The nationally averaged minimum temperature (overnight lows) during 2020 was 42.4☏, 2.4☏ above average and also ranked sixth warmest in the 126-year record. Portions of the lower Mississippi Valley had daytime temperatures that were below average during 2020. Much of the western half and eastern third of the CONUS experienced above-average maximum temperatures for the year with Arizona ranking warmest on record. The nationally averaged maximum temperature (daytime highs) was above average for 2020 at 66.3☏, 2.3☏ above average, ranking as sixth warmest in the 126-year record. There were no areas of below-average annual temperatures observed across the Lower 48 during 2020. Ten states across the Southwest, Southeast and East Coast had their second-warmest year on record.

experienced above-average temperatures during 2020. The five warmest years on record have all occurred since 2012. This ranked as the fifth-warmest year in the 126-year record. was 54.4☏, 2.4☏ above the 20 th century average. Last year, between Jand J(2018-19 season), the county measured 18.87 total inches.Ītascadero’s water company has a recorded historic seasonal average of 17.53 inches, with a total of 24.72 during the 2018-19 season and an Atascadero rainfall record of 29.8 inches in 2016-2017.įive or six inches in annual measurement is a significant difference, which can be explained by elevation or other geological factors.Based on preliminary analysis, the average annual temperature for the contiguous U.S. The two locations record very different measurements, with AMWC measuring a consistently higher volume.įor the past 20 years, the County of SLO has measured an average of 12.56 inches of rainfall in Atascadero, with a high of 24.95 inches. On the heels of a short but severe fire season, statewide rainstorms complicated Thanksgiving travel but brought more than two inches of rain to Atascadero in just a few days of downpour.Īs of Sunday, December 1, 2019, the County of San Luis Obispo currently records a seasonal total of 1.97 inches with the National Oceanic and Atmospheric Association calling for rain through Wednesday.Īverage rainfall is impacted each year by the volume of rain received, and by the location at which it is collected - the Atascadero Mutual Water Company collects measurements at 6575 Sycamore at the confluence of Atascadero Creek and Salinas River, and the County of San Luis Obispo collects measurements from a source on private property at the northeast of Heilmann Regional Park. Since then, all of California has seen healthy seasonal rainfall, with reservoirs at or near capacity, and signs of drought all but a memory. Through December, strong rainfall of 4.96″ brought levels up to 6.51″ by the end of 2019.Īs with the rest of California, Atascadero has seen a rise in rainfall totals since the end of the last drought cycle - which was so extreme, it dried up the entire Atascadero Lake by 2015, before record rainfall replenished our local jewel. The upcoming storm, expected Saturday evening, is projected to bring almost two inches over four days. Currently, seasonal totals are reported as 11.21 inched by the Atascadero Mutual Water Company.

The annual rainfall average for Atascadero is 17.53 inches, and the 2019-2020 season is inching that direction. March rainfall brought 3.92″ of much-needed rain to Atascadero. Read Atascadero Annual Rainfall Seasons report here.

Seasonal precipitation totals