The summary climate graph for Barter Island, AK shows a selection of temperature, rainfall and snow minimum, mean and maximum measures over the course of a year. Click on each of the measures in the key to toggle them on and off.
The warmest month in Barter Island Lrrs, Barter Island, Alaska is July with an average high temperature of 46.3°F. The hottest day on record was August 6 1999 when the temperature hit 90.0°F. During February the overnight temperature drops to an average of -23.0°F with the lowest temperature of -59.1°F being recorded on February 12 1950.
The warmest days on record are:
| 6 Aug 1999 | 90°F |
| 29 Jul 1974 | 78.1°F |
| 11 Jul 1953 | 71.1°F |
| 30 Jul 1976 | 71.1°F |
| 28 Jul 1985 | 71.1°F |
The warmest months on average were:
| July 1989 | 60°F |
| August 1957 | 53.6°F |
| July 2012 | 53°F |
| August 2012 | 52.5°F |
| July 1990 | 52°F |
The coldest days on record are:
| 12 Feb 1950 | -59.1°F |
| 17 Feb 1987 | -58°F |
| 13 Jan 1975 | -54°F |
| 18 Feb 1985 | -53°F |
| 31 Jan 1984 | -52.1°F |
The coldest months on average were:
| February 1984 | -39.7°F |
| February 1950 | -38.7°F |
| December 1974 | -36.2°F |
| February 1965 | -35.1°F |
| January 1975 | -34.8°F |
The wettest month by average rainfall in Barter Island, AK is May with an average of 0.6 inches of rain falling on 3 to 4 days.Although in August it typically rains on more days with 0.4 inches falling in 14 to 15 days. The driest month by average rainfall in Barter Island, AK is February with an average of 0.0 inches of rain falling on 0 to 1 days. Although in March it typically rains on less days with 0.1 inches falling in 0 to 1 days
The wettest days on record are:
| 24 May 1973 | 3.9 inches |
| 28 May 1977 | 1 inches |
| 11 May 1974 | 0.7 inches |
| 28 May 1976 | 0.6 inches |
| 28 May 1983 | 0.4 inches |
The wettest months on record are:
| May 1973 | 25.7 inches |
| October 1985 | 3.9 inches |
| July 1975 | 3.4 inches |
| November 1975 | 3.2 inches |
| October 1978 | 3.2 inches |
The driest months on record are:
| October 1963 | 0 inches |
| August 1989 | 0 inches |
| November 1989 | 0 inches |
| December 1947 | 0 inches |
| December 2012 | 0 inches |