May weather in Granby, CO
The average temperature in Granby in May is 45.4°F (31.4°F–59.4°F). Average precipitation: 1.62 inches.
May is a spring month in Granby, and is warmer than the annual average of 37.4°F. Daily temperatures swing about 28°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 14h 13m. For travel, May is cool.
Avg High
59.4°F
Avg Low
31.4°F
Precipitation
1.62 in
Daylight
14h 13m
May records in Granby
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 72.0°F (1992) | 12.0°F (1967) | 0.95 in (2013) |
| May 2 | 70.0°F (2000) | -0.9°F (2013) | 0.60 in (2022) |
| May 3 | 70.0°F (1952) | 8.1°F (2013) | 0.51 in (2018) |
| May 4 | 73.0°F (2000) | 12.9°F (1973) | 0.45 in (2022) |
| May 5 | 75.9°F (2004) | 14.0°F (2001) | 0.78 in (1960) |
| May 6 | 75.0°F (2004) | 17.1°F (1982) | 1.17 in (1973) |
| May 7 | 73.9°F (2004) | 12.0°F (1984) | 1.43 in (1969) |
| May 8 | 73.9°F (2004) | 14.0°F (1984) | 0.47 in (1979) |
| May 9 | 73.0°F (2004) | 12.9°F (2002) | 0.96 in (1957) |
| May 10 | 71.1°F (2012) | 14.0°F (1990) | 0.68 in (1957) |
| May 11 | 72.0°F (2007) | 17.1°F (1979) | 0.30 in (2020) |
| May 12 | 73.0°F (1960) | 16.0°F (1999) | 0.76 in (2010) |
| May 13 | 73.9°F (1960) | 14.0°F (2000) | 0.85 in (2008) |
| May 14 | 73.0°F (1978) | 17.1°F (2014) | 0.44 in (1958) |
| May 15 | 75.0°F (1978) | 18.0°F (1970) | 0.51 in (1977) |
| May 16 | 73.0°F (1978) | 12.9°F (1991) | 0.78 in (1991) |
| May 17 | 75.9°F (2003) | 19.0°F (1955) | 0.55 in (1995) |
| May 18 | 73.0°F (1994) | 10.9°F (1990) | 0.30 in (1975) |
| May 19 | 75.9°F (2005) | 16.0°F (1990) | 0.97 in (1988) |
| May 20 | 81.0°F (2005) | 21.9°F (1960) | 0.37 in (2022) |
| May 21 | 81.0°F (2005) | 19.0°F (2001) | 0.62 in (1976) |
| May 22 | 80.1°F (2005) | 19.0°F (1974) | 0.83 in (1997) |
| May 23 | 79.0°F (2005) | 19.0°F (2002) | 0.59 in (2006) |
| May 24 | 75.9°F (2003) | 24.1°F (2002) | 0.40 in (2012) |
| May 25 | 75.9°F (2006) | 21.0°F (2010) | 1.38 in (2014) |
| May 26 | 75.0°F (1969) | 23.0°F (1950) | 0.63 in (1996) |
| May 27 | 78.1°F (2003) | 26.1°F (1989) | 0.75 in (1992) |
| May 28 | 82.9°F (2003) | 23.0°F (1954) | 0.45 in (1993) |
| May 29 | 84.0°F (2003) | 21.9°F (1955) | 0.79 in (1997) |
| May 30 | 86.0°F (2002) | 25.0°F (1975) | 0.44 in (2022) |
| May 31 | 81.0°F (2002) | 21.9°F (2011) | 0.82 in (2020) |