India’s rainfall deficit 35% as monsoon stalls

UPSC Prelims + Mains Study Note | GS-I / GS-III

1. At a Glance

• India recorded a 35% cumulative deficit in southwest monsoon rainfall as of 17 June 2026, with the monsoon front stalled over the Konkan-Maharashtra belt — more than a week past its normal arrival at Mumbai. [1]
• The India Meteorological Department (IMD) had forecast below-normal rainfall (<92% of Long Period Average / LPA) for June 2026 in its Long Range Forecast (LRF) issued 13 April 2026. [2]
• Monsoon performance is the single largest determinant of India's agricultural output, rural incomes, reservoir levels, and food inflation — making it a perennial focal point across GS-I (geography), GS-III (agriculture, food security), and even GS-II (welfare schemes).
• The episode is occurring against the backdrop of El Niño conditions, which historically suppress monsoon rainfall over the Indian subcontinent.

2. Why in the News

• 17 June 2026: The Hindu reported India's monsoon deficit at 35%; the monsoon had not reached Mumbai despite the normal onset date being 11 June (for Mumbai) and 1 June (for Kerala). [1]
• Central India recorded a 61% deficit — the most severe regional shortfall — as the monsoon's northward advance stalled over Maharashtra and the Konkan coast. [1]
• Union Agriculture Minister Shivraj Singh Chouhan chaired an emergency review of kharif preparations on 17 June 2026, directing States to prepare crop-wise contingency plans for districts facing low or uneven rainfall. [1]
• IMD's Season Rainfall data (1–10 June 2026) placed the deficit at -26% at that point, which subsequently widened to -35% by 17 June. [2]
• Weekly El Niño reviews ordered by the Union government; 150–200 districts placed under priority monitoring. [1]

3. Background & Evolution

Origin and Normal Onset Pattern

• The Southwest (SW) Monsoon typically makes landfall over Kerala around 1 June and progresses northward, reaching Mumbai by ~11 June and covering all of India by ~15 July.
• The monsoon accounts for ~75% of India's annual rainfall and is critical to the kharif cropping season (June–September sowing).

Key Milestones | Year | Event | |------|-------| | 1875 | IMD established; systematic monsoon observations begin | | 1971 | India joins WMO (World Meteorological Organization) framework for weather forecasting | | 2003 | IMD launches Long Range Forecast (LRF) system — two-stage forecasts (April + June update) | | 2015–16 | Severe El Niño year; India recorded ~14% deficit; drought in 330+ districts | | 2023–24 | El Niño re-emergence; uneven monsoon; southern India received surplus, central India deficit | | April 2026 | IMD issues LRF predicting below-normal rainfall (<92% LPA) for June–September 2026 [2] | | June 2026 | Monsoon stalls; 35% national deficit recorded by 17 June [1] |

Predecessors / Related Concepts

• ENSO (El Niño–Southern Oscillation): Warm phase (El Niño) suppresses Indian monsoon; cold phase (La Niña) typically enhances it.
• Indian Ocean Dipole (IOD): Positive IOD can partially offset El Niño's adverse effect on monsoon.
• National Contingency Crop Planning framework exists under the ICAR (Indian Council of Agricultural Research) and Ministry of Agriculture & Farmers' Welfare.

4. Core Static Facts

Definitions & Classifications

• Long Period Average (LPA): Rainfall averaged over 50 years (currently based on 1971–2020 period); baseline for anomaly measurement.
• Below Normal Rainfall: <92% of LPA (IMD classification).
• Normal Rainfall: 96–104% of LPA.
• Excess Rainfall: >120% of LPA.
• Deficit/Deficient Rainfall: <90% of LPA at district level (used for drought declaration).

IMD Forecast Categories (LPA %) | Category | LPA % Range | |----------|-------------| | Excess | >120% | | Above Normal | 110–120% | | Normal | 96–104% | | Below Normal | 90–96% | | Deficient | <90% |

Implementing Bodies

• India Meteorological Department (IMD) — under Ministry of Earth Sciences (MoES) — issues monsoon forecasts.
• Ministry of Agriculture & Farmers' Welfare (MoAFW) — contingency planning, crop advisories, input supply.
• ICAR — develops district-level contingency crop plans.
• CWC (Central Water Commission) — reservoir storage monitoring.
• NDMA (National Disaster Management Authority) — drought management framework.

Key Numbers (2026 Episode) | Metric | Value | |--------|-------| | National deficit (17 June 2026) | 35% [1] | | Central India deficit | -61% [1] | | East & NE India deficit | -43% [1] | | Southern Peninsula deficit | -14% [1] | | Northwest India surplus | +5% [1] | | Reservoir storage (May 2026) | 30.4% of capacity [1] | | Reservoir storage in El Niño years (avg) | 25.1% [1] | | Districts under priority monitoring | 150–200 [1] | | IMD LRF Season deficit (1–10 June) | -26% [2] | | IMD forecast (June–Sept 2026) | Below normal (<92% LPA) [2] |

5. Multi-Dimensional Analysis

Economic

• A 35% deficit at this stage threatens kharif sowing — rice, pulses, oilseeds, cotton — which contributes ~50% of India's annual foodgrain production.
• Rainfall shortfall inflates food prices (CPI food component), pressuring RBI's monetary policy — deficit years historically see 100–150 bps spike in food inflation.
• Hydropower generation falls in deficit years; power deficits cascade to industrial output.
• Government is encouraging a shift to cotton and pulses (drought-tolerant, less water-intensive) to reduce agrarian loss. [1]

Social

• Rural households — especially small and marginal farmers (>86% of India's farm holdings per Agriculture Census) — bear disproportionate income loss in deficit monsoon years.
• Migration from deficit districts to urban centres intensifies; MGNREGS demand spikes in drought-hit districts.
• Women, who contribute ~60–80% of agricultural labour in India, are disproportionately affected by crop loss and reduced rural employment.

Environmental

• Stalled monsoon aggravates heat stress and water scarcity in already vulnerable central India.
• Reservoir deficits affect freshwater ecosystems and wetland habitats; CWC data showing 30.4% storage (vs 25.1% El Niño average) offers limited buffer. [1]
• El Niño-driven deficit years correlate with increased wildfire risk in dry forests of central and peninsular India.
• Groundwater depletion accelerates as farmers resort to bore wells; the Indo-Gangetic Plain is already classified as over-exploited (CGWB).

Administrative / Governance

• Government has institutionalised weekly El Niño reviews — indicating a shift toward proactive, science-based governance of monsoon risk. [1]
• Crop-wise contingency planning directed by MoAFW: districts must identify low-rainfall zones and provide farmers alternative crop options, seeds, and advisories immediately. [1]
• 150–200 districts under priority monitoring — this is a targeted, sub-national response that avoids blanket national emergency declarations. [1]
• Seed and fertilizer stock adequacy confirmed by Agriculture Minister — critical for switching to alternative crops mid-season. [1]

Scientific / Technological

• IMD's two-stage Long Range Forecast (LRF) — issued in April (Stage 1) and updated in June (Stage 2) — allows advance contingency planning. [2]
• Ensemble models (CFS, ECMWF, IITM CFSv2) are used for seasonal prediction; IMD's April 2026 LRF correctly flagged below-normal June rainfall. [2]
• ICAR's district contingency crop planning database — covering 600+ districts — is activated when IMD forecasts deficit conditions.

Historical

• India has experienced El Niño-linked monsoon deficits in 1987, 2002, 2009, 2014–15 — each causing GDP slowdown of 0.5–1.5%.
• The 2009 drought (52-year worst) saw a 23% national deficit and GDP agricultural growth of -0.2%.
• Reservoir storage of 30.4% in May 2026 (vs 25.1% El Niño year average) represents a better starting position than most historical El Niño years. [1]

6. Recent Developments (Last 12–18 Months)

• April 13, 2026: IMD issued Stage-1 LRF for SW Monsoon 2026 (June–September), predicting below-normal rainfall (<92% LPA) for the country as a whole. [2]
• 1–10 June 2026: Season rainfall deficit stood at -26% (IMD cumulative data). [2]
• 11 June 2026 (approx.): Normal onset date for Mumbai — monsoon failed to arrive, marking delay of 7+ days as of 17 June.
• 17 June 2026: National deficit reached 35%; Union Agriculture Minister Shivraj Singh Chouhan chaired emergency kharif review meeting; States directed to prepare contingency plans; 150–200 districts placed under priority monitoring. [1]
• Weekly El Niño reviews institutionalised; government encouraging shift to cotton and pulses in affected districts. [1]

7. Prelims Hooks

1. Southwest monsoon normally arrives in Kerala on 1 June and Mumbai around 11 June — any delay beyond 7 days is considered a significant anomaly.
2. IMD's LPA (Long Period Average) for monsoon is currently calculated over the 1971–2020 base period.
3. Below Normal rainfall = <92% of LPA (IMD classification); Deficient = <90% of LPA at district level.
4. IMD is under the Ministry of Earth Sciences — NOT Ministry of Environment, Forest and Climate Change (common error).
5. As of 17 June 2026, India's cumulative monsoon deficit stood at 35%. [1]
6. Central India recorded the highest regional deficit at 61% in the 2026 monsoon stall episode. [1]
7. Northwest India was the only region in surplus (+5%) during the same period. [1]
8. India's reservoir storage stood at 30.4% of capacity in May 2026, against a 25.1% average for El Niño years. [1]
9. The Union government placed 150–200 districts under priority monitoring during the 2026 monsoon deficit. [1]
10. El Niño (warm ENSO phase) suppresses Indian SW monsoon; La Niña typically enhances it.
11. ICAR (under MoAFW) prepares district-level contingency crop plans activated during monsoon deficits.
12. IMD issues its Long Range Forecast in two stages — Stage 1 in April, Stage 2 (updated) in June.
13. Kharif season is sown June–July and harvested September–October; primary crops: rice, maize, cotton, pulses, soybean.
14. Positive Indian Ocean Dipole (IOD) can partially compensate for El Niño's negative effect on Indian monsoon.
15. Agriculture Minister Shivraj Singh Chouhan (MoAFW) directed States to prepare crop-wise contingency plans in June 2026. [1]

8. Mains Relevance

GS Papers

• GS-I: Physical Geography — Monsoon: mechanism, variability, ENSO linkage.
• GS-III: Agriculture — Food security, kharif season, drought management; Disaster Management — drought preparedness, NDMA framework.

Specific Syllabus Headings

• Distribution of key natural resources across the world (including South Asia and the Indian subcontinent)
• Changes in critical geographical features and their effects on flora, fauna and human life (GS-I)
• Food security, agriculture — issues and related constraints (GS-III)
• Disaster and disaster management (GS-III)

Plausible Mains Question Stems

1. "Analyse the impact of El Niño-linked monsoon deficits on India's food security and rural livelihoods. What proactive governance mechanisms can minimise such risks?" (GS-III, 15 marks)
2. "The 2026 southwest monsoon deficit has exposed the fragility of India's kharif agriculture. Critically evaluate the effectiveness of India's contingency crop planning framework in mitigating monsoon risk." (GS-III, 15 marks)
3. "Discuss the role of ENSO (El Niño–Southern Oscillation) and the Indian Ocean Dipole in modulating India's monsoon variability. How has IMD improved its seasonal forecasting capabilities?" (GS-I, 10 marks)

9. Related Topics to Study Next

10. Common Errors / Trap Areas

1. IMD under wrong ministry: IMD is under Ministry of Earth Sciences (MoES), NOT Ministry of Environment or Home Affairs. A common mistake in MCQs.
2. Confusing LPA base period: Current LPA uses 1971–2020 (50-year average), not the older 1951–2000 base. Questions testing this have appeared.
3. El Niño = always drought: Incorrect. El Niño suppresses monsoon on average, but positive IOD or other factors can partially offset it — deficit is probabilistic, not certain.
4. Kharif vs Rabi confusion: Kharif is monsoon-sown (June–July), harvested in autumn; Rabi is winter-sown (Oct–Nov), harvested in spring. A deficit monsoon primarily threatens kharif, not rabi.
5. "Deficient" vs "Below Normal" conflation: IMD uses "Below Normal" (<92% LPA) at national scale and "Deficient" (<90%) at district scale — these are distinct thresholds used in different administrative contexts.