Solar terms
Korean agriculture plans around the 24 solar terms, not around calendar months. This reads KMA's crop-disaster record the same way — one 절기 at a time, across years, at a station you choose.
Baengno — White Dew is the current solar term.
Baengno — White Dew · Low-temperature injury — the daily air minimum, the daily mean, and the grass-surface minimum.
Highland plateau at ~773 m — the widest air-to-grass spread of any station here.
Air versus grass
A published forecast measures air inside a screened shelter, more than a metre up. Frost forms on the surface the crop occupies. KMA measures both, and they are not the same number.
Average gap
1.0°
Widest gap
2.0°
in 2022
Across these years the grass surface ran colder than the air — in 8 of 9 of them.
Computed over the 9 years with both measurements. Both figures are whole-day minima at the same station on the same day, so the difference is a like-for-like comparison.
In this range, the air minimum went below freezing whenever the grass surface did.
Air minimum (TA_MIN) · Grass-surface minimum (TG_MIN)
Scroll to see all years
| Year | Observed | Air minimum°C | Air mean°C | Grass-surface minimum°C | Gap |
|---|---|---|---|---|---|
| 2017 | 2017-09-07 | 12.3 | 16.7 | 10.5 | 1.8 |
| 2018 | 2018-09-08 | 8.1 | 13.0 | No observation returned for this year | No observation returned for this year |
| 2019 | 2019-09-08 | 18.2 | 20.0 | 17.1 | 1.1 |
| 2020 | 2020-09-07 | 12.1 | 17.1 | 11.8 | 0.3 |
| 2021 | 2021-09-07 | 13.6 | 16.4 | 13.5 | 0.1 |
| 2022 | 2022-09-08 | 6.5 | 14.5 | 4.5 | 2.0 |
| 2023 | 2023-09-08 | 10.6 | 16.5 | 9.6 | 1.0 |
| 2024 | 2024-09-07 | 16.2 | 19.0 | 17.2 | 1.0 |
| 2025 | 2025-09-07 | 14.3 | 20.8 | 12.8 | 1.5 |
| 2026 | 2026-09-07 | 10.1 | 15.6 | 8.3 | 1.8 |
Each field, the statistic it is, and the period it covers.
| Field | Statistic | Period |
|---|---|---|
| Air minimumTA_MIN · °C | daily minimum | whole calendar day |
| Air meanTA · °C | daily mean | whole calendar day |
| Grass-surface minimumTG_MIN · °C | daily minimum | whole calendar day |
Source: Korea Meteorological Administration (KMA) API Hub · 절기별 작물재해 관측정보 · KOGL Type 1 (free use with attribution)
Crop region
14.1°C
average this mid-month ten-day period
Weather addressed by where a crop actually grows, over the ten-day period Korean agriculture plans around.
Daegwallyeong ASOS 100 · 6 days to 2026-09-16Daily mean air temperature TA_DAVG · Sunshine duration SS_HR_DSUM
Korea Meteorological Administration (KMA) · KOGL Type 1
See crop weather
