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Härnösand, Sweden climate
Dfb Warm-summer humid continental
Härnösand has a seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 21°C, while the coldest is February averaging around −8°C at night. Around 743 mm of precipitation falls each year, peaking in November (84 mm) and easing off in February (40 mm). At latitude 63°N, day length swings from 4.5 hours in midwinter to 19.5 hours at midsummer.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresHours of sunshine per day
Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)Härnösand climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | −1 | −1 | 3 | 8 | 13 | 18 | 21 | 20 | 15 | 8 | 3 | 0 |
| Avg temp (°C) | −4 | −4 | −1 | 3 | 8 | 13 | 17 | 15 | 11 | 5 | 1 | −3 |
| Avg low (°C) | −7 | −8 | −5 | −1 | 4 | 9 | 12 | 11 | 7 | 2 | −2 | −6 |
| Precipitation (mm) | 67 | 40 | 41 | 41 | 48 | 48 | 73 | 80 | 68 | 84 | 84 | 71 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | −1 | −1 | 3 | 8 | 13 | 18 |
| Avg temp (°C) | −4 | −4 | −1 | 3 | 8 | 13 |
| Avg low (°C) | −7 | −8 | −5 | −1 | 4 | 9 |
| Precipitation (mm) | 67 | 40 | 41 | 41 | 48 | 48 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 21 | 20 | 15 | 8 | 3 | 0 |
| Avg temp (°C) | 17 | 15 | 11 | 5 | 1 | −3 |
| Avg low (°C) | 12 | 11 | 7 | 2 | −2 | −6 |
| Precipitation (mm) | 73 | 80 | 68 | 84 | 84 | 71 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 14 | 12 | 11 | 9 | 11 | 11 | 12 | 12 | 13 | 14 | 16 | 15 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | — | 0.1 | — | — | — | — | — |
| Days with low ≤ 0°C (days) | 28 | 26 | 27 | 19 | 4 | 0.0 | — | — | 1 | 10 | 20 | 26 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 14 | 12 | 11 | 9 | 11 | 11 |
| Days with high ≥ 32°C (days) | — | — | — | — | — | — |
| Days with low ≤ 0°C (days) | 28 | 26 | 27 | 19 | 4 | 0.0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 12 | 12 | 13 | 14 | 16 | 15 |
| Days with high ≥ 32°C (days) | 0.1 | — | — | — | — | — |
| Days with low ≤ 0°C (days) | — | — | 1 | 10 | 20 | 26 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 70 | 64 | 64 | 67 | 66 | 67 | 66 | 67 | 69 | 71 | 70 |
| Relative humidity (%) | 93 | 93 | 90 | 85 | 83 | 82 | 84 | 84 | 85 | 88 | 90 | 92 |
| Wind speed (m/s) | 4.1 | 3.7 | 3.2 | 2.7 | 2.4 | 2.4 | 2.5 | 2.9 | 3.4 | 3.8 | 4.0 | 4.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 72 | 70 | 64 | 64 | 67 | 66 |
| Relative humidity (%) | 93 | 93 | 90 | 85 | 83 | 82 |
| Wind speed (m/s) | 4.1 | 3.7 | 3.2 | 2.7 | 2.4 | 2.4 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 67 | 66 | 67 | 69 | 71 | 70 |
| Relative humidity (%) | 84 | 84 | 85 | 88 | 90 | 92 |
| Wind speed (m/s) | 2.5 | 2.9 | 3.4 | 3.8 | 4.0 | 4.1 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Harnosand, a weather station, inside the city. 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.