January is one of the cooler months of the year in Fresno, with average highs near 15°C and lows around 5.4°C (mean 10.2°C). It is a relatively wet time of year, averaging 84 mm of rainfall and 68% relative humidity across the period.
January is one of the cooler months of the year in Fresno. Across 45 years of records, the warmest January in Fresno was 2014 — when the month averaged 14.5°C — while the coldest was 1982 at 6.9°C. Typical January days reach 15°C with nights near 5.4°C. The long-term trend is warming, about 0.2°C per decade.
January is a relatively wet time of year in Fresno, averaging 84 mm of rainfall. The wettest January on record was 2017 with 280 mm, while the driest was 2022 at 1 mm.
Relative humidity in Fresno during January averages 68%. The most humid January was 1997 at 83%, and the least humid was 2014 at 41%.
January receives about 2.4 kWh/m²/day of solar energy in Fresno. The sunniest January was 2025 at 3.2 kWh/m²/day, and the cloudiest was 2005 at 1.9.
Average wind speed in Fresno during January is 1.5 m/s. The windiest January was 1995 at 2.2 m/s, while the calmest were 2015 and 2022 at 1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 9.9°C | 10.0°C | 9.9°C | 11.0°C | 10.4°C | +0.5°C |
| Avg High | 15.0°C | 14.7°C | 14.6°C | 15.8°C | 15.2°C | +0.2°C |
| Avg Low | 4.8°C | 5.4°C | 5.1°C | 6.3°C | 5.7°C | +0.9°C |
| Avg Rain | 63 mm | 124 mm | 73 mm | 84 mm | 69 mm | +6 mm |
January temperatures in Fresno have risen by about 0.7°C between 1981–1985 and 2021–2025.
January has ranged from a record low of -3.9°C (1981) to a record high of 26.5°C (2014).
Rainfall in January is a relatively wet time of year, averaging 84 mm, with a wettest year of 280 mm.
A quieter season to visit Fresno
If your dates are flexible, the more temperate months of May and October tend to be the most comfortable for visiting Fresno. That said, January — with days averaging 15°C and nights around 5.4°C (mean 10.2°C) and higher rainfall (84 mm) — can still be rewarding for travellers who don't mind the cooler conditions, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 16.4°C | 10.6°C | 4.9°C | 20.8°C | 2.3°C | 12 mm | 60% | 1.4 m/s | 3.2 |
| 2024 | 15.4°C | 11.1°C | 6.8°C | 24.6°C | -1.3°C | 77 mm | 75% | 1.4 m/s | 2.3 |
| 2023 | 12.1°C | 8.2°C | 4.3°C | 16.7°C | -1.2°C | 191 mm | 83% | 2 m/s | 2.5 |
| 2022 | 16.3°C | 11.4°C | 6.5°C | 19.1°C | -0.5°C | 1 mm | 64% | 1 m/s | 2.9 |
| 2021 | 15.8°C | 10.9°C | 6.1°C | 24.2°C | -0.2°C | 113 mm | 64% | 1.5 m/s | 2.6 |
| 2020 | 14.9°C | 10.3°C | 5.8°C | 19.9°C | 2.8°C | 17 mm | 75% | 1.4 m/s | 2.5 |
| 2019 | 15.6°C | 11.2°C | 6.7°C | 19.7°C | 0.5°C | 101 mm | 72% | 1.7 m/s | 2.5 |
| 2018 | 18.0°C | 13.1°C | 8.1°C | 22.6°C | 2.7°C | 52 mm | 65% | 1.3 m/s | 2.5 |
| 2017 🌧️ | 11.8°C | 8.1°C | 4.4°C | 17.0°C | 0.5°C | 280 mm | 80% | 1.9 m/s | 2.2 |
| 2016 | 14.2°C | 10.3°C | 6.3°C | 20.9°C | 1.2°C | 146 mm | 76% | 1.5 m/s | 2.2 |
| 2015 | 18.0°C | 12.8°C | 7.7°C | 23.6°C | -1.9°C | 3 mm | 64% | 1 m/s | 2.4 |
| 2014 🔥 | 20.6°C | 14.5°C | 8.4°C | 26.5°C | 3.6°C | 19 mm | 41% | 1.3 m/s | 3 |
| 2013 | 13.7°C | 8.5°C | 3.4°C | 20.9°C | -3.3°C | 21 mm | 67% | 1.3 m/s | 3 |
| 2012 | 17.6°C | 12.0°C | 6.3°C | 23.1°C | -0.3°C | 60 mm | 47% | 1.4 m/s | 2.9 |
| 2011 | 13.9°C | 9.6°C | 5.3°C | 18.9°C | -0.8°C | 55 mm | 72% | 1.2 m/s | 2.1 |
| 2010 | 14.7°C | 10.3°C | 6.0°C | 21.2°C | 2.5°C | 106 mm | 71% | 1.6 m/s | 2 |
| 2009 | 17.1°C | 11.4°C | 5.7°C | 24.4°C | -0.2°C | 56 mm | 61% | 1.2 m/s | 2.6 |
| 2008 | 12.3°C | 8.0°C | 3.6°C | 17.4°C | 0.5°C | 147 mm | 73% | 1.9 m/s | 2.3 |
| 2007 | 14.2°C | 8.5°C | 2.8°C | 20.3°C | -3.8°C | 13 mm | 55% | 1.3 m/s | 3.1 |
| 2006 | 14.5°C | 9.9°C | 5.2°C | 21.2°C | -1.1°C | 99 mm | 74% | 1.4 m/s | 2.5 |
| 2005 | 13.7°C | 9.7°C | 5.7°C | 21.2°C | 0.6°C | 119 mm | 78% | 1.4 m/s | 1.9 |
| 2004 | 14.1°C | 9.6°C | 5.1°C | 20.1°C | -1.6°C | 35 mm | 70% | 1.4 m/s | 2.1 |
| 2003 | 18.7°C | 13.7°C | 8.7°C | 24.1°C | 4.8°C | 12 mm | 67% | 1.1 m/s | 2.2 |
| 2002 | 12.9°C | 8.2°C | 3.6°C | 18.7°C | -3.9°C | 31 mm | 70% | 1.2 m/s | 2.4 |
| 2001 | 14.1°C | 8.9°C | 3.7°C | 21.7°C | -1.8°C | 83 mm | 62% | 1.5 m/s | 2.7 |
| 2000 | 14.8°C | 10.8°C | 6.8°C | 19.7°C | 2.9°C | 138 mm | 72% | 1.6 m/s | 2.2 |
| 1999 | 14.6°C | 9.9°C | 5.2°C | 19.5°C | -0.9°C | 96 mm | 66% | 1.3 m/s | 2.1 |
| 1998 | 14.2°C | 10.3°C | 6.3°C | 19.6°C | 0.8°C | 161 mm | 79% | 1.5 m/s | 2.2 |
| 1997 | 13.2°C | 9.5°C | 5.7°C | 18.7°C | -0.9°C | 198 mm | 83% | 1.8 m/s | 2.2 |
| 1996 | 15.0°C | 10.5°C | 6.0°C | 21.6°C | 1.6°C | 113 mm | 70% | 1.5 m/s | 2.2 |
| 1995 | 13.0°C | 9.7°C | 6.4°C | 22.7°C | 0.9°C | 246 mm | 83% | 2.2 m/s | 2.1 |
| 1994 | 16.9°C | 11.4°C | 5.9°C | 23.3°C | -0.2°C | 42 mm | 56% | 1.3 m/s | 2.7 |
| 1993 | 12.8°C | 8.8°C | 4.7°C | 18.5°C | -2.5°C | 207 mm | 77% | 1.8 m/s | 2.1 |
| 1992 | 15.2°C | 9.8°C | 4.5°C | 21.5°C | -1.3°C | 89 mm | 64% | 1.3 m/s | 2.2 |
| 1991 | 16.0°C | 10.3°C | 4.6°C | 20.6°C | -1.4°C | 13 mm | 58% | 1.3 m/s | 2.8 |
| 1990 | 15.6°C | 10.1°C | 4.6°C | 23.7°C | -0.4°C | 76 mm | 64% | 1.5 m/s | 2.6 |
| 1989 | 14.3°C | 8.6°C | 3.0°C | 21.8°C | -1.4°C | 17 mm | 63% | 1.3 m/s | 2.9 |
| 1988 | 14.7°C | 9.7°C | 4.6°C | 21.2°C | -0.8°C | 63 mm | 67% | 1.7 m/s | 2.5 |
| 1987 | 14.3°C | 9.0°C | 3.6°C | 21.0°C | -2.8°C | 56 mm | 59% | 1.5 m/s | 2.4 |
| 1986 | 17.6°C | 12.9°C | 8.1°C | 22.0°C | 4.2°C | 60 mm | 67% | 1.5 m/s | 2.3 |
| 1985 | 14.3°C | 9.0°C | 3.6°C | 18.5°C | -2.4°C | 20 mm | 65% | 1.2 m/s | 2.2 |
| 1984 | 16.0°C | 10.7°C | 5.4°C | 22.4°C | 1.2°C | 5 mm | 68% | 1.1 m/s | 2.5 |
| 1983 | 14.9°C | 10.2°C | 5.5°C | 23.6°C | -0.5°C | 149 mm | 73% | 1.7 m/s | — |
| 1982 ❄️ | 11.5°C | 6.9°C | 2.4°C | 19.7°C | -3.6°C | 103 mm | 74% | 1.5 m/s | — |
| 1981 | 17.0°C | 11.9°C | 6.8°C | 22.5°C | -3.9°C | 93 mm | 59% | 1.5 m/s | — |
Actual recorded January data for each year, 1981–2025 — sourced from NASA POWER.
The average high in January is around 15°C with lows near 5.4°C (mean 10.2°C), based on 45 years of NASA POWER data.
January averages 84 mm of rainfall in Fresno, a relatively wet time of year. The wettest on record was 280 mm in 2017.
The hottest January reached 26.5°C in 2014. The coldest dipped to -3.9°C in 1981.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average January temperatures have risen by about 0.7°C. Daytime highs moved from 14.7°C to 15.2°C and overnight lows from 4.7°C to 5.7°C over the same span.
January is one of the cooler months of the year in Fresno and a relatively wet time of year, so plan for around 15°C daytime highs and 5.4°C at night.
Not quite — January is the 2nd coolest month in Fresno, averaging 10.2°C.
For January in Fresno, pack warm layers and a jacket for chilly mornings, with typical highs of 15°C and lows of 5.4°C. Bring an umbrella or light rain jacket too.
Relative humidity in January averages 68% — moderately humid.
Average wind speed in January is 1.5 m/s. The windiest January on record averaged 2.2 m/s (1995).
The wettest January on record was 2017 with 280 mm. On average, January sees 84 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 Fresno 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.
