Hillsboro weather in July: Hillsboro, Oregon: normal highs, lows, rain and records for July
Hillsboro in July has a normal high of 82°F and a normal low of 52°F, a daily mean of 67°F, rising from 78°F on the 1st to 84°F by the 31st. Measurable precipitation falls on 3 days in a normal July, 0.37 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 28°C and low of 11°C, 9 mm of precipitation in July.
- NOAA stationPortland-Hillsboro Airport
- Station IDUSW00094261
- Location45.54°N 122.95°W
- Elevation204 ft (62 m)
- Population110,337
- Jan 47° 34°
- Feb 51° 34°
- Mar 56° 37°
- Apr 61° 39°
- May 69° 45°
- Jun 74° 49°
- Jul 82° 52°
- Aug 82° 52°
- Sep 76° 48°
- Oct 64° 41°
- Nov 53° 37°
- Dec 46° 33°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Hillsboro in July?
The normal high is 82°F and the normal low 52°F, for a daily mean of 67.2°F. July is 6.2°F warmer than June and 0.1°F warmer than August. July is the warmest month of the year in Hillsboro and the 12th wettest. Across the month the normal high rises 6°F, from 78°F on July 1 to 84°F on July 31. From one year to the next July's mean temperature typically moves about 2.3°F either way (NOAA's standard deviation), so roughly two Julys in three average between 65°F and 70°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 18%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 78°F | 50°F | 18% | 7% |
| July 8 | 81°F | 51°F | 14% | 5% |
| July 15 | 83°F | 52°F | 11% | 4% |
| July 22 | 84°F | 53°F | 9% | 3% |
| July 31 | 84°F | 53°F | 8% | 3% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 27, coldest night July 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 78°F | 50°F | 18% | 7% | 15 h 40 min |
| July 2 | 78°F | 51°F | 17% | 7% | 15 h 40 min |
| July 3 | 79°F | 51°F | 17% | 7% | 15 h 40 min |
| July 4 | 79°F | 51°F | 16% | 6% | 15 h 40 min |
| July 5 | 80°F | 51°F | 15% | 6% | 15 h 40 min |
| July 6 | 80°F | 51°F | 15% | 6% | 15 h 30 min |
| July 7 | 80°F | 51°F | 14% | 6% | 15 h 30 min |
| July 8 | 81°F | 51°F | 14% | 5% | 15 h 30 min |
| July 9 | 81°F | 52°F | 13% | 5% | 15 h 30 min |
| July 10 | 81°F | 52°F | 13% | 5% | 15 h 30 min |
| July 11 | 81°F | 52°F | 12% | 5% | 15 h 30 min |
| July 12 | 82°F | 52°F | 12% | 4% | 15 h 30 min |
| July 13 | 82°F | 52°F | 12% | 4% | 15 h 30 min |
| July 14 | 82°F | 52°F | 11% | 4% | 15 h 20 min |
| July 15 | 83°F | 52°F | 11% | 4% | 15 h 20 min |
| July 16 | 83°F | 53°F | 11% | 4% | 15 h 20 min |
| July 17 | 83°F | 53°F | 10% | 4% | 15 h 20 min |
| July 18 | 83°F | 53°F | 10% | 4% | 15 h 20 min |
| July 19 | 83°F | 53°F | 10% | 3% | 15 h 20 min |
| July 20 | 84°F | 53°F | 9% | 3% | 15 h 10 min |
| July 21 | 84°F | 53°F | 9% | 3% | 15 h 10 min |
| July 22 | 84°F | 53°F | 9% | 3% | 15 h 10 min |
| July 23 | 84°F | 53°F | 9% | 3% | 15 h 10 min |
| July 24 | 84°F | 53°F | 9% | 3% | 15 h 10 min |
| July 25 | 84°F | 53°F | 8% | 3% | 15 h |
| July 26 | 84°F | 53°F | 8% | 3% | 15 h |
| July 27 | 84°F | 53°F | 8% | 3% | 15 h |
| July 28 | 84°F | 53°F | 8% | 3% | 15 h |
| July 29 | 84°F | 53°F | 8% | 3% | 14 h 50 min |
| July 30 | 84°F | 53°F | 8% | 3% | 14 h 50 min |
| July 31 | 84°F | 53°F | 8% | 3% | 14 h 50 min |
- Normal high
- 82°FJuly average
- Normal low
- 52°FJuly average
- Precipitation
- 0.37 inmonth total
- Days with precipitation
- 30.01 inch or more
- Days at 90°F or more
- 6
- Daylight
- 15 h 40 min to 14 h 50 minJuly 1 to July 31
- Days at 70°F or more
- 29
- Days at 80°F or more
- 18
- Sunshine
- 83%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00094261; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Hillsboro in July?
On a given July day the chance of 0.01 inch or more is 11% on average, highest around July 1 (18%). In all, 0.37 in falls on 3 days of a normal July.
In a normal July in Hillsboro, 6 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00094261.
How humid and windy is Hillsboro in July?
At 3 p.m. the normal temperature is 82°F with 38% relative humidity and a dew point of 54°F; at 6 a.m. it is 57°F with 84% humidity. The wind averages 5.0 mph, most often from the north-northwest in the afternoon.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 57°F | 52°F | 84% | 1.3 mph | 71% |
| 9 a.m. | 67°F | 54°F | 62% | 2.6 mph | 66% |
| noon | 76°F | 54°F | 47% | 4.3 mph | 73% |
| 3 p.m. | 82°F | 54°F | 38% | 6.6 mph | 77% |
| 6 p.m. | 80°F | 54°F | 41% | 9.9 mph | 85% |
| 9 p.m. | 68°F | 54°F | 61% | 8.4 mph | 88% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00094261. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for July in Hillsboro?
The warmest July temperature on Hillsboro's official record (since 1929) is 108°F, on July 19, 1956; the coldest is 36°F, on July 25, 1930. The wettest July brought 2.81 in (1983).
The July mean against the 1991-2020 normal of 67.2°F: 2021 69.4°F (+2.2), 2022 70.0°F (+2.8), 2023 69.5°F (+2.3), 2024 70.4°F (+3.2), 2025 69.3°F (+2.1), 2026 67.8°F (+0.6). 6 of 6 ran warmer than normal.
| July | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 69.4°F | +2.2°F | 0.01 in |
| 2022 | 70.0°F | +2.8°F | 0.13 in |
| 2023 | 69.5°F | +2.3°F | 0.02 in |
| 2024 | 70.4°F | +3.2°F | 0.07 in |
| 2025 | 69.3°F | +2.1°F | 0.00 in |
| 2026 | 67.8°F | +0.6°F | 0.24 in |
Source: records: ACIS, NWS threaded record HIOthr; recent months: ACIS, station USW00094261. Records and recent months use complete months only.
How does July in Hillsboro compare across Oregon?
Across the 105 places PlainClimate covers in Oregon, July normal highs run from 64°F in Newport to 95°F in Ontario; Hillsboro's is 82°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.