| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 33.1 | 24.1 | 60 | -22 | 6.0 | 24.5 |
| February | 35.7 | 24.8 | 57 | -22 | 4.3 | 16.7 |
| March | 39.2 | 26.9 | 61 | -15 | 3.7 | 12.4 |
| April | 48.7 | 33.1 | 74 | 6 | 3.5 | 1.2 |
| May | 57.6 | 40.6 | 80 | 25 | 3.5 | 0.0 |
| June | 62.4 | 47.1 | 87 | 31 | 3.8 | 0.0 |
| July | 64.0 | 50.4 | 90 | 37 | 5.1 | 0.0 |
| August | 62.9 | 49.4 | 87 | 31 | 6.4 | 0.0 |
| September | 56.1 | 44.4 | 85 | 23 | 9.1 | 0.0 |
| October | 47.3 | 37.4 | 68 | 11 | 8.4 | 0.9 |
| November | 38.3 | 29.4 | 60 | -5 | 6.5 | 13.4 |
| December | 34.7 | 26.1 | 59 | -15 | 6.5 | 17.0 |
| Entire year | 48.4 | 36.2 | 90 | -22 | 66.9 | 86.1 |
|
More Juneau Weather Records
1890–2024
|
||
|---|---|---|
| Highest daily low | 70 °F | June 20, 1914 |
| Lowest daily high | -10 °F | February 1, 1917 |
| Greatest daily range (Difference of high and low) |
52 °F | September 11, 1895 |
| Greatest difference in daily high over two conscutive days |
31 °F | Jun 4–5, 1913 |
| Most daily precipitation | 4.9 inches | December 1, 2020 |
| Most monthly precipitation | 20.2 inches | January 1891 |
| Most yearly precipitation | 102.6 inches | 1948 |
| Most yearly days with precipitation | 277 | 1999 |
| Earliest snow in season | September 26 | 1908 |
| Latest snow in season | May 13 | 1965 |
| Most daily snow | 20.5 inches | April 2, 1963 |
| Most monthly snow | 86.3 inches | February 1965 |
| Most yearly snow | 212.1 inches | 1994 |
| Most snow in a winter | 194.3 inches | 1964–1965 |
| Greatest snow accumulation | 65.0 inches | January 21, 1952 |
| Earliest freeze | August 24 | 1969 |
| Earliest day ≥ 70 °F | April 17 | 2021 |
| Earliest day ≥ 80 °F | May 16 | 1915 |
| Latest freeze | June 13 | 1965 |
| Latest day ≥ 70 °F | September 20 | 1896 |
| Latest day ≥ 80 °F | September 11 | 1895 |
| Most days in a year < 0 °F | 25 | 1969 |
| Most days in a year < 32 °F | 169 | 1972 |
| Most days in a year ≥ 80 °F | 13 | 1915 |
| Most days in a year ≥ 90 °F | 1 | 1975 |
|
Juneau Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 51 days | Sep 1 – Oct 21, 1908 |
| Without precipitation | 25 days | Nov 2–26, 1896 |
| With snow | 17 days | Jan 18 – Feb 3, 2006 |
| High temperature at or below freezing |
37 days | Jan 4 – Feb 9, 1969 |
| High temperature ≥ 80 °F | 8 days | Jun 18–25, 2004 |