July is one of the cooler months of the year in Griffith, with average highs near 14.3°C and lows around 3.8°C (mean 9.1°C). It is about average for rainfall, averaging 37 mm of rainfall and 79% relative humidity across the period.
July is one of the cooler months of the year in Griffith. Across 45 years of records, the warmest July in Griffith was 2023 — when the month averaged 10.5°C — while the coldest was 1995 at 7.6°C. Typical July days reach 14.3°C with nights near 3.8°C. The long-term trend is warming, about 0.3°C per decade.
July is about average for rainfall in Griffith, averaging 37 mm of rainfall. The wettest July on record was 1993 with 92 mm, while the driest was 1982 at 2 mm.
Relative humidity in Griffith during July averages 79%. The most humid July was 1989 at 87%, and the least humid was 2002 at 66%.
July receives about 2.6 kWh/m²/day of solar energy in Griffith. The sunniest Julys were 1985 and 1997 at 3 kWh/m²/day, and the cloudiest was 1984 at 1.8.
Average wind speed in Griffith during July is 2.4 m/s. The windiest July was 1981 at 2.9 m/s, while the calmest was 1982 at 1.8 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 8.2°C | 8.9°C | 9.3°C | 9.4°C | 9.5°C | +1.3°C |
| Avg High | 13.4°C | 14.0°C | 14.8°C | 14.7°C | 14.7°C | +1.3°C |
| Avg Low | 3.1°C | 3.8°C | 3.9°C | 4.1°C | 4.3°C | +1.2°C |
| Avg Rain | 51 mm | 43 mm | 34 mm | 29 mm | 26 mm | -24 mm |
July temperatures in Griffith have risen by about 1.4°C between 1981–1985 and 2021–2025.
July has ranged from a record low of -3.4°C (1986) to a record high of 22.7°C (2018).
Rainfall in July is about average for rainfall, averaging 37 mm, with a wettest year of 92 mm.
A quieter season to visit Griffith
If your dates are flexible, the more temperate months of March and November tend to be the most comfortable for visiting Griffith. That said, July — with days averaging 14.3°C and nights around 3.8°C (mean 9.1°C) and moderate rainfall (37 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 | 14.8°C | 9.7°C | 4.6°C | 18.0°C | 0.7°C | 27 mm | 75% | 2.7 m/s | 2.6 |
| 2024 | 14.7°C | 9.3°C | 4.0°C | 18.2°C | -0.7°C | 25 mm | 79% | 2.6 m/s | 2.6 |
| 2023 🔥 | 16.3°C | 10.5°C | 4.7°C | 22.0°C | 0.5°C | 18 mm | 79% | 2.1 m/s | 2.7 |
| 2022 | 14.5°C | 9.4°C | 4.2°C | 19.8°C | -0.8°C | 21 mm | 81% | 2.6 m/s | 2.8 |
| 2021 | 13.4°C | 8.6°C | 3.9°C | 21.2°C | -0.7°C | 30 mm | 80% | 2.7 m/s | 2.4 |
| 2020 | 14.6°C | 9.4°C | 4.3°C | 19.9°C | -0.1°C | 36 mm | 85% | 2.1 m/s | 2.8 |
| 2019 | 15.6°C | 10.3°C | 4.9°C | 19.8°C | 1.2°C | 21 mm | 76% | 2.5 m/s | 2.7 |
| 2018 | 15.8°C | 9.6°C | 3.4°C | 22.7°C | -0.6°C | 5 mm | 69% | 2.5 m/s | 2.9 |
| 2017 | 15.7°C | 9.8°C | 3.9°C | 22.4°C | -1.8°C | 16 mm | 69% | 2.4 m/s | 2.8 |
| 2016 | 14.4°C | 9.7°C | 4.9°C | 20.5°C | -0.2°C | 42 mm | 85% | 2.6 m/s | 2.2 |
| 2015 | 13.2°C | 8.1°C | 3.0°C | 16.8°C | -1.7°C | 35 mm | 80% | 2.4 m/s | 2.7 |
| 2014 | 14.0°C | 9.1°C | 4.3°C | 20.7°C | 0.1°C | 19 mm | 81% | 2.6 m/s | 2.7 |
| 2013 | 15.5°C | 10.4°C | 5.2°C | 20.3°C | -0.4°C | 39 mm | 81% | 2.5 m/s | 2.7 |
| 2012 | 13.9°C | 8.9°C | 3.8°C | 18.6°C | -0.1°C | 39 mm | 83% | 2.4 m/s | 2.8 |
| 2011 | 14.3°C | 9.3°C | 4.3°C | 20.2°C | 0.6°C | 26 mm | 80% | 2.7 m/s | 2.7 |
| 2010 | 14.2°C | 8.9°C | 3.7°C | 17.6°C | -0.5°C | 47 mm | 84% | 2 m/s | 2.5 |
| 2009 | 14.8°C | 9.6°C | 4.3°C | 21.0°C | 0.9°C | 18 mm | 78% | 2.6 m/s | 2.7 |
| 2008 | 14.5°C | 9.2°C | 3.8°C | 19.4°C | 1.0°C | 43 mm | 75% | 2.6 m/s | 2.6 |
| 2007 | 14.0°C | 8.8°C | 3.6°C | 21.5°C | -0.5°C | 36 mm | 80% | 2.4 m/s | 2.8 |
| 2006 | 14.9°C | 9.5°C | 4.1°C | 17.3°C | -0.6°C | 43 mm | 78% | 2.2 m/s | 2.5 |
| 2005 | 15.1°C | 9.8°C | 4.6°C | 19.3°C | -1.0°C | 45 mm | 81% | 2.2 m/s | 2.5 |
| 2004 | 13.8°C | 8.5°C | 3.3°C | 17.8°C | -1.3°C | 28 mm | 77% | 2.2 m/s | 2.5 |
| 2003 | 15.4°C | 9.8°C | 4.1°C | 21.6°C | -0.5°C | 56 mm | 75% | 2.5 m/s | 2.8 |
| 2002 | 16.1°C | 9.6°C | 3.1°C | 21.4°C | -0.4°C | 11 mm | 66% | 2.4 m/s | 2.9 |
| 2001 | 14.9°C | 9.5°C | 4.1°C | 18.6°C | 1.0°C | 32 mm | 82% | 1.9 m/s | 2.7 |
| 2000 | 14.6°C | 9.2°C | 3.8°C | 18.2°C | -0.1°C | 22 mm | 79% | 2.2 m/s | 2.8 |
| 1999 | 15.6°C | 10.1°C | 4.5°C | 20.2°C | 1.2°C | 13 mm | 78% | 2.3 m/s | 2.7 |
| 1998 | 12.9°C | 8.3°C | 3.7°C | 19.0°C | -2.4°C | 44 mm | 81% | 2.5 m/s | 2.3 |
| 1997 | 14.5°C | 8.3°C | 2.1°C | 20.8°C | -3.0°C | 13 mm | 76% | 2.1 m/s | 3 |
| 1996 | 13.2°C | 8.9°C | 4.5°C | 17.7°C | -1.3°C | 73 mm | 83% | 2.3 m/s | 2.2 |
| 1995 ❄️ | 11.9°C | 7.6°C | 3.3°C | 16.1°C | -2.4°C | 56 mm | 85% | 2.6 m/s | 2.3 |
| 1994 | 15.3°C | 9.2°C | 3.2°C | 20.4°C | -2.3°C | 16 mm | 74% | 2.1 m/s | 2.9 |
| 1993 🌧️ | 15.6°C | 10.2°C | 4.8°C | 20.2°C | 0.3°C | 92 mm | 79% | 2.1 m/s | 2.5 |
| 1992 | 14.5°C | 8.9°C | 3.3°C | 19.8°C | -0.5°C | 30 mm | 79% | 2.3 m/s | 2.8 |
| 1991 | 13.6°C | 8.8°C | 4.0°C | 18.7°C | 0.4°C | 36 mm | 83% | 2.4 m/s | 2.5 |
| 1990 | 13.3°C | 9.0°C | 4.6°C | 18.8°C | -0.5°C | 61 mm | 85% | 2.6 m/s | 2.4 |
| 1989 | 11.8°C | 7.7°C | 3.6°C | 18.0°C | -1.0°C | 42 mm | 87% | 2.5 m/s | 2.5 |
| 1988 | 14.6°C | 9.7°C | 4.8°C | 18.4°C | 1.0°C | 65 mm | 86% | 2.5 m/s | 2.4 |
| 1987 | 14.0°C | 8.5°C | 3.1°C | 17.7°C | 0.1°C | 33 mm | 77% | 2 m/s | 2.8 |
| 1986 | 12.6°C | 7.9°C | 3.3°C | 17.5°C | -3.4°C | 70 mm | 83% | 2.7 m/s | 2.5 |
| 1985 | 14.5°C | 8.5°C | 2.4°C | 21.9°C | -2.0°C | 16 mm | 75% | 2.4 m/s | 3 |
| 1984 | 12.6°C | 8.0°C | 3.4°C | 17.9°C | 1.3°C | 80 mm | 81% | 2.5 m/s | 1.8 |
| 1983 | 12.6°C | 7.8°C | 3.0°C | 17.6°C | -1.6°C | 59 mm | 85% | 2.5 m/s | — |
| 1982 | 14.4°C | 7.8°C | 1.1°C | 17.8°C | -1.5°C | 2 mm | 73% | 1.8 m/s | — |
| 1981 | 13.2°C | 8.3°C | 3.4°C | 18.3°C | 0.4°C | 90 mm | 82% | 2.9 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 14.3°C with lows near 3.8°C (mean 9.1°C), based on 45 years of NASA POWER data.
July averages 37 mm of rainfall in Griffith, about average for rainfall. The wettest on record was 92 mm in 1993.
The hottest July reached 22.7°C in 2018. The coldest dipped to -3.4°C in 1986.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 1.4°C. Daytime highs moved from 13.5°C to 14.7°C and overnight lows from 2.7°C to 4.3°C over the same span.
July is one of the cooler months of the year in Griffith and about average for rainfall, so plan for around 14.3°C daytime highs and 3.8°C at night.
Yes — July is the coldest month of the year in Griffith, averaging 9.1°C.
For July in Griffith, pack warm layers and a jacket for chilly mornings, with typical highs of 14.3°C and lows of 3.8°C.
Relative humidity in July averages 79% — quite humid.
Average wind speed in July is 2.4 m/s. The windiest July on record averaged 2.9 m/s (1981).
The wettest July on record was 1993 with 92 mm. On average, July sees 37 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 Griffith behaves each July, 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 July specifically, along with year-by-year records and how the month has changed over the decades.
