At present, we must expect out 1956 weather to be an average of that of the past 50 to 60 years. Some day we may have reliable seasonal or annual forecasts. But right now, even the Weather Bureau 30-day outlook is helpful only in pointing out major trends for rather large areas- one or more states.
Barger, Gerald L.
"Iowa Weather - 1956,"
Iowa Farm Science: Vol. 10
, Article 5.
Available at: https://lib.dr.iastate.edu/farmscience/vol10/iss7/5