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Rochester, Minnesota climate
Dfb Warm-summer humid continental
Rochester has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 80°F, while the coldest is January averaging around 7°F at night. Precipitation totals about 35 inches a year and is strongly seasonal — June alone averages 5.3 inches while January barely receives 0.99 inches. Winters bring significant snowfall (53 inches of snow per year on average).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsRochester climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 23 | 27 | 40 | 55 | 68 | 78 | 80 | 78 | 72 | 58 | 42 | 28 |
| Avg temp (°F) | 15 | 19 | 32 | 45 | 58 | 68 | 71 | 68 | 61 | 48 | 34 | 21 |
| Avg low (°F) | 7 | 11 | 23 | 35 | 47 | 58 | 61 | 58 | 50 | 38 | 26 | 14 |
| Precipitation (in) | 1.0 | 1.0 | 2.0 | 3.5 | 4.4 | 5.4 | 4.2 | 4.1 | 3.6 | 2.4 | 1.8 | 1.3 |
| Snowfall (in) | 12.2 | 10.7 | 8.6 | 3.3 | 0.5 | — | — | — | — | 0.9 | 4.5 | 12.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 23 | 27 | 40 | 55 | 68 | 78 |
| Avg temp (°F) | 15 | 19 | 32 | 45 | 58 | 68 |
| Avg low (°F) | 7 | 11 | 23 | 35 | 47 | 58 |
| Precipitation (in) | 1.0 | 1.0 | 2.0 | 3.5 | 4.4 | 5.4 |
| Snowfall (in) | 12.2 | 10.7 | 8.6 | 3.3 | 0.5 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 80 | 78 | 72 | 58 | 42 | 28 |
| Avg temp (°F) | 71 | 68 | 61 | 48 | 34 | 21 |
| Avg low (°F) | 61 | 58 | 50 | 38 | 26 | 14 |
| Precipitation (in) | 4.2 | 4.1 | 3.6 | 2.4 | 1.8 | 1.3 |
| Snowfall (in) | — | — | — | 0.9 | 4.5 | 12.4 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 8 | 10 | 12 | 13 | 13 | 11 | 10 | 9 | 10 | 9 | 10 |
| Days with high ≥ 90°F (days) | — | — | — | 0.0 | 0.7 | 2 | 2 | 0.5 | 0.4 | 0.1 | — | — |
| Days with low ≤ 32°F (days) | 31 | 27 | 24 | 11 | 1 | — | — | — | 0.6 | 9 | 23 | 30 |
| Days with snowfall ≥ 1 in (days) | 4 | 3 | 2 | 1 | 0.0 | — | — | — | — | 0.3 | 1 | 4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 8 | 10 | 12 | 13 | 13 |
| Days with high ≥ 90°F (days) | — | — | — | 0.0 | 0.7 | 2 |
| Days with low ≤ 32°F (days) | 31 | 27 | 24 | 11 | 1 | — |
| Days with snowfall ≥ 1 in (days) | 4 | 3 | 2 | 1 | 0.0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 11 | 10 | 9 | 10 | 9 | 10 |
| Days with high ≥ 90°F (days) | 2 | 0.5 | 0.4 | 0.1 | — | — |
| Days with low ≤ 32°F (days) | — | — | 0.6 | 9 | 23 | 30 |
| Days with snowfall ≥ 1 in (days) | — | — | — | 0.3 | 1 | 4 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 62 | 67 | 65 | 66 | 61 | 51 | 52 | 51 | 61 | 65 | 66 |
| Clear days (≤ 30% cloud) | 5 | 5 | 4 | 5 | 4 | 6 | 8 | 9 | 10 | 7 | 5 | 5 |
| Partly cloudy days (30–70%) | 11 | 11 | 10 | 9 | 10 | 11 | 14 | 12 | 9 | 8 | 10 | 10 |
| Cloudy days (≥ 70%) | 15 | 12 | 17 | 16 | 16 | 13 | 9 | 10 | 10 | 15 | 15 | 16 |
| Relative humidity (%) | 90 | 87 | 80 | 75 | 75 | 77 | 76 | 75 | 73 | 76 | 82 | 89 |
| Wind speed (mph) | 9.4 | 9.5 | 8.9 | 8.7 | 7.6 | 6.4 | 5.8 | 5.6 | 6.7 | 7.5 | 8.0 | 8.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 62 | 67 | 65 | 66 | 61 |
| Clear days (≤ 30% cloud) | 5 | 5 | 4 | 5 | 4 | 6 |
| Partly cloudy days (30–70%) | 11 | 11 | 10 | 9 | 10 | 11 |
| Cloudy days (≥ 70%) | 15 | 12 | 17 | 16 | 16 | 13 |
| Relative humidity (%) | 90 | 87 | 80 | 75 | 75 | 77 |
| Wind speed (mph) | 9.4 | 9.5 | 8.9 | 8.7 | 7.6 | 6.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 51 | 52 | 51 | 61 | 65 | 66 |
| Clear days (≤ 30% cloud) | 8 | 9 | 10 | 7 | 5 | 5 |
| Partly cloudy days (30–70%) | 14 | 12 | 9 | 8 | 10 | 10 |
| Cloudy days (≥ 70%) | 9 | 10 | 10 | 15 | 15 | 16 |
| Relative humidity (%) | 76 | 75 | 73 | 76 | 82 | 89 |
| Wind speed (mph) | 5.8 | 5.6 | 6.7 | 7.5 | 8.0 | 8.3 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Rochester Intl AP (NOAA GHCN station USW00014925), about 13 km from the city centre.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.