bluewave Posted April 14, 2014 Share Posted April 14, 2014 I wanted to compare how the the annual number of 90 degrees days has varied around the area since 1984. 10 year groupings of years were used over the 30 year period from 1984 to 2013. My guess is that the decline in 90 degree days from the first 10 year interval in NYC to the most recent was a result of increased vegetation growth around the sensor. It's also interesting to note that there was a slight decline in 90 degree days at EWR after first 10 year interval. There was a more significant increase in 90 degree days at LGA and JFK after 2004. It appears that the recent rise at JFK and LGA over the last 10 years is related to the warmer SST's over this period. It's a bit uncertain why there was the increase at LGA while EWR saw fewer 90 degree days. I also wonder if some of the changes may have been related to the change to ASOS and possible different sittings at the airports? 90 degree days EWR 84-93....300 94-03....253 04-13....276 84-93 to 04-13 change....-8.0% NYC 84-93...199 94-03...160 04-13...155 84-93 to 04-13 change...-22.2% LGA 84-93...167 94-03...186 04-13...225 84-93 to 04-13 change...+25.8% JFK 84-93...102 94-03...102 04-13...122 84-93 to 04-13 change...+16.4% Source for 90 degree data NCDC annual summary http://www.ncdc.noaa.gov/IPS/lcd/lcd.html?_page=1&state=NY&stationID=94728&_target2=Next+%3E http://www1.ncdc.noaa.gov/pub/orders/IPS/IPS-C3A50FED-8C9E-4A2B-A2CB-01323E5A1F7E.pdf Link to comment Share on other sites More sharing options...
SACRUS Posted April 14, 2014 Share Posted April 14, 2014 Interesting stats bluewave. I have been tracking the major NY/NJ sites the last few years. Curious if you have the individual numbers by site for those years. I know unc might. I am starting to look into some summer analogs - 1960, 1986, 2002 all some decent analogs. Link to comment Share on other sites More sharing options...
bluewave Posted April 15, 2014 Author Share Posted April 15, 2014 Interesting stats bluewave. I have been tracking the major NY/NJ sites the last few years. Curious if you have the individual numbers by site for those years. I know unc might. I am starting to look into some summer analogs - 1960, 1986, 2002 all some decent analogs. It's interesting to see how LGA passed NYC for second place between 94-96. 90 degree days Year..EWR....NYC....LGA.....JFK 84...22...10...9...13 85...11....9....8....5 86...22...11...9...8 87...37...22...19..11 88...43...32...26...14 89...27...16...17...9 90...26...12...10...6 91...41...39...26...13 92...22.....9...9......6 93...49...39...26...13 94...39...19...22...7 95...33...29...23...15 96....8.....3.....6....4 97...20...12...17...10 98...21.....8....11....5 99...33...27...26....14 00...16....7.....12.....6 01...22...15...17.....8 02...41...32....35...21 03...20....8...17.....12 04...13...2.....7.......1 05...37...23...30.....17 06...26...8....22......12 07...21..10...23.......7 08...22...12...19......9 09...14....7.....8.......6 10...54....37...48.....32 11...31...20...19.....13 12...33...19....28....16 13...25....17....21....9 Link to comment Share on other sites More sharing options...
bluewave Posted April 15, 2014 Author Share Posted April 15, 2014 It was more typical during the 50s through the 70s for NYC and EWR to have a similar number of 90 degree days during the years with a high number of 90 degree days. Year...EWR....NYC....LGA 53....32...32...30 66....33...35...25 77....25...23...14 Link to comment Share on other sites More sharing options...
bluewave Posted April 19, 2014 Author Share Posted April 19, 2014 The summer average temperatures follow the same pattern with Central park lagging JFK and LGA. Link to comment Share on other sites More sharing options...
JBG Posted May 5, 2014 Share Posted May 5, 2014 Interesting stats bluewave. I have been tracking the major NY/NJ sites the last few years. Curious if you have the individual numbers by site for those years. I know unc might. I am starting to look into some summer analogs - 1960, 1986, 2002 all some decent analogs. Those are three woppingly different years in terms of +90's; 1960, almost none, 1986, about average but all before mid-July, and 2002 a scorcher. Link to comment Share on other sites More sharing options...
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