Portland, Oregon, United States Climate

Weather: 20.43°C/68.77°F, Wind SW at 4.63 km/h, 24% Humidity, 0% Chance of rain

United States
(Photo by everett mcintire on Unsplash)
Contents

Portland Climate Summary

Located at an elevation of None meters (0 feet) above sea level, 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. 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-122.6750261
Latitude45.5051064
Attitude/ElevationNonem (0ft)
Local timeFriday 15:12
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 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 hours5.797.59.128.9812.4314.3214.1111.3510.399.286.425.539.6

Climate Graph

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

Portland

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 Temperature29.0°C (84.2°F)19.71°C (67.48°F)13.0°C (55.4°F)
Avg Temperature24.0°C (75.2°F)16.32°C (61.38°F)12.0°C (53.6°F)
Min Temperature17.0°C (62.6°F)11.58°C (52.84°F)7.0°C (44.6°F)
Dew PointMaxAverageMin
Dew Point11.0°C (51.8°F)6.77°C (44.19°F)1.0°C (33.8°F)
PrecipitationMaxAverageMinSum
Precipitation32.0mm | 1.26in5.47mm | 0.22in0.0mm | 0in169.7mm | 6.68in
Snowdepth0.0mm | 0in0.0mm | 0in0.0mm | 0in0.0mm | 0in
WindMaxAverageMin
Wind13.0kmh | 8.08mph7.74kmh | 4.81mph3.0kmh | 1.86mph
Gust Wind18.0kmh | 11.18mph10.32kmh | 6.41mph3.0kmh | 1.86mph
Sea Level PressureMaxAverageMin
Sea Level Pressure32.0mb5.47mb0.0mb
Portland

Daily Observations

TimeTemperatureDew PointHumidityWind SpeedPressurePrecipitation
May° C | ° F° C | ° F%Kph | MphHg | MbTotal (mm/in)
2020-05-0113 | 55.44 | 39.2586 | 3.7330.06 | 10180.0 | 0.0
2020-05-0212 | 53.67 | 44.67410 | 6.2129.91 | 101317.1 | 0.67
2020-05-0312 | 53.63 | 37.4618 | 4.9730.18 | 10224.4 | 0.17
2020-05-0415 | 59.03 | 37.4526 | 3.7330.18 | 10220.2 | 0.01
2020-05-0518 | 64.45 | 41.0505 | 3.1130.15 | 10210.5 | 0.02
2020-05-0614 | 57.23 | 37.45513 | 8.0830.33 | 10275.2 | 0.2
2020-05-0716 | 60.81 | 33.84710 | 6.2130.27 | 10250.0 | 0.0
2020-05-0821 | 69.85 | 41.04113 | 8.0830.06 | 10180.0 | 0.0
2020-05-0923 | 73.47 | 44.6419 | 5.5929.97 | 10150.0 | 0.0
2020-05-1024 | 75.29 | 48.2468 | 4.9729.83 | 10101.7 | 0.07
2020-05-1116 | 60.811 | 51.8706 | 3.7329.74 | 100715.5 | 0.61
2020-05-1215 | 59.09 | 48.27012 | 7.4629.71 | 10062.6 | 0.1
2020-05-1312 | 53.67 | 44.6768 | 4.9729.91 | 10136.7 | 0.26
2020-05-1414 | 57.28 | 46.4759 | 5.5930.0 | 101614.5 | 0.57
2020-05-1517 | 62.65 | 41.0575 | 3.1130.06 | 10181.4 | 0.06
2020-05-1614 | 57.27 | 44.6624 | 2.4929.83 | 10101.9 | 0.07
2020-05-1717 | 62.69 | 48.2687 | 4.3529.71 | 100623.3 | 0.92
2020-05-1815 | 59.09 | 48.2697 | 4.3529.8 | 10098.8 | 0.35
2020-05-1915 | 59.09 | 48.2705 | 3.1130.0 | 10161.9 | 0.07
2020-05-2012 | 53.68 | 46.47610 | 6.2130.06 | 10181.9 | 0.07
2020-05-2112 | 53.65 | 41.0659 | 5.5930.06 | 10187.7 | 0.3
2020-05-2212 | 53.65 | 41.0669 | 5.5930.06 | 10184.1 | 0.16
2020-05-2316 | 60.85 | 41.0564 | 2.4930.15 | 10210.1 | 0.0
2020-05-2419 | 66.27 | 44.6523 | 1.8630.12 | 10200.0 | 0.0
2020-05-2516 | 60.810 | 50.0673 | 1.8630.06 | 10180.0 | 0.0
2020-05-2620 | 68.011 | 51.8655 | 3.1130.06 | 10180.2 | 0.01
2020-05-2720 | 68.06 | 42.8477 | 4.3530.09 | 10190.0 | 0.0
2020-05-2823 | 73.48 | 46.4428 | 4.9730.0 | 10160.0 | 0.0
2020-05-2923 | 73.410 | 50.0479 | 5.5929.91 | 10130.0 | 0.0
2020-05-3014 | 57.29 | 48.27112 | 7.4629.8 | 100932.0 | 1.26
2020-05-3116 | 60.85 | 41.05810 | 6.2130.03 | 101718.0 | 0.71

Portland 3 Year Historical Weather Data

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