March weather in Granby, CO
The average temperature in Granby in March is 26.6°F (13.3°F–39.8°F). Average precipitation: 0.69 inches.
March is a spring month in Granby, and is cooler than the annual average of 37.4°F. Daily temperatures swing about 26.5°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 11h 44m. For travel, March is cold.
Avg High
39.8°F
Avg Low
13.3°F
Precipitation
0.69 in
Daylight
11h 44m
March records in Granby
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| March 1 | 52.0°F (2008) | -18.0°F (1951) | 0.18 in (1954) |
| March 2 | 51.1°F (2009) | -25.1°F (2002) | 0.27 in (1977) |
| March 3 | 53.1°F (2025) | -29.9°F (1965) | 0.69 in (1964) |
| March 4 | 50.0°F (1987) | -20.0°F (2007) | 0.41 in (2024) |
| March 5 | 53.1°F (1950) | -25.1°F (1984) | 0.44 in (1983) |
| March 6 | 55.0°F (1987) | -22.0°F (1976) | 0.48 in (1990) |
| March 7 | 53.1°F (1987) | -22.0°F (1971) | 0.23 in (1967) |
| March 8 | 48.9°F (1989) | -18.0°F (2022) | 0.30 in (2002) |
| March 9 | 54.0°F (1953) | -18.0°F (1964) | 0.15 in (1987) |
| March 10 | 55.0°F (1989) | -18.9°F (1969) | 0.29 in (1988) |
| March 11 | 53.1°F (1989) | -27.9°F (2022) | 0.20 in (1951) |
| March 12 | 50.0°F (1972) | -20.0°F (1956) | 0.20 in (1991) |
| March 13 | 53.1°F (1949) | -27.9°F (1962) | 0.33 in (2019) |
| March 14 | 51.1°F (2003) | -29.0°F (1962) | 0.41 in (2024) |
| March 15 | 54.0°F (2015) | -20.0°F (1952) | 0.69 in (1983) |
| March 16 | 57.0°F (2015) | -17.0°F (1962) | 0.51 in (1990) |
| March 17 | 60.1°F (2012) | -15.0°F (1980) | 0.20 in (2003) |
| March 18 | 59.0°F (2012) | -15.0°F (1980) | 0.44 in (2011) |
| March 19 | 57.0°F (2004) | -20.0°F (1965) | 1.40 in (2003) |
| March 20 | 59.0°F (2004) | -20.0°F (2010) | 0.19 in (2020) |
| March 21 | 66.9°F (2026) | -16.1°F (1964) | 0.22 in (2021) |
| March 22 | 66.0°F (2026) | -18.0°F (1952) | 0.25 in (1954) |
| March 23 | 61.0°F (2004) | -15.0°F (1966) | 0.67 in (2023) |
| March 24 | 64.9°F (2026) | -9.9°F (1966) | 0.39 in (2007) |
| March 25 | 62.1°F (2012) | -17.0°F (1996) | 0.30 in (1994) |
| March 26 | 61.0°F (2004) | -20.9°F (1955) | 0.28 in (1952) |
| March 27 | 57.9°F (2025) | -18.0°F (1955) | 0.24 in (1999) |
| March 28 | 62.1°F (2026) | -25.1°F (1975) | 0.35 in (1949) |
| March 29 | 61.0°F (2026) | -25.1°F (1975) | 0.36 in (1989) |
| March 30 | 60.1°F (2026) | -9.9°F (1994) | 0.27 in (1953) |
| March 31 | 62.1°F (2004) | 1.0°F (1954) | 0.35 in (1952) |