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Today's Observations

          CoCoRaHS in Castle Valley. Photo Credit: Tom Haraden

About CoCoRaHS
Read the Brochure
How do I Join
What Do I Need
Utah Coordinators
Utah Regions
Help and FAQ

Online Training: Rain | Snow (slideshow | video)

Water Rangers in the News
To listen to a piece from Utah Public Radio about CoCoRaHS click

How Do I Join

Becoming an observer is simple.
  1. Click on "Join CoCoRaHS" on the left and complete the online application form.
  2. Once you sign up, you will receive a login and password.
  3. Acquire and install one of our rain gauges see below.
  4. Begin making daily observations. It's that simple! With your login and password, you'll be able to record your observations through the internet in just seconds, and they'll show up on our daily maps.
Do I have to make a measurement every day
No, absolutely not.

That said, we are looking for consistent measurements, and every day is better. But we do understand that people go on vacation, get sick, or just plain forget. The Water Ranger police will not come knocking on your door if you miss a day. Promise.

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What Do I Need

Well... You need a rain gauge! And a good place to put it.
Because CoCoRaHS is not only statewide, but national, we strongly prefer everyone to have the same kind of gauge, to better allow comparison of measurements.

We use a 4"-diameter plexiglass gauge that looks like this:

You can purchase a rain gauge from either of these two companies...

WeatherYourWay.com or AmbientWeather.com These are the same gauges, but at $25 they cost a bit more shipping and profit, I imagine.

Utah Regions

To contact the state coordinator for your region, identify your region on the map below, and then visit the Utah Coordinators Page.

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For more weather and climate information, visit the Utah Climate Center.