December is one of the cooler months of the year in Dima Hasao, with average highs near 26.6°C and lows around 7.5°C (mean 17.1°C). It is one of the drier months, averaging 16 mm of rainfall and 72% relative humidity across the period.
December is one of the cooler months of the year in Dima Hasao. Across 45 years of records, the warmest December in Dima Hasao was 1993 — when the month averaged 18.8°C — while the coldest was 1991 at 14.9°C. Typical December days reach 26.6°C with nights near 7.5°C. The long-term December temperature trend is broadly flat.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.3°C | 17.0°C | 17.0°C | 16.9°C | 17.1°C | -0.2°C |
| Avg High | 27.6°C | 26.6°C | 26.6°C | 25.9°C | 26.3°C | -1.3°C |
| Avg Low | 7.1°C | 7.4°C | 7.3°C | 8.0°C | 7.8°C | +0.7°C |
| Avg Rain | 15 mm | 12 mm | 16 mm | 21 mm | 13 mm | -2 mm |
December temperatures in Dima Hasao have risen by about 0.5°C between 1981–1985 and 2021–2025.
December has ranged from a record low of 4.5°C (1983) to a record high of 28.9°C (1986).
Rainfall in December is one of the drier months, averaging 16 mm, with a wettest year of 72 mm.
Daytime highs and overnight lows have shifted differently — highs fell about 0.4°C per decade while lows rose 0.3°C per decade, narrowing the gap between day and night.
A good time to visit Dima Hasao
December is a good time to visit Dima Hasao, with days averaging 26.6°C and nights around 7.5°C (mean 17.1°C, cooler than Dima Hasao's yearly average) and low rainfall. March and November are marginally more temperate, but December still suits most travellers.
| Year | High | Low | Avg | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|
| 2025 | 24.5°C | 7.3°C | 15.9°C | 0 mm | 77% | 0.3 m/s | — |
| 2024 | 25.7°C | 7.0°C | 16.4°C | 0 mm | 78% | 0.3 m/s | 4 |
| 2023 | 27.6°C | 8.8°C | 18.2°C | 36 mm | 75% | 0.3 m/s | 3.5 |
| 2022 | 27.5°C | 7.7°C | 17.6°C | 11 mm | 77% | 0.3 m/s | 3.8 |
| 2021 | 27.3°C | 8.9°C | 18.1°C | 31 mm | 76% | 0.3 m/s | 3.7 |
| 2020 | 25.3°C | 7.0°C | 16.2°C | 0 mm | 79% | 0.3 m/s | 4.1 |
| 2019 | 24.1°C | 7.5°C | 15.8°C | 3 mm | 80% | 0.3 m/s | 3.8 |
| 2018 | 26.6°C | 7.0°C | 16.8°C | 48 mm | 78% | 0.3 m/s | 3.9 |
| 2017 🌧️ | 26.3°C | 10.7°C | 18.5°C | 72 mm | 83% | 0.3 m/s | 3.8 |
| 2016 | 25.6°C | 9.9°C | 17.7°C | 7 mm | 81% | 0.3 m/s | 4 |
| 2015 | 25.0°C | 6.9°C | 15.9°C | 12 mm | 81% | 0.3 m/s | 3.6 |
| 2014 | 27.1°C | 9.3°C | 18.2°C | 1 mm | 75% | 0.3 m/s | 4 |
| 2013 | 26.2°C | 7.0°C | 16.6°C | 2 mm | 81% | 0.3 m/s | 3.8 |
| 2012 | 25.7°C | 7.5°C | 16.6°C | 21 mm | 78% | 0.4 m/s | 4 |
| 2011 | 26.5°C | 6.9°C | 16.7°C | 1 mm | 74% | 0.3 m/s | 3.8 |
| 2010 | 25.7°C | 7.2°C | 16.5°C | 39 mm | 80% | 0.3 m/s | 3.9 |
| 2009 | 25.2°C | 6.7°C | 16.0°C | 21 mm | 76% | 0.3 m/s | 3.8 |
| 2008 | 26.7°C | 8.9°C | 17.8°C | 2 mm | 76% | 0.3 m/s | 3.5 |
| 2007 | 24.2°C | 7.6°C | 15.9°C | 3 mm | 74% | 0.3 m/s | 3.8 |
| 2006 | 28.1°C | 7.9°C | 18.0°C | 12 mm | 67% | 0.3 m/s | 3.7 |
| 2005 | 26.6°C | 8.2°C | 17.4°C | 10 mm | 73% | 0.3 m/s | 4 |
| 2004 | 26.4°C | 5.9°C | 16.2°C | 5 mm | 74% | 0.3 m/s | 3.5 |
| 2003 | 26.5°C | 7.1°C | 16.8°C | 36 mm | 76% | 0.3 m/s | 3.5 |
| 2002 | 25.9°C | 5.6°C | 15.7°C | 62 mm | 75% | 0.3 m/s | 3.8 |
| 2001 | 28.5°C | 7.4°C | 17.9°C | 3 mm | 63% | 0.4 m/s | 4.1 |
| 2000 | 28.3°C | 8.0°C | 18.1°C | 3 mm | 67% | 0.3 m/s | 4.3 |
| 1999 | 26.6°C | 6.9°C | 16.7°C | 7 mm | 70% | 0.3 m/s | 4.1 |
| 1998 | 26.2°C | 8.9°C | 17.6°C | 0 mm | 67% | 0.3 m/s | 4.3 |
| 1997 | 25.4°C | 5.5°C | 15.4°C | 40 mm | 73% | 0.3 m/s | 3.5 |
| 1996 | 28.5°C | 8.1°C | 18.3°C | 0 mm | 56% | 0.4 m/s | 4.4 |
| 1995 | 24.1°C | 8.1°C | 16.1°C | 2 mm | 74% | 0.4 m/s | 4.4 |
| 1994 | 28.3°C | 7.6°C | 17.9°C | 0 mm | 52% | 0.3 m/s | 4.5 |
| 1993 🔥 | 28.8°C | 8.9°C | 18.8°C | 2 mm | 60% | 0.3 m/s | 4.6 |
| 1992 | 26.0°C | 7.0°C | 16.5°C | 27 mm | 59% | 0.3 m/s | 4.2 |
| 1991 ❄️ | 24.7°C | 5.0°C | 14.9°C | 43 mm | 74% | 0.3 m/s | 3.9 |
| 1990 | 27.4°C | 8.3°C | 17.8°C | 0 mm | 65% | 0.3 m/s | 4.3 |
| 1989 | 27.0°C | 6.2°C | 16.6°C | 3 mm | 58% | 0.3 m/s | 4.4 |
| 1988 | 27.6°C | 9.7°C | 18.7°C | 15 mm | 77% | 0.3 m/s | 4.3 |
| 1987 | 28.7°C | 8.0°C | 18.3°C | 4 mm | 66% | 0.3 m/s | 4.2 |
| 1986 | 28.9°C | 7.7°C | 18.3°C | 3 mm | 66% | 0.3 m/s | 4.1 |
| 1985 | 27.6°C | 7.5°C | 17.5°C | 18 mm | 60% | 0.3 m/s | 4.2 |
| 1984 | 28.5°C | 5.3°C | 16.9°C | 10 mm | 60% | 0.4 m/s | 4 |
| 1983 | 25.8°C | 4.5°C | 15.1°C | 30 mm | 69% | 0.3 m/s | — |
| 1982 | 25.8°C | 7.4°C | 16.6°C | 3 mm | 65% | 0.3 m/s | — |
| 1981 | 28.1°C | 7.2°C | 17.6°C | 51 mm | 74% | 0.3 m/s | — |
Actual recorded December data for each year, 1981–2025 — sourced from NASA POWER.
The average high in December is around 26.6°C with lows near 7.5°C (mean 17.1°C), based on 45 years of NASA POWER data.
December averages 16 mm of rainfall in Dima Hasao, one of the drier months. The wettest on record was 72 mm in 2017.
The hottest December reached 28.9°C in 1986. The coldest dipped to 4.5°C in 1983.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average December temperatures have risen by about 0.5°C. Daytime highs moved from 27.2°C to 26.5°C and overnight lows from 6.4°C to 7.9°C over the same span.
December is one of the cooler months of the year in Dima Hasao and one of the drier months, so plan for around 26.6°C daytime highs and 7.5°C at night.
Not quite — December is the 2nd coolest month in Dima Hasao, averaging 17.1°C.
For December in Dima Hasao, pack warm layers and a jacket for chilly mornings, with typical highs of 26.6°C and lows of 7.5°C.
Relative humidity in December averages 72% — moderately humid.
Average wind speed in December is 0.3 m/s. The windiest December on record averaged 0.4 m/s (1984).
The wettest December on record was 2017 with 72 mm. On average, December sees 16 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 Dima Hasao 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.
