September weather in Grover, CO
The average temperature in Grover in September is 59.8°F (43.0°F–76.5°F). Average precipitation: 1.87 inches. Average snowfall is 0.4 inches.
September is a fall month in Grover, and is warmer than the annual average of 46.9°F. Daily temperatures swing about 33.5°F between overnight low and afternoon high. Expect about 7 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
76.5°F
Avg Low
43.0°F
Precipitation
1.87 in
Snow
0.4 in
September records in Grover
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (1985) | 36.0°F (1956) | 0.80 in (1972) |
| September 2 | 93.9°F (1958) | 34.0°F (1952) | 2.52 in (1966) |
| September 3 | 95.0°F (1960) | 30.0°F (1974) | 0.41 in (1972) |
| September 4 | 96.1°F (1960) | 34.0°F (1968) | 0.63 in (1999) |
| September 5 | 97.0°F (1976) | 34.0°F (1961) | 0.78 in (1991) |
| September 6 | 98.1°F (1977) | 33.1°F (1956) | 0.74 in (1951) |
| September 7 | 96.1°F (1959) | 34.0°F (1956) | 0.55 in (1951) |
| September 8 | 96.1°F (1959) | 33.1°F (1962) | 1.01 in (1989) |
| September 9 | 93.9°F (1979) | 21.9°F (1962) | 0.56 in (2002) |
| September 10 | 93.0°F (1974) | 28.0°F (1962) | 0.92 in (1995) |
| September 11 | 91.9°F (1956) | 33.1°F (1957) | 2.05 in (1985) |
| September 12 | 91.9°F (1958) | 30.9°F (1974) | 0.52 in (1950) |
| September 13 | 91.9°F (1990) | 28.0°F (1949) | 0.75 in (1993) |
| September 14 | 91.9°F (1955) | 24.1°F (1993) | 0.74 in (2004) |
| September 15 | 90.0°F (2000) | 27.0°F (1961) | 1.35 in (1950) |
| September 16 | 93.0°F (2000) | 27.0°F (1965) | 1.94 in (1950) |
| September 17 | 93.0°F (2000) | 26.1°F (1965) | 1.03 in (2001) |
| September 18 | 90.0°F (1981) | 28.0°F (1971) | 0.53 in (1993) |
| September 19 | 90.0°F (1980) | 25.0°F (1971) | 0.55 in (1995) |
| September 20 | 95.0°F (1956) | 18.0°F (1983) | 0.83 in (1955) |
| September 21 | 87.1°F (1991) | 15.1°F (1983) | 0.47 in (1998) |
| September 22 | 91.0°F (1958) | 23.0°F (1995) | 0.67 in (1961) |
| September 23 | 89.1°F (1958) | 28.0°F (1985) | 0.47 in (1961) |
| September 24 | 89.1°F (1966) | 26.1°F (1985) | 0.99 in (1959) |
| September 25 | 88.0°F (1949) | 15.1°F (1984) | 1.34 in (1955) |
| September 26 | 88.0°F (2001) | 25.0°F (1985) | 0.22 in (1966) |
| September 27 | 90.0°F (1952) | 21.9°F (1951) | 0.30 in (1976) |
| September 28 | 89.1°F (1994) | 19.9°F (1985) | 1.02 in (1973) |
| September 29 | 88.0°F (1994) | 19.9°F (1985) | 0.50 in (1965) |
| September 30 | 89.1°F (1963) | 15.1°F (1985) | 0.24 in (1975) |