# Kailu County

Kailu County (Mongolian: ᠺᠠᠶᠢᠯᠦ ᠰᠢᠶᠠᠨ; Chinese: 开鲁县) is a county in the east of Inner Mongolia, China. It is under the administration of Tongliao City, 76 kilometres (47 mi) to the east, and China National Highway 303 passes through it.

## History

As the traditional seat of Ar Khorchin, East Jaruud and West Jaruud, the 3 areas are abbreviated in Chinese as the 3 R's since each contains the word R transcribed as "LU" in Chinese. The 3 R's was then known as the 3 Lu's as well. In 1905, with the slogan of developing the 3 R's (開發三魯), the city took the name of such abbreviation and was named 開魯 (KAI LU).

## Administrative divisions

Kailu County is made up of 10 towns.
| Name | Simplified Chinese | Hanyu Pinyin | Mongolian (Hudum Script) | Mongolian (Cyrillic) | Administrative division code |
| Towns ||||||
| Kailu Town | 开鲁镇 | Kāilǔ Zhèn | ᠺᠠᠢᠯᠦ ᠪᠠᠯᠭᠠᠰᠤ | Кайл балгас | 150523100 |
| Dayushu Town | 大榆树镇 | Dàyúshù Zhèn | ᠳ᠋ᠠ ᠢᠦᠢ ᠱᠦ ᠪᠠᠯᠭᠠᠰᠤ | Да юй шуу балгас | 150523101 |
| Heilongba Town | 黑龙坝镇 | Hēilóngbà Zhèn | ᠾᠧᠢ ᠯᠦᠩ ᠪᠠ ᠪᠠᠯᠭᠠᠰᠤ | Гей лүн ба балгас | 150523102 |
| Maixin Town | 麦新镇 | Màixīn Zhèn | ᠮᠠᠢᠰᠢᠨ ᠪᠠᠯᠭᠠᠰᠤ | Майшин балгас | 150523103 |
| Ih Tal Town | 义和塔拉镇 | Yìhétǎlā Zhèn | ᠶᠡᠬᠡᠲᠠᠯ᠎ᠠ ᠪᠠᠯᠭᠠᠰᠤ | Ихдэлээ балгас | 150523104 |
| Jianhua Town | 建华镇 | Jiànhuá Zhèn | ᠵᠢᠶᠠᠨᠬᠤᠸᠠ ᠪᠠᠯᠭᠠᠰᠤ | Жаанхуа балгас | 150523105 |
| Xiaojieji Town | 小街基镇 | Xiǎojiējī Zhèn | ᠰᠢᠶᠣᠤ ᠵᠢᠶᠧ ᠵᠢᠢ ᠪᠠᠯᠭᠠᠰᠤ | Шяо жье жий балгас | 150523106 |
| Dongfeng Town | 东风镇 | Dōngfēng Zhèn | ᠳ᠋ᠦᠩ ᠹᠧᠩ ᠪᠠᠯᠭᠠᠰᠤ | Дүн фен балгас | 150523107 |
| Jargalangt Town | 吉日嘎郎吐镇 | Jírìgālángtǔ Zhèn | ᠵᠢᠷᠭᠠᠯᠠᠩᠲᠤ ᠪᠠᠯᠭᠠᠰᠤ | Жаргалант балгас | 150523108 |
| Donglai Town | 东来镇 | Dōnglái Zhèn | ᠳ᠋ᠦᠩ ᠯᠠᠢ ᠪᠠᠯᠭᠠᠰᠤ | Дүн лай балгас | 150523109 |
Others:
** Qinghe Farm (清河农场)
** Liaohe Farm (辽河农场)
** Bao'an Farm (保安农场)

## Climate

Kailu County features a cold semi-arid climate (Köppen BSk), marked by long, very cold and dry winters, hot, somewhat humid summers, and strong winds, especially in spring. The monthly daily mean temperature in January, the coldest month, is −13.0 °C (8.6 °F), and in July, the warmest month, 24.2 °C (75.6 °F), with the annual mean at 7.0 °C (44.6 °F). The annual precipitation is 327.4 millimetres (12.9 in), with nearly half of it falling in July and August alone.
Climate data for Kailu (1991–2020 normals, extremes 1971–2010) :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 10.6 (51.1) | 19.6 (67.3) | 28.5 (83.3) | 33.2 (91.8) | 41.7 (107.1) | 41.7 (107.1) | 38.9 (102.0) | 38.2 (100.8) | 34.7 (94.5) | 30.3 (86.5) | 22.7 (72.9) | 13.9 (57.0) | 41.7 (107.1) |
| Mean daily maximum °C (°F) | −6.0 (21.2) | −0.8 (30.6) | 7.0 (44.6) | 16.7 (62.1) | 24.2 (75.6) | 28.5 (83.3) | 30.2 (86.4) | 28.8 (83.8) | 24.1 (75.4) | 15.3 (59.5) | 3.7 (38.7) | −4.6 (23.7) | 13.9 (57.1) |
| Daily mean °C (°F) | −12.7 (9.1) | −8.1 (17.4) | −0.1 (31.8) | 9.7 (49.5) | 17.5 (63.5) | 22.4 (72.3) | 24.6 (76.3) | 22.9 (73.2) | 17.0 (62.6) | 8.3 (46.9) | −2.7 (27.1) | −10.8 (12.6) | 7.3 (45.2) |
| Mean daily minimum °C (°F) | −17.9 (−0.2) | −14.1 (6.6) | −6.6 (20.1) | 2.7 (36.9) | 10.8 (51.4) | 16.3 (61.3) | 19.4 (66.9) | 17.5 (63.5) | 10.6 (51.1) | 2.2 (36.0) | −7.7 (18.1) | −15.7 (3.7) | 1.5 (34.6) |
| Record low °C (°F) | −33.6 (−28.5) | −30.0 (−22.0) | −24.6 (−12.3) | −9.8 (14.4) | −2.1 (28.2) | 3.9 (39.0) | 10.9 (51.6) | 5.2 (41.4) | −1.7 (28.9) | −11.3 (11.7) | −22.6 (−8.7) | −29.0 (−20.2) | −33.6 (−28.5) |
| Average precipitation mm (inches) | 1.4 (0.06) | 1.8 (0.07) | 5.3 (0.21) | 12.4 (0.49) | 34.6 (1.36) | 67.4 (2.65) | 85.3 (3.36) | 68.6 (2.70) | 28.2 (1.11) | 15.1 (0.59) | 6.1 (0.24) | 2.1 (0.08) | 328.3 (12.92) |
| Average precipitation days (≥ 0.1 mm) | 1.8 | 1.8 | 2.6 | 4.3 | 7.5 | 10.2 | 10.5 | 8.5 | 6.0 | 3.6 | 2.7 | 2.3 | 61.8 |
| Average snowy days | 2.8 | 2.3 | 3.6 | 1.5 | 0 | 0 | 0 | 0 | 0 | 1.0 | 3.0 | 3.5 | 17.7 |
| Average relative humidity (%) | 51 | 42 | 38 | 36 | 41 | 55 | 68 | 68 | 57 | 49 | 50 | 53 | 51 |
| Mean monthly sunshine hours | 227.4 | 235.6 | 279.8 | 273.8 | 296.0 | 282.5 | 273.4 | 279.1 | 271.1 | 251.7 | 211.3 | 208.7 | 3,090.4 |
| Percent possible sunshine | 78 | 79 | 75 | 68 | 65 | 61 | 59 | 65 | 73 | 75 | 74 | 75 | 71 |
| Source 1: China Meteorological Administration ||||||||||||||
| Source 2: Weather China ||||||||||||||