Downtown Portland, Oregon, United States Climate

Weather: 10.99°C/51.78°F, Wind SW at 3.09 km/h, 82% Humidity, 0% Chance of rain

United States
(Photo by peter bucks on Unsplash)
Contents

Downtown Portland Climate Summary

Located at an elevation of None meters (0 feet) above sea level, Downtown Portland has a Mediterranean, warm summer climate (Classification: Csb). The district’s yearly temperature is 14.33ºC (57.79ºF) and it is 1.69% higher than United States’s averages. Downtown Portland typically receives about 35.64 millimeters (1.4 inches) of precipitation and has 42.37 rainy days (11.61% of the time) annually.

CountryUnited States
CityOregon
Longitude-122.6801343
Latitude45.5134542
Attitude/ElevationNonem (0ft)
Local timeFriday 06:02
Annual high temperature17.52ºC (63.54ºF)
Annual low temperature9.38ºC (48.88ºF)
Average annual precip.35.64mm (1.4in)
Warmest monthAugust (28.81ºC / 83.86ºF)
Coldest MonthFebruary (2.79ºC / 37.02ºF)
Wettest MonthJanuary (77.14mm / 3.04in)
Driest MonthJuly (4.66mm / 0.18in)
Number of days with rainfall (≥ 1.0 mm)42.37 days (11.61%)
Days with no rain322.63 days (88.39%)
Humidity65.75%

Climate Downtown Portland: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)15.0(59.0)16.0(60.8)23.0(73.4)34.0(93.2)35.0(95.0)35.0(95.0)39.0(102.2)39.0(102.2)35.0(95.0)32.0(89.6)19.0(66.2)13.0(55.4)39.0(102.2)
Average high °C (°F)9.04(48.27)8.11(46.6)12.49(54.48)16.18(61.12)21.69(71.04)23.53(74.35)28.39(83.1)28.81(83.86)24.16(75.49)17.35(63.23)11.93(53.47)8.51(47.32)17.52(63.54)
Daily mean °C (°F)7.38(45.28)5.87(42.57)9.2(48.56)13.1(55.58)17.97(64.35)19.76(67.57)23.81(74.86)24.09(75.36)20.22(68.4)14.25(57.65)9.64(49.35)6.7(44.06)14.33(57.79)
Average low °C (°F)4.59(40.26)2.79(37.02)4.66(40.39)8.14(46.65)11.68(53.02)12.69(54.84)16.25(61.25)17.11(62.8)14.57(58.23)9.76(49.57)6.26(43.27)4.03(39.25)9.38(48.88)
Record low °C (°F)-4.0(24.8)-4.0(24.8)-2.0(28.4)2.0(35.6)7.0(44.6)7.0(44.6)11.0(51.8)13.0(55.4)5.0(41.0)0.0(0)-1.0(30.2)-2.0(28.4)-4.0(24.8)
Average precipitation mm (inches)77.14(3.04)44.63(1.76)30.28(1.19)41.78(1.64)23.84(0.94)27.19(1.07)4.66(0.18)4.98(0.2)31.97(1.26)33.29(1.31)45.58(1.79)62.34(2.45)35.64(1.4)
Average precipitation days (≥ 1.0 mm)6.04.644.094.453.02.640.911.552.912.914.05.273.53
Average relative humidity (%)77.5575.1366.365.1260.8259.1255.455.3161.2262.7171.2279.0465.75
Mean monthly sunshine hours5.797.59.128.9812.4314.3314.1111.3510.399.286.425.539.6

Climate Graph

The chart below shows the mean monthly temperature and precipitation of Downtown Portland in recent years.

Downtown Portland

Downtown Portland Temperature by Month

August
24.09°C | 75.36°F
July
23.81°C | 74.86°F
September
20.22°C | 68.4°F
June
19.76°C | 67.57°F
May
17.97°C | 64.35°F
October
14.25°C | 57.65°F
April
13.1°C | 55.58°F
November
9.64°C | 49.35°F
March
9.2°C | 48.56°F
January
7.38°C | 45.28°F
December
6.7°C | 44.06°F
February
5.87°C | 42.57°F

Historical Data

Summary
  • 2020
  • 2019
  • 2018
  • January
  • February
  • March
  • April
  • May
  • June
  • July
  • August
  • September
  • October
  • November
  • December
TemperatureMaxAverageMin
Max Temperature12.0°C (53.6°F)8.29°C (46.92°F)4.0°C (39.2°F)
Avg Temperature11.0°C (51.8°F)6.39°C (43.5°F)3.0°C (37.4°F)
Min Temperature10.0°C (50.0°F)4.13°C (39.43°F)0.0°C (0°F)
Dew PointMaxAverageMin
Dew Point9.0°C (48.2°F)3.16°C (37.69°F)-2.0°C (28.4°F)
PrecipitationMaxAverageMinSum
Precipitation38.7mm | 1.52in6.53mm | 0.26in0.0mm | 0in202.3mm | 7.96in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind17.0kmh | 10.56mph5.16kmh | 3.21mph1.0kmh | 0.62mph
Gust Wind28.0kmh | 17.4mph7.97kmh | 4.95mph2.0kmh | 1.24mph
Sea Level PressureMaxAverageMin
Sea Level Pressure38.7mb6.53mb0.0mb
Downtown Portland

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
December° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2019-12-013 | 37.4-1 | 30.27712 | 7.4629.94 | 10146.4 | 0.25
2019-12-026 | 42.81 | 33.8795 | 3.1130.12 | 10200.0 | 0.0
2019-12-036 | 42.82 | 35.6781 | 0.6230.12 | 10200.0 | 0.0
2019-12-047 | 44.65 | 41.0891 | 0.6229.91 | 10130.8 | 0.03
2019-12-058 | 46.44 | 39.2794 | 2.4929.94 | 10140.5 | 0.02
2019-12-068 | 46.44 | 39.2755 | 3.1129.85 | 10112.1 | 0.08
2019-12-078 | 46.46 | 42.8924 | 2.4929.77 | 100819.8 | 0.78
2019-12-089 | 48.26 | 42.8921 | 0.6230.03 | 10170.9 | 0.04
2019-12-099 | 48.25 | 41.0871 | 0.6230.21 | 10230.2 | 0.01
2019-12-105 | 41.03 | 37.4863 | 1.8630.15 | 102113.4 | 0.53
2019-12-118 | 46.46 | 42.8914 | 2.4929.97 | 101510.4 | 0.41
2019-12-129 | 48.27 | 44.68912 | 7.4630.0 | 101617.9 | 0.7
2019-12-137 | 44.65 | 41.0926 | 3.7330.09 | 10196.4 | 0.25
2019-12-146 | 42.84 | 39.2893 | 1.8630.03 | 10172.6 | 0.1
2019-12-154 | 39.22 | 35.6902 | 1.2430.21 | 10230.1 | 0.0
2019-12-166 | 42.81 | 33.8783 | 1.8630.33 | 10270.1 | 0.0
2019-12-175 | 41.0-2 | 28.46412 | 7.4630.15 | 10210.0 | 0.0
2019-12-184 | 39.2-1 | 30.2699 | 5.5929.88 | 10124.3 | 0.17
2019-12-198 | 46.47 | 44.6959 | 5.5929.8 | 100927.0 | 1.06
2019-12-2011 | 51.89 | 48.28817 | 10.5629.8 | 100924.4 | 0.96
2019-12-218 | 46.47 | 44.6928 | 4.9729.77 | 100838.7 | 1.52
2019-12-226 | 42.84 | 39.2883 | 1.8629.74 | 10078.7 | 0.34
2019-12-236 | 42.83 | 37.4874 | 2.4929.97 | 10155.7 | 0.22
2019-12-243 | 37.40 | 32.0823 | 1.8629.85 | 10110.0 | 0.0
2019-12-255 | 41.01 | 33.8803 | 1.8629.94 | 10140.6 | 0.02
2019-12-264 | 39.2-1 | 30.2753 | 1.8630.15 | 10210.1 | 0.0
2019-12-275 | 41.02 | 35.6874 | 2.4930.18 | 10222.0 | 0.08
2019-12-286 | 42.82 | 35.6831 | 0.6230.21 | 10230.0 | 0.0
2019-12-295 | 41.01 | 33.8764 | 2.4930.09 | 10191.4 | 0.06
2019-12-306 | 42.81 | 33.8734 | 2.4930.33 | 10270.0 | 0.0
2019-12-317 | 44.65 | 41.0889 | 5.5930.06 | 10187.8 | 0.31

Downtown Portland 3 Year Historical Weather Data

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