Charleroi Lock 4 Threshold Days by Year (USC00361377)
16 fixed thresholds counted per year at Charleroi Lock 4 (USC00361377): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Charleroi Lock 4 Thresholds
- Charleroi Lock 4: days with 10 mm (0.39 in) or more of precipitation in 87 years, most in 1956 with 49.
- Charleroi Lock 4: days with 25 mm (0.98 in) or more of precipitation in 87 years, most in 1999 with 12.
- Charleroi Lock 4: days with 50 mm (1.97 in) or more of precipitation in 40 years, most in 1935 with 2.
- Charleroi Lock 4: days with 10 cm (3.9 in) or more of snowfall in 30 years, most in 1960 with 4.
- 16 fixed thresholds have at least one qualifying day at Charleroi Lock 4.
Days at or above 30 C (86 F)
14 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 2011 | 40 | 40.1 |
| 2013 | 21 | 40.1 |
| 2014 | 26 | 40.1 |
| 2015 | 38 | 40.1 |
| 2016 | 47 | 40.1 |
| 2017 | 52 | 40.1 |
| 2019 | 57 | 40.1 |
| 2020 | 62 | 54 |
| 2021 | 53 | 54 |
| 2022 | 58 | 54 |
| 2023 | 41 | 54 |
| 2024 | 65 | 54 |
| 2025 | 62 | 54 |
| 2026 | 37 | 54 |
| Year | First date | Last date |
|---|---|---|
| 2011 | 2011-05-30 | 2011-09-04 |
| 2013 | 2013-05-30 | 2013-09-11 |
| 2014 | 2014-05-09 | 2014-09-11 |
| 2015 | 2015-05-09 | 2015-09-19 |
| 2016 | 2016-05-25 | 2016-09-24 |
| 2017 | 2017-04-11 | 2017-09-28 |
| 2019 | 2019-05-20 | 2019-10-04 |
| 2020 | 2020-05-26 | 2020-09-11 |
| 2021 | 2021-05-21 | 2021-09-20 |
| 2022 | 2022-04-24 | 2022-09-03 |
| 2023 | 2023-04-06 | 2023-09-07 |
| 2024 | 2024-05-03 | 2024-09-21 |
| 2025 | 2025-04-19 | 2025-09-22 |
| 2026 | 2026-04-16 | 2026-10-02 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 14 | 65 | 2024 | 37 |
| 35 C (95 F): Days | 10 | 8 | 2020 | 6 |
| 90 F (32.2 C): Days | 14 | 34 | 2020 | 20 |
| 0 C (32 F): Ice days (max | 14 | 33 | 2014 | 28 |
| 0 C (32 F): Frost days (min | 15 | 121 | 2014 | 68 |
| -10 C (14 F): Days with min | 15 | 33 | 2014 | 21 |
| -20 C (-4 F): Days with min | 5 | 4 | 2015 | 2 |
| 20 C (68 F): Tropical nights (min | 15 | 38 | 2025 | 37 |
| 25 C (77 F): Days with min | 1 | 1 | 2016 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 87 | 49 | 1956 | 32 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 87 | 12 | 1999 | 10 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 40 | 2 | 1935 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 1988 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 30 | 4 | 1960 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 5 | 2 | 1994 | 2 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 2 | 1 | 1950 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2011.
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 (2026-10-17).