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Portage, Indiana climate
Dfa Hot-summer humid continental
Portage has a strongly seasonal cool-temperate climate (Hot-summer humid continental, Köppen Dfa). The hottest month is July with an average daily high near 28°C, while the coldest is January averaging around −8°C at night. Precipitation is fairly even year-round, totalling about 1081 mm. Snowfall is heavy (166 cm 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 countsPortage climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 0 | 2 | 8 | 15 | 21 | 26 | 28 | 27 | 24 | 17 | 9 | 2 |
| Avg temp (°C) | −4 | −2 | 3 | 9 | 16 | 21 | 23 | 22 | 18 | 12 | 5 | −1 |
| Avg low (°C) | −8 | −7 | −2 | 4 | 10 | 15 | 18 | 17 | 13 | 7 | 1 | −5 |
| Precipitation (mm) | 76 | 64 | 69 | 96 | 110 | 111 | 103 | 107 | 86 | 104 | 82 | 72 |
| Snowfall (cm) | 58 | 41 | 18 | 3 | — | — | — | — | — | 1 | 10 | 35 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 0 | 2 | 8 | 15 | 21 | 26 |
| Avg temp (°C) | −4 | −2 | 3 | 9 | 16 | 21 |
| Avg low (°C) | −8 | −7 | −2 | 4 | 10 | 15 |
| Precipitation (mm) | 76 | 64 | 69 | 96 | 110 | 111 |
| Snowfall (cm) | 58 | 41 | 18 | 3 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 27 | 24 | 17 | 9 | 2 |
| Avg temp (°C) | 23 | 22 | 18 | 12 | 5 | −1 |
| Avg low (°C) | 18 | 17 | 13 | 7 | 1 | −5 |
| Precipitation (mm) | 103 | 107 | 86 | 104 | 82 | 72 |
| Snowfall (cm) | — | — | — | 1 | 10 | 35 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 17 | 12 | 12 | 12 | 13 | 11 | 10 | 10 | 10 | 12 | 13 | 15 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.5 | 2 | 4 | 2 | 1 | — | — | — |
| Days with low ≤ 0°C (days) | 28 | 24 | 19 | 5 | 0.1 | — | — | — | — | 1 | 13 | 25 |
| Days with snowfall ≥ 2.5 cm (days) | 7 | 5 | 2 | 0.4 | — | — | — | — | — | 0.0 | 1 | 4 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 17 | 12 | 12 | 12 | 13 | 11 |
| Days with high ≥ 32°C (days) | — | — | — | — | 0.5 | 2 |
| Days with low ≤ 0°C (days) | 28 | 24 | 19 | 5 | 0.1 | — |
| Days with snowfall ≥ 2.5 cm (days) | 7 | 5 | 2 | 0.4 | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 10 | 10 | 10 | 12 | 13 | 15 |
| Days with high ≥ 32°C (days) | 4 | 2 | 1 | — | — | — |
| Days with low ≤ 0°C (days) | — | — | — | 1 | 13 | 25 |
| Days with snowfall ≥ 2.5 cm (days) | — | — | — | 0.0 | 1 | 4 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 73 | 69 | 67 | 67 | 60 | 53 | 52 | 52 | 62 | 70 | 75 |
| Clear days (≤ 30% cloud) | 2 | 2 | 4 | 5 | 5 | 6 | 8 | 9 | 9 | 6 | 4 | 2 |
| Partly cloudy days (30–70%) | 10 | 9 | 10 | 9 | 10 | 11 | 13 | 12 | 10 | 10 | 8 | 8 |
| Cloudy days (≥ 70%) | 19 | 17 | 17 | 17 | 17 | 13 | 10 | 10 | 11 | 15 | 18 | 20 |
| Relative humidity (%) | 88 | 85 | 81 | 78 | 78 | 77 | 75 | 73 | 72 | 75 | 80 | 86 |
| Wind speed (mph) | 9.5 | 9.0 | 8.6 | 8.4 | 6.9 | 5.7 | 5.3 | 5.2 | 6.1 | 7.5 | 8.5 | 8.7 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 73 | 73 | 69 | 67 | 67 | 60 |
| Clear days (≤ 30% cloud) | 2 | 2 | 4 | 5 | 5 | 6 |
| Partly cloudy days (30–70%) | 10 | 9 | 10 | 9 | 10 | 11 |
| Cloudy days (≥ 70%) | 19 | 17 | 17 | 17 | 17 | 13 |
| Relative humidity (%) | 88 | 85 | 81 | 78 | 78 | 77 |
| Wind speed (mph) | 9.5 | 9.0 | 8.6 | 8.4 | 6.9 | 5.7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 53 | 52 | 52 | 62 | 70 | 75 |
| Clear days (≤ 30% cloud) | 8 | 9 | 9 | 6 | 4 | 2 |
| Partly cloudy days (30–70%) | 13 | 12 | 10 | 10 | 8 | 8 |
| Cloudy days (≥ 70%) | 10 | 10 | 11 | 15 | 18 | 20 |
| Relative humidity (%) | 75 | 73 | 72 | 75 | 80 | 86 |
| Wind speed (mph) | 5.3 | 5.2 | 6.1 | 7.5 | 8.5 | 8.7 |
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Laporte (NOAA GHCN station USC00124837), about 37 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.