| Month | Average (°F) | Record (°F) | Average (inches) | ||
|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | |
| January | 47.8 | 36.7 | 70 | -10 | 4.9 |
| February | 50.5 | 36.7 | 71 | -5 | 3.3 |
| March | 54.7 | 39.4 | 79 | 10 | 3.8 |
| April | 59.8 | 43.3 | 88 | 23 | 2.9 |
| May | 66.5 | 48.9 | 95 | 22 | 1.8 |
| June | 71.0 | 53.5 | 109 | 33 | 1.4 |
| July | 77.5 | 57.8 | 105 | 34 | 0.6 |
| August | 77.6 | 57.7 | 99 | 34 | 0.9 |
| September | 71.9 | 53.2 | 96 | 26 | 1.5 |
| October | 61.0 | 46.2 | 87 | 19 | 3.5 |
| November | 52.3 | 39.9 | 77 | -1 | 5.7 |
| December | 46.9 | 36.1 | 69 | 0 | 5.2 |
| Entire year | 61.4 | 45.9 | 109 | -10 | 35.8 |
|
More Renton Weather Records
1912–2024
|
||
|---|---|---|
| Highest daily low | 74 °F | July 14, 1996 |
| Lowest daily high | 18 °F | February 2, 1989 |
| Greatest daily range (Difference of high and low) |
58 °F | May 3, 1923 |
| Greatest difference in daily high over two conscutive days |
31 °F | Aug 30–31, 1944 |
| Most daily precipitation | 6.0 inches | December 27, 1949 |
| Most monthly precipitation | 30.7 inches | December 1949 |
| Most yearly precipitation | 61.8 inches | 1998 |
| Most yearly days with precipitation | 209 | 1998 |
| Earliest freeze | September 13 | 1970 |
| Earliest day ≥ 80 °F | April 1 | 1987 |
| Earliest day ≥ 90 °F | May 12 | 1926 |
| Latest freeze | May 31 | 1938 |
| Latest day ≥ 80 °F | October 18 | 2009 |
| Latest day ≥ 90 °F | September 27 | 1967 |
| Most days in a year < 0 °F | 3 | 1950 |
| Most days in a year < 32 °F | 103 | 1916 |
| Most days in a year ≥ 80 °F | 73 | 1967 |
| Most days in a year ≥ 90 °F | 15 | 1958 |
| Most days in a year ≥ 100 °F | 3 | 2021 |
|
Renton Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 45 days | Jan 15 – Feb 28, 1946 |
| Without precipitation | 71 days | Jun 28 – Sep 6, 1914 |
| High temperature at or below freezing |
9 days | Jan 22–30, 1969 |
| High temperature ≥ 80 °F | 21 days | Jul 31 – Aug 20, 1977 |
| High temperature ≥ 90 °F | 6 days | Jul 26–31, 2022 |
| High temperature ≥ 100 °F | 3 days | Jun 26–28, 2021 |