December is one of the cooler months of the year in Dima Hasao, with average highs near 23.9°C and lows around 10.6°C (mean 17.3°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 1987 — when the month averaged 18.9°C — while the coldest was 1991 at 15.6°C. Typical December days reach 23.9°C with nights near 10.6°C. The long-term December temperature trend is broadly flat.
December is one of the drier months in Dima Hasao, averaging 16 mm of rainfall. The wettest December on record was 2017 with 72 mm, while the driest were 2020, 2024 and 2025, among others at 0 mm.
Relative humidity in Dima Hasao during December averages 72%. The most humid December was 2017 at 83%, and the least humid was 1994 at 52%.
December receives about 4 kWh/m²/day of solar energy in Dima Hasao. The sunniest December was 1993 at 4.6 kWh/m²/day, and the cloudiest were 2004, 2008 and 2023, among others at 3.5.
Average wind speed in Dima Hasao during December is 0.3 m/s. The windiest Decembers were 1996, 2001 and 2012, among others at 0.4 m/s, while the calmest were 2023, 2024 and 2025, among others at 0.3 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 17.4°C | 17.3°C | 17.1°C | 17.3°C | 17.4°C | 0°C |
| Avg High | 24.5°C | 24.5°C | 23.9°C | 23.2°C | 23.3°C | -1.2°C |
| Avg Low | 10.2°C | 10.1°C | 10.4°C | 11.3°C | 11.3°C | +1.1°C |
| Avg Rain | 15 mm | 12 mm | 16 mm | 21 mm | 13 mm | -2 mm |
December temperatures in Dima Hasao have risen by about 0.6°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 0.4°C per decade, narrowing the gap between day and night.
One of the best times to visit Dima Hasao
December is one of the best times to visit Dima Hasao. Expect days averaging 23.9°C and nights around 10.6°C (mean 17.3°C) — cooler than Dima Hasao's yearly average — with low rainfall (16 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 | 22.7°C | 16.5°C | 10.3°C | 24.5°C | 7.3°C | 0 mm | 77% | 0.3 m/s | — |
| 2024 | 22.4°C | 16.5°C | 10.5°C | 25.7°C | 7.0°C | 0 mm | 78% | 0.3 m/s | 4 |
| 2023 | 24.5°C | 18.7°C | 12.9°C | 27.6°C | 8.8°C | 36 mm | 75% | 0.3 m/s | 3.5 |
| 2022 | 23.7°C | 17.7°C | 11.6°C | 27.5°C | 7.7°C | 11 mm | 77% | 0.3 m/s | 3.8 |
| 2021 | 24.2°C | 18.2°C | 12.2°C | 27.3°C | 8.9°C | 31 mm | 76% | 0.3 m/s | 3.7 |
| 2020 | 22.6°C | 16.5°C | 10.4°C | 25.3°C | 7.0°C | 0 mm | 79% | 0.3 m/s | 4.1 |
| 2019 | 21.9°C | 16.1°C | 10.3°C | 24.1°C | 7.5°C | 3 mm | 80% | 0.3 m/s | 3.8 |
| 2018 | 23.0°C | 17.1°C | 11.2°C | 26.6°C | 7.0°C | 48 mm | 78% | 0.3 m/s | 3.9 |
| 2017 🌧️ | 23.6°C | 18.1°C | 12.6°C | 26.3°C | 10.7°C | 72 mm | 83% | 0.3 m/s | 3.8 |
| 2016 | 24.0°C | 18.3°C | 12.6°C | 25.6°C | 9.9°C | 7 mm | 81% | 0.3 m/s | 4 |
| 2015 | 21.8°C | 16.5°C | 11.1°C | 25.0°C | 6.9°C | 12 mm | 81% | 0.3 m/s | 3.6 |
| 2014 | 25.0°C | 18.6°C | 12.2°C | 27.1°C | 9.3°C | 1 mm | 75% | 0.3 m/s | 4 |
| 2013 | 22.6°C | 16.9°C | 11.2°C | 26.2°C | 7.0°C | 2 mm | 81% | 0.3 m/s | 3.8 |
| 2012 | 23.2°C | 17.2°C | 11.2°C | 25.7°C | 7.5°C | 21 mm | 78% | 0.4 m/s | 4 |
| 2011 | 24.2°C | 17.3°C | 10.5°C | 26.5°C | 6.9°C | 1 mm | 74% | 0.3 m/s | 3.8 |
| 2010 | 22.3°C | 16.4°C | 10.6°C | 25.7°C | 7.2°C | 39 mm | 80% | 0.3 m/s | 3.9 |
| 2009 | 22.9°C | 16.4°C | 10.0°C | 25.2°C | 6.7°C | 21 mm | 76% | 0.3 m/s | 3.8 |
| 2008 | 24.5°C | 18.2°C | 11.9°C | 26.7°C | 8.9°C | 2 mm | 76% | 0.3 m/s | 3.5 |
| 2007 | 23.0°C | 16.5°C | 10.0°C | 24.2°C | 7.6°C | 3 mm | 74% | 0.3 m/s | 3.8 |
| 2006 | 25.4°C | 18.0°C | 10.5°C | 28.1°C | 7.9°C | 12 mm | 67% | 0.3 m/s | 3.7 |
| 2005 | 24.0°C | 17.4°C | 10.8°C | 26.6°C | 8.2°C | 10 mm | 73% | 0.3 m/s | 4 |
| 2004 | 23.7°C | 17.2°C | 10.7°C | 26.4°C | 5.9°C | 5 mm | 74% | 0.3 m/s | 3.5 |
| 2003 | 23.0°C | 16.9°C | 10.7°C | 26.5°C | 7.1°C | 36 mm | 76% | 0.3 m/s | 3.5 |
| 2002 | 23.2°C | 16.8°C | 10.5°C | 25.9°C | 5.6°C | 62 mm | 75% | 0.3 m/s | 3.8 |
| 2001 | 25.0°C | 17.2°C | 9.4°C | 28.5°C | 7.4°C | 3 mm | 63% | 0.4 m/s | 4.1 |
| 2000 | 24.1°C | 16.6°C | 9.2°C | 28.3°C | 8.0°C | 3 mm | 67% | 0.3 m/s | 4.3 |
| 1999 | 24.5°C | 17.6°C | 10.7°C | 26.6°C | 6.9°C | 7 mm | 70% | 0.3 m/s | 4.1 |
| 1998 | 25.2°C | 17.9°C | 10.5°C | 26.2°C | 8.9°C | 0 mm | 67% | 0.3 m/s | 4.3 |
| 1997 | 23.0°C | 16.7°C | 10.3°C | 25.4°C | 5.5°C | 40 mm | 73% | 0.3 m/s | 3.5 |
| 1996 | 26.2°C | 18.3°C | 10.4°C | 28.5°C | 8.1°C | 0 mm | 56% | 0.4 m/s | 4.4 |
| 1995 | 22.9°C | 16.3°C | 9.7°C | 24.1°C | 8.1°C | 2 mm | 74% | 0.4 m/s | 4.4 |
| 1994 | 25.8°C | 17.8°C | 9.8°C | 28.3°C | 7.6°C | 0 mm | 52% | 0.3 m/s | 4.5 |
| 1993 | 26.3°C | 18.4°C | 10.6°C | 28.8°C | 8.9°C | 2 mm | 60% | 0.3 m/s | 4.6 |
| 1992 | 24.0°C | 16.4°C | 8.8°C | 26.0°C | 7.0°C | 27 mm | 59% | 0.3 m/s | 4.2 |
| 1991 ❄️ | 21.8°C | 15.6°C | 9.4°C | 24.7°C | 5.0°C | 43 mm | 74% | 0.3 m/s | 3.9 |
| 1990 | 25.0°C | 17.7°C | 10.5°C | 27.4°C | 8.3°C | 0 mm | 65% | 0.3 m/s | 4.3 |
| 1989 | 24.6°C | 16.7°C | 8.8°C | 27.0°C | 6.2°C | 3 mm | 58% | 0.3 m/s | 4.4 |
| 1988 | 24.7°C | 18.4°C | 12.1°C | 27.6°C | 9.7°C | 15 mm | 77% | 0.3 m/s | 4.3 |
| 1987 🔥 | 26.4°C | 18.9°C | 11.3°C | 28.7°C | 8.0°C | 4 mm | 66% | 0.3 m/s | 4.2 |
| 1986 | 25.4°C | 18.0°C | 10.6°C | 28.9°C | 7.7°C | 3 mm | 66% | 0.3 m/s | 4.1 |
| 1985 | 25.4°C | 17.8°C | 10.2°C | 27.6°C | 7.5°C | 18 mm | 60% | 0.3 m/s | 4.2 |
| 1984 | 24.5°C | 16.9°C | 9.3°C | 28.5°C | 5.3°C | 10 mm | 60% | 0.4 m/s | 4 |
| 1983 | 22.6°C | 15.8°C | 9.0°C | 25.8°C | 4.5°C | 30 mm | 69% | 0.3 m/s | — |
| 1982 | 23.6°C | 16.5°C | 9.3°C | 25.8°C | 7.4°C | 3 mm | 65% | 0.3 m/s | — |
| 1981 | 23.6°C | 17.3°C | 10.9°C | 28.1°C | 7.2°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 23.9°C with lows near 10.6°C (mean 17.3°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 0.6°C — but days and nights have moved in opposite directions. Overnight lows rose from 9.7°C to 11.5°C while daytime highs eased from 23.9°C to 23.5°C, narrowing the gap between day and night.
December is one of the cooler months of the year in Dima Hasao and one of the drier months, so plan for around 23.9°C daytime highs and 10.6°C at night.
Not quite — December is the 2nd coolest month in Dima Hasao, averaging 17.3°C.
For December in Dima Hasao, pack light layers you can adjust through the day, with typical highs of 23.9°C and lows of 10.6°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.
