January is one of the warmer months of the year in Scottsdale, with average highs near 20.5°C and lows around 12.9°C (mean 16.7°C). It is one of the drier months, averaging 58 mm of rainfall and 73% relative humidity across the period.
January is one of the warmer months of the year in Scottsdale. Across 45 years of records, the warmest January in Scottsdale was 2022 — when the month averaged 18.4°C — while the coldest were 1987 and 1994 at 14.2°C. Typical January days reach 20.5°C with nights near 12.9°C. The long-term trend is warming, about 0.4°C per decade.
January is one of the drier months in Scottsdale, averaging 58 mm of rainfall. The wettest January on record was 1996 with 137 mm, while the driest was 2019 at 6 mm.
Relative humidity in Scottsdale during January averages 73%. The most humid January was 2011 at 79%, and the least humid was 1990 at 69%.
January receives about 6.8 kWh/m²/day of solar energy in Scottsdale. The sunniest January was 2019 at 7.8 kWh/m²/day, and the cloudiest was 2002 at 5.9.
Average wind speed in Scottsdale during January is 3.8 m/s. The windiest January was 1987 at 4.8 m/s, while the calmest were 1997 and 1999 at 3.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 16.2°C | 16.3°C | 16.6°C | 17.2°C | 17.4°C | +1.2°C |
| Avg High | 20.1°C | 20.0°C | 20.3°C | 21.0°C | 21.0°C | +0.9°C |
| Avg Low | 12.3°C | 12.5°C | 12.8°C | 13.4°C | 13.7°C | +1.4°C |
| Avg Rain | 50 mm | 69 mm | 51 mm | 60 mm | 59 mm | +8 mm |
January temperatures in Scottsdale have risen by about 1.3°C between 1981–1985 and 2021–2025.
January has ranged from a record low of 6.8°C (1987) to a record high of 30.7°C (2009).
Rainfall in January is one of the drier months, averaging 58 mm, with a wettest year of 137 mm.
One of the best times to visit Scottsdale
January is one of the best times to visit Scottsdale. Expect days averaging 20.5°C and nights around 12.9°C (mean 16.7°C) — warmer than Scottsdale's yearly average — with moderate rainfall (58 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 | 21.7°C | 17.8°C | 13.9°C | 25.6°C | 9.6°C | 33 mm | 72% | 3.3 m/s | 7 |
| 2024 | 21.2°C | 17.7°C | 14.1°C | 26.0°C | 11.6°C | 58 mm | 74% | 3.9 m/s | 6.7 |
| 2023 | 21.0°C | 17.4°C | 13.9°C | 25.1°C | 10.8°C | 31 mm | 76% | 3.3 m/s | 6.6 |
| 2022 🔥 | 22.0°C | 18.4°C | 14.8°C | 24.7°C | 11.7°C | 89 mm | 77% | 3.6 m/s | 6.1 |
| 2021 | 19.7°C | 16.1°C | 12.6°C | 25.2°C | 8.2°C | 89 mm | 75% | 3.9 m/s | 6.7 |
| 2020 | 20.6°C | 16.9°C | 13.1°C | 27.1°C | 9.4°C | 51 mm | 74% | 3.8 m/s | 6.4 |
| 2019 | 22.3°C | 18.3°C | 14.3°C | 26.2°C | 11.2°C | 6 mm | 71% | 3.8 m/s | 7.8 |
| 2018 | 22.4°C | 18.3°C | 14.1°C | 28.0°C | 9.8°C | 62 mm | 71% | 3.4 m/s | 7.3 |
| 2017 | 20.0°C | 16.4°C | 12.8°C | 23.6°C | 9.6°C | 67 mm | 76% | 4.1 m/s | 7.5 |
| 2016 | 22.0°C | 18.3°C | 14.5°C | 27.4°C | 9.5°C | 120 mm | 70% | 3.6 m/s | 6.3 |
| 2015 | 20.5°C | 16.9°C | 13.3°C | 25.5°C | 8.5°C | 81 mm | 73% | 4 m/s | 6.4 |
| 2014 | 20.8°C | 16.6°C | 12.4°C | 27.8°C | 8.9°C | 27 mm | 73% | 3.6 m/s | 7.2 |
| 2013 | 20.6°C | 16.5°C | 12.5°C | 25.8°C | 9.2°C | 34 mm | 70% | 3.8 m/s | 7 |
| 2012 | 21.3°C | 17.4°C | 13.4°C | 25.5°C | 8.4°C | 43 mm | 72% | 3.5 m/s | 6.9 |
| 2011 | 19.6°C | 16.6°C | 13.6°C | 24.3°C | 9.2°C | 136 mm | 79% | 4.1 m/s | 6.4 |
| 2010 | 20.9°C | 16.9°C | 13.0°C | 25.5°C | 9.6°C | 22 mm | 70% | 3.7 m/s | 7.4 |
| 2009 | 20.2°C | 16.3°C | 12.3°C | 30.7°C | 7.8°C | 15 mm | 71% | 3.7 m/s | 7.5 |
| 2008 | 21.5°C | 17.5°C | 13.5°C | 25.4°C | 9.4°C | 25 mm | 71% | 3.5 m/s | 7.4 |
| 2007 | 20.5°C | 16.9°C | 13.2°C | 25.4°C | 8.6°C | 58 mm | 73% | 4.1 m/s | 6.5 |
| 2006 | 20.2°C | 16.4°C | 12.6°C | 26.2°C | 7.6°C | 35 mm | 76% | 3.3 m/s | 6.9 |
| 2005 | 20.4°C | 16.7°C | 12.9°C | 26.5°C | 9.2°C | 24 mm | 72% | 4.1 m/s | 6.9 |
| 2004 | 18.5°C | 15.1°C | 11.7°C | 23.1°C | 9.1°C | 130 mm | 73% | 4.5 m/s | 6.9 |
| 2003 | 21.6°C | 17.5°C | 13.4°C | 26.9°C | 9.6°C | 40 mm | 71% | 3.7 m/s | 7 |
| 2002 | 19.2°C | 15.8°C | 12.4°C | 23.1°C | 8.9°C | 56 mm | 77% | 3.7 m/s | 5.9 |
| 2001 | 21.5°C | 17.6°C | 13.7°C | 24.3°C | 9.5°C | 37 mm | 72% | 3.3 m/s | 6.5 |
| 2000 | 19.6°C | 15.9°C | 12.2°C | 24.7°C | 8.0°C | 91 mm | 73% | 3.7 m/s | 6.5 |
| 1999 | 21.2°C | 17.4°C | 13.6°C | 25.3°C | 11.8°C | 39 mm | 75% | 3.1 m/s | 6.7 |
| 1998 | 21.3°C | 17.5°C | 13.6°C | 26.2°C | 10.3°C | 68 mm | 72% | 3.5 m/s | 6.7 |
| 1997 | 21.2°C | 17.1°C | 13.0°C | 26.5°C | 10.5°C | 53 mm | 73% | 3.1 m/s | 6.6 |
| 1996 🌧️ | 19.4°C | 15.9°C | 12.3°C | 22.8°C | 8.3°C | 137 mm | 77% | 3.7 m/s | 6.4 |
| 1995 | 21.0°C | 17.0°C | 13.1°C | 25.1°C | 7.7°C | 125 mm | 74% | 3.4 m/s | 6.3 |
| 1994 | 17.3°C | 14.2°C | 11.0°C | 25.0°C | 8.4°C | 47 mm | 76% | 4.7 m/s | 6.6 |
| 1993 | 19.8°C | 16.2°C | 12.5°C | 22.8°C | 10.0°C | 53 mm | 76% | 3.6 m/s | 6.8 |
| 1992 | 18.2°C | 14.6°C | 11.0°C | 22.1°C | 8.5°C | 54 mm | 73% | 4.1 m/s | 6.7 |
| 1991 | 19.9°C | 16.2°C | 12.5°C | 26.3°C | 9.3°C | 94 mm | 75% | 4.1 m/s | 6.6 |
| 1990 | 20.5°C | 16.4°C | 12.4°C | 24.7°C | 7.2°C | 22 mm | 69% | 4 m/s | 7.1 |
| 1989 | 20.5°C | 16.6°C | 12.8°C | 25.7°C | 9.1°C | 51 mm | 74% | 3.2 m/s | 7 |
| 1988 | 22.0°C | 18.1°C | 14.1°C | 27.0°C | 11.1°C | 52 mm | 72% | 3.5 m/s | 6.9 |
| 1987 ❄️ | 17.3°C | 14.2°C | 11.0°C | 21.2°C | 6.8°C | 89 mm | 78% | 4.8 m/s | 6.4 |
| 1986 | 19.5°C | 15.7°C | 11.8°C | 22.4°C | 8.9°C | 51 mm | 72% | 3.4 m/s | 6.5 |
| 1985 | 19.3°C | 15.4°C | 11.4°C | 23.3°C | 8.6°C | 45 mm | 71% | 3.8 m/s | 6.7 |
| 1984 | 19.6°C | 15.7°C | 11.8°C | 21.5°C | 8.5°C | 50 mm | 70% | 4.3 m/s | 6.7 |
| 1983 | 18.8°C | 14.7°C | 10.6°C | 24.3°C | 7.2°C | 40 mm | 70% | 4.3 m/s | — |
| 1982 | 21.3°C | 17.2°C | 13.1°C | 26.9°C | 8.5°C | 43 mm | 70% | 4 m/s | — |
| 1981 | 22.5°C | 18.2°C | 13.8°C | 26.7°C | 11.2°C | 33 mm | 71% | 3.4 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 20.5°C with lows near 12.9°C (mean 16.7°C), based on 45 years of NASA POWER data.
January averages 58 mm of rainfall in Scottsdale, one of the drier months. The wettest on record was 137 mm in 1996.
The hottest January reached 30.7°C in 2009. The coldest dipped to 6.8°C in 1987.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 1.3°C. Daytime highs moved from 20.3°C to 21.1°C and overnight lows from 12.1°C to 13.9°C over the same span.
January is one of the warmer months of the year in Scottsdale and one of the drier months, so plan for around 20.5°C daytime highs and 12.9°C at night.
Not quite — January is the 11th coolest month in Scottsdale, averaging 16.7°C.
For January in Scottsdale, pack light layers you can adjust through the day, with typical highs of 20.5°C and lows of 12.9°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 73% — moderately humid.
Average wind speed in January is 3.8 m/s. The windiest January on record averaged 4.8 m/s (1987).
The wettest January on record was 1996 with 137 mm. On average, January sees 58 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 Scottsdale 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.
