August weather in Merrill, WI
The average temperature in Merrill in August is 66.3°F (54.7°F–77.9°F). Average precipitation: 4.05 inches.
August is a summer month in Merrill, and is warmer than the annual average of 42.1°F. Daily temperatures swing about 23.2°F between overnight low and afternoon high. Expect about 12 days with precipitation. Daylight averages about 13h 54m. For travel, August is a comfortable month to visit.
Avg High
77.9°F
Avg Low
54.7°F
Precipitation
4.05 in
Daylight
13h 54m
August records in Merrill
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 97.0°F (2006) | 37.9°F (1976) | 1.81 in (1955) |
| August 2 | 97.0°F (1964) | 32.0°F (1976) | 3.35 in (2001) |
| August 3 | 96.1°F (1916) | 39.9°F (1978) | 1.99 in (2009) |
| August 4 | 98.1°F (1947) | 37.0°F (1951) | 2.07 in (1956) |
| August 5 | 97.0°F (1947) | 37.9°F (1957) | 3.03 in (1906) |
| August 6 | 95.0°F (1909) | 35.1°F (1976) | 1.28 in (1935) |
| August 7 | 96.1°F (1937) | 36.0°F (1975) | 2.20 in (1960) |
| August 8 | 93.9°F (1928) | 34.0°F (1923) | 1.81 in (1918) |
| August 9 | 93.0°F (1934) | 36.0°F (1923) | 1.75 in (1988) |
| August 10 | 95.0°F (1944) | 36.0°F (1982) | 1.96 in (1985) |
| August 11 | 93.9°F (1944) | 33.1°F (1982) | 1.71 in (1941) |
| August 12 | 96.1°F (1947) | 37.0°F (1982) | 1.85 in (1995) |
| August 13 | 96.1°F (1944) | 35.1°F (1923) | 2.25 in (1985) |
| August 14 | 96.1°F (1944) | 35.1°F (1933) | 1.55 in (1971) |
| August 15 | 100.9°F (1936) | 32.0°F (1976) | 1.90 in (2000) |
| August 16 | 93.9°F (1937) | 34.0°F (1976) | 2.46 in (1940) |
| August 17 | 98.1°F (1988) | 34.0°F (1981) | 1.00 in (1912) |
| August 18 | 96.1°F (1916) | 33.1°F (1977) | 0.88 in (1914) |
| August 19 | 95.0°F (1916) | 37.9°F (1929) | 3.12 in (1947) |
| August 20 | 96.1°F (1916) | 34.0°F (1950) | 1.64 in (1994) |
| August 21 | 93.9°F (1955) | 35.1°F (2004) | 2.27 in (1926) |
| August 22 | 93.0°F (1968) | 33.1°F (1950) | 2.16 in (2002) |
| August 23 | 97.0°F (1948) | 35.1°F (1940) | 1.56 in (1962) |
| August 24 | 97.0°F (1948) | 30.9°F (1977) | 3.74 in (1962) |
| August 25 | 97.0°F (1948) | 32.0°F (1977) | 1.95 in (1936) |
| August 26 | 97.0°F (1909) | 35.1°F (1915) | 2.08 in (2013) |
| August 27 | 97.0°F (1973) | 34.0°F (1915) | 1.56 in (1982) |
| August 28 | 93.0°F (1937) | 34.0°F (1986) | 2.05 in (1960) |
| August 29 | 93.9°F (1925) | 32.0°F (1976) | 0.75 in (1941) |
| August 30 | 96.1°F (1937) | 30.0°F (1915) | 3.10 in (1941) |
| August 31 | 93.9°F (2012) | 35.1°F (2009) | 2.49 in (1941) |