December is one of the cooler months of the year in Doylestown, with average highs near 4.9°C and lows around -3.4°C (mean 0.8°C). It is about average for rainfall, averaging 100 mm of rainfall and 86% relative humidity across the period.
December is one of the cooler months of the year in Doylestown. Across 45 years of records, the warmest December in Doylestown was 2015 — when the month averaged 7.7°C — while the coldest was 1989 at -6.1°C. Typical December days reach 4.9°C with nights near -3.4°C. The long-term trend is warming, about 0.5°C per decade.
December is about average for rainfall in Doylestown, averaging 100 mm of rainfall. The wettest December on record was 2023 with 222 mm, while the driest were 1988 and 1998 at 26 mm.
Relative humidity in Doylestown during December averages 86%. The most humid December was 1996 at 93%, and the least humid was 1998 at 77%.
December receives about 1.6 kWh/m²/day of solar energy in Doylestown. The sunniest Decembers were 2000 and 2001 at 1.9 kWh/m²/day, and the cloudiest were 1992 and 2014 at 1.3.
Average wind speed in Doylestown during December is 0.3 m/s. The windiest December was 2025 at 0.4 m/s, while the calmest was 2021 at 0.2 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | -0.7°C | 1.1°C | 0.3°C | 1.6°C | 1.4°C | +2.1°C |
| Avg High | 3.4°C | 5.3°C | 4.5°C | 5.6°C | 5.7°C | +2.3°C |
| Avg Low | -4.7°C | -3.1°C | -3.9°C | -2.4°C | -2.8°C | +1.9°C |
| Avg Rain | 77 mm | 101 mm | 112 mm | 103 mm | 110 mm | +33 mm |
December temperatures in Doylestown have risen by about 1.8°C between 1981–1985 and 2021–2025.
December has ranged from a record low of -19°C (1983) to a record high of 22.2°C (1998).
Rainfall in December is about average for rainfall, averaging 100 mm, with a wettest year of 222 mm.
A quieter season to visit Doylestown
If your dates are flexible, the more temperate months of August and June tend to be the most comfortable for visiting Doylestown. That said, December — with days averaging 4.9°C and nights around -3.4°C (mean 0.8°C) and higher rainfall (100 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 | 2.3°C | -1.8°C | -5.8°C | 13.2°C | -12.2°C | 74 mm | 81% | 0.4 m/s | — |
| 2024 | 5.2°C | 0.9°C | -3.4°C | 17.2°C | -14.1°C | 99 mm | 82% | 0.3 m/s | 1.7 |
| 2023 🌧️ | 8.1°C | 3.9°C | -0.2°C | 16.3°C | -5.5°C | 222 mm | 90% | 0.3 m/s | 1.4 |
| 2022 | 5.1°C | 0.7°C | -3.8°C | 14.1°C | -15.1°C | 115 mm | 86% | 0.3 m/s | 1.7 |
| 2021 | 8.5°C | 4.0°C | -0.4°C | 16.9°C | -6.3°C | 35 mm | 85% | 0.2 m/s | 1.7 |
| 2020 | 5.0°C | 0.8°C | -3.4°C | 16.2°C | -13.5°C | 113 mm | 88% | 0.3 m/s | 1.6 |
| 2019 | 4.6°C | 0.8°C | -3.0°C | 14.1°C | -11.4°C | 114 mm | 89% | 0.3 m/s | 1.5 |
| 2018 | 5.8°C | 2.0°C | -1.9°C | 16.0°C | -8.1°C | 152 mm | 90% | 0.3 m/s | 1.5 |
| 2017 | 3.0°C | -0.9°C | -4.8°C | 14.9°C | -15.1°C | 40 mm | 79% | 0.3 m/s | 1.6 |
| 2016 | 4.5°C | 0.4°C | -3.8°C | 16.1°C | -11.5°C | 72 mm | 83% | 0.3 m/s | 1.6 |
| 2015 🔥 | 11.8°C | 7.7°C | 3.6°C | 21.0°C | -4.4°C | 117 mm | 88% | 0.3 m/s | 1.4 |
| 2014 | 5.7°C | 1.9°C | -1.9°C | 14.8°C | -5.8°C | 102 mm | 87% | 0.3 m/s | 1.3 |
| 2013 | 4.0°C | -0.1°C | -4.2°C | 19.7°C | -12.2°C | 114 mm | 90% | 0.3 m/s | 1.4 |
| 2012 | 7.0°C | 3.1°C | -0.8°C | 17.1°C | -6.6°C | 131 mm | 88% | 0.3 m/s | 1.4 |
| 2011 | 7.7°C | 3.1°C | -1.4°C | 14.8°C | -5.6°C | 113 mm | 89% | 0.3 m/s | 1.7 |
| 2010 | 1.6°C | -1.9°C | -5.4°C | 16.5°C | -9.2°C | 78 mm | 81% | 0.3 m/s | 1.7 |
| 2009 | 3.6°C | -0.3°C | -4.2°C | 17.8°C | -12.3°C | 180 mm | 85% | 0.3 m/s | 1.6 |
| 2008 | 4.7°C | 0.2°C | -4.3°C | 16.7°C | -17.3°C | 159 mm | 88% | 0.3 m/s | 1.5 |
| 2007 | 3.2°C | -0.2°C | -3.5°C | 13.9°C | -12.3°C | 134 mm | 89% | 0.3 m/s | 1.4 |
| 2006 | 8.3°C | 3.7°C | -1.0°C | 20.2°C | -7.8°C | 60 mm | 86% | 0.3 m/s | 1.8 |
| 2005 | 2.5°C | -1.7°C | -5.8°C | 8.9°C | -17.1°C | 90 mm | 89% | 0.3 m/s | 1.6 |
| 2004 | 5.0°C | 0.7°C | -3.7°C | 14.1°C | -13.7°C | 91 mm | 86% | 0.3 m/s | 1.6 |
| 2003 | 4.4°C | 0.3°C | -3.8°C | 14.6°C | -11.1°C | 145 mm | 88% | 0.3 m/s | 1.6 |
| 2002 | 2.6°C | -1.4°C | -5.3°C | 13.6°C | -12.1°C | 113 mm | 88% | 0.3 m/s | 1.6 |
| 2001 | 9.0°C | 4.1°C | -0.7°C | 22.1°C | -9.5°C | 53 mm | 78% | 0.3 m/s | 1.9 |
| 2000 | 1.7°C | -2.6°C | -6.9°C | 17.3°C | -13.9°C | 96 mm | 79% | 0.3 m/s | 1.9 |
| 1999 | 6.1°C | 1.7°C | -2.8°C | 16.9°C | -10.5°C | 67 mm | 82% | 0.3 m/s | 1.7 |
| 1998 | 8.3°C | 3.3°C | -1.6°C | 22.2°C | -10.3°C | 26 mm | 77% | 0.3 m/s | 1.6 |
| 1997 | 5.0°C | 0.8°C | -3.4°C | 11.8°C | -11.8°C | 90 mm | 86% | 0.3 m/s | 1.7 |
| 1996 | 5.2°C | 1.8°C | -1.5°C | 13.6°C | -10.2°C | 210 mm | 93% | 0.3 m/s | 1.5 |
| 1995 | 0.5°C | -3.3°C | -7.0°C | 9.2°C | -12.2°C | 60 mm | 89% | 0.3 m/s | 1.8 |
| 1994 | 6.9°C | 2.2°C | -2.4°C | 16.0°C | -7.5°C | 71 mm | 85% | 0.3 m/s | 1.6 |
| 1993 | 4.0°C | -0.2°C | -4.3°C | 12.6°C | -12.3°C | 116 mm | 85% | 0.3 m/s | 1.5 |
| 1992 | 4.2°C | 0.4°C | -3.4°C | 13.0°C | -11.6°C | 124 mm | 87% | 0.3 m/s | 1.3 |
| 1991 | 5.8°C | 1.5°C | -2.8°C | 17.3°C | -10.8°C | 98 mm | 83% | 0.3 m/s | 1.7 |
| 1990 | 7.1°C | 2.4°C | -2.2°C | 17.3°C | -8.1°C | 148 mm | 86% | 0.3 m/s | 1.5 |
| 1989 ❄️ | -1.8°C | -6.1°C | -10.3°C | 6.5°C | -18.0°C | 28 mm | 82% | 0.3 m/s | 1.8 |
| 1988 | 3.6°C | -0.6°C | -4.9°C | 13.5°C | -14.7°C | 26 mm | 81% | 0.3 m/s | 1.7 |
| 1987 | 4.9°C | 1.1°C | -2.8°C | 13.3°C | -12.1°C | 46 mm | 86% | 0.3 m/s | 1.5 |
| 1986 | 5.0°C | 0.9°C | -3.1°C | 12.4°C | -8.1°C | 141 mm | 88% | 0.3 m/s | 1.6 |
| 1985 | 2.2°C | -1.9°C | -5.9°C | 9.5°C | -12.6°C | 34 mm | 84% | 0.3 m/s | 1.6 |
| 1984 | 7.1°C | 2.9°C | -1.3°C | 17.3°C | -6.7°C | 74 mm | 88% | 0.3 m/s | 1.6 |
| 1983 | 1.3°C | -2.4°C | -6.2°C | 14.2°C | -19.0°C | 196 mm | 88% | 0.3 m/s | — |
| 1982 | 7.0°C | 2.7°C | -1.5°C | 19.9°C | -10.5°C | 49 mm | 87% | 0.3 m/s | — |
| 1981 | 1.2°C | -2.6°C | -6.3°C | 8.6°C | -18.7°C | 101 mm | 90% | 0.3 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 4.9°C with lows near -3.4°C (mean 0.8°C), based on 45 years of NASA POWER data.
December averages 100 mm of rainfall in Doylestown, about average for rainfall. The wettest on record was 222 mm in 2023.
The hottest December reached 22.2°C in 1998. The coldest dipped to -19°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 1.8°C. Daytime highs moved from 3.8°C to 5.8°C and overnight lows from -4.2°C to -2.7°C over the same span.
December is one of the cooler months of the year in Doylestown and about average for rainfall, so plan for around 4.9°C daytime highs and -3.4°C at night.
Not quite — December is the 3rd coolest month in Doylestown, averaging 0.8°C.
For December in Doylestown, pack warm layers and a jacket for chilly mornings, with typical highs of 4.9°C and lows of -3.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in December averages 86% — quite humid.
Average wind speed in December is 0.3 m/s. The windiest December on record averaged 0.4 m/s (2025).
The wettest December on record was 2023 with 222 mm. On average, December sees 100 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 Doylestown 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.
