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Phetchabun, Thailand climate
Aw Tropical savanna (dry winter)
Phetchabun has a mildly seasonal tropical climate (Tropical savanna (dry winter), Köppen Aw). The hottest month is April with an average daily high near 99°F, while the coldest is December averaging around 64°F at night. Precipitation totals about 46 inches a year and is strongly seasonal — September alone averages 8.9 inches while January barely receives 0.48 inches.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Phetchabun climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 90 | 94 | 98 | 99 | 95 | 93 | 91 | 90 | 90 | 91 | 91 | 89 |
| Avg temp (°F) | 78 | 81 | 85 | 88 | 86 | 85 | 83 | 83 | 83 | 82 | 80 | 77 |
| Avg low (°F) | 64 | 67 | 72 | 76 | 76 | 76 | 76 | 75 | 75 | 74 | 69 | 64 |
| Precipitation (in) | 0.5 | 0.6 | 2.2 | 2.3 | 6.7 | 5.5 | 6.5 | 8.7 | 8.9 | 2.6 | 0.7 | 0.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 90 | 94 | 98 | 99 | 95 | 93 |
| Avg temp (°F) | 78 | 81 | 85 | 88 | 86 | 85 |
| Avg low (°F) | 64 | 67 | 72 | 76 | 76 | 76 |
| Precipitation (in) | 0.5 | 0.6 | 2.2 | 2.3 | 6.7 | 5.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 91 | 90 | 90 | 91 | 91 | 89 |
| Avg temp (°F) | 83 | 83 | 83 | 82 | 80 | 77 |
| Avg low (°F) | 76 | 75 | 75 | 74 | 69 | 64 |
| Precipitation (in) | 6.5 | 8.7 | 8.9 | 2.6 | 0.7 | 0.5 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 2 | 5 | 8 | 16 | 16 | 18 | 20 | 18 | 10 | 2 | 1 |
| Days with high ≥ 90°F (days) | 18 | 22 | 26 | 26 | 25 | 24 | 20 | 18 | 18 | 20 | 18 | 14 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 2 | 2 | 5 | 8 | 16 | 16 |
| Days with high ≥ 90°F (days) | 18 | 22 | 26 | 26 | 25 | 24 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 18 | 20 | 18 | 10 | 2 | 1 |
| Days with high ≥ 90°F (days) | 20 | 18 | 18 | 20 | 18 | 14 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 32 | 31 | 44 | 59 | 80 | 89 | 91 | 93 | 85 | 61 | 43 | 32 |
| Relative humidity (%) | 65 | 57 | 57 | 63 | 76 | 82 | 84 | 86 | 87 | 85 | 79 | 72 |
| Wind speed (mph) | 3.4 | 3.4 | 3.4 | 2.9 | 2.9 | 3.6 | 3.8 | 3.5 | 2.6 | 3.1 | 3.6 | 3.9 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 32 | 31 | 44 | 59 | 80 | 89 |
| Relative humidity (%) | 65 | 57 | 57 | 63 | 76 | 82 |
| Wind speed (mph) | 3.4 | 3.4 | 3.4 | 2.9 | 2.9 | 3.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 91 | 93 | 85 | 61 | 43 | 32 |
| Relative humidity (%) | 84 | 86 | 87 | 85 | 79 | 72 |
| Wind speed (mph) | 3.8 | 3.5 | 2.6 | 3.1 | 3.6 | 3.9 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 26 years of daily observations at Phetchabun, a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.