By Alex Sosnowski, AccuWeather senior meteorologist
May 29,2017, 12:56:03PM,EDT
May has turned out be a wet month over much of the eastern United States, but are there any signs of prolonged sunny days and summer heat in store for June?
"The pattern of frequent rainfall is likely to continue for the first 10 days of June and could extend into the second 10 days of the month," according to AccuWeather Long-Range Meteorologist Evan Duffey.
"An exception to the widespread wet weather will be the Upper Midwest, where more frequent dry days are likely, when compared to May," according to AccuWeather Senior Meteorologist Brett Anderson.
It will not rain every day in every location in the Northeast, the Ohio Valley and much of the interior South into the first half of June. However, it may be difficult for outdoor projects such as painting and concrete work to proceed in a timely manner.
People heading to Major League Baseball games on a regular basis should anticipate some sort of rain delay a couple of times a week.
"No doubt people who have problems with mold, mildew and damp basements will need to run the dehumidifier constantly over the next few weeks," Duffey said.
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Rainfall has surged to above average over a large part of the eastern U.S. during May. Many areas have received between one and a half and two times the normal rainfall this month. In some cases, the number of days with rain has outpaced days without rain.
Anywhere rainfall persists, the risk of flooding will increase. Where rainfall is the most intense and frequent, incidents of small stream and flash flooding can occur. People should anticipate travel delays during the wet pattern.
Opportunities for rain will continue in Florida and southeastern Georgia over the next couple of weeks. Much of the region is in need of more rain to help extinguish brush fires. There is a chance that tropical moisture comes into play toward the end of the first week of June.
The cloudy conditions have also held high temperatures to near to slightly below average many parts of the Northeast and the Midwest.
The combination of wet weather and lower temperatures has resulted in green lawns, filled reservoirs and poor drying conditions. Lawncutting operations may struggle to keep up.
"While there can be a very warm day here and there, long stretches of hot weather are unlikely into the middle of the month for much of the Northeast and Midwest," Duffey said.
Water in unheated pools and lakes may struggle to warm up significantly, due to the lack of hot, sunny days. Ocean water temperatures are less affected by sunshine and hot weather. Surf temperatures may run close to average as a result.
"The pattern of April-like rainfall with June temperatures should keep overall energy consumption close to average over the next few weeks," Duffey said.
Most areas in the corn belt of the central U.S. that are not experiencing lingering river flooding should receive a fair balance of heat and moisture to allow the crop to grow and mature, Duffey stated. However, some waters along the Mississippi and its major tributaries will remain above flood stage into the middle of June.
Somewhere during the second half of or the last part of June, the pattern is expected to dry out a bit and then warm up as a result.
"The AccuWeather long-range team still expect the summer of 2017 to finish with near- to slighty above-average temperatures and near- to slightly above-average rainfall in much of the eastern half of the U.S.," Duffey said.
Rocco Salvemini ·
Looks like the 90s we got last wk will be the last 1 we see for a while,
Paul Berger ·
We may not even see above 80 for a while in our area.
Jeff S Alterman ·
There
is the possibility of an 80°F day by Friday so don't count it out.
Generaly during the first part of June, one should not expect a lot of
80°F+ days. there will generally be a few though.
David Bowen ·
Whyi
s there no mention of the Jet Stream as the primary cause of the
lingering pattern? The ocillating pattern of the Jet is what creates
these troughs and the low pressure systems that then develop within
these troughs. Why has Accuweather removed the 3 day forecast of the Jet
Stream pattern? - David Bowen, Milton, MA
Neil Snelling ·
I
agree David. Probably the same reason why they also removed the surface
map, leaving it up to being a guessing game on lows, highs and frontal
zones and where they're located at any given moment.
John C. Hitchner Jr. ·
Wow,the second part of June? That's almost a month away 
:(
:(
Jeff S Alterman ·
Periods
of unsettled weather in the midwest and the northeast are common in
late May into the first part of June when the weather pattern is
chainging from the spring weather pattern to the summer weather pattern.
Jeff S Alterman ·
Bill
Ross In 1992, the weather pattern was atypical. Unsettled weather was
generally the rule throughout the northern United States from the
Rockies on east. Looking at the temperature records, New York had a
relatively cool summer that year. Minneapolis experienced temperature
substantially below normal that year. There were few days in Minneapolis
during the summer of 1992 where the hgih temperature reached or
exceeded 80°F. It is important to keep in mind that the first part of
June can often be unsettled, but not as unsettled as late May. Warm days
generally become more common and generally by mid-June or a bit later,
the weather becomes more consistent.
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