Historical Climate Data & Weather Trends (1981-2025)
Comprehensive climate analysis across 23 districts in Assam, India
Assam Climate Overview
Assam, India has an average annual temperature of 23.8°C, approximately 1924mm of rainfall per year, and average humidity of 73%. Temperatures range from 5.7°C in Kamrup to 41.4°C in Tinsukia. This page covers 45 years of historical climate data (1981–2025) across all 23 districts, sourced from NASA POWER — with monthly charts, yearly trends, and a full district comparison table.
☀️
Quick Climate Facts
(1981 - 2025)
State Avg
🌡️
Average Temperature
23.8°C
State Avg
❄️
Min Temperature
7.5°C
State Avg
🔥
Max Temperature
37.8°C
State Avg
🌧️
Average Rainfall
5.3 mm/day
State Avg
💧
Average Humidity
73.2%
State Avg
💨
Average Wind Speed
1.0 m/s
State Avg
📍
Number of Districts
23
State Avg
📅
Data Period
1981-2025
📊Monthly Climate Averages for Assam
📖Understanding Assam's Climate Patterns
These charts show monthly temperature and rainfall patterns for Assam, averaged across all 23 districts and 45 years of data. Use them to understand seasonal shifts — when monsoon arrives, which months are hottest, and how humidity peaks align with rainfall.
This chart tracks how Assam's climate has changed from 1981 to 2025. Switch between Temperature, Rainfall, and Humidity tabs to spot long-term trends. Use the year range buttons to zoom into recent decades or view the full 45-year picture.
🌡️Yearly Temperature Trends(2016–2025)
Annual temp trends · 1981–2025 · °C
🗺️Climate Diversity Across Assam
Across its 23 districts, Assam has significant climate variation. Kamrup is the coolest district with average lows of 5.7°C, while Tinsukia reaches average highs of 41.4°C. Cachar is the wettest district at 6.8 mm/day. These differences are driven by altitude, proximity to water bodies, and geography.
Coldest District
Kamrup
5.7°C min
Hottest District
Tinsukia
41.4°C max
Wettest District
Cachar
6.8 mm/day
📍Weather Data for All 23 Districts in Assam
Click any district to view its full 45-year weather history — monthly patterns, yearly trends, and extreme records. Use search to find a specific district quickly.
The average annual temperature in Assam is 23.8°C based on 45 years of historical climate data from 1981 to 2025. Temperatures vary significantly across the state's 23 districts, ranging from an average minimum of 7.5°C to an average maximum of 37.8°C.
Tinsukia is the hottest district in Assam, with an average maximum temperature of 41.4°C and an average annual temperature of 24.0°C. This makes it one of the warmest areas in the state throughout the year.
Kamrup is the coldest district in Assam, with an average minimum temperature of 5.7°C and an average annual temperature of 22.9°C. Winter temperatures in this district can drop significantly below the state average.
Assam receives an average of 5.3 mm/day of rainfall, which translates to approximately 1924 mm annually. Rainfall varies considerably across districts, with Cachar being the wettest at 6.8 mm/day and Karbi Anglong being the driest at 3.6 mm/day.
Cachar receives the highest rainfall in Assam, averaging 6.8 mm/day or approximately 2480 mm per year. This district experiences significantly more precipitation compared to the state average, making it ideal for water-intensive agriculture.
The average relative humidity in Assam is 73.2%. Humidity levels vary across the state, with Barpeta having the highest average humidity at 75.4% and Dibrugarh having the lowest at 69.7%. These variations affect local climate comfort and agricultural practices.
This comprehensive weather dataset covers all 23 districts in Assam. Each district's climate data has been collected from NASA POWER (Prediction of Worldwide Energy Resources) and includes 45 years of historical records from 1981 to 2025. The state-level statistics presented are calculated by averaging data across all districts.
All weather and climate data for Assam is sourced from NASA POWER (Prediction of Worldwide Energy Resources), which provides reliable meteorological data from NASA research. The data is based on the MERRA-2 Reanalysis with a spatial resolution of 0.5° x 0.625° and covers the period from 1981 to 2025. This ensures high-quality, scientifically validated climate information aggregated across all 23 districts in the state.
This comprehensive weather history can help farmers and agricultural planners in Assam make informed decisions about crop selection, planting schedules, and irrigation planning. The data shows that Cachar receives the most rainfall (6.8 mm/day), making it suitable for water-intensive crops, while Karbi Anglong receives less rainfall (3.6 mm/day) and may require more irrigation. Temperature variations across districts help determine suitable growing seasons for different crops. The 45-year dataset also helps identify long-term climate trends that may require adaptation in farming practices.
Assam shows significant climate diversity across its 23 districts. Temperature varies from 5.7°C in Kamrup to 41.4°C in Tinsukia. Rainfall patterns range from 3.6 mm/day in Karbi Anglong to 6.8 mm/day in Cachar. This diversity is influenced by factors such as altitude, proximity to water bodies, and geographical features, creating distinct microclimates within the state.
📚 Data Source & Methodology
All climate data is sourced from NASA POWER (Prediction of Worldwide Energy Resources), a NASA project providing satellite-derived meteorological data used globally by researchers and agricultural planners. State-level figures are calculated by averaging data across all 23 districts in Assam.