SILO

SILO is an online database of about 125 years of continuous daily weather records.

Read about our selection process for including tools on Climate Kelpie

 

Who this tool is for

All farmers, extension officers and decision-making tool developers throughout Australia.

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Questions this tool answers

•What has been the daily rainfall, minimum and maximum temperatures, radiation, evaporation and vapour pressure to the 5-km scale over the past 120 years or since records began?
•How can I use this weather data in my modelling
  • What has been the daily rainfall, minimum and maximum temperatures, radiation, evaporation, sea level pressure and vapour pressure to the 5-km scale over the past 125 years or since records began?
  • How variable is the climate at my location?
  • How can I use this weather data in my modelling?

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What this tool does

SILO is a database of about 125 years of continuous daily weather records for Australia.

It includes:

  • rainfall
  • air temperatures (minimum and maximum)
  • radiation
  • evaporation
  • vapour pressure
  • sea level pressure

The records are mainly based on observed data, with interpolation where there are data gaps.

SILO data is:

  • up-to-date (near real time)
  • in formats useful for farmers, researchers and policy-makers
  • a data source for computer models of processes including: seasonal climate; environmental forecasting; and crops, pastures and water

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Inputs

SILO datasets are constructed from climate data collected by the Bureau of Meteorology.

It interpolates the data into a regular 5-km grid resulting in about 290,000 grid squares over Australia.

You enter a location (BOM weather station, or latitude and longitude) and a date range. Then you select the data format you want (e.g. rainfall only, Rainman format), enter your subscriber details and the dataset is then delivered to you.

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Outputs

When you identify the data you want, you can also select from a list of available formats. For example, there are formats suitable for input to a range of tools, such as:

There are 2 types of data you can download:

  • Patched data is available for about 4800 locations. It consists of observations, plus interpolated data where observed data is missing.
  • Data drill data is available at any of the 290,000 grid cells. It consists entirely of interpolated data.

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Reliability

SILO provides excellent data. Missing records are generally interpolated (and are identified as such).

The data does not include projections or analysis for a changing climate. It is simply a reference dataset of about 125 years of records.

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History

SILO was developed by the Bureau of Meteorology and the Queensland Government. It was launched in 1997.

Delivery of data to subscribers over the web has rapidly expanded, with about 8000 datasets downloaded each month. This is in addition to many more offline deliveries of data.

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Support available

The SILO team is available on (07) 3170 5513 (for historical climate data) and (07) 3170 5528 (for climate projections data). You can use this web form as well.

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Where to get it

Visit the How to Obtain Data section of the SILO website. You can choose between online, URL web service, DVD or hard-disk, or file transfer protocol methods to get data.

For large area or bulk data requests, a form [PDF 593 kb] is available at the bottom of the SILO website.

Patched data is free, and available from SILO or the Queensland Government Open Data portal. Data drill data is not free; you need a subscription to access this data.

You can also choose to use and analyse SILO data with the free CliMate tool.

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Cost

It is free to register to access climate data.

Patched data for Queensland is free to download. You need a subscription to download other types of data.

Prices for data supplied on DVD, on hard-disk drive, by email or via file transfer protocol begin at about $110.

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