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Heidenheim an der Brenz, Baden-Württemberg climate
Cfb Oceanic / temperate
Heidenheim an der Brenz has a seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is August with an average daily high near 22°C, while the coldest is January averaging around −3°C at night. Around 1047 mm of precipitation falls each year, peaking in July (127 mm) and easing off in April (61 mm).
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 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 countsHeidenheim an der Brenz climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 3 | 7 | 12 | 16 | 20 | 22 | 22 | 17 | 12 | 6 | 3 |
| Avg temp (°C) | −1 | 0 | 4 | 8 | 12 | 15 | 17 | 17 | 13 | 9 | 3 | 0 |
| Avg low (°C) | −3 | −3 | 0 | 4 | 8 | 11 | 13 | 13 | 9 | 5 | 1 | −2 |
| Precipitation (mm) | 76 | 61 | 79 | 61 | 109 | 100 | 127 | 98 | 82 | 85 | 83 | 86 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 2 | 3 | 7 | 12 | 16 | 20 |
| Avg temp (°C) | −1 | 0 | 4 | 8 | 12 | 15 |
| Avg low (°C) | −3 | −3 | 0 | 4 | 8 | 11 |
| Precipitation (mm) | 76 | 61 | 79 | 61 | 109 | 100 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 22 | 22 | 17 | 12 | 6 | 3 |
| Avg temp (°C) | 17 | 17 | 13 | 9 | 3 | 0 |
| Avg low (°C) | 13 | 13 | 9 | 5 | 1 | −2 |
| Precipitation (mm) | 127 | 98 | 82 | 85 | 83 | 86 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 15 | 14 | 15 | 13 | 15 | 15 | 15 | 14 | 13 | 15 | 15 | 17 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | 0.0 | 0.3 | 0.4 | — | — | — | — |
| Days with low ≤ 0°C (days) | 23 | 20 | 15 | 7 | 0.4 | — | — | — | 0.1 | 3 | 13 | 22 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 15 | 14 | 15 | 13 | 15 | 15 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | 0.0 |
| Days with low ≤ 0°C (days) | 23 | 20 | 15 | 7 | 0.4 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 15 | 14 | 13 | 15 | 15 | 17 |
| Days with high ≥ 32°C (days) | 0.3 | 0.4 | — | — | — | — |
| Days with low ≤ 0°C (days) | — | — | 0.1 | 3 | 13 | 22 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 72 | 69 | 68 | 70 | 68 | 64 | 62 | 64 | 70 | 75 | 76 |
| Clear days (≤ 30% cloud) | 3 | 4 | 5 | 5 | 4 | 4 | 5 | 6 | 6 | 4 | 2 | 2 |
| Partly cloudy days (30–70%) | 8 | 6 | 7 | 8 | 8 | 10 | 10 | 10 | 8 | 8 | 9 | 7 |
| Cloudy days (≥ 70%) | 20 | 18 | 19 | 17 | 19 | 16 | 15 | 15 | 16 | 19 | 20 | 21 |
| Relative humidity (%) | 92 | 89 | 83 | 78 | 77 | 77 | 76 | 76 | 80 | 86 | 91 | 93 |
| Wind speed (km/h) | 11.1 | 10.9 | 10.9 | 8.9 | 8.5 | 7.6 | 7.5 | 7.0 | 7.7 | 8.5 | 8.9 | 10.5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 72 | 69 | 68 | 70 | 68 |
| Clear days (≤ 30% cloud) | 3 | 4 | 5 | 5 | 4 | 4 |
| Partly cloudy days (30–70%) | 8 | 6 | 7 | 8 | 8 | 10 |
| Cloudy days (≥ 70%) | 20 | 18 | 19 | 17 | 19 | 16 |
| Relative humidity (%) | 92 | 89 | 83 | 78 | 77 | 77 |
| Wind speed (km/h) | 11.1 | 10.9 | 10.9 | 8.9 | 8.5 | 7.6 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 64 | 62 | 64 | 70 | 75 | 76 |
| Clear days (≤ 30% cloud) | 5 | 6 | 6 | 4 | 2 | 2 |
| Partly cloudy days (30–70%) | 10 | 10 | 8 | 8 | 9 | 7 |
| Cloudy days (≥ 70%) | 15 | 15 | 16 | 19 | 20 | 21 |
| Relative humidity (%) | 76 | 76 | 80 | 86 | 91 | 93 |
| Wind speed (km/h) | 7.5 | 7.0 | 7.7 | 8.5 | 8.9 | 10.5 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Stotten, a weather station, about 21 km from the city centre. The underlying daily records come from NOAA's global station network.
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.