How do I find the specifics about weather in my city?
February 14, 2017 5:11 PM   Subscribe

I'm about to buy mini-splits for my house (Mitsubishi HyperHeat). The output and efficiency of mini-splits is highly dependent on outdoor temperature. I'm working with an engineer and HVAC installer person, but for my own peace of mind I'd like to see as much data as possible about weather (ideally including humidity) in my city. Is there any website that can tell me how many days historically per year Philadelphia dipped below n number - freezing, 25F, 17F, etc.? And the same with high temperatures in the summer (how many days above 85F, 90F, 100F, etc.)?
posted by ClaireBear to Grab Bag (4 answers total)
 
This site has a fairly complete breakdown of Philly climate. It includes the average number of days above 90 and below 32 each month, but I can't find finer scale temperature breakdowns as you requested.
posted by Seymour Zamboni at 5:24 PM on February 14, 2017


I found some additional data. This site gives number of days above 70, 80, etc, as you requested.
posted by Seymour Zamboni at 5:28 PM on February 14, 2017


The National Weather Service publishes what you're looking for regarding temperatures, though I don't know about humidity.

Check out their Philadelphia/Mt Holly weather data. You can find stuff like average high/low temperatures by day or by month, across many years. Plus record high/low as well.
posted by reeddavid at 6:21 PM on February 14, 2017


I'm a big fan of Weather Underground for historic weather. You can find a station near your house, go to the "historical" tab and then look at specific days, ranges, etc. It might not have a simple summary of days per year, but because you can limit it to time ranges you can get a better idea of recent weather (whereas all historical data will skew cold). They also have nifty graphs so you can look at things like humidity and temp on a daily basis during peak humidity months if you really want to get down into the nitty gritty.
posted by DoubleLune at 7:44 PM on February 14, 2017 [3 favorites]


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