Nationally, the U.S. ranked 13th coolest in the 1895-2017 climatology for the month of April. The Midwest U.S. was record cool and minimum temperature averages for the month were record cool for most of the U.S. Corn and Wheat Belt.
Dryness across southwest and southeast Australia Crop Areas continues based on the April 2018 soil moisture analysis provided by Bureau of Meteorology/Australia. We await potential beneficial winter rainfall to ease drought this winter season caused by a projected negative phase of the Indian Ocean Dipole. The -IOD pattern has yet to develop.
The cold season 2017-18 northern hemisphere snow cover was well above normal thanks to a snowy mid-to-late winter (and early spring) in North America particularly Alaska where one of the snowiest winter seasons on record was observed according to the Rutgers University Global Snow Laboratory.