Climate normals are 30-year averages of weather data that provide a baseline to compare current weather. NOAA recently updated this average to the most recent 3 decades - what does this mean for our maps of spring?
Normals are long-term average climate products - they exist so we can compare today's weather to the long term average - for example, to find out if this January is colder than "normal." Since temperatures have been rising decade by decade, the period of comparison matters in showing the difference between current conditions and “normal.”
The USA National Phenology Network laments the passing of Marjorie Helen Schwartz, a long-time lilac observer and mother of USA-NPN co-founder Mark D. Schwartz. Marjorie died peacefully on December 21, 2021 at the age of 93. She lived all her life in the Thumb of Michigan’s Lower Peninsula, an area shaped like that digit on a mitten which juts into Lake Huron. After she married Mark’s father, Donald J. Schwartz, in 1954, they lived in Gagetown, a small village in Tuscola County, where sugar refining, ethanol processing, and growing grains and beans dominate the local economy.
Nature’s Notebook observations are key to interpreting information collected by satellites and aircraft