December is one of the cooler months of the year in Newcastle under Lyme, with average highs near 6.2°C and lows around 1.8°C (mean 4°C). It is a relatively wet time of year, averaging 85 mm of rainfall and 95% relative humidity across the period.
December is one of the cooler months of the year in Newcastle under Lyme. Across 45 years of records, the warmest December in Newcastle under Lyme was 2015 — when the month averaged 8°C — while the coldest was 1981 at -1.2°C. Typical December days reach 6.2°C with nights near 1.8°C. The long-term trend is warming, about 0.5°C per decade.
December is a relatively wet time of year in Newcastle under Lyme, averaging 85 mm of rainfall. The wettest December on record was 2012 with 144 mm, while the driest was 2016 at 34 mm.
Relative humidity in Newcastle under Lyme during December averages 95%. The most humid December was 2010 at 97%, and the least humid was 2011 at 93%.
December receives about 0.5 kWh/m²/day of solar energy in Newcastle under Lyme. The sunniest Decembers were 2008, 2010 and 2022, among others at 0.6 kWh/m²/day, and the cloudiest were 2011, 2015 and 2021, among others at 0.4.
Average wind speed in Newcastle under Lyme during December is 3.5 m/s. The windiest December was 2015 at 4.9 m/s, while the calmest was 2010 at 2.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 3.6°C | 3.3°C | 3.8°C | 4.5°C | 5.1°C | +1.5°C |
| Avg High | 5.8°C | 5.5°C | 6.0°C | 6.8°C | 7.1°C | +1.3°C |
| Avg Low | 1.5°C | 1.1°C | 1.7°C | 2.3°C | 3.0°C | +1.5°C |
| Avg Rain | 80 mm | 83 mm | 78 mm | 84 mm | 108 mm | +28 mm |
December temperatures in Newcastle under Lyme have risen by about 2.2°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -10.4°C (1981) to a record high of 13.4°C (1994).
Rainfall in December is a relatively wet time of year, averaging 85 mm, with a wettest year of 144 mm.
A quieter season to visit Newcastle under Lyme
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Newcastle under Lyme. That said, December — with days averaging 6.2°C and nights around 1.8°C (mean 4°C) and higher rainfall (85 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 7.9°C | 5.7°C | 3.5°C | 13.4°C | -1.5°C | 121 mm | 96% | 3.7 m/s | — |
| 2024 | 8.2°C | 6.2°C | 4.1°C | 12.8°C | -0.8°C | 86 mm | 95% | 3.8 m/s | 0.5 |
| 2023 | 7.8°C | 5.8°C | 3.7°C | 12.4°C | -2.8°C | 136 mm | 95% | 4.3 m/s | 0.5 |
| 2022 | 5.2°C | 3.1°C | 0.9°C | 11.8°C | -5.1°C | 77 mm | 97% | 2.9 m/s | 0.6 |
| 2021 | 7.4°C | 5.4°C | 3.5°C | 13.1°C | -2.7°C | 101 mm | 95% | 3.3 m/s | 0.4 |
| 2020 | 6.3°C | 4.3°C | 2.2°C | 11.7°C | -2.3°C | 125 mm | 96% | 3.3 m/s | 0.5 |
| 2019 | 7.1°C | 4.8°C | 2.6°C | 11.9°C | -1.7°C | 79 mm | 96% | 3.6 m/s | 0.5 |
| 2018 | 7.9°C | 5.7°C | 3.6°C | 12.2°C | -2.9°C | 103 mm | 96% | 3.4 m/s | 0.5 |
| 2017 | 6.3°C | 4.1°C | 1.9°C | 11.6°C | -4.0°C | 82 mm | 96% | 3.4 m/s | 0.5 |
| 2016 | 7.5°C | 5.3°C | 3.1°C | 12.6°C | -1.4°C | 34 mm | 97% | 2.9 m/s | 0.5 |
| 2015 🔥 | 10.5°C | 8.0°C | 5.5°C | 13.1°C | 1.3°C | 124 mm | 93% | 4.9 m/s | 0.4 |
| 2014 | 6.7°C | 4.3°C | 2.0°C | 11.8°C | -3.1°C | 71 mm | 95% | 3.6 m/s | 0.5 |
| 2013 | 8.1°C | 5.4°C | 2.7°C | 11.8°C | 0.2°C | 60 mm | 94% | 4.3 m/s | 0.5 |
| 2012 🌧️ | 5.7°C | 3.5°C | 1.3°C | 11.2°C | -3.5°C | 144 mm | 96% | 3.6 m/s | 0.5 |
| 2011 | 7.4°C | 5.1°C | 2.8°C | 11.7°C | -0.1°C | 98 mm | 93% | 4.3 m/s | 0.4 |
| 2010 | 1.2°C | -0.9°C | -3.0°C | 6.0°C | -7.8°C | 43 mm | 97% | 2.3 m/s | 0.6 |
| 2009 | 4.1°C | 2.2°C | 0.3°C | 10.3°C | -4.4°C | 85 mm | 97% | 2.9 m/s | 0.5 |
| 2008 | 4.9°C | 2.6°C | 0.4°C | 10.9°C | -3.8°C | 62 mm | 97% | 2.6 m/s | 0.6 |
| 2007 | 6.2°C | 4.0°C | 1.7°C | 12.6°C | -3.6°C | 86 mm | 95% | 3.8 m/s | 0.5 |
| 2006 | 8.0°C | 5.7°C | 3.5°C | 12.6°C | -0.2°C | 101 mm | 94% | 3.8 m/s | 0.5 |
| 2005 | 6.2°C | 4.0°C | 1.8°C | 10.2°C | -3.3°C | 56 mm | 96% | 2.9 m/s | 0.5 |
| 2004 | 7.0°C | 4.8°C | 2.6°C | 10.8°C | -3.1°C | 44 mm | 95% | 3.1 m/s | 0.5 |
| 2003 | 6.0°C | 3.6°C | 1.3°C | 11.5°C | -3.9°C | 92 mm | 96% | 3.1 m/s | 0.5 |
| 2002 | 5.8°C | 4.1°C | 2.5°C | 10.9°C | -2.2°C | 114 mm | 96% | 3.3 m/s | 0.5 |
| 2001 | 5.3°C | 2.8°C | 0.2°C | 12.1°C | -3.3°C | 46 mm | 96% | 3.1 m/s | 0.6 |
| 2000 | 6.1°C | 4.5°C | 2.9°C | 12.3°C | -3.3°C | 95 mm | 96% | 4 m/s | 0.5 |
| 1999 | 5.9°C | 3.9°C | 1.9°C | 11.3°C | -3.8°C | 108 mm | 94% | 4.3 m/s | 0.5 |
| 1998 | 6.9°C | 4.5°C | 2.0°C | 13.0°C | -3.2°C | 79 mm | 96% | 3.5 m/s | 0.5 |
| 1997 | 6.6°C | 4.5°C | 2.5°C | 12.0°C | -2.4°C | 102 mm | 96% | 3.7 m/s | 0.4 |
| 1996 | 3.6°C | 1.5°C | -0.5°C | 9.7°C | -4.2°C | 53 mm | 96% | 3.1 m/s | 0.5 |
| 1995 | 2.7°C | 0.6°C | -1.5°C | 10.9°C | -7.9°C | 69 mm | 95% | 2.8 m/s | 0.5 |
| 1994 | 7.6°C | 5.2°C | 2.8°C | 13.4°C | -2.4°C | 107 mm | 95% | 4 m/s | 0.5 |
| 1993 | 6.1°C | 3.7°C | 1.4°C | 11.9°C | -3.1°C | 119 mm | 94% | 4.4 m/s | 0.4 |
| 1992 | 4.8°C | 2.4°C | 0.1°C | 11.9°C | -6.4°C | 67 mm | 96% | 3 m/s | 0.5 |
| 1991 | 5.6°C | 3.6°C | 1.5°C | 11.9°C | -4.2°C | 37 mm | 95% | 3.2 m/s | 0.5 |
| 1990 | 5.2°C | 2.8°C | 0.4°C | 11.1°C | -2.3°C | 87 mm | 95% | 3.6 m/s | 0.5 |
| 1989 | 4.8°C | 2.9°C | 1.1°C | 10.8°C | -2.8°C | 110 mm | 96% | 3 m/s | 0.5 |
| 1988 | 8.1°C | 6.1°C | 4.2°C | 11.6°C | -2.1°C | 38 mm | 95% | 3.7 m/s | 0.4 |
| 1987 | 6.0°C | 4.2°C | 2.3°C | 11.9°C | -3.6°C | 42 mm | 96% | 3.4 m/s | 0.5 |
| 1986 | 6.9°C | 4.4°C | 1.8°C | 13.0°C | -2.0°C | 116 mm | 94% | 4.4 m/s | 0.5 |
| 1985 | 7.1°C | 5.2°C | 3.2°C | 12.7°C | -5.9°C | 92 mm | 95% | 3.6 m/s | 0.5 |
| 1984 | 6.0°C | 3.9°C | 1.8°C | 11.2°C | -2.5°C | 74 mm | 96% | 3 m/s | 0.5 |
| 1983 | 6.7°C | 4.3°C | 2.0°C | 12.1°C | -2.8°C | 97 mm | 95% | 3.9 m/s | — |
| 1982 | 5.3°C | 3.0°C | 0.6°C | 10.5°C | -3.4°C | 76 mm | 95% | 3.6 m/s | — |
| 1981 ❄️ | 1.3°C | -1.2°C | -3.6°C | 9.7°C | -10.4°C | 71 mm | 97% | 2.9 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 6.2°C with lows near 1.8°C (mean 4°C), based on 45 years of NASA POWER data.
December averages 85 mm of rainfall in Newcastle under Lyme, a relatively wet time of year. The wettest on record was 144 mm in 2012.
The hottest December reached 13.4°C in 1994. The coldest dipped to -10.4°C in 1981.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 2.2°C. Daytime highs moved from 5.3°C to 7.3°C and overnight lows from 0.8°C to 3.1°C over the same span.
December is one of the cooler months of the year in Newcastle under Lyme and a relatively wet time of year, so plan for around 6.2°C daytime highs and 1.8°C at night.
Not quite — December is the 3rd coolest month in Newcastle under Lyme, averaging 4°C.
For December in Newcastle under Lyme, pack warm layers and a jacket for chilly mornings, with typical highs of 6.2°C and lows of 1.8°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 95% — quite humid.
Average wind speed in December is 3.5 m/s. The windiest December on record averaged 4.9 m/s (2015).
The wettest December on record was 2012 with 144 mm. On average, December sees 85 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Newcastle under Lyme behaves each December, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for December specifically, along with year-by-year records and how the month has changed over the decades.
