Nattehøygrad
Nattehøygrad is a Norwegian term that translates to "night high degree" and refers to the highest temperature recorded during the nighttime hours. This phenomenon is distinct from the daily maximum temperature, which typically occurs in the afternoon. Nattehøygrad is influenced by various factors including cloud cover, humidity, and wind patterns. A warmer night can be caused by the retention of heat from the day due to dense cloud cover or high humidity, which acts as an insulator. Reduced wind can also contribute, as it prevents cooler air from mixing with the warmer air near the ground. In meteorological contexts, tracking nattehøygrad can be important for understanding local climate patterns and assessing the risk of frost or heat stress for vegetation. It is a metric used in climate analysis and can be an indicator of broader climatic trends. While not as commonly discussed as daily high or low temperatures, nattehøygrad provides valuable insights into diurnal temperature variations and their contributing atmospheric conditions.