2015 Rain Report
Posted by Bret B on January 5, 2016, 6:00 pm 187.139.64.166
Hello everyone, from the (mostly) retired weather guy! Since I'm away from La Manzanilla for longer periods now and can't maintain a reliable rainfall dataset, Tom and Mary Jo have taken over the rainfall reporting (thanks, you two!) I'm still glad to capture their data in my rainfall spreadsheets and generate some summary reports when I have the time. Here is the 2015 rainfall summary (words first, then a table, then graphs at the end.) I'll try to post a temperature and humidity summary report later. Big news first: 2015 set the record for the wettest year in our records (dating back to 2004.) We got 56.75" / 1441mm! That beat the previous record just last year (54.10" / 1374mm). The annual average rainfall is 40.29" / 1023mm.) We had the 2nd wettest month since 2004: October's rainfall was 21.25" / 540mm. 1st place is still Sep 2014 (22.16" / 563mm.) For the 1-day rainfall record, 2015 also came in 2nd with 9.00" / 229mm falling on Oct 23 from Hurricane Patricia. (#1 is the 12.24" / 311mm on Oct 11 2011 from Jova.) In the multi-day storm total competition, Patricia only came in at 5th place with 10.75" / 273mm over the 3-day period. Patricia definitely brought less rain but FAR more winds than 2011's Hurricane Jova. 2015 also brought the end of the 11-year dry stretch for March rainfall: we got 9.9" / 251mm in just 3 days, from the "Fire Hose" effect. This leaves only April with zero rain since 2004. And August was the driest since 2004: only 1.34" / 34mm. The average August rain total is 8.11" / 206mm. ------------------------------------------------ Here is all the monthly rainfall data from 2004-2015. Inches first, then millimeters: Here is the 2015 rainfall, by month: Compare the previous 2015 graph with the historical average rainfall (2004-2015), by month. Careful! I changed the vertical scale on you: Here is each year's total rainfall. The trend line is very obvious and heading up year by year: If you're not sick of graphs yet, here is every day's rainfall for the whole year of 2015 (hope this fits on your display To make it easier to resolve the individual days, here is a zoomed-in version of the previous graph covering just the rainy season (Jun through Oct), including the names of the storms that were responsible for the bigger spikes: So, based on the upward trend line year-by-year, we should expect even more rain in 2016, but it's not that easy to predict. If we had one rainy hurricane less in 2015, the trend would have been less obvious. We shall see!
| ------------------------Great To Have You Back, Bret B.
Posted by Mark S on January 5, 2016, 6:23 pm, in reply to "2015 Rain Report" 189.164.114.38------------------------Re: Great To Have You Back, Bret B.
Posted by davidstrand on January 5, 2016, 6:26 pm, in reply to "Great To Have You Back, Bret B." 203.98.92.87------------------------Re: Great To Have You Back, Bret B.
Posted by Rennie on January 5, 2016, 8:28 pm, in reply to "Re: Great To Have You Back, Bret B." 189.164.102.165
Great graphs, Bret, muchas gracias! | ------------------------Re: 2015 Rain Report
Posted by Red on January 5, 2016, 8:31 pm, in reply to "2015 Rain Report" 189.164.96.16
Great work as usual, thanks Bret. Rojo | ------------------------Re: 2015 Rain Report
Posted by charley on January 6, 2016, 8:40 am, in reply to "Re: 2015 Rain Report"
Bret, Thanks for stats. do you have any stats for temperature? Rumor is that November 2015 was the hottest ever recorded? | ------------------------Re: 2015 Rain Report
Posted by Tom on January 7, 2016, 3:15 pm, in reply to "2015 Rain Report" 187.139.75.162------------------------Re: 2015 Rain Report
Posted by LIsa Fern on January 9, 2016, 10:34 pm, in reply to "2015 Rain Report" 187.139.70.115
Thanks for the great info Bret! For someone who was here all summer, it's hard to believe that we had the wettest year! It hardly rained at all this summer, just heat, heat, heat. Much different than the previous year, (2014, my first summer here), with welcome rainstorms every so often. | ------------------------
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