St. Helens, Oregon, United States Climate
Weather: 9.52°C/49.14°F, Wind SW at 2.04 km/h, 88% Humidity, 0% Chance of rain
St. Helens Climate Summary
Located at an elevation of None meters (0 feet) above sea level, St. Helens has a Mediterranean, warm summer climate (Classification: Csb). The district’s yearly temperature is 12.48ºC (54.46ºF) and it is -0.16% lower than United States’s averages. St. Helens typically receives about 37.77 millimeters (1.49 inches) of precipitation and has 42.81 rainy days (11.73% of the time) annually.
Country | United States |
City | Oregon |
Longitude | -122.8212356 |
Latitude | 45.858961 |
Attitude/Elevation | Nonem (0ft) |
Local time | Monday 05:48 |
Annual high temperature | 16.12ºC (61.02ºF) |
Annual low temperature | 5.91ºC (42.64ºF) |
Average annual precip. | 37.77mm (1.49in) |
Warmest month | August (26.65ºC / 79.97ºF) |
Coldest Month | February (0.01ºC / 32.02ºF) |
Wettest Month | January (87.45mm / 3.44in) |
Driest Month | July (4.54mm / 0.18in) |
Number of days with rainfall (≥ 1.0 mm) | 42.81 days (11.73%) |
Days with no rain | 322.19 days (88.27%) |
Humidity | 77.06% |
Climate St. Helens: Weather By Month
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Nov | Oct | Dec | Year |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Record high °C (°F) | 15.0(59.0) | 15.0(59.0) | 21.0(69.8) | 31.0(87.8) | 32.0(89.6) | 35.0(95.0) | 37.0(98.6) | 37.0(98.6) | 35.0(95.0) | 31.0(87.8) | 18.0(64.4) | 12.0(53.6) | 37.0(98.6) |
Average high °C (°F) | 8.24(46.83) | 7.18(44.92) | 11.28(52.3) | 14.56(58.21) | 20.11(68.2) | 21.59(70.86) | 26.2(79.16) | 26.65(79.97) | 22.7(72.86) | 16.28(61.3) | 10.99(51.78) | 7.62(45.72) | 16.12(61.02) |
Daily mean °C (°F) | 6.05(42.89) | 4.44(39.99) | 7.48(45.46) | 11.19(52.14) | 16.19(61.14) | 17.76(63.97) | 21.55(70.79) | 21.66(70.99) | 17.91(64.24) | 12.26(54.07) | 7.9(46.22) | 5.35(41.63) | 12.48(54.46) |
Average low °C (°F) | 2.25(36.05) | 0.01(32.02) | 1.7(35.06) | 4.44(39.99) | 7.68(45.82) | 8.67(47.61) | 11.66(52.99) | 12.24(54.03) | 10.53(50.95) | 6.31(43.36) | 3.66(38.59) | 1.78(35.2) | 5.91(42.64) |
Record low °C (°F) | -7.0(19.4) | -8.0(17.6) | -5.0(23.0) | -1.0(30.2) | 2.0(35.6) | 4.0(39.2) | 7.0(44.6) | 7.0(44.6) | 0.0(0) | -2.0(28.4) | -4.0(24.8) | -3.0(26.6) | -8.0(17.6) |
Average precipitation mm (inches) | 87.45(3.44) | 47.65(1.88) | 35.26(1.39) | 41.62(1.64) | 27.01(1.06) | 23.98(0.94) | 4.54(0.18) | 4.95(0.19) | 27.22(1.07) | 36.95(1.45) | 46.85(1.84) | 69.75(2.75) | 37.77(1.49) |
Average precipitation days (≥ 1.0 mm) | 6.27 | 4.73 | 4.09 | 4.36 | 3.09 | 2.73 | 1.18 | 1.36 | 3.0 | 3.09 | 3.91 | 5.0 | 3.57 |
Average relative humidity (%) | 86.45 | 84.76 | 77.56 | 77.23 | 73.11 | 72.01 | 67.96 | 68.08 | 73.7 | 74.44 | 81.98 | 87.4 | 77.06 |
Mean monthly sunshine hours | 5.71 | 7.38 | 9.17 | 9.09 | 12.66 | 14.58 | 14.29 | 11.44 | 10.33 | 9.06 | 6.26 | 5.58 | 9.63 |
Climate Graph
The chart below shows the mean monthly temperature and precipitation of Oregon in recent years.
St. Helens Temperature by Month
August | 21.66°C | 70.99°F | |
July | 21.55°C | 70.79°F | |
September | 17.91°C | 64.24°F | |
June | 17.76°C | 63.97°F | |
May | 16.19°C | 61.14°F | |
October | 12.26°C | 54.07°F | |
April | 11.19°C | 52.14°F | |
November | 7.9°C | 46.22°F | |
March | 7.48°C | 45.46°F | |
January | 6.05°C | 42.89°F | |
December | 5.35°C | 41.63°F | |
February | 4.44°C | 39.99°F |
Historical Data
Temperature | Max | Average | Min | |
---|---|---|---|---|
Max Temperature | 32.0°C (89.6°F) | 22.13°C (71.83°F) | 17.0°C (62.6°F) | |
Avg Temperature | 25.0°C (77.0°F) | 17.6°C (63.68°F) | 14.0°C (57.2°F) | |
Min Temperature | 15.0°C (59.0°F) | 9.87°C (49.77°F) | 6.0°C (42.8°F) | |
Dew Point | Max | Average | Min | |
Dew Point | 12.0°C (53.6°F) | 9.27°C (48.69°F) | 6.0°C (42.8°F) | |
Precipitation | Max | Average | Min | Sum |
Precipitation | 16.4mm | 0.65in | 2.12mm | 0.08in | 0.0mm | 0in | 63.7mm | 2.51in |
Snowdepth | 0.0mm | 0in | 0.0mm | 0in | 0.0mm | 0in | 0.0mm | 0in |
Wind | Max | Average | Min | |
Wind | 9.0kmh | 5.59mph | 5.6kmh | 3.48mph | 2.0kmh | 1.24mph | |
Gust Wind | 14.0kmh | 8.7mph | 8.67kmh | 5.39mph | 4.0kmh | 2.49mph | |
Sea Level Pressure | Max | Average | Min | |
Sea Level Pressure | 16.4mb | 2.12mb | 0.0mb |
Daily Observations
Time | Temperature | Dew Point | Humidity | Wind Speed | Pressure | Precipitation |
---|---|---|---|---|---|---|
September | ° C | ° F | ° C | ° F | % | Kph | Mph | Hg | Mb | Total (mm/in) |
2018-09-01 | 18 | 64.4 | 10 | 50.0 | 72 | 7 | 4.35 | 30.12 | 1020 | 0.0 | 0.0 |
2018-09-02 | 20 | 68.0 | 9 | 48.2 | 68 | 8 | 4.97 | 30.06 | 1018 | 0.0 | 0.0 |
2018-09-03 | 19 | 66.2 | 10 | 50.0 | 71 | 8 | 4.97 | 30.09 | 1019 | 0.0 | 0.0 |
2018-09-04 | 20 | 68.0 | 9 | 48.2 | 65 | 7 | 4.35 | 30.06 | 1018 | 0.0 | 0.0 |
2018-09-05 | 25 | 77.0 | 8 | 46.4 | 48 | 5 | 3.11 | 29.97 | 1015 | 0.0 | 0.0 |
2018-09-06 | 24 | 75.2 | 11 | 51.8 | 56 | 4 | 2.49 | 30.06 | 1018 | 0.0 | 0.0 |
2018-09-07 | 21 | 69.8 | 10 | 50.0 | 66 | 5 | 3.11 | 30.09 | 1019 | 0.0 | 0.0 |
2018-09-08 | 18 | 64.4 | 11 | 51.8 | 72 | 4 | 2.49 | 30.09 | 1019 | 1.3 | 0.05 |
2018-09-09 | 19 | 66.2 | 10 | 50.0 | 68 | 5 | 3.11 | 30.0 | 1016 | 0.0 | 0.0 |
2018-09-10 | 17 | 62.6 | 12 | 53.6 | 82 | 4 | 2.49 | 30.03 | 1017 | 5.7 | 0.22 |
2018-09-11 | 15 | 59.0 | 11 | 51.8 | 88 | 4 | 2.49 | 29.97 | 1015 | 6.9 | 0.27 |
2018-09-12 | 14 | 57.2 | 10 | 50.0 | 88 | 4 | 2.49 | 29.94 | 1014 | 10.4 | 0.41 |
2018-09-13 | 14 | 57.2 | 10 | 50.0 | 85 | 5 | 3.11 | 29.97 | 1015 | 4.9 | 0.19 |
2018-09-14 | 15 | 59.0 | 9 | 48.2 | 80 | 3 | 1.86 | 29.97 | 1015 | 2.5 | 0.1 |
2018-09-15 | 14 | 57.2 | 9 | 48.2 | 84 | 5 | 3.11 | 29.88 | 1012 | 7.9 | 0.31 |
2018-09-16 | 14 | 57.2 | 9 | 48.2 | 80 | 9 | 5.59 | 29.97 | 1015 | 16.4 | 0.65 |
2018-09-17 | 15 | 59.0 | 6 | 42.8 | 70 | 7 | 4.35 | 30.09 | 1019 | 0.0 | 0.0 |
2018-09-18 | 15 | 59.0 | 7 | 44.6 | 71 | 7 | 4.35 | 30.09 | 1019 | 0.0 | 0.0 |
2018-09-19 | 16 | 60.8 | 8 | 46.4 | 73 | 5 | 3.11 | 30.09 | 1019 | 0.0 | 0.0 |
2018-09-20 | 17 | 62.6 | 8 | 46.4 | 74 | 2 | 1.24 | 30.12 | 1020 | 0.0 | 0.0 |
2018-09-21 | 18 | 64.4 | 10 | 50.0 | 70 | 5 | 3.11 | 29.97 | 1015 | 0.0 | 0.0 |
2018-09-22 | 15 | 59.0 | 11 | 51.8 | 86 | 9 | 5.59 | 30.0 | 1016 | 6.4 | 0.25 |
2018-09-23 | 14 | 57.2 | 7 | 44.6 | 75 | 6 | 3.73 | 30.15 | 1021 | 0.2 | 0.01 |
2018-09-24 | 16 | 60.8 | 7 | 44.6 | 72 | 7 | 4.35 | 30.21 | 1023 | 0.0 | 0.0 |
2018-09-25 | 18 | 64.4 | 7 | 44.6 | 63 | 7 | 4.35 | 30.21 | 1023 | 0.0 | 0.0 |
2018-09-26 | 20 | 68.0 | 8 | 46.4 | 58 | 6 | 3.73 | 30.12 | 1020 | 0.0 | 0.0 |
2018-09-27 | 23 | 73.4 | 11 | 51.8 | 59 | 4 | 2.49 | 29.97 | 1015 | 0.0 | 0.0 |
2018-09-28 | 23 | 73.4 | 10 | 50.0 | 54 | 5 | 3.11 | 29.83 | 1010 | 0.0 | 0.0 |
2018-09-29 | 16 | 60.8 | 10 | 50.0 | 75 | 5 | 3.11 | 29.8 | 1009 | 0.1 | 0.0 |
2018-09-30 | 15 | 59.0 | 10 | 50.0 | 77 | 6 | 3.73 | 29.88 | 1012 | 1.0 | 0.04 |
St. Helens 3 Year Historical Weather Data
Nearby locations
- Bethany 33.71 km ( 20.94 mi)
- Northwest District 33.71 km ( 20.95 mi)
- Cully 36.70 km ( 22.80 mi)
- Beaumont - Wilshire 37.37 km ( 23.22 mi)
- Hillsboro 37.94 km ( 23.58 mi)
- Cedar Hills 38.94 km ( 24.20 mi)
- Goose Hollow 39.14 km ( 24.32 mi)
- Downtown Portland 39.94 km ( 24.82 mi)
- Buckman 40.19 km ( 24.97 mi)
- Aloha 40.69 km ( 25.28 mi)
- Argay 41.12 km ( 25.55 mi)
- Montavilla 42.22 km ( 26.23 mi)
- Hayhurst 42.53 km ( 26.43 mi)
- Hazelwood 43.06 km ( 26.75 mi)
- Brentwood - Darlington 46.46 km ( 28.87 mi)
- Lents 46.91 km ( 29.15 mi)
- Tigard 49.01 km ( 30.45 mi)
- Bull Mountain 49.28 km ( 30.62 mi)
- Oatfield 52.69 km ( 32.74 mi)
- Tualatin 53.54 km ( 33.27 mi)
- Sherwood 55.88 km ( 34.72 mi)
- Canby 67.07 km ( 41.68 mi)
- Astoria 86.33 km ( 53.64 mi)
- Hayesville 98.10 km ( 60.95 mi)
- Salem 103.18 km ( 64.11 mi)
- Four Corners 104.25 km ( 64.78 mi)
- Dallas 111.42 km ( 69.23 mi)
- Corvallis 147.96 km ( 91.94 mi)
- Eugene 201.89 km ( 125.45 mi)
- Bend 232.73 km ( 144.61 mi)
- Deschutes River Woods 237.49 km ( 147.57 mi)
- Coos Bay 298.32 km ( 185.37 mi)
- Pendleton 314.35 km ( 195.33 mi)
- Grants Pass 382.17 km ( 237.47 mi)
- Central Point 387.09 km ( 240.52 mi)
- Baker City 409.08 km ( 254.19 mi)
- Klamath Falls 412.29 km ( 256.19 mi)
- Pleasant Valley 428.02 km ( 265.96 mi)
- Brookings 438.90 km ( 272.72 mi)
- View all
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