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Grimsby, England climate
BWk Cold desert
Grimsby has a mildly seasonal cool-temperate climate (Cold desert, Köppen BWk). The hottest month is August with an average daily high near 20°C, while the coldest is January averaging around 2°C at night. Precipitation totals about 1 mm a year and is strongly seasonal — July alone averages 0 mm while January barely receives 0 mm. At latitude 53°N, day length swings from 7.2 hours in midwinter to 16.8 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)Grimsby climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 8 | 10 | 12 | 15 | 18 | 20 | 20 | 18 | 14 | 10 | 8 |
| Avg temp (°C) | 5 | 5 | 6 | 8 | 11 | 14 | 16 | 16 | 14 | 11 | 7 | 5 |
| Avg low (°C) | 2 | 2 | 3 | 5 | 8 | 10 | 12 | 12 | 11 | 8 | 5 | 2 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 7 | 8 | 10 | 12 | 15 | 18 |
| Avg temp (°C) | 5 | 5 | 6 | 8 | 11 | 14 |
| Avg low (°C) | 2 | 2 | 3 | 5 | 8 | 10 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 20 | 20 | 18 | 14 | 10 | 8 |
| Avg temp (°C) | 16 | 16 | 14 | 11 | 7 | 5 |
| Avg low (°C) | 12 | 12 | 11 | 8 | 5 | 2 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 0 | 0 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 79 | 79 | 75 | 71 | 76 | 74 | 73 | 75 | 79 | 81 | 80 |
| Relative humidity (%) | 91 | 89 | 86 | 84 | 82 | 83 | 83 | 83 | 85 | 87 | 91 | 92 |
| Wind speed (km/h) | 19.3 | 18.6 | 16.8 | 14.7 | 13.9 | 12.5 | 12.1 | 13.4 | 15.2 | 17.6 | 18.2 | 18.6 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 79 | 79 | 75 | 71 | 76 |
| Relative humidity (%) | 91 | 89 | 86 | 84 | 82 | 83 |
| Wind speed (km/h) | 19.3 | 18.6 | 16.8 | 14.7 | 13.9 | 12.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 74 | 73 | 75 | 79 | 81 | 80 |
| Relative humidity (%) | 83 | 83 | 85 | 87 | 91 | 92 |
| Wind speed (km/h) | 12.1 | 13.4 | 15.2 | 17.6 | 18.2 | 18.6 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 28 years of daily observations at Donna Nook, a weather station, about 14 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.