Rainfall (a.k.a. early TV watching) is statistically linked to 40% increase in autism (2008)

Autism Prevalence and Precipitation Rates in California, Oregon, and Washington Counties

Michael Waldman, PhD; Sean Nicholson, PhD; Nodir Adilov, PhD; John Williams, MD, MBA

Arch Pediatr Adolesc Med. 2008;162(11):1026-1034.

rainfall (early TV) linked to 40% increase in autism: summary abstract

(Full text available at that site)