From the National Agricultural Statistics Service
Western Washington saw a cold snap in the first half of the month. There was less precipitation than normal, but most fields were wet and oversaturated with the snowmelt.
In central Washington, there was significant rain and snow. Snow was still on the ground, but temperatures rose above freezing daily, and the snow settled. Crops had good cover. The ground under the snow was not frozen, so moisture soaked through and should be helpful to crops. In Yakima County, there was precipitation in both snow and rain. Patches of snow were still left in hop yards, orchards, and corn fields. There was a cold stretch during the middle of the month, but during the warmer days, there was pruning in stone fruits.
In east central Washington, crop conditions were normal for this time of year. Snow levels receded with the recent warmer weather and rain. Northeastern Washington had cold weather in mid-January with little snow to cover crops. Calving was on the way in some areas. In southeast Washington, January started with record low temperatures, which potentially caused some livestock deaths. Snowpack in the mountains was below normal.