Why Is Historical Weather Data Important?


A record of prior weather conditions in a certain location is known as historical weather data. Temperature, rainfall, wind direction and speed, humidity, and barometric pressure are all meteorological variables that may be recorded.

Weather information from a week ago may be used to create historical weather data. However, it often spans years, decades, or even centuries. To a meteorologist, the longer and more thorough the record is, the more useful it is.

This historical weather data is important in the science of meteorology, not only for understanding present weather conditions but also for predicting future weather conditions and occurrences (weather forecasts).

However, collecting historical data is crucial for those who have our weather stations to boost the weather in our location.

We must first comprehend how meteorologists calculate and forecast weather conditions to comprehend its genuine worth.

When it comes to developing business predictions and predictive models, there are several elements that the company may manage, such as marketing, distribution, and promotions. External elements, such as economic swings and the weather, are also beyond the company’s control. How does the weather affect sales is a basic question that is often posed? The answer to this question depends on the sector, but many firms discover that variations in the weather do influence their sales, both favorably and adversely. 

Understanding Weather Impact on Business Performance

Understanding and measuring the impact of weather on sales may lead to a variety of results, including:

Predict Demand: Anticipate and manage fluctuations in product or service demand in a proactive main product or service demand fluctuations and how the weather might raise or reduce demand for your product/service ice helps you plan ahead of time to take advantage of anticipated situations due to known incoming weather conditions.

Adjust Business Forecasts: You can change and revise business projections and proactively manage stakeholder expectations by understanding how unexpected weather circumstances affect your organization favorably or adversely.

What Are Weather Data Sets Available?  

Several publicly accessible sites collect and aggregate historical weather data that may be utilized to track your company’s success. Weather stations continuously monitor and record weather conditions at various geographic and temporal granularity wind levels, wind precipitation, and other weather-related data points are data points and historical anticipated (short and long term) data, depending on data point’s requirements.

How Can Weather Data Be Used?

There are countless opportunities for leveraging historical weather data to determine its relevance to your company’s success now that such a large volume of numerical weather data is accessible.

It’s crucial to remember that absolute assessments of these data may be deceiving without context. Therefore, they should be assessed in relative terms based on usual weather patterns, and deviations from that norm should be identified. For example, if you sell motorbikes, a temperature of 60 degrees in July in Texas may depress sales, but the same 60 degre60-degree turn in April in Michigan may boost sales. It’s important to consider the context. Understanding these differences can aid you in identifying and quantifying the effects of severe weather.

It’s also a good idea to consider how you’ll interpret the outcomes of your investigation and make use of the data. For example, discover that wind speed influences your sales or service. It may be more useful to classify the impact of every given increment or decrement in absolute speed into groups of 1 mph, 2-5 mph, 5 – 10 mph, etc. This makes the forecasts simpler to understand, and your company will be better prepared to react when the weather forecast reaches any of these levels.

What Can You Learn from Weather Data?

You can make more educated business choices after understanding how various weather systems and circumstances may affect your organization. These choices may help you make better, wiser business predictions and proactively respond to unexpected and changing weather conditions. A huge automotive aftermarket business, for example, sought to forecast client flow so that they could properly plan their personnel. Including weather as a control data point improved the accuracy of their model and allowed them to better manage their manpower to meet predicted consumer demand.

Understanding how historical weather data has influenced your business improves your ability to make informed business forecasts & proactively manage against upcoming and unexpected changes and use marketing, pricing, and promotions to either capitalize on increased demand or minimize losses.

How Can Historical Air Quality Data Help Predict Pollution Patterns?

When assessing air quality, there are various factors to consider, many of which are much unexpected. Beijing’s authorities, for example, have been known to shut down coal factories and businesses and prevent the operation of a portion of the city’s millions of registered autos. Air pollution levels are inextricably tied to local meteorological conditions and pollution releases. When estimating local AQI levels, long-range pollution transmission, such as by strong winds, is a significant influencing factor quality so involves not just weather forecasting issues but also data and knowledge of the following: 

  • Local pollutant levels and emissions
  • Pollutant concentrations and emissions from far-flung locations 
  • Pollutant movements and transformations
  • Air pollution forecasting is internal and external due to the multiple factors in assessing air quality.

Related Blog: How can historical air quality data help predict pollution patterns?

Techniques for Predicting Air Quality

This prediction model exists in various forms, which are more sophisticated than weather forecasting systems. Computer simulations of how pollutants in the air disseminate are used in these models.

Forecasting the weather

The first step toward an accurate air quality prediction is to have a solid meteorological forecast. The three most common meteorological (weather) forecasting methods are techniques and three-dimensional (3-D) models.


The theory underlying climatology is that the past may be used to forecast the future. This approach is one-dimensional because it is based on the relationship between certain climatic conditions and pollution levels. Weather and pollutant pattern matching are typically included in this strategy. This approach has some drawbacks; thus, its best used in conjunction with other forecasting techniques.

Statistical methods

The relationship between air quality and weather patterns may be quantified using statistical methods.

CART (classification & regression tree) is a classification, and regression tree used to group data into distinct categories. The program is used to identify variables related to pollution levels in the environment. 

Regression analysis evaluates how variables are linked and are used to anticipate concentrations depending on weather conditions and associated pollution concentrations. Historical data sets are analyzed to find correlations between analyzed levels and meteorological data factors. Consequently, an equation has been developed that may be used to forecast future pollution levels.

Artificial neural networks use adaptive learning and pattern recognition algorithms. Computer-based algorithms are designed to emulate the pattern recognition skills of the human brain. This is debatably the finest tool for predicting pollution due to the multi-approach. The aforementioned statistical approaches have the drawback of assuming organizational practices that impact air quality are stable. Consequently, any large changes in emissions or climate (short- or long-term) would dramatically affect the accuracy of these approaches. More sophisticated methods are available that tries to compensate for these limitations. They’re known as three-dimensional models.

Three-dimensional (3-D) models

Simulations in three dimensions mathematically represent all major processes that influence pollution levels. To mimic the emission, movement, and modification of air pollution, three-dimensional models use a variety of sub-models, including:

  • Emissions model: This model replicates the global distribution of pollutants originating from natural and human sources.
  • Meteorological model: A trajectory model uses a 3-D meteorological model and emissions data to predict ambient pollution levels.
  • Chemical model: Examines the transformation of primary (emitted) pollution into secondary pollution to determine the pollutant’s impact.

Pollution forecasting technologies rapidly increase accuracy, and this trend will continue. Accurate and publicly available historical air quality data projections can raise public awareness and enable vulnerable groups to prepare and offer data for public health warnings. Academics and scientists may look forward to a bright future in this exciting new subject.