PlainClimate
NOAA 1991–2020 normals 45°F annual avg Public-domain federal data

Rochester, MN Climate

Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score

45°F
Avg annual temp
44/100
Comfort score
34.7"
Annual precip
159d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Rochester

Rochester, Minnesota averages 45°F a year and scores 44/100 on the comfort index - moderate, milder than 8% of U.S. cities.

45°F
annual average temperature (NOAA normal)
44/100
comfort score, milder than 8% of U.S. cities
34.7"
annual precipitation · 53" snow
159 days
frost-free growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

45°F (7°C)

Avg High

54°F

Avg Low

36°F

Annual Precip

34.7"

Annual Snow

53.1"

Comfort Score

44/100

Moderate

Climate Comfort Score

44/100

Moderate

Avg Annual Temperature

45°F

30-year mean (NOAA NCEI)

Annual Precipitation

34.7"

Plus 53.1" of snow

Comfort score vs national 100-point ceiling (Rochester) 44.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Moderate for the Rochester area.

How Rochester compares to every U.S. city

Rochester's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

44 Top 92% higher than 8% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). This entry sits in this band. 50–60: 1,433 US cities (21%). Above this entry. 60–70: 1,357 US cities (20%). Above this entry. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020

Warming context for Rochester

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Rochester captures average conditions across the spread shown, the most recent decade is warmer than the 30-year mean.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 23°F (-5°C) 7°F (-14°C) 15°F (-10°C)
February 27°F (-3°C) 11°F (-12°C) 19°F (-7°C)
March 40°F (4°C) 23°F (-5°C) 32°F (0°C)
April 55°F (13°C) 35°F (2°C) 45°F (7°C)
May 68°F (20°C) 47°F (8°C) 58°F (14°C)
June 78°F (25°C) 58°F (14°C) 68°F (20°C)
July 80°F (27°C) 61°F (16°C) 71°F (21°C)
August 78°F (26°C) 58°F (15°C) 68°F (20°C)
September 72°F (22°C) 50°F (10°C) 61°F (16°C)
October 58°F (14°C) 38°F (3°C) 48°F (9°C)
November 42°F (5°C) 26°F (-4°C) 34°F (1°C)
December 28°F (-2°C) 14°F (-10°C) 21°F (-6°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 1.0"

Snow: 12.2"

9.4 days with precipitation

February 1.0"

Snow: 10.7"

8.0 days with precipitation

March 2.0"

Snow: 8.6"

10.2 days with precipitation

April 3.5"

Snow: 3.3"

12.2 days with precipitation

May 4.3"

Snow: 0.5"

13.3 days with precipitation

June 5.3"

12.5 days with precipitation

July 4.2"

10.5 days with precipitation

August 4.1"

10.0 days with precipitation

September 3.6"

9.3 days with precipitation

October 2.4"

Snow: 0.9"

9.5 days with precipitation

November 1.8"

Snow: 4.5"

9.2 days with precipitation

December 1.3"

Snow: 12.4"

9.6 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

October 6

50% probability date

Last Spring Freeze

April 30

50% probability date

Growing Season

159 days

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

7,856

Higher = more heating needed

Cooling Degree Days

533

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

Humidity & Wind

Monthly averages from hourly observations

Month Humidity Wind (mph)
January 80% 12.5
February 77% 12.6
March 69% 13.3
April 61% 12.8
May 67% 11.0
June 72% 10.1
July 77% 8.6
August 77% 9.2
September 70% 10.7
October 72% 12.2
November 79% 12.7
December 81% 12.8

What Rochester's climate means for you

Rochester runs 45°F a year - peaking in July, coldest in January.

  • Gardeners get about 159 frost-free days, with the last spring freeze near April 30 - plan the planting calendar around it, not the regional average.
  • Energy bills track 7,856 heating and 533 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: Rochester, MN

Based on station USW00014925 feeding NOAA's 1991–2020 climate normals, Rochester, Minnesota averages 45°F a year, ranging from a mean daily high of 54°F to a mean daily low of 36°F. July is typically the warmest month of the year, while January is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.

Beyond temperature, Rochester averages 34.7 inches of precipitation annually, with 53.1 inches typically falling as snow - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 159 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 30 and the first fall freeze near October 6. Turning to energy use, 7,856 heating degree days and 533 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Rochester scores 44/100 (Moderate), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows, shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.

Frequently Asked Questions

What is the average temperature in Rochester, MN?
The average annual temperature in Rochester, Minnesota is 45°F. The warmest month averages 80°F (27°C) and the coldest averages 7°F (-14°C).
How much rain does Rochester get?
Rochester receives 34.7 inches of precipitation annually, including 53.1 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Rochester?
Rochester has a climate comfort score of 44/100 (Moderate), milder than 8% of U.S. cities in the PlainClimate database.
When is the growing season in Rochester?
Rochester has approximately 159 frost-free days per year, with the last spring freeze around April 30 and the first fall freeze around October 6.
How much energy does heating and cooling require in Rochester?
Rochester has 7,856 heating degree days and 533 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Rochester climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00014925 near Rochester.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00014925. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.