May weather in Ketchikan, AK
The average temperature in Ketchikan in May is 52.2°F (45.1°F–59.3°F). Average precipitation: 7.19 inches.
May is a spring month in Ketchikan, and is warmer than the annual average of 47.3°F. Daily temperatures swing about 14.2°F between overnight low and afternoon high. Expect about 16 days with precipitation. Daylight averages about 15h 56m. For travel, May is a wet month.
Avg High
59.3°F
Avg Low
45.1°F
Precipitation
7.19 in
Daylight
15h 56m
May records in Ketchikan
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 70.0°F (2009) | 28.0°F (1954) | 2.25 in (1980) |
| May 2 | 75.9°F (1997) | 30.9°F (1956) | 2.15 in (1966) |
| May 3 | 75.0°F (1996) | 30.0°F (1987) | 2.03 in (1974) |
| May 4 | 73.9°F (1997) | 30.9°F (1952) | 2.60 in (1974) |
| May 5 | 69.1°F (2003) | 30.9°F (1965) | 2.22 in (1990) |
| May 6 | 73.9°F (1981) | 32.0°F (1969) | 1.99 in (2006) |
| May 7 | 73.9°F (1981) | 32.0°F (2002) | 1.60 in (2012) |
| May 8 | 73.0°F (2015) | 30.9°F (1952) | 1.76 in (1973) |
| May 9 | 78.1°F (2005) | 30.9°F (1952) | 1.58 in (1950) |
| May 10 | 78.1°F (1996) | 32.0°F (1985) | 1.38 in (1979) |
| May 11 | 80.1°F (1996) | 28.9°F (1965) | 2.84 in (2002) |
| May 12 | 80.1°F (1997) | 32.0°F (1964) | 1.66 in (1972) |
| May 13 | 80.1°F (1993) | 32.0°F (1964) | 2.79 in (1958) |
| May 14 | 79.0°F (2016) | 32.0°F (1982) | 4.00 in (1956) |
| May 15 | 79.0°F (1973) | 30.9°F (1985) | 3.20 in (1956) |
| May 16 | 73.9°F (2014) | 33.1°F (2009) | 4.06 in (1956) |
| May 17 | 78.1°F (1996) | 34.0°F (1971) | 2.21 in (2009) |
| May 18 | 78.1°F (1996) | 33.1°F (1972) | 0.94 in (1966) |
| May 19 | 81.0°F (1997) | 34.0°F (1976) | 1.41 in (1966) |
| May 20 | 78.1°F (2016) | 33.1°F (1954) | 1.60 in (1984) |
| May 21 | 84.0°F (1963) | 32.0°F (1954) | 1.54 in (2000) |
| May 22 | 82.9°F (1963) | 35.1°F (1955) | 2.70 in (2014) |
| May 23 | 75.9°F (1969) | 32.0°F (1964) | 7.05 in (1999) |
| May 24 | 81.0°F (1969) | 34.0°F (1972) | 1.05 in (1951) |
| May 25 | 81.0°F (1969) | 37.0°F (1952) | 1.37 in (2003) |
| May 26 | 78.1°F (1993) | 37.0°F (1966) | 1.80 in (1979) |
| May 27 | 82.9°F (1958) | 36.0°F (1966) | 2.08 in (1994) |
| May 28 | 82.0°F (1996) | 35.1°F (1976) | 1.56 in (2002) |
| May 29 | 86.0°F (1996) | 36.0°F (1951) | 1.21 in (2002) |
| May 30 | 79.0°F (1983) | 37.0°F (1971) | 0.99 in (2006) |
| May 31 | 79.0°F (2011) | 37.9°F (1952) | 1.71 in (1959) |