Comfortable start to the week, but some heat coming

This certainly hasn’t been a July like last year. July 2013 was a very hot month. The temperature last July averaged 3.7 degrees above normal, making it not one of the top 5 hottest months on record. In Providence and Hartford a year ago, July would turn out the hottest month ever recorded.

This year is very different. I’ll give you some statistics for Boston, but you can assume they are similar for your area. So far Boston has reached 90F three times in July, last year through the 21st we had a dozen such days. The nights were also very warm last year with Boston not going below 70F for a dozen days in the first 3 weeks of the month, so far this July we’ve only experienced 5 such nights. You can see more data from the first three weeks of July below.

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This week is looking like a good week for vacationers with lots of sunshine, a couple of very warm days and the chance for a few showers. I don’t mind one day with rain when I am on vacation as it slows down the pace of the time. Of course, if the day it rains is the one your plans call for outdoor activities then it’s not so welcomed.
Yesterday, a steady wind off the ocean kept Boston from reaching the 80s. Highs remained in the lower 70s at the coast and upper 70s inland. Today we will see more in the way of sunshine, but still it won’t be very hot. Highs will range from 75-80 coastal plain to inland.
High pressure pushes off the coast tonight and the winds will flip around to the south and southwest. This is going to bring and increase in the heat and the humidity for tomorrow and especially on Wednesday.
Tonight will be the last really comfortable night for a few days with readings heading back into the 60s. If you want to conserve energy, leave the windows open this evening, but close them first thing Tuesday morning. The cool air will stay in the house for the day and your air conditioning won’t have to work so hard.
Highs tomorrow and Wednesday will reach the upper 80s north of Cape Code and the Islands, with cooler 70s prevalent there. Boston could hit 90F on Wednesday for a few hours, but there’s also a chance we stay just under that mark. If we don’t reach 90F Wednesday, there is a good chance we won’t see it again this month.

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Humidity will be high enough on Wednesday so the way it feels outside will certainly be over 90, but it’s only one day. To get a heat wave, which we haven’t had this year, we would need the actual temperatures to reach 90F or higher for three days in a row. Last year we were just ending a 6 day stretch of such days, one of which saw a reading of 99F.
On Thursday a cool front will push through. These fronts bring clouds and thunderstorms with them and that’s the type of day we will see. If you have some flexibility with your vacation, stay away from planning outdoor events. The timing of the front is such the morning could be the wettest period. More on this tomorrow.
I’ll be updating information about Thursday’s thunderstorm on Twitter @growingwisdom
Friday the weather turns sunny and pleasant with a return to dry and seasonable conditions. If you are not a fan of the heat and humidity, this month is proving to be a pretty tolerable one.

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