Mondy Threshold Days by Year (RSM00030802)
10 fixed thresholds counted per year at Mondy (RSM00030802): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Mondy Thresholds
- Mondy: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 1952 with 17.
- Mondy: days with 25 mm (0.98 in) or more of precipitation in 42 years, most in 1947 with 4.
- Mondy: days with a maximum temperature at or below 0 C (32 F) in 21 years, most in 1970 with 142.
- Mondy: days with a maximum temperature at or above 30 C (86 F) in 11 years, most in 2015 with 6.
- 10 fixed thresholds have at least one qualifying day at Mondy.
Days at or above 30 C (86 F)
11 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1969 | 4 | 4 |
| 1970 | 1 | 1.8 |
| 1977 | 3 | 1.8 |
| 1978 | 1 | 1.8 |
| 1979 | 2 | 1.8 |
| 1980 | 3 | 2 |
| 1988 | 1 | 2 |
| 2010 | 5 | 3.5 |
| 2011 | 2 | 3.5 |
| 2012 | 1 | 3.5 |
| 2015 | 6 | 3.5 |
| Year | First date | Last date |
|---|---|---|
| 1969 | 1969-06-18 | 1969-07-28 |
| 1970 | 1970-06-25 | 1970-06-25 |
| 1977 | 1977-06-21 | 1977-06-23 |
| 1978 | 1978-06-20 | 1978-06-20 |
| 1979 | 1979-06-09 | 1979-06-28 |
| 1980 | 1980-06-22 | 1980-07-12 |
| 1988 | 1988-08-07 | 1988-08-07 |
| 2010 | 2010-06-20 | 2010-08-24 |
| 2011 | 2011-07-14 | 2011-07-16 |
| 2012 | 2012-08-03 | 2012-08-03 |
| 2015 | 2015-06-20 | 2015-08-08 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 11 | 6 | 2015 | 6 |
| 90 F (32.2 C): Days | 3 | 3 | 2010 | 1 |
| 0 C (32 F): Ice days (max | 21 | 142 | 1970 | 69 |
| 0 C (32 F): Frost days (min | 1 | 0 | n/a | 86 |
| -10 C (14 F): Days with min | 1 | 0 | n/a | 59 |
| -20 C (-4 F): Days with min | 1 | 0 | n/a | 40 |
| -30 C (-22 F): Days with min | 1 | 0 | n/a | 6 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 51 | 17 | 1952 | 6 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 42 | 4 | 1947 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 2 | 1 | 1980 | 1 |
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).