Detects strikes and reports how long you are in lightning delay.
Historical weather reporting
Accurate, on-site weather history for compliance and safety
Perry Weather’s Historical Reporting gives organizations a complete, defensible record of how weather impacted their operations, by combining raw environmental data with their weather safety policies.
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Record on-site weather data
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Time-stamped weather delays
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Automate weather reporting
TRUSTED BY THOUSANDS OF ORGANIZATIONS LARGE AND SMALL
Public weather data isn’t enough.
See the true history of weather’s impact.
See how historical reporting works
Two powerful historical weather tools in one system
Policy Activity Reporting
See when weather policies are activated — and for how long.
The moment conditions cross your custom weather thresholds, Perry Weather captures the data behind it, giving your team a reliable, timestamped record of how weather impacted your operations.
Track hours in lightning delay
Measure exactly how long lightning stayed within your safety radius, giving you a clear record of paused activities, delayed operations, and weather-driven downtime.
Monitor exact time in each WBGT zone
See how many hours heat remained WBGT zone to support state compliance and understand heat-related impacts on your schedule.
See when rainfall exceeded your thresholds
Identify every instance where rainfall intensity exceeded your threshold, helping you explain closures, protect your fields or jobsite, and document weather-related interruptions.
Log wind gusts above custom limits
Capture each activation where wind surpassed your operational limit, critical for crane work, lifts, outdoor setups, or any activity sensitive to unsafe wind speeds.
Measure when AQI exceeded safe levels
Calculate how long air quality remained above your acceptable level, documenting environmental exposure and supporting health-based decisions for staff and participants.
Weather Conditions Report
The exact environmental values at your location
Perry Weather captures and stores on-site environmental readings around the clock, giving you a precise record of what the weather was at any moment—no estimates, no airport data, no guesswork.
See what the weather was at any point in time
View real readings including temperature, humidity, wind speed and gusts, WBGT, heat index, dew point, AQI, and more.
Make it a recurring report
Automatically send this report on a daily, weekly, or monthly schedule to the users or groups who need consistent visibility.
Customizable time ranges & intervals
Select any date range and choose 15-, 30-, 60-minute, or 24-hour intervals. Filter by operating hours to see only the conditions that mattered to your organization.
Export historical weather data for these variables
Customer stories
What our customers say about us
“Perry Weather allows us to leverage extremely site-specific information… and make better decisions.”
“Having a Perry Weather on a project of this size, 161 acres plus or minus, it’s taking the workload off me and helping keep everyone safe on the site here at Project Red. People can hear the message or the siren and do what they need to do to stay safe.”
“Perry Weather wins hands down over the competition. It has alerted us to every dangerous situation.”
Frequently Asked Questions
What can I use Historical Reporting for?
Use historical reporting to analyze past weather events with precise, timestamped data. You can view lightning delays, WBGT and heat-stress levels, wind or rain stoppages, and many other detailed environmental conditions.
Historical Reporting helps you understand how onsite weather impacted operations over time, document policy compliance, support claims or investigations, and make data-driven decisions using accurate historical weather records.
Where does the weather data come from?
Lightning data is provided by the nation’s most reliable lightning detection network, the National Lightning Detection Network (NLDN).
Perry Weather uses that data to determine your organization is under lightning delay. The system allows you to export historical data like how long your team was in lightning delay or how many times you entered into lightning delay.
All other weather data comes directly from your onsite Perry Weather station for true hyperlocal accuracy.
What’s the difference between Policy Activity Reporting and Weather Conditions Reports?
Policy Activity Reporting shows when weather policies triggered and for how long.
Weather Conditions Reports show the actual environmental values (temp, humidity, WBGT, wind, etc.) at set intervals over time.
How often is data recorded?
Weather Conditions Reports can be exported in 15-, 30-, 60-minute, or 24-hour intervals depending on your needs.
Can I filter reports to certain hours of the day?
Yes. You can limit reports to business or operating hours, such as 8 AM–5 PM.
Can multiple locations be included in one report?
Yes. You can select one location or any combination of locations in your organization.
Can I automate reports for my team?
Yes. Any report can be made recurring and delivered daily, weekly, or monthly to individuals or full user groups.
Which weather variables can I export?
You can export temperature, humidity, WBGT, heat index, wind speed/gusts, precipitation, AQI (PM2.5, PM10, ozone), dew point, evapotranspiration, wind chill, and more.