{"id":2378,"date":"2019-08-06T21:25:46","date_gmt":"2019-08-06T19:25:46","guid":{"rendered":"https:\/\/blog.chschmid.com\/?p=2378"},"modified":"2019-08-06T21:25:46","modified_gmt":"2019-08-06T19:25:46","slug":"its-getting-warmer-morning-data-points","status":"publish","type":"post","link":"https:\/\/blog.chschmid.com\/?p=2378","title":{"rendered":"It&#8217;s Getting Warmer &#8211; Morning Data Points"},"content":{"rendered":"\n<p>In <a href=\"https:\/\/blog.chschmid.com\/?p=2371\">my previous post<\/a> I described how I got data from my weather station into MATLAB to help me answer my primary questions:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>When to open the windows in the evening, to let in cool air?<\/li><li>When to close the windows again in the morning?<\/li><\/ul>\n\n\n\n<p>The data I have available covers 10 days, including a late July heat wave. At first I tried to understand when the lowest outside temperature was reached and when it increased again by more than 0.5 \u00b0C and 1 \u00b0C compared to the minimum.<\/p>\n\n\n\n<table class=\"wp-block-table\"><tbody><tr><td>Day<\/td><td>Min Temperature (\u00b0C)<\/td><td>Time<\/td><td>Time +0.5\u00b0C<\/td><td> Time +1\u00b0C <\/td><\/tr><tr><td>18 Jul 2019<\/td><td>16.3<\/td><td>05:54<\/td><td> 06:54<\/td><td>06:54<\/td><\/tr><tr><td>19 Jul 2019<\/td><td>17.0<\/td><td>05:56<\/td><td> 06:52<\/td><td>07:12<\/td><\/tr><tr><td>20 Jul 2019<\/td><td>20.4<\/td><td>05.56<\/td><td> 07:01<\/td><td>08:07<\/td><\/tr><tr><td>21 Jul 2019<\/td><td>20.7<\/td><td>05:45<\/td><td> 07:00<\/td><td>07:56<\/td><\/tr><tr><td>22 Jul 2019<\/td><td>19.9<\/td><td>05:56<\/td><td> 06:27<\/td><td>07:22<\/td><\/tr><tr><td>23 Jul 2019<\/td><td>20.4<\/td><td>06:14<\/td><td> 07:05<\/td><td>08:21<\/td><\/tr><tr><td>24 Jul 2019<\/td><td>21.4<\/td><td>05:53<\/td><td> 06:48<\/td><td>07:33<\/td><\/tr><tr><td>25 Jul 2019<\/td><td>22.1<\/td><td>06:16<\/td><td> 06:51<\/td><td>07:17<\/td><\/tr><tr><td>26 Jul 2019<\/td><td>22.9<\/td><td>05:42<\/td><td> 06:17<\/td><td>07:13<\/td><\/tr><tr><td>27 Jul 2019<\/td><td>23.1<\/td><td>05:50<\/td><td> 06:36<\/td><td>07:36<\/td><\/tr><\/tbody><\/table>\n\n\n\n<p>If I had more data I&#8217;d plot a histogram of the times to decide when to close the window in the morning. For now, I can only come up with a &#8220;manual estimate&#8221; based on looking at the table above. I conclude: During summer I should close the window by 7:30 in order to optimally protect the cool indoor climate.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In my previous post I described how I got data from my weather station into MATLAB to help me answer my primary questions: When to open the windows in the evening, to let in cool air? When to close the windows again in the morning? The data I have available covers 10 days, including a [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[4],"tags":[18,24],"class_list":["post-2378","post","type-post","status-publish","format-standard","hentry","category-life_and_stuff","tag-diy","tag-engineering"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p15PpI-Cm","_links":{"self":[{"href":"https:\/\/blog.chschmid.com\/index.php?rest_route=\/wp\/v2\/posts\/2378","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.chschmid.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.chschmid.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.chschmid.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.chschmid.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2378"}],"version-history":[{"count":6,"href":"https:\/\/blog.chschmid.com\/index.php?rest_route=\/wp\/v2\/posts\/2378\/revisions"}],"predecessor-version":[{"id":2417,"href":"https:\/\/blog.chschmid.com\/index.php?rest_route=\/wp\/v2\/posts\/2378\/revisions\/2417"}],"wp:attachment":[{"href":"https:\/\/blog.chschmid.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2378"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.chschmid.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2378"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.chschmid.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2378"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}