Analysis of information sources in references of the Wikipedia article "Beit Netofa Valley" in English language version.
Kibbutz Merom Golan on the Golan Heights experienced temperatures of -14.2° C [...] The previous low was reached in February 1950 in the Beit Netofa valley. [...] The Golan Heights were not a part of Israel at that time, and their higher altitude likely would have earned them the original record too.