I have a webpage (https://deos.udel.edu/data/daily_retrieval.php) I want to extract data from. However, the data is precipitation data related to a specific selection made within the webpage. The specific selections include Station, and date. I am using the R package rvest and I am not sure if this data request can be done in R with rvest. Some of the source code of interest for the webpage may be found below.

        <label class="retsection" for="station">Station:</label><br>
        <select class="statlist" name="station" id="station" size="10">
<option class="select_input" value="DTBR" selected>Adamsville, DE-Taber</option>
<option class="select_input" value="DBUR">Angola, DE-Burton Pond</option>
<option class="select_input" value="DWHW">Atglen, PA-Wolfs Hollow</option>
<option class="select_input" value="DBBB">Bethany Beach, DE-Boardwalk</option>
<option class="select_input" value="DBNG">Bethany Beach, DE-NGTS</option>
<option class="select_input" value="DBKB">Blackbird, DE-NERR</option>
<option class="select_input" value="DBRG">Bridgeville, DE</option>

        <label class="retsection">Date:<br> </label>
        <select name='month' size='6' length='10'>
<option value='1'>January</option>
<option value='2'>February</option>
<option value='3'>March</option>
<option value='4'>April</option>
<option value='5'>May</option>
<option value='6'>June</option>
<option value='7'>July</option>
<option value='8' selected>August</option>
<option value='9'>September</option>
<option value='10'>October</option>
<option value='11'>November</option>
<option value='12'>December</option>
</select>
<select name='day' size='6' length='4'>
<option value='1'>1</option>
<option value='2' selected>2</option>
<option value='3'>3</option>
<option value='4'>4</option>
<option value='5'>5</option>
<option value='6'>6</option>

My initial thought is this task cannot be done since the precipitation data is not actively displayed on the webpage… the data pops up in a separate window after the selection is made. I have an access key provided by the webpage but am not 100% sure if it can be used to retrieve the large dataset I am wishing to pull.

1. Is this type of data request feasible with rvest?
2. What would be some suggested methods to extract large amounts of data via R. For example a years worth of precipitation data for a specific station of interest.

Thanks.