September weather in Holyoke, CO
The average temperature in Holyoke in September is 62.6°F (46.6°F–78.6°F). Average precipitation: 1.40 inches. Average snowfall is 0.2 inches.
September is a fall month in Holyoke, and is warmer than the annual average of 48.9°F. Daily temperatures swing about 32°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 15m. For travel, September is a comfortable month to visit.
Avg High
78.6°F
Avg Low
46.6°F
Precipitation
1.40 in
Snow
0.2 in
September records in Holyoke
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 100.9°F (1899) | 39.0°F (1956) | 1.51 in (1966) |
| September 2 | 102.9°F (2023) | 36.0°F (1952) | 3.00 in (1919) |
| September 3 | 102.0°F (1960) | 35.1°F (1974) | 1.33 in (1951) |
| September 4 | 105.1°F (1899) | 36.0°F (2008) | 1.42 in (1929) |
| September 5 | 100.0°F (1899) | 36.0°F (1961) | 0.82 in (1956) |
| September 6 | 104.0°F (1959) | 35.1°F (2017) | 0.76 in (1951) |
| September 7 | 102.9°F (1959) | 33.1°F (2010) | 0.57 in (1951) |
| September 8 | 102.0°F (2022) | 36.0°F (2010) | 0.95 in (1935) |
| September 9 | 102.9°F (2022) | 30.0°F (2020) | 1.32 in (1946) |
| September 10 | 97.0°F (1956) | 30.9°F (2020) | 0.75 in (1912) |
| September 11 | 100.9°F (2021) | 35.1°F (1957) | 0.90 in (1901) |
| September 12 | 100.0°F (1939) | 23.0°F (1902) | 0.96 in (1933) |
| September 13 | 99.0°F (1955) | 30.0°F (1949) | 0.81 in (1977) |
| September 14 | 97.0°F (1936) | 28.0°F (1903) | 1.50 in (1991) |
| September 15 | 99.0°F (1955) | 26.1°F (1903) | 0.69 in (1970) |
| September 16 | 97.0°F (1955) | 25.0°F (1903) | 0.80 in (1958) |
| September 17 | 98.1°F (1955) | 25.0°F (1903) | 0.57 in (2025) |
| September 18 | 99.0°F (1948) | 28.9°F (1903) | 2.45 in (2001) |
| September 19 | 95.0°F (1908) | 28.0°F (1971) | 0.98 in (1965) |
| September 20 | 99.0°F (1956) | 26.1°F (1983) | 1.03 in (2000) |
| September 21 | 96.1°F (2022) | 19.9°F (1983) | 1.04 in (1963) |
| September 22 | 95.0°F (1939) | 28.9°F (1995) | 3.63 in (1902) |
| September 23 | 91.9°F (1899) | 30.0°F (1983) | 1.18 in (2009) |
| September 24 | 93.0°F (1908) | 30.0°F (1985) | 1.35 in (2025) |
| September 25 | 93.9°F (1936) | 25.0°F (1928) | 1.48 in (1927) |
| September 26 | 91.9°F (1901) | 16.0°F (2000) | 1.70 in (1945) |
| September 27 | 96.1°F (1953) | 19.9°F (1908) | 1.40 in (1945) |
| September 28 | 96.1°F (1901) | 21.9°F (1902) | 1.49 in (1973) |
| September 29 | 93.9°F (1957) | 24.1°F (1985) | 0.57 in (1941) |
| September 30 | 93.9°F (1899) | 18.0°F (1985) | 0.82 in (2014) |