Snow Gauge In Wallkill, NY. Maybe Your BackYard?

The snow gauge is a DIY ultrasonic sensor all of it is running on a raspberry pi 2B.

Click HERE for the Snow Gauge.

What do you get with the Snow Gauge:

• Updates every 45 seconds
• View data from the past 15 days
• Downloadable CSV files for individual major snowstorms
• All for FREE!

If you want to build this in your BackYard here is what you will need:

1. Raspberry Pi of any type. If you get the Raspberry pi zero make sure you get one with header Pins
2. Waterproof Ultrasonic Module JSN-SR04T.
3. Waterproof case for your Raspberry Pi and Ultrasonic Module JSN-SR04. Its two parts one is waterproof the other part is not.
4. Breadboard Jumper Cables Female to Female.

I will include the software and instructions as a zip file to download

Software Setup

1. Clone/Download: Get the app.py and the templates/ directory onto your Raspberry Pi. By using
   wget https://ac-weather.com/wp-content/uploads/2025/11/SNOW-GUAGE-PI-AC-WEATHER.zip
2. Then unzip SNOW-GUAGE-PI-AC-WEATHER.zip -d /SNOW-GUAGE-PI-AC-WEATHER/ If unzip is not installed you can install it using sudo apt install unzip
4. Install Dependencies: pip3 install flask requests RPi.GPIO
6. Configure app.py: Open app.py and edit the configuration section at the top. This is REQUIRED.
   • GPIO_TRIG & GPIO_ECHO: Change these if you used different GPIO pins.
   • SENSOR_HEIGHT_INCHES: This is the most important setting. Mount your sensor in its final location (e.g., under the eaves of your house), then, with no snow on the ground, measure the exact distance from the sensor to the ground in inches. Enter that value here. The script calculates snow depth by (SENSOR_HEIGHT_INCHES - measured_distance).
   • STORM_PASSWORD: Change this to your own secret password.
   • WEEWX_ENABLED: Set to True or False.
   • WEEWX_URL: If WEEWX_ENABLED is True, set this to the URL of your WeeWX server.
8. Generate HTTPS Certificates (Required): This server uses HTTPS. You must generate a self-signed certificate and key file. Run this command in your project directory (the same one as app.py): openssl req -x509 -newkey rsa:4096 -nodes -keyout key.pem -out cert.pem -days 365
9. This will create key.pem and cert.pem. You can fill in the prompts with any information you like or just press Enter.
11. Run the Server: You must use sudo to grant the script access to the GPIO pins.
12. Run: sudo python3 app.py
14. Access the Dashboard: From any device on the same network (your phone, computer, etc.), open a web browser and go to: https://[YOUR_PI_IP_ADDRESS]:443 Note: Your browser will show a security warning (e.g., “Not Secure” or “Your connection is not private”) because the certificate is self-signed (not verified by a central authority). This is normal and expected. You will need to click “Advanced” and then “Proceed to Site”