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Energy & Comfort Lab

Degree Days Calculator.

High-fidelity analysis of Adaptive Thermal Comfort (IMAC) and Energy Demand (HDD/CDD) to optimize natural ventilation and HVAC sizing per NBC 2016 Part 11.

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Delhi

Thermal Parameters

Base Temp18°C

ASHRAE Standard: ~18°C

Adaptive Comfort Potential

NBC 2016 Part 11 · IMAC Model

67%

8 of 12 months are within the comfort zone.

Heating Degree Days
195
Cooling Degree Days
2,842
Mean Annual Temp
25.2°C

Monthly Distribution (2025)

Jan
14°C
Feb
19°C
Mar
24°C
Apr
31°C
May
32°C
Jun
32°C
Jul
30°C
Aug
29°C
Sep
30°C
Oct
26°C
Nov
20°C
Dec
16°C
HDD (Heating Demand)
CDD (Cooling Demand)

Empirical Data Matrix

TimeAvg T (°C)HDDCDDSpan
Jan14.1123131
Feb19.1104028
Mar24.2019431
Apr31.3039930
May31.9043031
Jun32.0041930
Jul29.5035831
Aug28.7033131
Sep29.9035830
Oct26.0024931
Nov20.126430
Dec16.160031
Summation1952,842365

Degree Days Metrics represent the temporal deviation of outdoor temperatures against your defined base setpoint (18°C). They act as a highly dependable proxy for holistic building thermal demand.

Heating (HDD) accumulates temporal deficits below the threshold. Cooling (CDD) integrates surfeits. High local ratios dictate active plant sizing trajectories.

Data provided by Open-Meteo ERA5 / 11km Resolution Reanalysis Archive

What is Degree Day Calculator?

Calculate Heating Degree Days (HDD) and Cooling Degree Days (CDD) using historical weather data (Open-Meteo)

Technical Overview

Quantify the severity of local heating and cooling requirements. This tool calculates Heating Degree Days (HDD) and Cooling Degree Days (CDD) against custom base temperatures using high-resolution historical data.

Architectural Precision

NiyamX bridges the gap between design and regulation. Our algorithms are meticulously calibrated against NBC 2016 and international standards, ensuring your vision translates seamlessly into a compliant, buildable reality.

Scaling Beyond Just Degree Day Calculator

NIYAMX CO-PILOT
POWERED BY AI.

Our professional platform helps you generate code-compliant reports, verify thousands of municipal bylaws, and automate your entire AEC documentation workflow.

PLATFORM CAPABILITIES

Code Intelligence

Instant citations from NBC 2016 & State DCRs

Plan Verification

Automated checks for architectural layouts

Export Instruments

Professional PDF & DXF report generation

Version Control

Track code changes and city-wise updates

Trusted by 5,000+ Architects & Developers Across India

Mastering the Degree Day Calculator

A professional guide to leveraging the Degree Day Calculator for advanced technical analysis and regulatory verification.

1

Configure Project Parameters

Enter your specific site dimensions and project constraints. Our engine will real-time validate your inputs against technical thresholds.
2

Analyze Compliance Insights

Instantly visualize results on the pro-grade dashboard. Verify your design against statutory codes with mathematical certainty.
3

Generate Executive Report

Download a comprehensive CSV report, ready for client presentation or municipal submission.

Common Questions

1
How are degree days used in building design?

They help engineers estimate the annual energy required for heating or cooling a building by measuring how long and how far the outside temperature deviates from a comfortable base.

2
What is a typical base temperature?

A common base temperature for HDD is 18°C (65°F), representing the point below which heating is assumed to be required.
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