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| Locations | Temperature(°C) | Max Wind | Amount of rainfall (mm) | ||||
| Max | Min | Direction | Speed (km/hr) | Time | 24 hr | Year-to-Date | |
| May 18, 2011 | |||||||
| Northern Part | |||||||
| MAE HONG SON | 33.8 | 24.0 | S | 18.53 | 18:20 | 31.6 | 355.6 |
| DOI ANG KANG | 21.5 | 17.0 | W | 18.53 | 22:45 | 59.4 | 587.1 |
| CHIANG RAI | 31.0 | 22.7 | WSW | 24.09 | 13:30 | 2.4 | 316.6 |
| CHAING RAI AGROMET. | 30.5 | 22.0 | SSE | 3.71 | 13:00 | 30.5 | 384.2 |
| THUNG CHANG | 31.7 | 21.5 | S | 12.97 | 16:53 | 0.6 | 440.1 |
| PHAYAO | 32.0 | 23.0 | SSW | 12.97 | 15:10 | 1.0 | 419.4 |
| THA WANGPHA | 32.7 | 22.8 | NW | 7.41 | 15:30 | 2.2 | 327.5 |
| THOEN | 33.6 | 23.3 | WNW | 50.04 | 15:54 | 12.1 | 438.3 |
| MAE SARIANG | 30.6 | 23.5 | S | 12.97 | 12:54 | 8.3 | 379.3 |
| MAE JO AGROMET. | - N/A - | ||||||
| CHIANG MAI | 32.2 | 23.0 | SW | 25.95 | 15:45 | 5.0 | 408.8 |
| LAMPANG | 33.5 | 23.5 | - N/A - | 0.6 | 479.6 | ||
| LAMPHUN | 31.6 | 23.5 | - N/A - | 15.1 | 421.1 | ||
| PHRAE | 32.3 | 24.5 | W | 11.12 | 13:12 | 0.6 | 444.6 |
| NAN | 31.8 | 23.1 | W | 5.56 | 14:30 | 25.0 | 437.5 |
| NAN AGROMET. | 31.1 | 22.0 | calm | 13.2 | 442.1 | ||
| LAMPANG AGROMET. | 31.0 | 22.8 | SSW | 20.39 | 15:12 | 4.2 | 491.6 |
| UTTARADIT | 33.5 | 24.0 | - N/A - | 12.6 | 489.1 | ||
| SUKHOTHAI* | 33.5 | 24.4 | W | 46.33 | 17:50 | 50.2 | 567.5 |
| SI SAMRONG AGROMET. | 33.2 | 24.0 | - N/A - | 35.2 | 547.4 | ||
| LOM SAK | 31.2 | 24.5 | S | 14.83 | 18:00 | 34.9 | 228.9 |
| MAE SOT | 33.5 | 24.0 | WNW | 11.12 | 14:20 | 2.8 | 339.3 |
| TAK | 32.4 | 24.1 | WSW | 40.77 | 15:02 | 8.0 | 390.5 |
| BHUMIBOL DAM | 32.4 | 23.2 | S | 7.41 | 20:06 | 0.4 | 528.6 |
| PHITSANULOK | 34.6 | 24.7 | SSW | 18.53 | 19:40 | 3.2 | 351.0 |
| PHETCHABUN | 31.5 | 24.5 | WNW | 16.68 | 20:40 | 31.2 | 413.8 |
| KAMPHAENG PHET | 32.9 | 23.7 | WSW | 37.07 | 16:42 | 19.4 | 326.4 |
| UMPHANG | 31.5 | 21.5 | WSW | 11.12 | 16:16 | 13.4 | 476.0 |
| PICHIT AGROMET. | 32.3 | 24.6 | SW | 22.24 | 19:10 | 21.0 | 384.9 |
| DOI MU SOE AGROMET. | 27.0 | 20.7 | W | 35.21 | 17:38 | 22.4 | 553.6 |
| WICHIAN BURI | 32.8 | 23.9 | - N/A - | - | 288.3 | ||
| Northeastern Part | |||||||
| LOEI AGROMET. | 31.2 | 23.0 | - N/A - | 24.0 | 192.9 | ||
| NONG KHAI | 31.3 | 25.0 | - N/A - | 30.2 | 319.3 | ||
| LOEI | 30.7 | 23.4 | - N/A - | 9.6 | 254.6 | ||
| UDON THANI | 27.7 | 23.3 | - N/A - | 42.9 | 271.3 | ||
| SAKON NAKHON AGROMET. | 30.0 | 25.0 | - N/A - | 52.6 | 385.0 | ||
| SAKON NAKHON | 30.0 | 25.5 | S | 18.53 | 11:43 | 30.1 | 265.1 |
| NAKHON PHANOM | 30.9 | 24.4 | - N/A - | 50.5 | 225.8 | ||
| NAKHON PHANOM AGROMET. | 30.6 | 22.5 | S | 9.27 | 13:00 | 22.3 | 297.2 |
| NONG BUA LAM PHU | 30.0 | 23.5 | SW | 20.39 | 12:49 | 15.0 | 260.6 |
| KHON KAEN | 30.7 | 25.1 | SSW | 20.39 | 11:32 | - | 117.9 |
| MAHASARAKHAM | 31.0 | 25.0 | - N/A - | 5.5 | 221.2 | ||
| MUKDAHAN | 31.0 | 24.3 | SE | 31.51 | 11:50 | Trace | 115.4 |
| THA PHRA AGROMET. | 31.0 | 24.8 | - N/A - | - | 129.9 | ||
| KALASIN | 28.0 | 24.0 | NNE | 18.53 | 16:10 | 27.4 | 166.3 |
| CHAIYAPHUM | 31.8 | 24.7 | - N/A - | Trace | 250.8 | ||
| ROI ET AGROMET. | 28.7 | 23.2 | SSW | 22.24 | 09:23 | 38.2 | 319.6 |
| ROI ET | 29.0 | 23.1 | S | 12.97 | 11:35 | 18.2 | 270.6 |
| UBON RATCHATHANI | 30.3 | 20.7 | WSW | 24.09 | 10:51 | 0.2 | 279.6 |
| UBON RATCHATHANI AGROMET. | 30.0 | 22.6 | S | 12.97 | 10:19 | 1.7 | 191.1 |
| SI SAKET AGROMET. | 30.8 | 24.1 | - N/A - | 3.8 | 215.6 | ||
| THA TUM | 31.9 | 24.8 | SW | 20.39 | 12:22 | 34.2 | 129.6 |
| NAKHON RATCHASIMA | 33.5 | 23.4 | - N/A - | - | 281.5 | ||
| SURIN | 30.9 | 23.5 | SSW | 25.95 | 16:05 | 26.5 | 231.5 |
| SURIN AGROMET. | 31.3 | 23.8 | - N/A - | 1.0 | 171.5 | ||
| CHOK CHAI | 32.1 | 22.4 | W | 22.24 | 05:10 | 0.1 | 139.5 |
| PAKCHONG AGROMET. | 29.8 | 21.4 | W | 31.51 | 03:10 | 1.8 | 380.5 |
| NANG RONG | 32.8 | 22.8 | S | 25.95 | 03:10 | 2.7 | 344.0 |
| BURIRUM | 32.0 | 23.0 | S | 18.53 | 11:20 | 12.5 | 279.0 |
| Central Part | |||||||
| NAKHON SAWAN | 32.8 | 23.7 | SSW | 22.24 | 17:32 | 0.7 | 406.3 |
| TAKFA AGROMET. | 32.0 | 22.5 | NE | 24.09 | 15:55 | 2.0 | 272.9 |
| CHAINAT AGROMET. | 32.5 | 23.5 | SSW | 9.27 | 19:00 | 2.0 | 237.0 |
| AYUTTHAYA | 30.7 | 23.2 | ESE | 12.97 | 01:20 | 1.1 | 263.7 |
| NAKORNNAYOK | - N/A - | ||||||
| BUA CHUM | 32.7 | 22.5 | SW | 18.53 | 17:04 | - | 139.8 |
| PATHUMTHANI | 32.8 | 23.7 | E | 7.41 | 07:00 | 0.7 | 410.0 |
| Samut Prakarn | 31.3 | 25.4 | ENE | 18.53 | 10:00 | 22.0 | 421.7 |
| THONG PHAPHUM | 33.7 | 24.5 | S | 11.12 | 15:00 | 13.2 | 445.3 |
| SUPHAN BURI | 33.4 | 24.0 | - N/A - | 1.7 | 192.1 | ||
| LOP BURI | 31.7 | 23.5 | W | 22.24 | 01:10 | 0.1 | 251.8 |
| U THONG AGROMET. | 34.1 | 24.8 | S | 7.41 | 16:00 | - | 149.0 |
| SUVARNABHUMI AIRPORT | 32.1 | 24.8 | S | 29.65 | 15:00 | 7.0 | 344.3 |
| KANCHANA BURI | 34.5 | 24.4 | S | 22.24 | 17:30 | 15.5 | 460.4 |
| NAKHONPATHOM | 33.5 | 25.4 | - N/A - | - | 219.9 | ||
| BANG NA AGROMET. | 32.3 | 25.2 | S | 9.27 | 15:00 | 15.1 | 431.8 |
| BANGKOK PORT (KLONG TOEI) | 33.0 | 26.0 | S | 18.53 | 16:30 | 4.2 | 557.7 |
| BANGKOK METROPOLIS | 34.0 | 25.6 | SSW | 16.68 | 06:10 | 18.4 | 560.4 |
| DON MUANG AIRPORT | 33.3 | 24.2 | WSW | 18.53 | 16:00 | 0.7 | 528.7 |
| PILOT STATION | 29.6 | 27.4 | S | 27.80 | 19:40 | 0.6 | 119.1 |
| RATCHA BURI | 32.9 | 25.7 | SW | 22.24 | 14:14 | - | 139.9 |
| Eastern Part | |||||||
| PRACHIN BURI | 33.0 | 24.0 | - N/A - | 0.8 | 400.1 | ||
| KABIN BURI | 34.9 | 24.7 | - N/A - | - | 239.6 | ||
| SA KAEW | 32.0 | 23.6 | SSW | 9.27 | 18:30 | 0.5 | 505.8 |
| CHACHOENGSAO | 34.3 | 23.4 | SW | 18.53 | 07:00 | 0.8 | 412.6 |
| CHON BURI | 34.0 | 24.5 | - N/A - | 28.4 | 365.4 | ||
| KO SICHANG | 30.4 | 27.0 | NE | 33.36 | 06:20 | 1.1 | 241.9 |
| PHATTHAYA | 30.5 | 26.7 | - N/A - | 68.0 | 354.8 | ||
| ARANYA PRATHET | 32.9 | 24.0 | WSW | 18.53 | 10:35 | Trace | 249.0 |
| LAEM CHABANG | 30.2 | 25.1 | ESE | 25.95 | 07:18 | 29.0 | 347.6 |
| SATTAHIP | 30.9 | 25.7 | - N/A - | 59.7 | 412.3 | ||
| RAYONG | 30.5 | 24.4 | - N/A - | Trace | 338.3 | ||
| HUAI PONG AGROMET. | 33.5 | 24.0 | - N/A - | 2.5 | 663.5 | ||
| CHANTHA BURI | 31.6 | 24.0 | - N/A - | - | 432.5 | ||
| PHLIU AGROMET. | 31.7 | 22.7 | - N/A - | 0.2 | 463.2 | ||
| TRAD | 31.6 | 23.5 | - N/A - | - | 829.8 | ||
| Southern Part (East Coast) | |||||||
| PHETCHA BURI | 32.3 | 26.5 | ESE | 37.07 | 10:20 | - | 244.8 |
| NONG PHLUB AGROMET. | 31.0 | 23.7 | E | 18.53 | 14:00 | - | 204.9 |
| HUA HIN | 30.7 | 26.0 | - N/A - | - | 136.3 | ||
| PRACHUAP KHIRIKHAN | 34.3 | 24.7 | SE | 22.24 | 17:40 | 0.4 | 223.0 |
| CHUMPHON | 33.6 | 25.0 | - N/A - | 9.8 | 669.5 | ||
| SAWI AGROMET. | 33.8 | 24.7 | calm | 8.8 | 885.5 | ||
| KO SAMUI | 31.9 | 27.2 | - N/A - | 0.2 | 1,633.7 | ||
| SURAT THANI | 33.5 | 23.5 | WSW | 38.92 | 15:25 | - | 1,072.7 |
| NAKHONSI THAMMARAT | 33.4 | 22.9 | WSW | 18.53 | 13:20 | - | 2,313.2 |
| NAKHONSI THAMMARAT AGROMET. | 33.2 | 24.2 | SW | 11.12 | 16:00 | 0.5 | 2,083.1 |
| SURAT THANI AGROMET. | 33.1 | 23.5 | ESE | 11.12 | 15:00 | - | 1,922.5 |
| PHRA SANG | 33.3 | 22.6 | - N/A - | Trace | 769.7 | ||
| CHAWANG | 33.7 | 22.5 | NE | 9.27 | 12:35 | - | 960.3 |
| PHATTHALUNG AGROMET. | 34.0 | 24.4 | W | 14.83 | 16:52 | - | 1,435.1 |
| SONGKHLA | 32.8 | 25.0 | - N/A - | Trace | 874.2 | ||
| HAT YAI AIRPORT | 32.9 | 23.5 | - N/A - | 3.3 | 655.6 | ||
| KHO HONG AGROMET. | 33.0 | 24.1 | NNE | 12.97 | 13:14 | 2.6 | 747.7 |
| SA DAO | 33.7 | 23.0 | W | 27.80 | 12:55 | 0.4 | 302.4 |
| PATTANI AIRPORT | 33.6 | 24.0 | W | 25.95 | 15:40 | - | 585.1 |
| YALA AGROMET. | 34.1 | 23.8 | WSW | 27.80 | 15:49 | 23.1 | 866.7 |
| NARATHIWAT | 32.7 | 24.0 | E | 24.09 | 18:10 | 44.9 | 1,320.9 |
| Southern Part (West Coast) | |||||||
| RANONG | 32.8 | 24.0 | WNW | 24.09 | 14:17 | 2.7 | 960.2 |
| TAKUA PA | 32.2 | 23.7 | W | 14.83 | 14:00 | 3.8 | 1,191.3 |
| KRABI | 32.1 | 21.2 | NE | 18.53 | 16:01 | - | 826.0 |
| PHUKET | 32.1 | 25.7 | WNW | 18.53 | 14:47 | 61.2 | 687.1 |
| PHUKET AIRPORT | 30.7 | 24.6 | W | 18.53 | 12:00 | 24.0 | 865.1 |
| KO LANTA | 31.3 | 23.0 | - N/A - | 0.8 | 399.8 | ||
| TRANG AIRPORT | 33.7 | 23.3 | - N/A - | - | 802.2 | ||
| SATUN | 31.6 | 24.0 | S | 16.68 | 13:50 | 62.5 | 832.0 |
| Note: This is raw observation data which hasn't undergone the inspection process yet. |