However, the jury is still out on many of these issues, as there is a lack of comprehensive studies. According to data collected by NCSL : -Twenty-one states currently have school districts (with public schools) operating on a four-day week.
In the capital Lisbon average temperatures range from 8 degrees Centigrade in January to 29 degrees Centigrade in July. But it is not unusual to get temperatures well over 30 degrees Centigrade in some summers particularly at the holiday resort of Faro in far south of Portugal.
The climate in Lisbon during April can be summarized as mild and reasonably dry. April is in the spring in Lisbon and is typically the 6th coldest month of the year. Daytime maximum temperatures average around 19Â°C (67Â°F), whilst at night 11Â°C (52Â°F) is normal. Lisbon weather averages (imperial / metric)