[R] Download daily weather data

[Thomas Levine]

Geonames unfortunately doesn't have weather forecasts. This is a problem.

GRIB looks better. There is an interface between GRIB and R.

On Fri, Feb 27, 2009 at 4:14 AM, Pfaff, Bernhard Dr.
<Bernhard_Pfaff at fra.invesco.com> wrote:
> Dear Thomas,
>
> more for the sake of completeness and as an alternative to R. There are GRIB data [1] sets available (some for free) and there is the GPL software Grads [2]. Because the Grib-Format is well documented it should be possible to get it into R easily and make up your own plots/weather analyis. I do not know and have not checked if somebody has already done so.
>
> I use this information/tools aside of others during longer-dated off-shore sailing.
>
> Best,
> Bernhard
>
> [1] http://www.grib.us/
> [2] http://www.iges.org/grads/
>
>>-----Ursprüngliche Nachricht-----
>>Von: r-help-bounces at r-project.org
>>[mailto:r-help-bounces at r-project.org] Im Auftrag von Scillieri, John
>>Gesendet: Donnerstag, 26. Februar 2009 22:58
>>An: 'James Muller'; 'r-help at r-project.org'
>>Betreff: Re: [R] Download daily weather data
>>
>>Looks like you can sign up to get XML feed data from Weather.com
>>
>>http://www.weather.com/services/xmloap.html
>>
>>Hope it works out!
>>
>>-----Original Message-----
>>From: r-help-bounces at r-project.org
>>[mailto:r-help-bounces at r-project.org] On Behalf Of James Muller
>>Sent: Thursday, February 26, 2009 3:57 PM
>>To: r-help at r-project.org
>>Subject: Re: [R] Download daily weather data
>>
>>Thomas,
>>
>>Have a look at the source code for the webpage (ctrl-u in firefox,
>>don't know in internet explorer, etc.). That is what you'd have to
>>parse in order to get the forecast from this page. Typically when I
>>parse webpages such as this I use regular expressions to do so (and I
>>would never downplay the usefulness of regular expressions, but they
>>take a little getting used to). There are two parts to the task: find
>>patterns that allow you to pull out the datum/data you're after; and
>>then write a program to pull it/them out. Also, of course, download
>>the webpage (but that's no issue).
>>
>>I bet you'd be able to find a comma separated value (CSV) file
>>containing the weather report somewhere, which would probably involve
>>a little less labor in order to produce your automatic wardrobe
>>advice.
>>
>>James
>>
>>
>>
>>On Thu, Feb 26, 2009 at 3:47 PM, Thomas Levine
>><thomas.levine at gmail.com> wrote:
>>> I'm writing a program that will tell me whether I should wear a coat,
>>> so I'd like to be able to download daily weather forecasts and daily
>>> reports of recent past weather conditions.
>>>
>>> The NOAA has very promising tabular forecasts
>>>
>>(http://forecast.weather.gov/MapClick.php?CityName=Ithaca&state
> =NY&site=BGM&textField1=42.4422&textField2=-76.5002&e=0>&FcstType=digital),
>>> but I can't figure out how to import them.
>>>
>>> Someone must have needed to do this before. Suggestions?
>>>
>>> Thomas Levine!
>>>
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