December is one of the cooler months of the year in Dumka, with average highs near 25°C and lows around 10.9°C (mean 18°C). It is one of the drier months, averaging 6 mm of rainfall and 60% relative humidity across the period.
December is one of the cooler months of the year in Dumka. Across 45 years of records, the warmest December in Dumka was 1988 — when the month averaged 20.9°C — while the coldest were 2007 and 2025 at 15.6°C. Typical December days reach 25°C with nights near 10.9°C. The long-term trend is cooling, about 0.5°C per decade.
December is one of the drier months in Dumka, averaging 6 mm of rainfall. The wettest December on record was 1981 with 39 mm, while the driest were 2016, 2020 and 2025, among others at 0 mm.
Relative humidity in Dumka during December averages 60%. The most humid December was 2021 at 81%, and the least humid was 1996 at 32%.
December receives about 3.5 kWh/m²/day of solar energy in Dumka. The sunniest December was 1990 at 4.2 kWh/m²/day, and the cloudiest was 2015 at 2.7.
Average wind speed in Dumka during December is 1.5 m/s. The windiest December was 2012 at 2.2 m/s, while the calmest was 2004 at 1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.9°C | 18.5°C | 17.3°C | 17.5°C | 17.2°C | -1.7°C |
| Avg High | 26.6°C | 26.2°C | 23.9°C | 24.3°C | 23.4°C | -3.2°C |
| Avg Low | 11.2°C | 10.8°C | 10.7°C | 10.8°C | 11.1°C | -0.1°C |
| Avg Rain | 11 mm | 5 mm | 2 mm | 7 mm | 7 mm | -4 mm |
December temperatures in Dumka have fallen by about 1.2°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 3.8°C (2012) to a record high of 31.2°C (1994).
Rainfall in December is one of the drier months, averaging 6 mm, with a wettest year of 39 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.9°C per decade while lows rose 0°C per decade, narrowing the gap between day and night.
One of the best times to visit Dumka
December is one of the best times to visit Dumka. Expect days averaging 25°C and nights around 10.9°C (mean 18°C) — cooler than Dumka's yearly average — with low rainfall (6 mm), so conditions are generally comfortable for sightseeing and outdoor plans.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 21.9°C | 15.6°C | 9.3°C | 23.8°C | 6.6°C | 0 mm | 79% | 1.5 m/s | — |
| 2024 | 23.4°C | 17.3°C | 11.3°C | 25.4°C | 6.1°C | 0 mm | 74% | 1.2 m/s | 3.3 |
| 2023 | 23.5°C | 17.9°C | 12.3°C | 27.4°C | 8.1°C | 32 mm | 78% | 1.5 m/s | 3.1 |
| 2022 | 25.5°C | 18.3°C | 11.1°C | 27.4°C | 8.3°C | 0 mm | 62% | 1.6 m/s | 3.2 |
| 2021 | 22.6°C | 17.3°C | 11.9°C | 25.9°C | 4.7°C | 11 mm | 81% | 1.4 m/s | 3.2 |
| 2020 | 23.4°C | 17.1°C | 10.8°C | 25.4°C | 5.8°C | 0 mm | 70% | 1.2 m/s | 2.9 |
| 2019 | 21.6°C | 16.0°C | 10.4°C | 25.2°C | 4.2°C | 6 mm | 80% | 1.7 m/s | 2.9 |
| 2018 | 24.9°C | 17.9°C | 10.8°C | 27.8°C | 5.8°C | 21 mm | 55% | 1.6 m/s | 3.2 |
| 2017 | 24.0°C | 17.9°C | 11.8°C | 26.5°C | 7.5°C | 5 mm | 74% | 1.4 m/s | 3.4 |
| 2016 | 25.2°C | 18.1°C | 11.0°C | 27.4°C | 8.3°C | 0 mm | 69% | 1.7 m/s | 3.3 |
| 2015 | 26.4°C | 19.7°C | 13.1°C | 30.6°C | 7.7°C | 1 mm | 52% | 1.3 m/s | 2.7 |
| 2014 | 24.6°C | 17.0°C | 9.5°C | 27.6°C | 6.4°C | 2 mm | 56% | 1.7 m/s | 3.2 |
| 2013 | 23.7°C | 17.4°C | 11.1°C | 25.6°C | 7.0°C | 0 mm | 73% | 1.3 m/s | 3.2 |
| 2012 | 24.0°C | 16.3°C | 8.5°C | 26.8°C | 3.8°C | 6 mm | 60% | 2.2 m/s | 3.1 |
| 2011 | 23.8°C | 17.2°C | 10.6°C | 26.6°C | 6.2°C | 0 mm | 68% | 1.1 m/s | 3.2 |
| 2010 | 24.7°C | 17.9°C | 11.2°C | 27.8°C | 6.6°C | 29 mm | 61% | 1.4 m/s | 3.3 |
| 2009 | 23.3°C | 17.0°C | 10.7°C | 25.8°C | 6.6°C | 1 mm | 67% | 1.1 m/s | 3.2 |
| 2008 | 25.2°C | 19.1°C | 13.0°C | 27.4°C | 9.2°C | 0 mm | 70% | 1.1 m/s | 3 |
| 2007 ❄️ | 22.2°C | 15.6°C | 9.1°C | 24.7°C | 5.7°C | 0 mm | 73% | 1.3 m/s | 3.5 |
| 2006 | 24.2°C | 17.6°C | 11.0°C | 26.7°C | 7.4°C | 3 mm | 69% | 1.3 m/s | 3.5 |
| 2005 | 23.0°C | 16.6°C | 10.2°C | 24.8°C | 6.4°C | 5 mm | 68% | 1.3 m/s | 3.9 |
| 2004 | 23.6°C | 17.7°C | 11.9°C | 25.0°C | 6.0°C | 0 mm | 73% | 1 m/s | 3.6 |
| 2003 | 23.9°C | 17.5°C | 11.1°C | 26.8°C | 7.4°C | 10 mm | 69% | 1.3 m/s | 3.7 |
| 2002 | 24.7°C | 17.6°C | 10.6°C | 27.2°C | 8.3°C | 1 mm | 58% | 1.2 m/s | 3.4 |
| 2001 | 24.0°C | 16.9°C | 9.9°C | 25.1°C | 8.2°C | 0 mm | 61% | 1.2 m/s | 3.6 |
| 2000 | 24.8°C | 17.2°C | 9.5°C | 26.2°C | 7.7°C | 0 mm | 52% | 1.3 m/s | 3.9 |
| 1999 | 24.4°C | 17.6°C | 10.9°C | 25.0°C | 7.4°C | 0 mm | 66% | 1.2 m/s | 4 |
| 1998 | 23.5°C | 16.6°C | 9.7°C | 24.8°C | 6.7°C | 0 mm | 69% | 1.4 m/s | 3.9 |
| 1997 | 23.6°C | 17.3°C | 11.0°C | 27.6°C | 6.5°C | 18 mm | 70% | 1.6 m/s | 3 |
| 1996 | 27.6°C | 18.7°C | 9.8°C | 29.9°C | 6.8°C | 0 mm | 32% | 1.8 m/s | 3.9 |
| 1995 | 26.5°C | 18.7°C | 10.9°C | 28.7°C | 7.8°C | 8 mm | 54% | 1.7 m/s | 3.7 |
| 1994 | 27.9°C | 19.4°C | 10.9°C | 31.2°C | 6.6°C | 0 mm | 33% | 1.7 m/s | 4.1 |
| 1993 | 27.9°C | 19.4°C | 11.0°C | 30.0°C | 8.2°C | 0 mm | 40% | 1.6 m/s | 4 |
| 1992 | 27.5°C | 19.5°C | 11.5°C | 29.2°C | 8.7°C | 1 mm | 34% | 1.4 m/s | 4 |
| 1991 | 25.8°C | 18.6°C | 11.4°C | 28.0°C | 6.5°C | 24 mm | 55% | 1.5 m/s | 3.8 |
| 1990 | 26.9°C | 19.0°C | 11.2°C | 29.3°C | 7.6°C | 0 mm | 50% | 1.6 m/s | 4.2 |
| 1989 | 26.8°C | 18.9°C | 11.0°C | 29.8°C | 6.5°C | 14 mm | 43% | 1.6 m/s | 4 |
| 1988 🔥 | 28.6°C | 20.9°C | 13.2°C | 30.7°C | 9.6°C | 2 mm | 41% | 1.7 m/s | 4.1 |
| 1987 | 27.2°C | 19.1°C | 10.9°C | 28.6°C | 8.6°C | 2 mm | 55% | 1.7 m/s | 4.1 |
| 1986 | 24.8°C | 18.3°C | 11.8°C | 27.4°C | 7.7°C | 32 mm | 60% | 1.3 m/s | 3.8 |
| 1985 | 26.9°C | 19.1°C | 11.3°C | 29.1°C | 7.7°C | 2 mm | 57% | 1.7 m/s | 4.1 |
| 1984 | 27.4°C | 18.7°C | 9.9°C | 30.5°C | 5.5°C | 0 mm | 42% | 1.8 m/s | 4.1 |
| 1983 | 26.1°C | 18.5°C | 10.9°C | 29.9°C | 6.0°C | 9 mm | 44% | 1.7 m/s | — |
| 1982 | 26.9°C | 18.8°C | 10.8°C | 29.0°C | 8.7°C | 0 mm | 43% | 1.7 m/s | — |
| 1981 🌧️ | 24.6°C | 17.6°C | 10.6°C | 27.5°C | 7.1°C | 39 mm | 62% | 1.7 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 25°C with lows near 10.9°C (mean 18°C), based on 45 years of NASA POWER data.
December averages 6 mm of rainfall in Dumka, one of the drier months. The wettest on record was 39 mm in 1981.
The hottest December reached 31.2°C in 1994. The coldest dipped to 3.8°C in 2012.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have fallen by about 1.2°C — but days and nights have moved in opposite directions. Overnight lows rose from 10.7°C to 11.2°C while daytime highs eased from 26.4°C to 23.4°C, narrowing the gap between day and night.
December is one of the cooler months of the year in Dumka and one of the drier months, so plan for around 25°C daytime highs and 10.9°C at night.
Not quite — December is the 2nd coolest month in Dumka, averaging 18°C.
For December in Dumka, pack light layers you can adjust through the day, with typical highs of 25°C and lows of 10.9°C.
Relative humidity in December averages 60% — moderately humid.
Average wind speed in December is 1.5 m/s. The windiest December on record averaged 2.2 m/s (2012).
The wettest December on record was 1981 with 39 mm. On average, December sees 6 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 Dumka 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.
