For Personal-Injury & Auto Accident Attorneys

What was the weather at the time of the crash? Get a cited answer.

Pull a source-cited record of the rain, fog, darkness and low-sun glare at the exact crash location and minute, in the location's own local time, to build or rebut causation and comparative fault early.

Free tier: 5 full reports a month, no credit card.

Conditions.Site generates a clear, cited report of the historical weather, sun position and moon position for any past date and time, down to the minute, at any address, intersection or GPS point. For a car-accident case, that means a defensible record of what the driver actually faced: the rain, the visibility, the darkness, whether the sun sat low in the driver's eyes. Every value is traced back to the public source it came from.

The problem

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

The complaint says it was raining. Can you prove it?

A client's account of the weather is not evidence. You need an independent, cited record of precipitation, visibility and cloud cover at that place and minute before you frame causation or comparative fault.

Retaining an expert too early is expensive

A forensic meteorologist costs real money and takes time. On many files you first need a fast read on whether a conditions theory is worth pursuing at all, not a full retainer.

"The sun was in my eyes" is easy to claim, hard to check

Low-sun glare is a common defense and a common cause. Without the sun's altitude and azimuth at the crash minute, and without knowing whether it cleared the horizon at that spot, you are arguing it blind.

Free weather sites don't cite anything

A screenshot from a consumer weather app names no source, no station and no method. It won't survive scrutiny in a demand letter or a deposition, and it may be for the wrong day or the wrong town.

How it's used

Test a rain-and-visibility theory in a demand letter

Before drafting, pull the precipitation, visibility and cloud cover for the intersection at the crash minute, cited to NOAA station data and reanalysis, so the demand rests on a record rather than a recollection.

Rebut a low-sun-glare defense

Check the sun's altitude and azimuth at the crash time and direction of travel. If the sun was already below the visible horizon, accounting for terrain and nearby buildings, the glare claim is far harder to support.

Establish it was dark for a nighttime pedestrian case

Get the exact sunset and twilight times at the crash location and date, so you can show the roadway was in darkness or civil twilight when the collision occurred.

Decide whether to retain a forensic meteorologist

Use the cited report as an early screen. If the conditions clearly support your theory, you retain the expert with confidence; if they don't, you've saved the fee and reframed the case.

What you get

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

Weather cross-checked across independent sources

Temperature, wind, precipitation, cloud cover, humidity, visibility and pressure are reconciled across ERA5 reanalysis, NOAA/NWS station records and personal weather stations, with every value cited to the source it came from.

Sun position and glare, terrain-aware

Altitude and azimuth at the exact minute, plus sunrise, sunset, solar noon and twilight. Local terrain and nearby buildings factor into whether the sun was above the visible horizon at the site.

A clean, cited PDF report

A one-page visual summary, a per-source comparison table, an hourly table and per-station detail. Every number is traceable to its origin, so the record travels with the file into a demand or a deposition.

Exact place, exact minute, local time

Search an address or intersection, or drop in GPS coordinates, and set the date and time to the minute in the location's own local time. Saved report history is kept under your account.

How it works

  1. Enter the crash location and minute

    Search the address or intersection, or paste GPS coordinates, then set the accident date and time to the minute. The report uses the location's own local time.

  2. We reconcile the public record

    Conditions.Site pulls historical weather, sun position and moon position from multiple independent public sources and cross-checks the values against each other.

  3. Download the cited PDF

    Get a paginated report with a visual summary, a per-source comparison table, an hourly table and per-station detail. Every value is traced back to where it came from.

Frequently asked questions

How do I find the exact weather at a specific address and time for a car accident case?
Enter the address, intersection or GPS coordinates and set the accident date and time to the minute. Conditions.Site returns the historical weather for that exact place and moment in the location's local time: precipitation, visibility, cloud cover, wind, temperature and more. It is reconciled across multiple independent public sources and cited to each one.
Can I cite the weather report in a personal-injury demand letter?
Yes. The report is built from public data sources: ERA5 reanalysis, NOAA/NWS station records and personal weather stations. Every value is traced back to the source it came from, with a per-source comparison table in the PDF. It is a modeled estimate assembled from cited public data for informational use, not a guarantee of actual conditions, but it gives you a well-sourced record to reference.
How can I prove it was raining at the time of the accident with sources?
Generate a report for the crash location and minute. It shows precipitation, cloud cover and visibility with each value cited to its source, and cross-checked across independent public sources so you can point to more than one record supporting the same finding.
What time did the sun set at the crash location on the accident date?
The report gives sunrise, sunset, solar noon and twilight times for the exact location and date, and factors local terrain and nearby buildings into whether the sun was above the visible horizon at the site. That lets you establish darkness, twilight or daylight at the crash minute.
Was the sun low enough to blind a driver at this intersection at 5pm?
The report gives the sun's altitude and azimuth at the exact time, so you can compare its position and direction against the driver's line of travel. It also accounts for terrain and nearby buildings in judging whether the sun had cleared the visible horizon. Conditions.Site does not yet report glare brightness or illuminance in footcandles (that is on the roadmap). The sun's position and horizon status still give you a defensible basis for the glare question.
Is this a substitute for a forensic meteorologist?
It is best used as a fast, source-cited early screen. Many attorneys run a report to test whether a conditions theory is worth pursuing before retaining a pricier expert. The reports are modeled estimates from cited public data for informational use, not legal opinions or a promise of admissibility.

Answer the conditions question before you retain the expert

Pull a source-cited report of the weather, sun and darkness at the exact crash location and minute. Then decide your causation and comparative-fault theory from a record, not a recollection. Start free with 5 reports a month, no credit card.

Create a Free Report

Related uses

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