) | 1.02 in (1981) |
| May 12 | 79.0°F (1931) | 12.0°F (1943) | 0.82 in (1957) |
| May 13 | 82.9°F (1931) | 7.0°F (1943) | 1.41 in (2025) |
| May 14 | 82.0°F (1931) | 14.0°F (1995) | 0.44 in (1957) |
| May 15 | 82.9°F (1917) | 17.1°F (1947) | 0.58 in (1977) |
| May 16 | 84.0°F (1931) | 15.1°F (1942) | 0.83 in (1987) |
| May 17 | 82.0°F (1901) | 10.9°F (1943) | 0.90 in (1949) |
| May 18 | 82.0°F (1954) | 12.9°F (1943) | 1.09 in (1944) |
| May 19 | 86.0°F (1954) | 14.0°F (2003) | 0.69 in (1948) |
| May 20 | 82.0°F (1954) | 19.0°F (1947) | 1.06 in (1974) |
| May 21 | 79.0°F (1958) | 18.0°F (2001) | 0.84 in (2007) |
| May 22 | 81.0°F (1967) | 19.0°F (1943) | 1.40 in (1946) |
| May 23 | 86.0°F (1931) | 15.1°F (1944) | 0.60 in (2004) |
| May 24 | 88.0°F (1931) | 19.0°F (1943) | 1.48 in (1916) |
| May 25 | 81.0°F (1934) | 15.1°F (1953) | 1.06 in (1980) |
| May 26 | 90.0°F (1931) | 19.9°F (1943) | 0.86 in (1931) |
| May 27 | 87.1°F (1948) | 21.9°F (1973) | 0.54 in (2023) |
| May 28 | 87.1°F (1919) | 16.0°F (1942) | 1.37 in (1946) |
| May 29 | 86.0°F (2003) | 12.0°F (1947) | 0.61 in (1979) |
| May 30 | 86.0°F (2003) | 21.0°F (1942) | 0.72 in (1988) |
| May 31 | 84.9°F (1931) | 18.0°F (1942) | 1.40 in (1923) |