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Mount Vernon, OH weather and climate

Knox County, OH · population 16,802 · about 971 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Mount Vernon's own coordinates.

The year at a glance

Sunny days
171
clear or partly cloudy, per year
Precipitation
42 in
per year
Wet days
144
rain or snow per year
Snowfall
33 in
per year
Hot days
7
above 90 °F
Freezing nights
145
at or below 32 °F
Humidity
71%
average relative
Average temperature
49 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
20406080JanMarMayJulSepNovDaily high, Jan: 33 °FDaily high, Feb: 37 °FDaily high, Mar: 47 °FDaily high, Apr: 61 °FDaily high, May: 71 °FDaily high, Jun: 79 °FDaily high, Jul: 82 °FDaily high, Aug: 80 °FDaily high, Sep: 75 °FDaily high, Oct: 63 °FDaily high, Nov: 50 °FDaily high, Dec: 38 °FDaily low, Jan: 15 °FDaily low, Feb: 18 °FDaily low, Mar: 26 °FDaily low, Apr: 36 °FDaily low, May: 47 °FDaily low, Jun: 56 °FDaily low, Jul: 59 °FDaily low, Aug: 57 °FDaily low, Sep: 49 °FDaily low, Oct: 38 °FDaily low, Nov: 28 °FDaily low, Dec: 22 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high333747617179828075635038
Daily low151826364756595749382822

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovMount Vernon, Jan: 3.3 inMount Vernon, Feb: 2.7 inMount Vernon, Mar: 3.8 inMount Vernon, Apr: 4.6 inMount Vernon, May: 4.4 inMount Vernon, Jun: 4.2 inMount Vernon, Jul: 3.6 inMount Vernon, Aug: 3.1 inMount Vernon, Sep: 3.0 inMount Vernon, Oct: 3.1 inMount Vernon, Nov: 3.2 inMount Vernon, Dec: 3.3 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Mount Vernon3.32.73.84.64.44.23.63.13.03.13.23.3

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovMount Vernon, Jan: 9 daysMount Vernon, Feb: 9 daysMount Vernon, Mar: 13 daysMount Vernon, Apr: 13 daysMount Vernon, May: 14 daysMount Vernon, Jun: 16 daysMount Vernon, Jul: 20 daysMount Vernon, Aug: 20 daysMount Vernon, Sep: 19 daysMount Vernon, Oct: 16 daysMount Vernon, Nov: 13 daysMount Vernon, Dec: 9 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Mount Vernon991313141620201916139

Compare Mount Vernon with another city

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See weather for every covered Ohio city

About this data

Figures are 30 year averages for 1991-2020. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.

Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).