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Newtownabbey, Northern Ireland climate
Cfb Oceanic / temperate
Newtownabbey has a mildly seasonal cool-temperate climate (Oceanic / temperate, Köppen Cfb). The hottest month is July with an average daily high near 67°F, while the coldest is January averaging around 36°F at night. Precipitation is fairly even year-round, totalling about 39 inches. At latitude 55°N, day length swings from 7.0 hours in midwinter to 17.0 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 figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsNewtownabbey climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 46 | 48 | 51 | 55 | 60 | 64 | 67 | 66 | 62 | 56 | 51 | 47 |
| Avg temp (°F) | 41 | 42 | 44 | 48 | 52 | 57 | 60 | 59 | 56 | 51 | 46 | 42 |
| Avg low (°F) | 36 | 36 | 38 | 41 | 45 | 50 | 53 | 53 | 50 | 45 | 41 | 37 |
| Precipitation (in) | 3.5 | 2.9 | 2.9 | 2.5 | 2.7 | 2.9 | 3.0 | 3.4 | 2.9 | 3.9 | 4.2 | 3.8 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°F) | 46 | 48 | 51 | 55 | 60 | 64 |
| Avg temp (°F) | 41 | 42 | 44 | 48 | 52 | 57 |
| Avg low (°F) | 36 | 36 | 38 | 41 | 45 | 50 |
| Precipitation (in) | 3.5 | 2.9 | 2.9 | 2.5 | 2.7 | 2.9 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°F) | 67 | 66 | 62 | 56 | 51 | 47 |
| Avg temp (°F) | 60 | 59 | 56 | 51 | 46 | 42 |
| Avg low (°F) | 53 | 53 | 50 | 45 | 41 | 37 |
| Precipitation (in) | 3.0 | 3.4 | 2.9 | 3.9 | 4.2 | 3.8 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 20 | 17 | 18 | 16 | 16 | 14 | 16 | 18 | 16 | 18 | 21 | 20 |
| Days with low ≤ 32°F (days) | 6 | 5 | 4 | 1 | 0.0 | — | — | — | — | 0.1 | 2 | 5 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 20 | 17 | 18 | 16 | 16 | 14 |
| Days with low ≤ 32°F (days) | 6 | 5 | 4 | 1 | 0.0 | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 16 | 18 | 16 | 18 | 21 | 20 |
| Days with low ≤ 32°F (days) | — | — | — | 0.1 | 2 | 5 |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 79 | 78 | 76 | 73 | 77 | 78 | 77 | 76 | 78 | 79 | 78 |
| Clear days (≤ 30% cloud) | 1 | 1 | 1 | 1 | 2 | 2 | 1 | 1 | 1 | 0.8 | 1 | 1 |
| Partly cloudy days (30–70%) | 7 | 7 | 8 | 8 | 9 | 7 | 7 | 9 | 9 | 8 | 7 | 7 |
| Cloudy days (≥ 70%) | 22 | 20 | 22 | 20 | 20 | 21 | 23 | 21 | 20 | 22 | 22 | 23 |
| Relative humidity (%) | 90 | 90 | 89 | 86 | 85 | 85 | 86 | 87 | 88 | 88 | 90 | 91 |
| Wind speed (mph) | 13.5 | 13.1 | 11.8 | 10.2 | 9.4 | 8.5 | 8.2 | 8.7 | 10.2 | 11.9 | 12.8 | 13.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 79 | 79 | 78 | 76 | 73 | 77 |
| Clear days (≤ 30% cloud) | 1 | 1 | 1 | 1 | 2 | 2 |
| Partly cloudy days (30–70%) | 7 | 7 | 8 | 8 | 9 | 7 |
| Cloudy days (≥ 70%) | 22 | 20 | 22 | 20 | 20 | 21 |
| Relative humidity (%) | 90 | 90 | 89 | 86 | 85 | 85 |
| Wind speed (mph) | 13.5 | 13.1 | 11.8 | 10.2 | 9.4 | 8.5 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 78 | 77 | 76 | 78 | 79 | 78 |
| Clear days (≤ 30% cloud) | 1 | 1 | 1 | 0.8 | 1 | 1 |
| Partly cloudy days (30–70%) | 7 | 9 | 9 | 8 | 7 | 7 |
| Cloudy days (≥ 70%) | 23 | 21 | 20 | 22 | 22 | 23 |
| Relative humidity (%) | 86 | 87 | 88 | 88 | 90 | 91 |
| Wind speed (mph) | 8.2 | 8.7 | 10.2 | 11.9 | 12.8 | 13.1 |
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 29 years of daily observations at Stormont Castle, a weather station, about 8 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.