Light rain fell over the southeast one-third of Iowa on Tuesday (April 23) with some snow also reported. Very light rain fell nearly statewide on Wednesday (April 24). A welcome period of dry weather began on Thursday and continued into Sunday (April 28) with the exception of a few showers in extreme southeast Iowa on Saturday.
Statewide average precipitation in April 2013 sets new record for April in Iowa
Weekly rain totals varied from only 0.04 inches at Dubuque to 1.84 inches at Underwood in Pottawattamie County. The statewide average precipitation was 0.53 inches while normal for the week is 0.94 inches. The rain pushed the statewide average precipitation for the month to an April record of 6.52 inches (old record among 141 years of data was 6.25 inches in 1999). Monthly rain totals have been more than double usual April totals over parts of eastern Iowa but were only near normal over portions of the northwest and southwest corners of the state.
Meanwhile temperatures over the past week were well below normal through Thursday and finally climbed to well above normal over northwest Iowa by Sunday (April 28). Temperature extremes for the week varied from a Wednesday morning low of 21 degrees at Sibley to a Sunday afternoon high of 86 degrees at Sioux City. Sunday's readings were the first 80's recorded in Iowa this year and marked the latest start to eighty degree weather in the state since 1993.
Temperatures for the week as a whole averaged 4.5 degrees below normal. Finally, soil temperatures warmed into the mid to upper 50's statewide as of Sunday (April 28) but will likely fall back into the forties when much cooler weather returns at mid-week.
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