Weather Vs Climate Before studying India’s climate, it is important to understand two basic terms: weather and climate. Weather tells us what the atmosphere is like right now, while climate tells us what the atmosphere of a place is like most of the time over many years. For example: The Difference between Weather and Climate are as follow: Weather Climate Weather is the day-to-day condition of the atmosphere of a place. Climate is the average weather pattern of a place over 30–40 years. It can change quickly – within minutes or hours. It changes very slowly over a long period. Includes daily changes in temperature, rainfall, humidity, wind, etc. Shows long-term patterns like hot/dry climate, cold/wet climate, etc. Describes the atmosphere at a particular time. Describes the general atmospheric conditions of a place for many years. Example: Today it is sunny, tomorrow it may rain. Example: Rajasthan has a hot, dry climate; Kerala has a hot, wet climate. Helpful for short-term planning (clothes for the day, carrying an umbrella). Helpful for long-term planning (crop selection, construction, tourism). *Elements of Weather and Climate 1. Temperature 2. Atmospheric Pressure 3. Wind 4. Humidity 5. Precipitation (Rainfall, Snow, Hail) India’s Climate: Monsoon Type The term monsoon comes from the Arabic word “mausim”, meaning season. This tells us that monsoons are seasonal winds that bring major changes in temperature and rainfall. India is known for its monsoon type of climate, which makes our weather pattern very different from many other countries. * Why is India’s Climate Called Monsoon Type? India receives most of its rainfall from seasonal winds—the Southwest Monsoon and Northeast Monsoon.These winds reverse their direction depending on the season, leading to very clear changes in India’s climate. *Key Features of India’s Monsoon Type Climate FACTORS AFFECTING INDIA’s CLIMATE 1. Latitude Latitude means how far a place is from the Equator. 2. Altitude (Height Above Sea Level) Temperature decreases with height.For every 165 m rise in altitude, temperature drops by 1°C. So, higher places are always cooler. 3. Distance from the Sea The sea affects the climate of nearby areas. 4. Mountain Barriers Mountains play a major role in controlling temperature, wind, and rainfall. Himalayas 5. Pressure and Wind Systems The movement of air (winds) depends on pressure conditions. 6. Upper Air Circulation (Jet Streams) Jet streams are fast-moving winds in the upper atmosphere. 7. Ocean Currents Ocean currents are continuous flows of warm or cold water in the oceans. This affects the temperature and sometimes rainfall of coastal areas. THE SEASONS India’s climate is known for its different seasonal patterns. Unlike many other nations, which have simply summer and winter, India has a strongly seasonal climate due to the monsoon system and its tropical-subtropical position. The Indian Meteorological Department (IMD) divides the year into four major seasons: 1. The Cold Weather Season (Winter) – December to February 2. The Hot Weather Season (Summer) – March to May 3. The Advancing Monsoon Season – June to September 4. The Retreating Monsoon Season – October to November DISTRIBUTION OF RAINFALL IN INDIA Rainfall in India varies throughout the country. Some areas have heavy rainfall, while others receive very little. This uneven or irregular pattern is known as distribution of rainfall. 1. Areas of Heavy Rainfall (More than 200 cm annually) 2. Areas of Moderate Rainfall (100–200 cm annually) 3. Areas of Low Rainfall (Less than 100 cm annually) 4. Regions of Very Low Rainfall (Below 25 cm annually) MONSOON AS A UNIFYING BOND India has a huge variety of climates, landforms, languages, and cultures, the monsoon binds the whole country together.It is one of the most important features of India’s climate and affects almost every part of the nation. There are some reasons that shows that Monsoon is a Unifying Force: 1. Seasonal Rhythm Shared by Entire Country The monsoon follows a distinct seasonal pattern—the arrival, progress, and withdrawal of rains. This pattern is felt across India, giving people everywhere a common climatic experience. 2. Whole Country Awaits Its Arrival Every year, after the intense summer heat, the entire nation waits for the monsoon.The excitement of the first rain is felt from Kerala to Kashmir and from Gujarat to Assam. 3. Monsoon Affects Agriculture All Over India India’s agriculture is heavily monsoon-dependent. The monsoon influences the whole economy, connecting all regions. 4. Water Availability Everywhere Depends on Monsoon Rivers, lakes, ponds, and groundwater are mainly recharged by monsoon rainfall. So, all states rely on monsoon rains. 5. Monsoon Creates a Sense of Cultural Unity Many festivals, songs, and traditions in India are linked to the monsoon. This gives India a shared cultural identity during the rainy season. 6. Monsoon Winds Cover the Entire Subcontinent The Southwest Monsoon and the Retreating Monsoon touch almost every part of India
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