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Mizoram - Climate

The upper part of the hills are, predictably cold, cool during the summer, while the lower reaches are relatively warm and humid. Storms break out during March-April, just before or around the summer. The maximum average temperature in the summer is 30 degree C while in the winter the minimum average temperature is around 11 degree C. The four months between November and February are winter in Mizoram which is followed by the spring. The storms come in the middle of April to herald the beginning of the summer. The mercury starts rising and the hills come under the cover of a haze. The three months from June to August are know as the rainy season. The climate as at its moderate best in the two autumnal months. September and October, when the temperature moves between 19 to 24 degree C.

The weather of the state is highly affected due to any cyclonic development in the Bay of Bengal because of its short aerial distance from the ocean system. The state receives quite a sizable amount of rainfall not only during the monsoon season, but also as and when any cyclonic system hits the area. The climate of Mizoram is neither veryhot nor very cold, but moderate throughout the year. The whole state falls under the direct influence of south-west monsoon and receives an adequate amount of rainfall. The climate of the state is humid-tropical, characterized by short winter, long summer with heavy rainfall. The fluctuation in temperature is not much and the highest temperature is observed during May to July and starts decreasing with the onset of monsoon.

This fall of temperature continues with the span of monsoon and becomes more evident with the retreating monsoon. The temperature becomes minimum in December and January. In autumn the temperature ranges between 180 C to 250 C. During winter season, the minimum and maximum temperature ranges between 11°C to 31°C.

During the last two decades, a substantial increase in average temperature has been observed, which may be due to global warming. The global warming is mainly due to non-sustainable model of development and mismanagement of environment. There was an increase in the mean maximum temperature by 1.8°C just in the 5 years 2000 to 2006, which seems to be one of the reasons for erratic and non periodic nature of the rainfall. Irregular behaviour of rainfall and the rise in mean maximum and mean minimum temperatures may be due to a sharp decline in the forest cover due to various activities like road construction, lack of proper implementation of the forest acts and absence of the monitoring body.

Climate change is already becoming a ground reality for scores of farmers in the hill state of Mizoram. Changing rainfall pattern and rising temperatures are forcing them to move away from traditional farming and grow exotic crops that are heat-resistant and can survive erratic rains. The rainfall pattern has changed so drastically that farmers are left clueless. The dates for burning jhums (shifting cultivation) had to be shifted twice this year due to rains. While there is an increasing trend in monsoon rainfall, there is decrease in post-monsoon rainfall and winter rainfall. Heavy precipitation events have gone up.

Mizoram is likely to unseat Assam as one of the major centres of muga silk production. Thanks to increased temperature and incessant and unpredictable rainfall, Assam’s production of muga silk cocoons has been hit. Mizoram has lapped up the opportunity and stepped in to fill the gap created by a drastic decline in muga production in Assam.

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Page last modified: 20-02-2018 18:42:50 ZULU