The Daily Parker

Politics, Weather, Photography, and the Dog

Gloomier spring than we thought

I mentioned a couple days ago that we haven't seen the sun much this spring. Today the sun came out for only the second time in the last 43 days:

The National Weather Service categorized just one day in April as “clear and sunny,” said Kevin Donofrio, science and operations officer. NBC 5 meteorologist Paul Deanno said Tuesday just one of the past 42 days saw significant sunshine. That report was followed by another dark and soggy day.

Donofrio said this April saw 39.6 mm more rain than usual. Paul Walker, senior metrologist with AccuWeather, said there were only six days without rain last month. 

Chicago was also 1.5°C cooler than an average April, Walker said. Last year, it was 1.2°C warmer.

The gloom covered all of Illinois, in fact:

It’s not a stretch to say that most in Illinois are ready for warm weather by the time we hit mid-April. However, this year did not deliver as April temperatures were persistently well below normal. ... [M]ost days this past month were 3°C to 6°C colder than normal. Only 8 out of 30 April days in Galesburg were warmer than normal, and most by only a few degrees.

As a result of the colder weather, most of the state experienced below freezing temperatures as late as mid-April, and frost was reported as far south as the St. Louis Metro East on April 26.

Given how persistently rainy last month was, we best have a plethora of May flowers. For most places, the total amount of April precipitation was not excessive, and some areas were drier than normal. However, precipitation frequency last month was unusually high as most places recorded 12+ days with some measurable precipitation. Macomb had 22 days with measurable precipitation last month, Aurora had 20, Champaign had 19, and Cairo had 18. The 22 wet days in Macomb last month set a new record for April, which was the 2nd highest frequency of any month on record, only less than the 23 wet days in Macomb in October 2009. Frequent, small precipitation meant most places only had 2 to 2.5 days between precipitation events last month, which stymied fieldwork statewide.

Fortunately, the forecast calls for warmer and sunnier weather next week, with sun and 29°C forecast for Tuesday.

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