Eric Foner, a professor of history at Columbia University and author of The Fiery Trial: Abraham Lincoln and American Slavery, recommends Donald's book as the best one-volume account of Lincoln's life. [Donald] avoided the two pitfalls that people fall into.
1 The average temperature in Oslo in July is very mild at 16.4 Â°C (61.52 Â°F). 2  Afternoons can be really warm with average high temperatures reaching 22 Â°C (71.6 Â°F).  Overnight temperatures are generally mild with an average low of 13 Â°C (55.4 Â°F).
January sees Oslo at its coldest with a mean temperature of -4.3 Â°C. From January to February the mean daily temperature sits at a blistering -7 Â°C, and back in 1871 Oslo recorded a achingly cold low of -27.9 Â°C. Temperature begin to warm up slightly in March before reaching an average daily high of 16 degrees by May.