Annual Weather Averages in Eureka
Based on weather reports collected during 1992–2021.
All Year Climate & Weather Averages in Eureka
High Temp: 51 °F
Low Temp: -41 °F
Mean Temp: 0 °F
Precipitation: 0.94"
Humidity: 70%
Dew Point: -8 °F
Wind: 11 mph
Pressure: 29.97 "Hg
Visibility: 19 mi
January Climate & Weather Averages in Eureka
High Temp: -26 °F
Low Temp: -39 °F
Mean Temp: -32 °F
Precipitation: 0.34"
Humidity: 65%
Dew Point: -40 °F
Wind: 8 mph
Pressure: 29.93 "Hg
Visibility: 13 mi
February Climate & Weather Averages in Eureka
High Temp: -28 °F
Low Temp: -41 °F
Mean Temp: -34 °F
Precipitation: 0.36"
Humidity: 66%
Dew Point: -41 °F
Wind: 7 mph
Pressure: 29.98 "Hg
Visibility: 14 mi
March Climate & Weather Averages in Eureka
High Temp: -26 °F
Low Temp: -39 °F
Mean Temp: -33 °F
Precipitation: 1.03"
Humidity: 66%
Dew Point: -40 °F
Wind: 7 mph
Pressure: 30.09 "Hg
Visibility: 16 mi
April Climate & Weather Averages in Eureka
High Temp: -8 °F
Low Temp: -22 °F
Mean Temp: -15 °F
Precipitation: 0.83"
Humidity: 66%
Dew Point: -22 °F
Wind: 8 mph
Pressure: 30.15 "Hg
Visibility: 22 mi
May Climate & Weather Averages in Eureka
High Temp: 20 °F
Low Temp: 9 °F
Mean Temp: 14 °F
Precipitation: 2.11"
Humidity: 73%
Dew Point: 8 °F
Wind: 13 mph
Pressure: 30.10 "Hg
Visibility: 25 mi
June Climate & Weather Averages in Eureka
High Temp: 43 °F
Low Temp: 33 °F
Mean Temp: 38 °F
Precipitation: 1.48"
Humidity: 72%
Dew Point: 29 °F
Wind: 20 mph
Pressure: 29.93 "Hg
Visibility: 28 mi
July Climate & Weather Averages in Eureka
High Temp: 51 °F
Low Temp: 39 °F
Mean Temp: 45 °F
Precipitation: 0.59"
Humidity: 69%
Dew Point: 34 °F
Wind: 20 mph
Pressure: 29.82 "Hg
Visibility: 28 mi
August Climate & Weather Averages in Eureka
High Temp: 43 °F
Low Temp: 34 °F
Mean Temp: 38 °F
Precipitation: 0.74"
Humidity: 77%
Dew Point: 31 °F
Wind: 17 mph
Pressure: 29.82 "Hg
Visibility: 26 mi
September Climate & Weather Averages in Eureka
High Temp: 26 °F
Low Temp: 17 °F
Mean Temp: 22 °F
Precipitation: 0.92"
Humidity: 83%
Dew Point: 18 °F
Wind: 13 mph
Pressure: 29.87 "Hg
Visibility: 18 mi
October Climate & Weather Averages in Eureka
High Temp: 4 °F
Low Temp: -10 °F
Mean Temp: -3 °F
Precipitation: 1.59"
Humidity: 74%
Dew Point: -9 °F
Wind: 8 mph
Pressure: 30.00 "Hg
Visibility: 15 mi
November Climate & Weather Averages in Eureka
High Temp: -12 °F
Low Temp: -25 °F
Mean Temp: -19 °F
Precipitation: 0.77"
Humidity: 66%
Dew Point: -27 °F
Wind: 8 mph
Pressure: 29.96 "Hg
Visibility: 14 mi
December Climate & Weather Averages in Eureka
High Temp: -21 °F
Low Temp: -33 °F
Mean Temp: -27 °F
Precipitation: 0.47"
Humidity: 66%
Dew Point: -35 °F
Wind: 8 mph
Pressure: 29.94 "Hg
Visibility: 13 mi