December is one of the cooler months of the year in Horsforth, with average highs near 5.1°C and lows around 1.2°C (mean 3.2°C). It is a relatively wet time of year, averaging 94 mm of rainfall and 96% relative humidity across the period.
December is one of the cooler months of the year in Horsforth. Across 45 years of records, the warmest December in Horsforth was 2015 — when the month averaged 6.6°C — while the coldest was 1981 at -2.2°C. Typical December days reach 5.1°C with nights near 1.2°C. The long-term trend is warming, about 0.5°C per decade.
December is a relatively wet time of year in Horsforth, averaging 94 mm of rainfall. The wettest December on record was 2015 with 167 mm, while the driest was 2010 at 35 mm.
Relative humidity in Horsforth during December averages 96%. The most humid December was 2010 at 98%, and the least humid was 2011 at 95%.
December receives about 0.5 kWh/m²/day of solar energy in Horsforth. The sunniest Decembers were 2017, 2019 and 2022, among others at 0.6 kWh/m²/day, and the cloudiest were 1986, 2002 and 2015, among others at 0.4.
Average wind speed in Horsforth during December is 3.8 m/s. The windiest December was 2015 at 5.2 m/s, while the calmest was 2010 at 2.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 2.8°C | 2.5°C | 3.0°C | 3.6°C | 4.2°C | +1.4°C |
| Avg High | 4.8°C | 4.6°C | 5.0°C | 5.6°C | 6.0°C | +1.2°C |
| Avg Low | 0.8°C | 0.5°C | 1.1°C | 1.6°C | 2.4°C | +1.6°C |
| Avg Rain | 88 mm | 93 mm | 86 mm | 93 mm | 121 mm | +33 mm |
December temperatures in Horsforth have risen by about 2.2°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -11.4°C (1981) to a record high of 12.4°C (2015).
Rainfall in December is a relatively wet time of year, averaging 94 mm, with a wettest year of 167 mm.
A quieter season to visit Horsforth
If your dates are flexible, the more temperate months of July and August tend to be the most comfortable for visiting Horsforth. That said, December — with days averaging 5.1°C and nights around 1.2°C (mean 3.2°C) and higher rainfall (94 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 | 6.8°C | 5.1°C | 3.4°C | 12.4°C | -2.9°C | 130 mm | 96% | 4 m/s | — |
| 2024 | 7.4°C | 5.6°C | 3.8°C | 11.3°C | -0.8°C | 91 mm | 95% | 4.5 m/s | 0.5 |
| 2023 | 6.7°C | 4.8°C | 3.0°C | 11.3°C | -2.4°C | 163 mm | 96% | 4.8 m/s | 0.5 |
| 2022 | 4.1°C | 2.1°C | 0.1°C | 8.9°C | -5.5°C | 102 mm | 97% | 3.2 m/s | 0.6 |
| 2021 | 6.1°C | 4.1°C | 2.1°C | 11.8°C | -3.0°C | 100 mm | 96% | 3.3 m/s | 0.5 |
| 2020 | 5.0°C | 3.4°C | 1.8°C | 10.7°C | -3.1°C | 139 mm | 97% | 3.4 m/s | 0.5 |
| 2019 | 5.9°C | 4.2°C | 2.5°C | 10.7°C | -2.6°C | 89 mm | 97% | 3.9 m/s | 0.6 |
| 2018 | 6.5°C | 4.7°C | 2.8°C | 10.6°C | -3.0°C | 115 mm | 97% | 3.5 m/s | 0.5 |
| 2017 | 4.9°C | 2.9°C | 1.0°C | 10.7°C | -3.7°C | 68 mm | 97% | 3.7 m/s | 0.6 |
| 2016 | 6.7°C | 4.9°C | 3.1°C | 11.2°C | -1.9°C | 47 mm | 97% | 3.5 m/s | 0.6 |
| 2015 🔥 🌧️ | 8.9°C | 6.6°C | 4.2°C | 12.4°C | -0.4°C | 167 mm | 95% | 5.2 m/s | 0.4 |
| 2014 | 5.5°C | 3.4°C | 1.4°C | 10.7°C | -2.5°C | 73 mm | 96% | 4.4 m/s | 0.6 |
| 2013 | 6.9°C | 4.7°C | 2.5°C | 10.9°C | -1.3°C | 82 mm | 95% | 5 m/s | 0.6 |
| 2012 | 4.3°C | 2.4°C | 0.5°C | 10.0°C | -3.4°C | 146 mm | 97% | 3.9 m/s | 0.6 |
| 2011 | 6.0°C | 4.0°C | 2.0°C | 10.4°C | -3.2°C | 110 mm | 95% | 5.1 m/s | 0.6 |
| 2010 | 0.6°C | -1.7°C | -3.9°C | 5.5°C | -9.0°C | 35 mm | 98% | 2.4 m/s | 0.6 |
| 2009 | 3.3°C | 1.6°C | -0.1°C | 9.1°C | -5.6°C | 80 mm | 97% | 3.1 m/s | 0.6 |
| 2008 | 4.0°C | 2.0°C | 0.0°C | 9.8°C | -4.1°C | 72 mm | 97% | 3.1 m/s | 0.6 |
| 2007 | 5.0°C | 3.0°C | 1.1°C | 11.4°C | -3.9°C | 91 mm | 97% | 3.9 m/s | 0.5 |
| 2006 | 6.9°C | 4.9°C | 2.9°C | 11.6°C | -0.8°C | 118 mm | 96% | 4.2 m/s | 0.5 |
| 2005 | 5.4°C | 3.3°C | 1.2°C | 9.0°C | -3.6°C | 63 mm | 97% | 3.2 m/s | 0.6 |
| 2004 | 6.2°C | 4.0°C | 1.8°C | 9.6°C | -2.8°C | 52 mm | 96% | 3.8 m/s | 0.6 |
| 2003 | 5.1°C | 2.8°C | 0.5°C | 10.3°C | -4.2°C | 90 mm | 96% | 3.3 m/s | 0.5 |
| 2002 | 4.4°C | 3.0°C | 1.6°C | 9.5°C | -2.1°C | 136 mm | 96% | 3.3 m/s | 0.4 |
| 2001 | 4.8°C | 2.2°C | -0.3°C | 11.2°C | -3.8°C | 54 mm | 96% | 3.3 m/s | 0.6 |
| 2000 | 4.8°C | 3.4°C | 1.9°C | 11.2°C | -4.2°C | 103 mm | 96% | 4 m/s | 0.5 |
| 1999 | 4.6°C | 2.5°C | 0.4°C | 10.0°C | -5.9°C | 120 mm | 95% | 4.8 m/s | 0.6 |
| 1998 | 5.8°C | 3.8°C | 1.7°C | 11.9°C | -3.3°C | 74 mm | 97% | 4 m/s | 0.5 |
| 1997 | 5.9°C | 4.1°C | 2.4°C | 10.8°C | -3.4°C | 115 mm | 97% | 4 m/s | 0.5 |
| 1996 | 3.0°C | 1.2°C | -0.6°C | 8.1°C | -3.5°C | 79 mm | 96% | 3.4 m/s | 0.5 |
| 1995 | 2.1°C | 0.3°C | -1.6°C | 8.0°C | -9.4°C | 64 mm | 96% | 3 m/s | 0.5 |
| 1994 | 6.3°C | 4.1°C | 1.9°C | 12.2°C | -2.7°C | 126 mm | 96% | 4.6 m/s | 0.5 |
| 1993 | 4.8°C | 2.7°C | 0.7°C | 10.7°C | -4.4°C | 122 mm | 96% | 4.8 m/s | 0.5 |
| 1992 | 3.7°C | 1.7°C | -0.4°C | 10.7°C | -6.7°C | 77 mm | 97% | 3.3 m/s | 0.5 |
| 1991 | 4.8°C | 2.6°C | 0.4°C | 10.4°C | -7.8°C | 51 mm | 96% | 3.4 m/s | 0.6 |
| 1990 | 4.5°C | 2.4°C | 0.3°C | 9.6°C | -2.3°C | 106 mm | 95% | 4.2 m/s | 0.5 |
| 1989 | 4.1°C | 2.2°C | 0.3°C | 9.5°C | -3.1°C | 100 mm | 97% | 3 m/s | 0.5 |
| 1988 | 7.2°C | 5.3°C | 3.4°C | 10.0°C | -1.3°C | 53 mm | 96% | 4.4 m/s | 0.5 |
| 1987 | 5.3°C | 3.6°C | 2.0°C | 11.0°C | -4.5°C | 62 mm | 96% | 3.5 m/s | 0.5 |
| 1986 | 5.8°C | 3.5°C | 1.3°C | 11.3°C | -2.7°C | 131 mm | 96% | 4.9 m/s | 0.4 |
| 1985 | 5.8°C | 4.0°C | 2.3°C | 11.5°C | -7.5°C | 92 mm | 96% | 4 m/s | 0.4 |
| 1984 | 5.1°C | 3.3°C | 1.5°C | 10.4°C | -4.3°C | 57 mm | 96% | 3.5 m/s | 0.5 |
| 1983 | 5.6°C | 3.5°C | 1.3°C | 10.9°C | -3.7°C | 139 mm | 96% | 4.3 m/s | — |
| 1982 | 4.1°C | 2.0°C | -0.1°C | 9.4°C | -3.6°C | 88 mm | 96% | 4 m/s | — |
| 1981 ❄️ | 0.3°C | -2.2°C | -4.7°C | 8.3°C | -11.4°C | 66 mm | 97% | 2.8 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 5.1°C with lows near 1.2°C (mean 3.2°C), based on 45 years of NASA POWER data.
December averages 94 mm of rainfall in Horsforth, a relatively wet time of year. The wettest on record was 167 mm in 2015.
The hottest December reached 12.4°C in 2015. The coldest dipped to -11.4°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 4.2°C to 6.2°C and overnight lows from 0.1°C to 2.5°C over the same span.
December is one of the cooler months of the year in Horsforth and a relatively wet time of year, so plan for around 5.1°C daytime highs and 1.2°C at night.
Not quite — December is the 3rd coolest month in Horsforth, averaging 3.2°C.
For December in Horsforth, pack warm layers and a jacket for chilly mornings, with typical highs of 5.1°C and lows of 1.2°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 96% — quite humid.
Average wind speed in December is 3.8 m/s. The windiest December on record averaged 5.2 m/s (2015).
The wettest December on record was 2015 with 167 mm. On average, December sees 94 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 Horsforth 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.
