Conditions.Site
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For Construction Weather-Delay Claims

Weather-delay claim evidence, cited to the source

Build a time extension or compensable-delay claim on more than your daily log. Get a minute-specific record of the weather at your jobsite, cross-checked across independent public sources and cited per value.

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A weather-delay claim is stronger when the conditions are documented against sources other than the party making the claim. Conditions.Site generates a cited historical weather report for the exact jobsite and the exact past date and time work stopped, reconciling temperature, wind, gusts, precipitation and visibility across multiple independent public sources. Every number traces back to where it came from, so the record stands alongside your daily reports.

The problem

Where the usual sources come up short when you need to establish what the conditions were.

Your daily log is the only proof

Owners and sureties discount weather notes written by the contractor claiming the delay. Without independent corroboration, a reasonable rain or wind entry can be waved off as self-serving.

The nearest airport station is miles away

The official station that gets cited may sit ten miles from the site with different exposure. You need conditions tied to the jobsite coordinates, not a distant approximation.

Sources disagree and you cannot reconcile them

Reanalysis data, an NWS station and a nearby personal weather station can each report a different rainfall total. Pulling and comparing them by hand is slow and hard to defend.

You have to show the weather was abnormal

Establishing that a day exceeded what was reasonably anticipated means precise, dated numbers for that day and place, not a vague recollection that it 'rained hard.'

How it's used

Documenting a rain day for a time extension

Pull the hourly precipitation and wind at the site for the specific day work was suspended, with each value cited, to attach to your time-extension request.

Supporting an abnormal-weather claim

Report the temperature, wind, gusts and rainfall for each disputed date so you can show, day by day, what the recorded conditions were at the jobsite.

Crane and lift shutdowns from high wind

Retrieve wind speed, direction and gusts to the minute for the hours a lift was grounded, so a wind-related stoppage is backed by a cited, independently sourced record.

Responding to an owner or surety challenge

When a delay day is questioned, produce a clean report cross-checked across ERA5, NOAA/NWS and personal stations rather than re-arguing from your own log.

What you get

Every value is cross-checked across independent public sources and cited back to its origin.

Conditions reconciled across independent sources

Temperature, wind speed, direction and gusts, precipitation, cloud cover, humidity, visibility and pressure are drawn from ERA5 reanalysis (via Open-Meteo), NOAA/NWS station records and personal weather stations, then cross-checked against each other. Every value is cited to the source it came from.

Tied to your jobsite and the exact time

Search an address or intersection, or drop in GPS coordinates, and set the past date and time to the minute in the site's own local time. The report reflects the site, not a distant airport.

A clean, paginated cited PDF

Each report includes a one-page visual summary, a technical per-source comparison table, an hourly table and per-station detail. Every number is traceable to its origin.

Saved report history

Every report you generate is kept in your account, so a multi-day delay period stays organized and each disputed date is easy to pull back up.

How it works

  1. Set the jobsite and the moment

    Enter the site address, intersection or GPS coordinates, then choose the past date and time to the minute in the location's local time.

  2. Sources are pulled and cross-checked

    Conditions.Site assembles the historical weather from multiple independent public sources and compares them value by value.

  3. Generate the cited report

    Download a paginated PDF with a visual summary, per-source comparison, hourly table and per-station detail, every number cited to its source.

Frequently asked questions

How do I prove a weather delay in a construction claim?
Pair your daily reports with a cited record of the recorded conditions at the jobsite for the affected dates and times. Conditions.Site produces a report of temperature, wind, gusts, precipitation and visibility for the exact location and past moment, reconciled across ERA5, NOAA/NWS and personal weather stations, with every value cited to its source. It is a well-sourced record of modeled and observed public data for informational use, not a guarantee of exact conditions or a claim of legal admissibility.
What was the weather at my jobsite on the day work stopped?
Enter the site address or GPS coordinates and the past date and time, and the report shows temperature, wind speed and direction, gusts, precipitation, cloud cover, humidity, visibility and pressure for that moment in the site's local time, with an hourly table for the day. Each figure is cited to the source it was drawn from.
Can I get historical rainfall and wind data for a specific construction site?
Yes. You provide the site coordinates or address and the past date, and the report returns precipitation and wind, including gusts, for that location and time, cross-checked across multiple independent public sources so you are not relying on a single distant station.
How do I document that the weather was abnormal for a delay claim?
Generate a cited report for each disputed date and place so you have precise, dated figures for temperature, wind, gusts and rainfall. That concrete per-day record is what supports an argument that conditions exceeded what was reasonably anticipated. The report presents the data; the abnormality determination remains yours or your expert's.
How many days did weather stop work on my project?
Conditions.Site reports the conditions for the specific past dates and times you enter; it does not decide which days count as work stoppages. Generate a report for each candidate date and use the cited figures, alongside your schedule and daily logs, to support your own day count. Saved history keeps each date organized in your account.
Will this hold up as evidence?
The reports are modeled estimates assembled from cited public data, cross-checked across sources and fully traceable, which makes them well documented and defensible on their sourcing. They are provided for informational use. Conditions.Site does not promise legal admissibility or guarantee actual conditions, and whether a report is accepted is a matter for the relevant process and your counsel or expert.

Back your delay claim with a cited record

Generate a clear, cited report of the weather at your jobsite for any past date and time, with every value traced back to where it came from. Start free with 5 full reports a month, no credit card, or go unlimited for $19.99 a year.

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Related uses

Forensic Meteorologists → Insurance Claims → Storm-Damage Contractors →

Conditions.Site reports are modeled estimates assembled from cited public data sources for informational use; they are not a guarantee of actual conditions.