Hermiston Travel Guide
For foreign visitors
Hermiston weather essentials
Month
High
Low
Precip
Sep
73°F 22°C
45°F 7°C
1 in 2 cm
Oct
58°F 14°C
35°F 1°C
1 in 3 cm
Nov
44°F 6°C
31°F 0°C
1 in 3 cm
Dec
38°F 3°C
27°F -2°C
1 in 3 cm
Jan
37°F 2°C
27°F -2°C
1 in 3 cm
Feb
41°F 5°C
27°F -2°C
1 in 3 cm
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