Cumnock climate — normals and trends
Cumnock (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 8.3 °C and it receives 1,180 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 (13.8 °C on average) and the coldest is January (3.3 °C). Rainfall peaks in December.
Cumnock averages 45 frost days, 0 hot days (≥ 30 °C) and 190 rainy days per year.
Cumnock has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The number of frost days there went from about 63 to 27 per year over the period.
The hottest day of the period reached 29.2 °C (on 29 July 1948) and the coldest -16.8 °C (on 27 December 1995).
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
CumnockScotland
- coords
- 55.45°, -4.27°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.3°C
Average daily high
10.9°C
Average daily low
5.6°C
Annual rainfall
1,180mm
Sunshine / day
6.9h
Mean relative humidity
84%
Average peak wind
22.1km/h
Seasonal range
10.5°C
Frost days (< 0 °C)
45 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
190 d/yr
Annual snowfall
45.6 cm
Average feels-like high
7.8 °C
Average feels-like low
2.2 °C
Average peak gust
46.3 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
9.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.43 · 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
29.2 °C
29 July 1948
Coldest day
-16.8 °C
27 December 1995
Wettest day
64 mm
10 August 2004
Windiest day
75.4 km/h
27 December 1998
Strongest gust
166.3 km/h
27 December 1998
Hottest feels-like
33.1 °C
29 July 1948
Coldest feels-like
-21.3 °C
27 December 1995
Snowiest day
13.4 cm
20 January 1973
Sunniest day
16.9 h
20 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 | 5.7 °C | +0.4 °C | 63 mm | -52 mm |
| Feb | 6.8 °C | +1.2 °C | 83 mm | -10 mm |
| Mar | 10.4 °C | +2.9 °C | 46 mm | -44 mm |
| Apr | 13.8 °C | +3.8 °C | 41 mm | -34 mm |
| May | 16.2 °C | +3.1 °C | 82 mm | +4 mm |
| Jun | 16.1 °C | +0.7 °C | 112 mm | +33 mm |
| Jul | 18.1 °C | +1.5 °C | 103 mm | +16 mm |
| Aug | 18.4 °C | +1.9 °C | 87 mm | -14 mm |
| Sep | 14.9 °C | +0.4 °C | 113 mm | +9 mm |
| Oct | 11.8 °C | +0.2 °C | 145 mm | +27 mm |
| Nov | 9.0 °C | +1.0 °C | 167 mm | +52 mm |
| Dec | 7.7 °C | +1.6 °C | 148 mm | +24 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 Cumnock?
Cumnock has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 8.3 °C and it receives 1,180 mm of precipitation per year.
What is the hottest day ever recorded in Cumnock?
The hottest day measured in Cumnock between 1940 and 2025 was 29 July 1948, reaching 29.2 °C.
What is the coldest day in Cumnock?
The coldest day measured in Cumnock between 1940 and 2025 was 27 December 1995, at -16.8 °C.
Does it snow in Cumnock?
Yes. Cumnock gets on average 45.6 cm of snow per year and has around 45 frost days.
Has the climate of Cumnock warmed?
Yes: Cumnock warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Cumnock?
The wettest day measured in Cumnock between 1940 and 2025 was 10 August 2004, with 64 mm of rain in 24 hours.
What was the windiest day in Cumnock?
The windiest day measured in Cumnock between 1940 and 2025 was 27 December 1998, with winds reaching 75.4 km/h.
What is the warmest month in Cumnock?
The warmest month in Cumnock is July (13.8 °C on average); the coldest is January (3.3 °C).
How much does it rain in Cumnock?
Cumnock receives on average 1,180 mm of precipitation per year, spread over about 190 rainy days.
Is it sunny in Cumnock?
Cumnock gets on average 6.9 hours of sunshine per day, roughly 2,519 hours per year over 1940-2025.
What is the biggest single-day snowfall in Cumnock?
The heaviest 24-hour snowfall measured in Cumnock between 1940 and 2025 was 20 January 1973, with 13.4 cm.
Are there tropical nights in Cumnock?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Cumnock.
What was the most extreme apparent temperature in Cumnock?
In Cumnock, between 1940 and 2025, the highest apparent temperature reached 33.1 °C on 29 July 1948, and the lowest was -21.3 °C on 27 December 1995.
Compare Cumnock with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Cumnock