July is one of the warmer months of the year in Salem, with average highs near 33.6°C and lows around 23°C (mean 28.3°C). It is about average for rainfall, averaging 63 mm of rainfall and 66% relative humidity across the period.
July is one of the warmer months of the year in Salem. Across 45 years of records, the warmest July in Salem was 2017 — when the month averaged 29.9°C — while the coldest was 2004 at 26.9°C. Typical July days reach 33.6°C with nights near 23°C. The long-term trend is warming, about 0.2°C per decade.
July is about average for rainfall in Salem, averaging 63 mm of rainfall. The wettest July on record was 2020 with 146 mm, while the driest was 2002 at 12 mm.
Relative humidity in Salem during July averages 66%. The most humid July was 2021 at 75%, and the least humid was 1987 at 56%.
July receives about 5.2 kWh/m²/day of solar energy in Salem. The sunniest Julys were 2002 and 2015 at 5.9 kWh/m²/day, and the cloudiest were 1996 and 2024 at 4.6.
Average wind speed in Salem during July is 3.2 m/s. The windiest July was 2009 at 4.2 m/s, while the calmest was 2020 at 2.1 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 28.0°C | 27.9°C | 28.6°C | 28.7°C | 28.3°C | +0.3°C |
| Avg High | 33.3°C | 33.1°C | 33.9°C | 34.3°C | 33.4°C | +0.1°C |
| Avg Low | 22.8°C | 22.7°C | 23.3°C | 23.1°C | 23.0°C | +0.2°C |
| Avg Rain | 67 mm | 51 mm | 71 mm | 53 mm | 80 mm | +14 mm |
July temperatures in Salem have risen by about 0.5°C between 1981–1985 and 2021–2025.
July has ranged from a record low of 20°C (1982) to a record high of 39.8°C (2017).
Rainfall in July is about average for rainfall, averaging 63 mm, with a wettest year of 146 mm.
A good time to visit Salem
July is a good time to visit Salem, with days averaging 33.6°C and nights around 23°C (mean 28.3°C, close to Salem's yearly average) and moderate rainfall. January and December are marginally more temperate, but July still suits most travellers.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 35.1°C | 29.3°C | 23.4°C | 38.1°C | 21.8°C | 22 mm | 63% | 3.3 m/s | 4.9 |
| 2024 | 33.5°C | 28.2°C | 22.8°C | 36.5°C | 21.8°C | 45 mm | 69% | 3.6 m/s | 4.6 |
| 2023 | 35.2°C | 29.3°C | 23.3°C | 39.1°C | 21.8°C | 51 mm | 63% | 3.4 m/s | 4.8 |
| 2022 | 32.8°C | 27.9°C | 22.9°C | 36.4°C | 21.8°C | 101 mm | 71% | 2.7 m/s | 5 |
| 2021 | 32.2°C | 27.4°C | 22.7°C | 34.6°C | 21.6°C | 118 mm | 75% | 2.6 m/s | 5.2 |
| 2020 🌧️ | 31.9°C | 27.5°C | 23.1°C | 34.8°C | 22.1°C | 146 mm | 75% | 2.1 m/s | 5.2 |
| 2019 | 34.7°C | 29.2°C | 23.6°C | 37.8°C | 22.3°C | 52 mm | 64% | 2.9 m/s | 5.2 |
| 2018 | 33.7°C | 28.3°C | 22.9°C | 36.1°C | 21.4°C | 74 mm | 69% | 3.4 m/s | 4.9 |
| 2017 🔥 | 35.9°C | 29.9°C | 24.0°C | 39.8°C | 22.6°C | 43 mm | 58% | 3.3 m/s | 5.3 |
| 2016 | 34.1°C | 28.7°C | 23.4°C | 37.9°C | 20.3°C | 84 mm | 66% | 3 m/s | 5.3 |
| 2015 | 35.3°C | 29.2°C | 23.2°C | 37.8°C | 21.6°C | 20 mm | 63% | 3.1 m/s | 5.9 |
| 2014 | 34.7°C | 29.1°C | 23.5°C | 37.1°C | 22.2°C | 20 mm | 62% | 3.9 m/s | 5.3 |
| 2013 | 33.8°C | 28.3°C | 22.8°C | 35.6°C | 21.8°C | 31 mm | 64% | 3.9 m/s | 4.7 |
| 2012 | 34.7°C | 29.0°C | 23.2°C | 37.2°C | 21.6°C | 63 mm | 64% | 2.9 m/s | 5.6 |
| 2011 | 33.6°C | 28.0°C | 22.5°C | 36.3°C | 21.0°C | 74 mm | 65% | 3.5 m/s | 5.3 |
| 2010 | 32.6°C | 27.4°C | 22.3°C | 35.0°C | 21.1°C | 74 mm | 71% | 2.9 m/s | 5 |
| 2009 | 34.7°C | 29.0°C | 23.4°C | 38.3°C | 21.9°C | 38 mm | 60% | 4.2 m/s | 5.1 |
| 2008 | 33.4°C | 28.4°C | 23.3°C | 37.5°C | 21.2°C | 125 mm | 65% | 2.8 m/s | 5.5 |
| 2007 | 32.8°C | 28.1°C | 23.4°C | 36.5°C | 22.0°C | 86 mm | 68% | 3 m/s | 4.9 |
| 2006 | 35.2°C | 29.4°C | 23.6°C | 38.6°C | 22.5°C | 18 mm | 60% | 4 m/s | 5.5 |
| 2005 | 33.4°C | 28.5°C | 23.7°C | 37.0°C | 22.3°C | 40 mm | 65% | 3.5 m/s | 5.3 |
| 2004 ❄️ | 31.7°C | 26.9°C | 22.1°C | 35.3°C | 20.5°C | 113 mm | 74% | 2.5 m/s | 5.3 |
| 2003 | 32.9°C | 28.0°C | 23.2°C | 36.0°C | 21.8°C | 68 mm | 69% | 2.7 m/s | 5.1 |
| 2002 | 36.0°C | 29.7°C | 23.5°C | 38.6°C | 21.5°C | 12 mm | 59% | 3.5 m/s | 5.9 |
| 2001 | 34.4°C | 28.9°C | 23.4°C | 38.4°C | 21.6°C | 107 mm | 62% | 3.7 m/s | 5.6 |
| 2000 | 34.3°C | 28.8°C | 23.3°C | 38.5°C | 22.0°C | 99 mm | 60% | 3.7 m/s | 5.4 |
| 1999 | 33.2°C | 28.0°C | 22.7°C | 36.0°C | 21.0°C | 35 mm | 65% | 3.4 m/s | 5.4 |
| 1998 | 33.1°C | 28.3°C | 23.4°C | 36.7°C | 21.8°C | 74 mm | 67% | 3.1 m/s | 5.1 |
| 1997 | 33.7°C | 28.3°C | 22.9°C | 37.3°C | 21.6°C | 41 mm | 67% | 3.5 m/s | 4.9 |
| 1996 | 32.7°C | 27.6°C | 22.6°C | 36.0°C | 20.9°C | 28 mm | 69% | 3.2 m/s | 4.6 |
| 1995 | 32.8°C | 27.7°C | 22.6°C | 36.0°C | 21.4°C | 68 mm | 70% | 3 m/s | 4.8 |
| 1994 | 33.0°C | 27.7°C | 22.4°C | 34.9°C | 21.1°C | 76 mm | 68% | 3.6 m/s | 4.7 |
| 1993 | 33.3°C | 27.9°C | 22.6°C | 35.8°C | 21.2°C | 72 mm | 66% | 3.7 m/s | 5 |
| 1992 | 32.2°C | 27.4°C | 22.7°C | 35.8°C | 21.5°C | 59 mm | 70% | 3.1 m/s | 5 |
| 1991 | 33.0°C | 27.6°C | 22.2°C | 34.8°C | 20.2°C | 26 mm | 67% | 3.8 m/s | 4.7 |
| 1990 | 34.3°C | 28.5°C | 22.6°C | 38.3°C | 20.0°C | 33 mm | 61% | 3.6 m/s | 5.2 |
| 1989 | 31.8°C | 27.2°C | 22.5°C | 38.3°C | 20.7°C | 99 mm | 70% | 2.8 m/s | 5.1 |
| 1988 | 31.4°C | 27.1°C | 22.7°C | 36.3°C | 21.5°C | 116 mm | 73% | 2.6 m/s | 4.8 |
| 1987 | 35.5°C | 29.8°C | 24.0°C | 39.6°C | 22.8°C | 25 mm | 56% | 3.2 m/s | 5.6 |
| 1986 | 34.5°C | 28.9°C | 23.3°C | 37.8°C | 21.7°C | 26 mm | 59% | 3.4 m/s | 5.4 |
| 1985 | 33.2°C | 27.6°C | 22.0°C | 35.8°C | 20.6°C | 41 mm | 64% | 3.1 m/s | 5.2 |
| 1984 | 32.5°C | 27.3°C | 22.2°C | 36.2°C | 20.3°C | 124 mm | 67% | 3.2 m/s | 5.4 |
| 1983 | 34.1°C | 28.5°C | 23.0°C | 39.2°C | 21.2°C | 26 mm | 60% | 3.3 m/s | — |
| 1982 | 34.0°C | 28.3°C | 22.7°C | 38.8°C | 20.0°C | 42 mm | 63% | 3.4 m/s | — |
| 1981 | 32.8°C | 27.7°C | 22.6°C | 36.6°C | 21.4°C | 104 mm | 69% | 2.8 m/s | — |
Actual recorded July data for each year, 1981–2025 — sourced from NASA POWER.
The average high in July is around 33.6°C with lows near 23°C (mean 28.3°C), based on 45 years of NASA POWER data.
July averages 63 mm of rainfall in Salem, about average for rainfall. The wettest on record was 146 mm in 2020.
The hottest July reached 39.8°C in 2017. The coldest dipped to 20°C in 1982.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average July temperatures have risen by about 0.5°C. Daytime highs moved from 33.3°C to 33.8°C and overnight lows from 22.5°C to 23°C over the same span.
July is one of the warmer months of the year in Salem and about average for rainfall, so plan for around 33.6°C daytime highs and 23°C at night.
Not quite — July is the 8th coolest month in Salem, averaging 28.3°C.
For July in Salem, pack light, breathable clothing and sun protection, with typical highs of 33.6°C and lows of 23°C. Bring an umbrella or light rain jacket too.
Relative humidity in July averages 66% — moderately humid.
Average wind speed in July is 3.2 m/s. The windiest July on record averaged 4.2 m/s (2009).
The wettest July on record was 2020 with 146 mm. On average, July sees 63 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 Salem 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.
