Message of the Day
Message of the Day:  CoCoRaHS Blog | Go to end of message

Autumn Leaves . . . time for a change of color!

Autumn officially begins this weekend and it’s that time of year again when the leaves in many parts of the country begin to change color. Have you ever wondered “Why do the leaves change color?”

The US Forest Service has put together a nice web site explaining just that at: “Forest Service Leaves”.

Or have you ever wondered “Does precipitation play a role in leaf color?”

“The amount and brilliance of the colors that develop in any particular autumn season are related to weather conditions that occur before and during the time the chlorophyll in the leaves is dwindling,” says University of Kentucky agricultural meteorologist Tom Priddy. “Temperature and moisture are the main influences. …The countless combinations of these two highly variable factors assure that no two autumns can be exactly alike.”

And if you are just trying to find out where the leaves are turning during a certain week or in a certain place in the country, the Foliage Report Network: “The Foliage Network” keeps track of leaf colors in the midwestern and eastern half of the country and the US Forest Service keeps you advised on fall colors throughout the US at: “Fall Colors”.

More info the study of periodic plant and animal life cycle events that are influenced by environmental changes, especially seasonal variations in temperature and precipitation driven by weather and climate visit the National Phenology Network Web site at: “National Phenology Network”.

2015 CoCoRaHS Rain Gauge Calendars now on sale! Order one today

The long awaited 2015 CoCoRaHS Rain Gauge calendars are now on sale! We hope that you will consider purchasing one today. Our artistic, bookstore quality calendar features over fifty photos by fellow precipitation observers displaying their gauges in a variety of settings. It truly is a work of art that you won’t find anywhere else. Click here for a closer look: VIEW THE CALENDAR

The last time we offered our calendar in 2011 an observer wrote: “"Thank you so much for the CoCoRaHS calendar. It arrived well packed. It is superb! Better than I expected. The company you all chose to print this up did a fabulous job. I know that once my family sees it, they will all want a copy!" Believe it or not, the 2015 version is our best yet!

The calendars sell at a reasonable price with a portion of each purchase going toward the CoCoRaHS Network. Just click on the banner at the top of the page or click ORDER A CALENDAR to place your order today. We hope you’ll enjoy the calendar throughout the year ahead.

Thanks for supporting the CoCoRaHS Network!


The current "CoCoRaHS Message of the Day" automatically displays on your screen 
after you enter your daily observation on the data screen.