 How years compare with the 20th Century average 2019 10 warmest years 10 coldest years 20th Century average Hotter Colder Months J F M A M J J A S O N D Source: NOAA Replay Iciyumviro co kubazwa ku watumye haba ihindagurika ryibihe cari kimaze igihe kirekire ciyamirizwa nibihugu bitunze, vyatinya ko hazoba amategeko akaze cane muri kazoza. 