t</code> data frame has 72 rows and 3 columns.
Monthly data were obtained for a number of sites (in Australia)
and a number of months. 
</p>


<h3>Usage</h3>

<pre><code class='language-R'>dewpoint</code></pre>


<h3>Format</h3>

<p>This data frame contains the following columns:
</p>

<dl>
<dt>maxtemp</dt><dd><p>monthly minimum temperatures</p>
</dd>
<dt>mintemp</dt><dd><p>monthly maximum temperatures</p>
</dd>
<dt>dewpt</dt><dd><p>monthly average dewpoint for each combination of
minimum and maximum temper