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Climate month by month
Official 30-year averages (1991–2020) measured by the Thai Meteorological Department at its Khon Kaen station, 5 km from Khon Kaen. Source (TMD, PDF)
| Month | Day / Night | Rainfall | Rainy days | Humidity | Years of data |
|---|---|---|---|---|---|
| January | 30.8°C / 18.1°C | 6 mm | 1 | 64% | 30 |
| February | 32.8°C / 20.0°C | 17 mm | 2 | 62% | 30 |
| March | 35.2°C / 23.0°C | 38 mm | 4 | 61% | 30 |
| April | 36.2°C / 24.8°C | 95 mm | 7 | 65% | 30 |
| May | 34.9°C / 25.1°C | 155 mm | 14 | 74% | 30 |
| June | 34.0°C / 25.1°C | 146 mm | 14 | 76% | 30 |
| July | 33.0°C / 24.6°C | 178 mm | 17 | 78% | 30 |
| August | 32.4°C / 24.3°C | 222 mm | 18 | 81% | 30 |
| September | 32.0°C / 24.1°C | 246 mm | 18 | 83% | 30 |
| October | 31.8°C / 22.9°C | 102 mm | 9 | 77% | 30 |
| November | 31.6°C / 20.7°C | 22 mm | 2 | 69% | 30 |
| December | 30.3°C / 18.2°C | 5 mm | 1 | 65% | 30 |
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