Review
Very good app!!!!
You will love it if you are a weather fan
I love how simple the app is !
Very useful
Friendly
I love how this is different from IOS default weather apps
I like the story about weather!
Free
In-App Purchases
About
This app provides historical weather context, comparing current conditions to over 30 years of climate data. It helps users understand if today's temperature or rainfall is normal, using visualizations and global station access.
✓Historical weather context
✓30+ years of climate data
✓Global METAR/ASOS station access
✓Climate Stripes visualizations
✓Heatmaps and Box Plots
✓El Nino/La Nina year overlays
✓Imperial/Metric unit toggle
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What's New in Eranorms
3.1.0
August 19, 2026
Eranorms 3.1.0 • Performance improvements and data visualization enhancements. • Station search and metric source provenance updates.
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In-App Purchases
$19.99
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FAQ
What is Eranorms?
Eranorms provides historical context for current weather conditions by comparing them against over 30 years of climate data. It uses visualizations to show if today's temperature and rainfall are normal.
What kind of data does Eranorms use?
Eranorms accesses high-quality data from thousands of METAR and ASOS stations globally, sourced from the Iowa Environmental Mesonet (IEM) and NOAA/CPC.
What visualizations are available in Eranorms?
Eranorms offers professional visualizations like Climate Stripes to show warming trends, Heatmaps for seasonal anomalies, and Box Plots to understand statistical spreads of temperature and precipitation.
Can I compare current weather to specific past years in Eranorms?
Yes, Eranorms allows you to compare the current year's weather data against any specific past year, providing direct historical comparisons.
Does Eranorms have ads?
No, Eranorms does not contain advertisements. It is a free app with optional in-app purchases.
What devices does Eranorms support?
Eranorms is available on iPhone, iPad, and iPod, indicated by its support for these devices.
How often is Eranorms updated?
The latest version of Eranorms, 2.0.2, was released on May 5, 2026, suggesting regular updates to improve functionality and data.
What is the age rating for Eranorms?
Eranorms has an age rating of 4+, making it suitable for a wide range of users interested in weather data.
