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Upper and lower values check for the range check for different the parameters.
| Parameter | Acronyms | Range |
|---|---|---|
| Temperature | ta, Tmax, Tmin (°C) | −60 to +40 °C |
| Air pressure | P (hPa) | <800 to >1050 |
| Mean Sea Level Pressure | MSLP (hPa) | <980 to >1050 |
| Precipitation | RR (mm, sum) | <0 to >1250 |
| Number of rain days | NR (number) | <0 to> 28 |
