Figure in the cost of excavation. A concrete slab is generally installed over a gravel base. The base is 4 inches, and the slab itself is 4 inches, with 2 inches above ground and 2 inches below. This means that for the average slab, you will be digging down 6 inches.
Quick facts about the weather and daylight in January. Average temperature: -0.11Â°C / 31.8Â°F. Average hours of sunlight: 24.8. Average of lowest and highest recorded temperature in January: Low -10.55Â°C / 13.01Â°F â High 8.15Â°C / 46.67Â°F. Length of day on January 1st: 4 hours and 24 minutes. If you are looking for Mai Thais by the pool and tropical weather, Iceland in January is probably not for you. If, however, winter is your jam then pack your bags and head on over.
The average maximum daytime temperature in Iceland in January is a cold 1Â°C (34Â°F). There is usually 1 hour of bright sunshine each day, which represents 13% of the 6 hours of daylight. The average sea temperature in and around Iceland in January is 3Â°C (37Â°F). Expect 99mm (3.9 inches) of rainfall across the whole of January with 18 days with some rain falling. The average night-time temperature is usually a very cold -4Â°C (25Â°F). The weather in Iceland in January is represented by Reykjavik. Metric (Â°C / mm) | Imperial (Â°F / inches)