Climate Data for Design

I am looking into the ways to get climate data to inform my design for a home in Sullivan County, NY.

One simple source is this Bing search which yields an interactive chart:

Parksville, New York historical weather - Bing

Phius provides climate data on their website according to a specific format to Phius members. From their website:

PHIUS+ Climate Data Sets are generated using the DRY data method within the software Meteonorm for use in WUFI Passive and PHPP for PHIUS+ design and certification purposes. Due to Meteonorm licensing restrictions, we are unfortunately no longer able to offer climate data sets as a free download.

WUFI Passive is the software that is required by Phius to certify Passive Houses. A version that allows you to analyze your project for certification is now available for free. Phius has WUFI Passive Tutorials as well. It uses climate data to perform analysis of a design's energy performance.

Note that access to the map of existing Phius datasets is available without membership and has some basic information available on it. See below

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Phius allows you to use a dataset for a location if it is within 50 miles of your site and the difference in elevation is less than 300-400 ft. My site was within 50 miles of a dataset location, but the elevation difference was 800 ft. Through Phius I was able to purchase a custom dataset for my site for $75.

Solar Charts

I really like sunearthtools.com for their solar chart tool. This is the direct link