Alnwick climate — normals and trends
Alnwick (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.9 °C and it receives 724 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (14.4 °C on average) and the coldest is January (4.1 °C). Rainfall peaks in August.
Alnwick averages 18 frost days, 0 hot days (≥ 30 °C) and 149 rainy days per year.
Alnwick has warmed by +1.3 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The number of frost days there went from about 30 to 6 per year over the period.
The hottest day of the period reached 28.5 °C (on 19 July 2022) and the coldest -12.6 °C (on 11 January 1982).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
AlnwickEngland
- coords
- 55.41°, -1.71°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.9°C
Average daily high
11.0°C
Average daily low
6.7°C
Annual rainfall
724mm
Sunshine / day
8.0h
Mean relative humidity
81%
Average peak wind
25.5km/h
Seasonal range
10.3°C
Frost days (< 0 °C)
18 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
149 d/yr
Annual snowfall
28.0 cm
Average feels-like high
7.7 °C
Average feels-like low
2.8 °C
Average peak gust
45.2 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
10.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.40 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
28.5 °C
19 July 2022
Coldest day
-12.6 °C
11 January 1982
Wettest day
49 mm
6 September 2008
Windiest day
71.2 km/h
28 January 2002
Strongest gust
134.6 km/h
27 November 2021
Hottest feels-like
27.7 °C
3 August 1990
Coldest feels-like
-17.4 °C
11 January 1982
Snowiest day
20.2 cm
19 February 1941
Sunniest day
16.5 h
29 June 2025
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 5.6 °C | -0.2 °C | 50 mm | -13 mm |
| Feb | 7.1 °C | +1.1 °C | 29 mm | -22 mm |
| Mar | 9.8 °C | +2.3 °C | 23 mm | -30 mm |
| Apr | 11.7 °C | +2.3 °C | 11 mm | -37 mm |
| May | 13.6 °C | +1.7 °C | 42 mm | -11 mm |
| Jun | 17.3 °C | +2.5 °C | 49 mm | -8 mm |
| Jul | 18.3 °C | +1.6 °C | 81 mm | +15 mm |
| Aug | 18.4 °C | +1.6 °C | 34 mm | -39 mm |
| Sep | 15.8 °C | +0.8 °C | 70 mm | +11 mm |
| Oct | 12.9 °C | +0.8 °C | 83 mm | +17 mm |
| Nov | 9.8 °C | +1.1 °C | 140 mm | +68 mm |
| Dec | 8.8 °C | +2.0 °C | 76 mm | +11 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Alnwick?
Alnwick has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.9 °C and it receives 724 mm of precipitation per year.
What is the hottest day ever recorded in Alnwick?
The hottest day measured in Alnwick between 1940 and 2025 was 19 July 2022, reaching 28.5 °C.
What is the coldest day in Alnwick?
The coldest day measured in Alnwick between 1940 and 2025 was 11 January 1982, at -12.6 °C.
Does it snow in Alnwick?
Yes. Alnwick gets on average 28.0 cm of snow per year and has around 18 frost days.
Has the climate of Alnwick warmed?
Yes: Alnwick warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Alnwick?
The wettest day measured in Alnwick between 1940 and 2025 was 6 September 2008, with 49 mm of rain in 24 hours.
What was the windiest day in Alnwick?
The windiest day measured in Alnwick between 1940 and 2025 was 28 January 2002, with winds reaching 71.2 km/h.
What is the warmest month in Alnwick?
The warmest month in Alnwick is July (14.4 °C on average); the coldest is January (4.1 °C).
How much does it rain in Alnwick?
Alnwick receives on average 724 mm of precipitation per year, spread over about 149 rainy days.
Is it sunny in Alnwick?
Alnwick gets on average 8.0 hours of sunshine per day, roughly 2,920 hours per year over 1940-2025.
What is the biggest single-day snowfall in Alnwick?
The heaviest 24-hour snowfall measured in Alnwick between 1940 and 2025 was 19 February 1941, with 20.2 cm.
Are there tropical nights in Alnwick?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Alnwick.
What was the most extreme apparent temperature in Alnwick?
In Alnwick, between 1940 and 2025, the highest apparent temperature reached 27.7 °C on 3 August 1990, and the lowest was -17.4 °C on 11 January 1982.
Compare Alnwick with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Alnwick