January is one of the cooler months of the year in Dumka, with average highs near 25.1°C and lows around 9.9°C (mean 17.5°C). It is one of the drier months, averaging 7 mm of rainfall and 51% relative humidity across the period.
January is one of the cooler months of the year in Dumka. Across 45 years of records, the warmest January in Dumka was 1994 — when the month averaged 19.9°C — while the coldest was 2018 at 14.7°C. Typical January days reach 25.1°C with nights near 9.9°C. The long-term trend is cooling, about 0.5°C per decade.
January is one of the drier months in Dumka, averaging 7 mm of rainfall. The wettest January on record was 2008 with 36 mm, while the driest were 2021, 2023 and 2025, among others at 0 mm.
Relative humidity in Dumka during January averages 51%. The most humid January was 2022 at 76%, and the least humid was 1997 at 30%.
January receives about 3.7 kWh/m²/day of solar energy in Dumka. The sunniest Januarys were 1988 and 1989 at 4.4 kWh/m²/day, and the cloudiest was 2024 at 2.9.
Average wind speed in Dumka during January is 1.7 m/s. The windiest January was 2013 at 2.5 m/s, while the calmest were 1992, 2009 and 2021 at 1.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 18.4°C | 18.2°C | 17.0°C | 16.9°C | 16.8°C | -1.6°C |
| Avg High | 26.3°C | 26.2°C | 24.4°C | 24.4°C | 23.6°C | -2.7°C |
| Avg Low | 10.4°C | 10.2°C | 9.5°C | 9.5°C | 10.0°C | -0.4°C |
| Avg Rain | 6 mm | 7 mm | 8 mm | 8 mm | 6 mm | +0 mm |
January temperatures in Dumka have fallen by about 1.6°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 1.9°C (2013) to a record high of 34.5°C (1990).
Rainfall in January is one of the drier months, averaging 7 mm, with a wettest year of 36 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.7°C per decade while lows fell 0.2°C per decade, narrowing the gap between day and night.
One of the best times to visit Dumka
January is one of the best times to visit Dumka. Expect days averaging 25.1°C and nights around 9.9°C (mean 17.5°C) — cooler than Dumka's yearly average — with low rainfall (7 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 | 24.3°C | 17.4°C | 10.4°C | 29.0°C | 7.2°C | 0 mm | 64% | 1.5 m/s | 3.3 |
| 2024 | 22.2°C | 15.5°C | 8.9°C | 25.5°C | 5.8°C | 11 mm | 67% | 1.4 m/s | 2.9 |
| 2023 | 25.9°C | 18.2°C | 10.6°C | 30.2°C | 6.7°C | 0 mm | 53% | 1.7 m/s | 3.1 |
| 2022 | 22.2°C | 16.2°C | 10.2°C | 25.4°C | 6.6°C | 13 mm | 76% | 1.7 m/s | 3.1 |
| 2021 | 24.6°C | 17.6°C | 10.5°C | 29.2°C | 5.9°C | 0 mm | 59% | 1.3 m/s | 3 |
| 2020 | 22.1°C | 15.8°C | 9.5°C | 26.3°C | 5.2°C | 14 mm | 71% | 1.7 m/s | 3.1 |
| 2019 | 25.8°C | 18.1°C | 10.3°C | 29.2°C | 6.6°C | 3 mm | 47% | 1.6 m/s | 3.7 |
| 2018 ❄️ | 22.3°C | 14.7°C | 7.1°C | 25.9°C | 4.8°C | 0 mm | 59% | 1.6 m/s | 3.5 |
| 2017 | 26.0°C | 18.5°C | 10.9°C | 30.9°C | 5.5°C | 3 mm | 55% | 1.8 m/s | 3.7 |
| 2016 | 25.8°C | 18.5°C | 11.3°C | 29.2°C | 6.3°C | 25 mm | 46% | 1.4 m/s | 3 |
| 2015 | 25.3°C | 17.7°C | 10.2°C | 29.0°C | 6.1°C | 21 mm | 56% | 2 m/s | 3.4 |
| 2014 | 23.7°C | 16.6°C | 9.6°C | 26.4°C | 5.8°C | 1 mm | 64% | 1.9 m/s | 3.4 |
| 2013 | 23.9°C | 15.7°C | 7.6°C | 27.9°C | 1.9°C | 0 mm | 48% | 2.5 m/s | 3.6 |
| 2012 | 23.4°C | 16.9°C | 10.4°C | 26.2°C | 5.3°C | 21 mm | 64% | 1.6 m/s | 3.1 |
| 2011 | 24.1°C | 16.4°C | 8.7°C | 28.0°C | 5.6°C | 2 mm | 52% | 1.6 m/s | 3.4 |
| 2010 | 24.0°C | 16.2°C | 8.4°C | 26.5°C | 6.2°C | 0 mm | 55% | 1.7 m/s | 3.7 |
| 2009 | 25.9°C | 18.6°C | 11.3°C | 30.6°C | 7.3°C | 3 mm | 57% | 1.3 m/s | 3.3 |
| 2008 🌧️ | 23.1°C | 16.3°C | 9.4°C | 27.4°C | 6.1°C | 36 mm | 65% | 1.5 m/s | 3.2 |
| 2007 | 24.3°C | 16.7°C | 9.1°C | 28.7°C | 6.2°C | 0 mm | 50% | 1.4 m/s | 3.6 |
| 2006 | 24.4°C | 16.7°C | 8.9°C | 27.8°C | 5.6°C | 0 mm | 52% | 1.5 m/s | 3.9 |
| 2005 | 23.5°C | 16.9°C | 10.2°C | 26.4°C | 7.6°C | 15 mm | 64% | 1.4 m/s | 3.1 |
| 2004 | 24.1°C | 16.9°C | 9.6°C | 27.5°C | 6.3°C | 10 mm | 58% | 1.5 m/s | 3.5 |
| 2003 | 23.5°C | 15.7°C | 7.9°C | 28.1°C | 4.8°C | 2 mm | 51% | 1.5 m/s | 3.7 |
| 2002 | 24.9°C | 17.8°C | 10.7°C | 28.9°C | 6.8°C | 11 mm | 59% | 1.5 m/s | 3.6 |
| 2001 | 25.0°C | 16.6°C | 8.3°C | 30.2°C | 5.2°C | 1 mm | 42% | 1.7 m/s | 3.7 |
| 2000 | 25.5°C | 17.5°C | 9.4°C | 28.6°C | 5.0°C | 6 mm | 48% | 1.5 m/s | 4 |
| 1999 | 24.0°C | 16.4°C | 8.8°C | 28.5°C | 6.1°C | 0 mm | 56% | 1.6 m/s | 4.3 |
| 1998 | 24.3°C | 16.8°C | 9.4°C | 27.5°C | 5.6°C | 21 mm | 57% | 1.7 m/s | 3.5 |
| 1997 | 26.6°C | 18.4°C | 10.1°C | 28.9°C | 7.1°C | 5 mm | 30% | 1.8 m/s | 3.8 |
| 1996 | 26.4°C | 18.6°C | 10.8°C | 28.4°C | 6.9°C | 8 mm | 48% | 2 m/s | 4 |
| 1995 | 26.0°C | 18.0°C | 9.9°C | 28.8°C | 6.7°C | 7 mm | 34% | 2 m/s | 3.8 |
| 1994 🔥 | 28.1°C | 19.9°C | 11.7°C | 31.8°C | 7.3°C | 13 mm | 39% | 1.9 m/s | 3.9 |
| 1993 | 27.0°C | 18.5°C | 10.1°C | 29.8°C | 6.5°C | 11 mm | 35% | 2 m/s | 4 |
| 1992 | 25.5°C | 17.9°C | 10.3°C | 30.8°C | 5.4°C | 2 mm | 43% | 1.3 m/s | 4 |
| 1991 | 25.9°C | 17.9°C | 9.9°C | 31.1°C | 6.1°C | 4 mm | 41% | 1.7 m/s | 4.1 |
| 1990 | 28.5°C | 19.7°C | 10.8°C | 34.5°C | 6.3°C | 0 mm | 31% | 1.8 m/s | 4.3 |
| 1989 | 26.1°C | 17.4°C | 8.6°C | 29.5°C | 5.1°C | 1 mm | 32% | 2 m/s | 4.4 |
| 1988 | 27.7°C | 19.1°C | 10.5°C | 29.8°C | 7.7°C | 0 mm | 40% | 1.9 m/s | 4.4 |
| 1987 | 25.4°C | 17.5°C | 9.5°C | 28.5°C | 5.0°C | 3 mm | 46% | 1.5 m/s | 4.2 |
| 1986 | 26.5°C | 18.3°C | 10.0°C | 30.7°C | 5.4°C | 2 mm | 46% | 2 m/s | 4.3 |
| 1985 | 27.3°C | 19.5°C | 11.7°C | 31.2°C | 8.6°C | 3 mm | 41% | 1.7 m/s | 4 |
| 1984 | 25.8°C | 18.2°C | 10.7°C | 28.9°C | 7.0°C | 17 mm | 43% | 1.7 m/s | 3.9 |
| 1983 | 26.6°C | 18.6°C | 10.5°C | 31.2°C | 7.3°C | 1 mm | 32% | 1.6 m/s | — |
| 1982 | 26.6°C | 18.9°C | 11.2°C | 29.7°C | 7.0°C | 7 mm | 53% | 1.6 m/s | — |
| 1981 | 24.8°C | 17.8°C | 10.7°C | 29.2°C | 7.2°C | 22 mm | 58% | 1.6 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 25.1°C with lows near 9.9°C (mean 17.5°C), based on 45 years of NASA POWER data.
January averages 7 mm of rainfall in Dumka, one of the drier months. The wettest on record was 36 mm in 2008.
The hottest January reached 34.5°C in 1990. The coldest dipped to 1.9°C in 2013.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have fallen by about 1.6°C. Daytime highs moved from 26.2°C to 23.8°C and overnight lows from 11°C to 10.1°C over the same span.
January is one of the cooler months of the year in Dumka and one of the drier months, so plan for around 25.1°C daytime highs and 9.9°C at night.
Yes — January is the coldest month of the year in Dumka, averaging 17.5°C.
For January in Dumka, pack light layers you can adjust through the day, with typical highs of 25.1°C and lows of 9.9°C.
Relative humidity in January averages 51% — relatively dry.
Average wind speed in January is 1.7 m/s. The windiest January on record averaged 2.5 m/s (2013).
The wettest January on record was 2008 with 36 mm. On average, January sees 7 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 January, 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 January specifically, along with year-by-year records and how the month has changed over the decades.
