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St. Marys, OH weather and climate

Auglaize County, OH · population 8,319 · about 873 ft elevation

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

The year at a glance

Sunny days
176
clear or partly cloudy, per year
Precipitation
41 in
per year
Wet days
135
rain or snow per year
Snowfall
17 in
per year
Hot days
11
above 90 °F
Freezing nights
117
at or below 32 °F
Humidity
71%
average relative
Average temperature
51 °F
year round

Monthly temperatures

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

Daily highDaily low
20406080JanMarMayJulSepNovDaily high, Jan: 34 °FDaily high, Feb: 38 °FDaily high, Mar: 49 °FDaily high, Apr: 62 °FDaily high, May: 73 °FDaily high, Jun: 81 °FDaily high, Jul: 84 °FDaily high, Aug: 82 °FDaily high, Sep: 77 °FDaily high, Oct: 65 °FDaily high, Nov: 50 °FDaily high, Dec: 38 °FDaily low, Jan: 19 °FDaily low, Feb: 21 °FDaily low, Mar: 29 °FDaily low, Apr: 40 °FDaily low, May: 51 °FDaily low, Jun: 60 °FDaily low, Jul: 63 °FDaily low, Aug: 61 °FDaily low, Sep: 54 °FDaily low, Oct: 44 °FDaily low, Nov: 33 °FDaily low, Dec: 24 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high343849627381848277655038
Daily low192129405160636154443324

Monthly precipitation

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

0.02.04.0JanMarMayJulSepNovSt. Marys, Jan: 3.0 inSt. Marys, Feb: 2.5 inSt. Marys, Mar: 3.5 inSt. Marys, Apr: 4.4 inSt. Marys, May: 4.3 inSt. Marys, Jun: 4.1 inSt. Marys, Jul: 3.5 inSt. Marys, Aug: 3.4 inSt. Marys, Sep: 2.7 inSt. Marys, Oct: 3.0 inSt. Marys, Nov: 3.2 inSt. Marys, Dec: 2.9 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
St. Marys3.02.53.54.44.34.13.53.42.73.03.22.9

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovSt. Marys, Jan: 9 daysSt. Marys, Feb: 10 daysSt. Marys, Mar: 13 daysSt. Marys, Apr: 14 daysSt. Marys, May: 15 daysSt. Marys, Jun: 17 daysSt. Marys, Jul: 20 daysSt. Marys, Aug: 20 daysSt. Marys, Sep: 20 daysSt. Marys, Oct: 17 daysSt. Marys, Nov: 13 daysSt. Marys, Dec: 10 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
St. Marys91013141517202020171310

Compare St. Marys with another city

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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).