Juneau Dwtn Threshold Days by Year (USC00504094)
11 fixed thresholds counted per year at Juneau Dwtn (USC00504094): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Juneau Dwtn Thresholds
- Juneau Dwtn: days with a maximum temperature at or below 0 C (32 F) in 27 years, most in 1982 with 54.
- Juneau Dwtn: nights with a minimum temperature at or below 0 C (32 F) in 24 years, most in 1982 with 141.
- Juneau Dwtn: nights with a minimum temperature at or below -10 C (14 F) in 24 years, most in 1969 with 28.
- Juneau Dwtn: days with 10 mm (0.39 in) or more of precipitation in 22 years, most in 1987 with 103.
- 11 fixed thresholds have at least one qualifying day at Juneau Dwtn.
Days at or above 30 C (86 F)
5 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1969 | 1 | 1 |
| 1982 | 1 | 1 |
| 1991 | 1 | 1 |
| 1992 | 1 | 1 |
| 2012 | 1 | 1 |
| Year | First date | Last date |
|---|---|---|
| 1969 | 1969-06-15 | 1969-06-15 |
| 1982 | 1982-06-26 | 1982-06-26 |
| 1991 | 1991-06-21 | 1991-06-21 |
| 1992 | 1992-06-30 | 1992-06-30 |
| 2012 | 2012-06-24 | 2012-06-24 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 5 | 1 | 1969 | 1 |
| 0 C (32 F): Ice days (max | 27 | 54 | 1982 | 29 |
| 0 C (32 F): Frost days (min | 24 | 141 | 1982 | 112 |
| -10 C (14 F): Days with min | 24 | 28 | 1969 | 8 |
| -20 C (-4 F): Days with min | 3 | 3 | 1968 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 22 | 103 | 1987 | 74 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 22 | 26 | 1981 | 21 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 22 | 5 | 1968 | 3 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1988 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 20 | 14 | 1990 | 4 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 8 | 2 | 1980 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).