September weather in Lamar, CO
The average temperature in Lamar in September is 67.5°F (51.5°F–83.5°F). Average precipitation: 1.19 inches.
September is a fall month in Lamar, and is warmer than the annual average of 53.1°F. Daily temperatures swing about 32°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 12h 14m. For travel, September is a comfortable month to visit.
Avg High
83.5°F
Avg Low
51.5°F
Precipitation
1.19 in
Daylight
12h 14m
September records in Lamar
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 104.0°F (1896) | 45.0°F (1908) | 0.69 in (2022) |
| September 2 | 104.0°F (2011) | 41.0°F (1952) | 0.75 in (1920) |
| September 3 | 105.1°F (2019) | 37.0°F (1974) | 2.15 in (1906) |
| September 4 | 104.0°F (1899) | 39.9°F (1988) | 1.96 in (1951) |
| September 5 | 104.0°F (1899) | 39.0°F (1988) | 0.70 in (2004) |
| September 6 | 106.0°F (1899) | 37.9°F (1898) | 0.80 in (1948) |
| September 7 | 104.0°F (2020) | 32.0°F (1898) | 0.71 in (2016) |
| September 8 | 102.9°F (1977) | 37.0°F (1898) | 1.35 in (1993) |
| September 9 | 100.9°F (1931) | 34.0°F (1898) | 1.17 in (1969) |
| September 10 | 102.9°F (1936) | 32.0°F (1898) | 1.80 in (1894) |
| September 11 | 102.0°F (2021) | 34.0°F (1898) | 1.08 in (1912) |
| September 12 | 102.0°F (2021) | 30.9°F (1898) | 1.05 in (1982) |
| September 13 | 102.0°F (1895) | 32.0°F (1945) | 1.18 in (1923) |
| September 14 | 100.0°F (2004) | 30.9°F (1945) | 1.25 in (1925) |
| September 15 | 100.0°F (1896) | 32.0°F (1947) | 1.05 in (1917) |
| September 16 | 102.0°F (1895) | 33.1°F (1903) | 1.37 in (1969) |
| September 17 | 104.0°F (1895) | 28.0°F (1903) | 0.98 in (1971) |
| September 18 | 102.9°F (1895) | 35.1°F (1971) | 0.64 in (2024) |
| September 19 | 102.0°F (1935) | 32.0°F (1971) | 1.20 in (1972) |
| September 20 | 100.9°F (1926) | 30.0°F (1942) | 0.70 in (1965) |
| September 21 | 102.9°F (1926) | 28.0°F (1983) | 1.57 in (1997) |
| September 22 | 100.0°F (1935) | 30.9°F (1924) | 2.65 in (1941) |
| September 23 | 99.0°F (1926) | 28.9°F (1946) | 0.85 in (1988) |
| September 24 | 100.0°F (1924) | 33.1°F (1991) | 1.85 in (2017) |
| September 25 | 99.0°F (1924) | 28.9°F (1961) | 2.42 in (2004) |
| September 26 | 98.1°F (2020) | 24.1°F (1942) | 0.70 in (1927) |
| September 27 | 102.0°F (1935) | 30.0°F (1908) | 0.99 in (1976) |
| September 28 | 100.0°F (1921) | 27.0°F (1895) | 1.35 in (1935) |
| September 29 | 97.0°F (1933) | 27.0°F (1984) | 1.22 in (1941) |
| September 30 | 98.1°F (1899) | 23.0°F (1985) | 0.86 in (1982) |