ROCHESTER, IN

Overview:
Rochester is located due west of Fort Wayne, IN. Lake Manitou comprises 20% of Rochester’s total area and is a large lake located directly inside the town borders.

Precipitation is highest in the spring and summer months, though wintertime precipitation has largely increased over time. Despite this, days with extreme precipitation events occur sparingly, totaling less than one week per year. Similarly, the area experiences a few days above 90°F, amounting to around 10 per year. Conversely, days below freezing (32°F) happen often and are to be expected during the colder months of the year.

State/ Province ID: IN

Station ID: C00127482

Directory Name: ROCHESTER_HCN_IN_C00127482

Elevation: 231.60m

The resources presented here were developed in cooperation with the Office of the Michigan State Climatologist using data from the National Centers for Environmental Information. For more information regarding our data sources, quality control, and methodology, please see our Historical Climatologies: Quality Control reference guide.

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Recent Climate Summary, 1991-2020


Average Temperature	50.4°F10.2°C
Average Low Temperature	40.9°F4.9°C
Average High Temperature	60.0°15.5°C
Days/Year that exceed 90°F	9.7
Days/Year that fall below 32°F	119.6
Lowest Annual Average Temperature	47.7°F8.7°C
Highest Annual Average Temperature	53.2°F11.8°C
Average Annual Total Precipitation	40.7 in103.3 cm
Lowest Annual Precipitation Total	30.2 in76.7 cm
Highest Annual Precipitation Total	51.2 in130.1 cm
Days/Year that exceed 1.25" of Precipitation	5.6

Temperature

Click on the following links to be taken to the corresponding portion of the page.

Monthly Average Temperature
How Temperatures are Changing
- Changes in Average Temperature – Includes a summary table of the average annual and seasonal temperature changes, and time series graphs of how the annual low, average, and high temperatures compare to the long term average plotted for every year on record.
- Cold Temperatures – View time series plots of the number of days per year below 32°F and the number of heating degree days per year to see how cold days are changing.
- Hot Temperatures – View time series plots of the number of days per year above 90°F and the number of cooling degree days per year to see how hot days are changing.
- Growing Season Changes – View a time series of the annual number of days in the freeze-free period.

Monthly Average Temperature

Changes in Average Temperature, 1951-2025.


	°F°C
Annual average temperature	2.41.3
Winter average temperature	4.12.3
Spring average temperature	2.81.5
Summer average temperature	1.20.7
Fall average temperature	2.41.3

Annual High and Low Temperature Departure

Cold Temperatures

¹Heating Degree Days (HDDs) are indexed units, not actual days, that roughly describe the demand to heat a building. HDDs accumulate on days colder than 65°F when heating is required. Every degree below 65°F is added to the annual total for an annual HDD value, which is plotted in the figure.

Hot Temperatures

²Cooling Degree Days (CDDs) are indexed units, not actual days, that roughly describe the demand to cool a building. CDDs accumulate on days warmer than 65°F when cooling is required. Every degree above 65°F is added to the annual total for an annual CDD value, which is plotted in the figure.

Growing Season Changes

Precipitation