Climate

This map is from:http://met.no/English/Climate_in_Norway/

Norway shares the same latitude as Alaska, Greenland and Siberia, but do not share the same climate. The climate in Norway is decided by the gulf stream. Together with warm winds from south, the gulf stream makes Norway milder than it normally should be considering the high latitude. 

The norwegian climate shows great variation and is marked by big contradictions with fjords and valleys and with high mountain peeks in between as important factors of differences in altitude. The variations in the climate in a year to year basis is quite big, especially in the northern parts of Norway which is located on the outskirts of the temperate zone, with midnight sun in the summer and no sunshine during the wintertime. The coastal areas experiences more temperate winters and colder summers than the areas located in the inner part of the country. This is due to the small differences in the ocean temperature between winter and summer.

Located in the south, Oslo is Norway's capital and largest city. The hottest month in Oslo is july and has a mean temperature of 18°C (64°F). December is the coldest month in Oslo with a mean temperature of -3°C (27°F). Thus, the annual temperature range in Oslo is 21°C (37°F). August is the wettest month in Oslo with an average rain amount at 91 mm(3.6 inches). February is the driest month with an average rain amount at 37 mm (1.5 inches). So, the annual range of precipitation in Oslo is 54 mm (2.1 inches).

Honningsvaag is the northernmost city on the mainland of Norway an has a subarctic climate. July is the hottest month in Honningsvaag with a mean temperature of 12°C (53°F), and january as the coldest month has a mean temperature of -3°C (28°F). The annual temperature range in Honningsvaag is therefore 15°C (25°F). The fall is generally the wettest season in Norway, but in Honningsvaag december is the month with the most precipitation. The average rain amount in december is at 92mm (3.62 inches). The driest month is may with an average rain amount at 41mm (1.61 inches). Thus, the annual range of precipitation in Honningvaag is 51mm (2.01 inches).

In Honolulu the annual temperature range is -12.2°C (10°F) and the annual precipitation range is 63.5mm (2.5 inches). Annual temperature range in Oslo was as I mentioned earlier 7°C (45°F), and annual precipitation range was at 62mm (2.4 inches). So, there is no surprise that Honolulu is the warmer city of these to, with Norway located in the northern hemisphere with more seasonal changes and Honolulu located near the equator. Oslo is wetter though, with the wettest month being august, where as the wettest month in Honolulu is December. The driest month in Honolulu is june with only 7.1mm (0.27 inches) average rain amount, compared to the driest month in Oslo which is february with as much as 37mm (1.45 inches) average rain amount. Oslo experiences large seasonality with mild to warm summers and very cold winters, while Honolulu does not experience so big differences in summer and winter temperatures, but instead has almost the same annual precipitation range as Oslo.

Sources:

http://met.no/English/Climate_in_Norway/

http://weather2travel.com

www.holiday-weather.com