# Snow Day Calculator

> Predicts snow day probability for schools using zip code and weather data. (iPhone/iPad app by David Sukhin.)

- Source: https://appshunter.io/ios/app/snow-day-calculator/id480688850 (this page in markdown: same URL + `.md`)
- Developer: [David Sukhin](https://appshunter.io/developer/480688853)
- Category: Weather, Education
- Price: $0.99 with in-app purchases
- Rating: 3.90/5 from 351 App Store ratings · 72 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.1 · 7 MB
- Languages: American English
- Released: 2011-12-05
- Data updated: 2026-09-07
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/snow-day-calculator/id480688850/reviews.md

## What is Snow Day Calculator?

Snow Day Calculator App!

Get the prediction power of the Snow Day Calculator in an App. Using just your zip code, David Sukhin's famous Snow Day Calculator will predict the chance of a snow day.

The Snow Day Calculator automatically pulls weather information from the National Weather Service and uses a carefully developed formula to give super accurate snow day predictions for your school! Predictions always use the most recent weather information and new predictions become available at noon each day.

You can also sign up for Snow Day Notifications for up to three days in advance and join your school group for even more accurate predictions!

What's your chance for a snow day tomorrow?



Some optional features of the app may occasionally use location services which may affect your battery life. You have the option to enable and disable these features at any time.

## Key features

- Zip code based snow day prediction
- Real-time weather data integration
- Daily noon predictions
- Advance snow day notifications
- School group predictions

## Pricing and in-app purchases

Base price: $0.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Texts One Month | $0.99 | one-time |
| Texts One Year | $1.99 | one-time |
| Texts Two Years | $2.99 | one-time |


## Chart rankings

- #55 in Top Paid · Weather (US App Store)

## What do users think of Snow Day Calculator?

Overall sentiment: mixed

**Pros**

- 😊 Fun and entertaining to use
- ✅ Accurate predictions when percentages are high
- 📱 Easy and intuitive interface
- ⚡ Lightweight app with minimal storage
- 🎯 Reliable for years of consistent use
- 🌨️ Better than weather forecasters for snow days
- 💰 Affordable one-time purchase

**Cons**

- ❌ Frequently inaccurate predictions
- 🐛 App crashes on startup
- 🔌 Server overload during peak usage
- 💳 Misleading pricing and hidden charges
- 📍 Limited functionality outside United States
- ⏰ Only 2-day forecast in paid version
- 🚫 Text alert feature doesn't work reliably
- 📱 Not optimized for newer iPhone models
- 🔧 Slow developer response to issues
- ⚠️ Predictions decrease dramatically throughout day

**Commonly reported bugs**

- App crashes immediately upon opening
- Black screen on startup
- Server connection errors during storms
- Text alerts not sending or requiring repeated purchases
- App incompatible with iPhone 5 resolution
- App not working in Canada despite advertised support
- Glitchy behavior and unresponsive interface
- Fails to load for certain phone carriers

**Most requested features**

- Home screen widget with current percentage
- Extended forecast (3-4 days in advance)
- Better optimization for iPhone X, XS, XR models
- Proper Canada support and functionality
- Restore purchases feature
- Improved server capacity for peak times

## Recent user reviews (10 of 72)

All indexed reviews: https://appshunter.io/ios/app/snow-day-calculator/id480688850/reviews.md

### 1/5 — Horrible

*2026-01-23, version 4.5*

Not accurate at all
And good luck canceling this app

### 5/5 — love it

*2026-01-15, version 4.5*

i love it so much!

### 5/5 — Fun to Use

*2024-12-21*

It is always nice to see what the possibilities for the next day may be.  Even teachers like snow days!

### 4/5 — Fun

*2024-12-06*

Fun app. Paid for early detection and never received them. So don’t pay the extra.

### 5/5 — Awesome! One recommendation though.

*2024-12-05*

I love the app so far but I think it would be cool if they added a widget for your home
Page with the current percent.

### 5/5 — Fun!

*2024-12-02*

Of course this isn’t replacing local decisions for snow days or school cancellations. We’ve had fun watching how close it comes to being correct, and I will say that every time it calculates 99%, we’ve had a snow day. 😂❄️

### 1/5 — 99 cents turned into 8.60

*2024-02-06*

was advertised as 99cents and got charged $8.60 for a app that barely works 😡

### 5/5 — Epical, not much snow days happen though

*2024-01-28*

Am I honest, honest opinion I just use this app to know if there is ever a snow day because snow days are very rare in my city or town idk if the population matches to any of them but it’s 384,165. Amazing app though. I first saw snow in the month of January 2024. I had to go up near the mountains but halfway there the road was iced, the snow was Cold but it was very good finally getting to throw some snowballs around

### 1/5 — How is this calculated?

*2024-01-11, version 4.5*

So bizarre to me. How is the likelihood calculated? Def not accurate by any means.

### 5/5 — Using it for years

*2023-03-01*

I’ve been using this website for years and I finally downloaded the app.  It has never steered me wrong.  Well worth the download!

## Frequently asked questions about Snow Day Calculator

### How does the Snow Day Calculator work?

The app uses your zip code to access real-time weather information from the National Weather Service. It then applies a carefully developed formula to calculate the probability of a snow day for your school. New predictions are available daily at noon.

### What are the key features of the app?

Key features include zip code-based snow day predictions, integration with the National Weather Service for up-to-date weather data, daily prediction updates, advance snow day notifications (up to three days), and the ability to join school groups for more accurate forecasts.

### Is the Snow Day Calculator free to use?

The app is free to download and use with its core prediction features. There are optional features available, which may involve in-app purchases. Users can choose which features to enable.

### What devices is the Snow Day Calculator compatible with?

The description does not explicitly state device compatibility. However, as a mobile application, it is designed for smartphones and tablets. Users can typically find compatibility details on the app store page.

### Can I get notified about potential snow days?

Yes, you can sign up for Snow Day Notifications, which can alert you up to three days in advance about the chance of a snow day. This feature helps you plan ahead for potential school closures.

## Version history (last 5 releases)

### 4.5 — 2020-12-15

New Snow Day Calculator App!
- Polished Design
- Refined Location Features

### 4.0 — 2018-02-21

New Snow Day Calculator App!
 - Modernized Design
 - More Location Features
 - Better Support for Canadian Predictions

### 3.0 — 2015-12-11

New Snow Day Calculator App!
 - Optimized for New Devices
 - New Location Features

### 2.0 — 2013-12-15

New Snow Day Calculator App!
 - Easy Text Notification Signup
 - Join your school group for more accurate predictions

### 1.0 — 2011-12-05

No release notes.

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## Related topics

[snow day calculator](https://appshunter.io/ios/topics/snow-day-calculator) · [snow day](https://appshunter.io/ios/topics/snow-day) · [snow day predictor weathercan](https://appshunter.io/ios/topics/snow-day-predictor-weathercan) · [snow day predictor](https://appshunter.io/ios/topics/snow-day-predictor)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-07.*