+45.5229° · -122.9898° · ELEV 0m
Hillsboro
United States · Oregon
Monthly weather averages for Hillsboro, United States — temperature highs and lows, rainfall, sunshine hours by month, and the best time to visit.
№ 01
August → FebruaryClimate Overview
Hillsboro has a temperate climate. The warmest month is August (29°C average high) and the coolest is December (7°C).
№ 02
1244 mm / yearRainfall by Month
Hillsboro sees 1244 mm of rain a year. The wettest month is December (220 mm); the driest is July (9 mm).
№ 03
May–SeptemberBest Time to Visit
May–September
9°C – 29°C · 11.8h sun
The best time to visit Hillsboro is May–September, when temperatures average 9°C–29°C with 11.8 sunshine hours per day.
Some visitors prefer April for cooler, drier conditions.
№ 04
12 months · °C · mm · hoursMonthly Breakdown
| January | 8.1°C | 1.7°C | 170 mm | 4.3 h | 07:48 | 16:54 |
|---|---|---|---|---|---|---|
| February | 8.6°C | 1.1°C | 145 mm | 5.3 h | 07:13 | 17:38 |
| March | 11.9°C | 2.7°C | 141 mm | 7.3 h | 07:24 | 19:17 |
| April | 15.0°C | 4.7°C | 108 mm | 9.0 h | 06:26 | 19:57 |
| May | 19.8°C | 8.6°C | 58 mm | 10.6 h | 05:41 | 20:35 |
| June | 23.5°C | 11.2°C | 41 mm | 12.3 h | 05:22 | 21:02 |
| July | 28.3°C | 13.9°C | 9 mm | 13.5 h | 05:37 | 20:57 |
| August | 29.1°C | 14.8°C | 12 mm | 12.4 h | 06:12 | 20:20 |
| September | 23.9°C | 11.8°C | 49 mm | 10.1 h | 06:50 | 19:24 |
| October | 17.4°C | 7.9°C | 128 mm | 7.1 h | 07:28 | 18:27 |
| November | 10.6°C | 3.8°C | 163 mm | 5.2 h | 07:11 | 16:42 |
| December | 7.3°C | 1.5°C | 220 mm | 3.7 h | 07:45 | 16:29 |