Home › Cities › United States › Michigan › Bay City
Bay City, Michigan climate
Dfa Hot-summer humid continental
Bay City has a strongly seasonal cool-temperate climate (Hot-summer humid continental, Köppen Dfa). The hottest month is July with an average daily high near 83°F, while the coldest is January averaging around 16°F at night. Precipitation is fairly even year-round, totalling about 34 inches. Winters bring significant snowfall (41 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 countsBay City climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 30 | 33 | 43 | 56 | 69 | 79 | 83 | 82 | 74 | 61 | 46 | 35 |
| Avg temp (°F) | 23 | 25 | 34 | 46 | 58 | 68 | 72 | 71 | 63 | 51 | 39 | 29 |
| Avg low (°F) | 16 | 17 | 25 | 35 | 47 | 58 | 62 | 60 | 52 | 41 | 31 | 23 |
| Precipitation (in) | 2.3 | 1.9 | 2.0 | 3.6 | 3.6 | 3.5 | 3.4 | 3.5 | 2.7 | 2.9 | 2.6 | 2.0 |
| Snowfall (in) | 11.4 | 9.1 | 5.0 | 1.3 | — | — | — | — | — | 0.2 | 2.3 | 11.4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 30 | 33 | 43 | 56 | 69 | 79 |
| Avg temp (°F) | 23 | 25 | 34 | 46 | 58 | 68 |
| Avg low (°F) | 16 | 17 | 25 | 35 | 47 | 58 |
| Precipitation (in) | 2.3 | 1.9 | 2.0 | 3.6 | 3.6 | 3.5 |
| Snowfall (in) | 11.4 | 9.1 | 5.0 | 1.3 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 83 | 82 | 74 | 61 | 46 | 35 |
| Avg temp (°F) | 72 | 71 | 63 | 51 | 39 | 29 |
| Avg low (°F) | 62 | 60 | 52 | 41 | 31 | 23 |
| Precipitation (in) | 3.4 | 3.5 | 2.7 | 2.9 | 2.6 | 2.0 |
| Snowfall (in) | — | — | — | 0.2 | 2.3 | 11.4 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 8 | 9 | 11 | 11 | 9 | 9 | 10 | 8 | 11 | 10 | 11 |
| Days with high ≥ 90°F (days) | — | — | — | — | 0.4 | 2 | 4 | 2 | 0.9 | 0.1 | — | — |
| Days with low ≤ 32°F (days) | 17 | 17 | 16 | 7 | 0.6 | — | — | — | — | 3 | 11 | 17 |
| Days with snowfall ≥ 1 in (days) | 4 | 3 | 2 | 0.5 | — | — | — | — | — | 0.0 | 0.8 | 3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 8 | 9 | 11 | 11 | 9 |
| Days with high ≥ 90°F (days) | — | — | — | — | 0.4 | 2 |
| Days with low ≤ 32°F (days) | 17 | 17 | 16 | 7 | 0.6 | — |
| Days with snowfall ≥ 1 in (days) | 4 | 3 | 2 | 0.5 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 10 | 8 | 11 | 10 | 11 |
| Days with high ≥ 90°F (days) | 4 | 2 | 0.9 | 0.1 | — | — |
| Days with low ≤ 32°F (days) | — | — | — | 3 | 11 | 17 |
| Days with snowfall ≥ 1 in (days) | — | — | — | 0.0 | 0.8 | 3 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 71 | 71 | 70 | 69 | 68 | 62 | 56 | 57 | 57 | 67 | 73 | 75 |
| Clear days (≤ 30% cloud) | 3 | 2 | 3 | 4 | 4 | 5 | 7 | 7 | 8 | 5 | 3 | 2 |
| Partly cloudy days (30–70%) | 10 | 10 | 10 | 9 | 10 | 11 | 13 | 13 | 11 | 10 | 8 | 9 |
| Cloudy days (≥ 70%) | 18 | 16 | 18 | 17 | 17 | 14 | 11 | 12 | 12 | 17 | 19 | 20 |
| Relative humidity (%) | 88 | 85 | 79 | 75 | 75 | 75 | 75 | 76 | 75 | 77 | 81 | 86 |
| Wind speed (mph) | 9.6 | 9.4 | 8.8 | 8.6 | 7.3 | 6.3 | 5.8 | 5.8 | 6.6 | 8.0 | 8.7 | 9.0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 71 | 71 | 70 | 69 | 68 | 62 |
| Clear days (≤ 30% cloud) | 3 | 2 | 3 | 4 | 4 | 5 |
| Partly cloudy days (30–70%) | 10 | 10 | 10 | 9 | 10 | 11 |
| Cloudy days (≥ 70%) | 18 | 16 | 18 | 17 | 17 | 14 |
| Relative humidity (%) | 88 | 85 | 79 | 75 | 75 | 75 |
| Wind speed (mph) | 9.6 | 9.4 | 8.8 | 8.6 | 7.3 | 6.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 56 | 57 | 57 | 67 | 73 | 75 |
| Clear days (≤ 30% cloud) | 7 | 7 | 8 | 5 | 3 | 2 |
| Partly cloudy days (30–70%) | 13 | 13 | 11 | 10 | 8 | 9 |
| Cloudy days (≥ 70%) | 11 | 12 | 12 | 17 | 19 | 20 |
| Relative humidity (%) | 75 | 76 | 75 | 77 | 81 | 86 |
| Wind speed (mph) | 5.8 | 5.8 | 6.6 | 8.0 | 8.7 | 9.0 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Saginaw #3 (NOAA GHCN station USC00207222), about 21 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.