Powers, Oregon climate: Normal weather by month, frost dates and records
Powers's normal year runs from 37°F December nights to 80°F August afternoons, with 58.6 inches of precipitation and less than an inch of snow (0.6 in) a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.7°C, December lows of 3°C, August highs of 27°C, 1,489 mm of precipitation a year.
- NOAA stationPowers
- Station IDUSC00356820
- Location42.89°N 124.07°W
- Elevation230 ft (70 m)
- Population703
On October 23, the normal high in Powers is 67°F and the normal low 43°F, and the chance of measurable rain or snow is 39%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Powers.
- Jan 54° 37°
- Feb 57° 38°
- Mar 59° 39°
- Apr 63° 41°
- May 68° 46°
- Jun 73° 50°
- Jul 79° 53°
- Aug 80° 52°
- Sep 79° 49°
- Oct 70° 43°
- Nov 58° 41°
- Dec 52° 37°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Powers each month?
August is the warmest month, with normal highs of 80°F; December the coldest, with normal lows of 37°F. The most precipitation falls in December (10.82 in), the least in July (0.29 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 54°F | 37°F | 45.6°F | 9.37 | 17 | <1 | 10 | 9 h 20 min |
| February | 57°F | 38°F | 47.1°F | 7.49 | 15 | <1 | 7 | 10 h 30 min |
| March | 59°F | 39°F | 49.3°F | 7.88 | 18 | <1 | 5 | 11 h 50 min |
| April | 63°F | 41°F | 52.0°F | 5.42 | 15 | <1 | 1 | 13 h 20 min |
| May | 68°F | 46°F | 56.9°F | 2.90 | 12 | 1 | <1 | 14 h 40 min |
| June | 73°F | 50°F | 61.3°F | 1.31 | 7 | 1 | <1 | 15 h 20 min |
| July | 79°F | 53°F | 65.8°F | 0.29 | 2 | 2 | <1 | 15 h |
| August | 80°F | 52°F | 66.4°F | 0.32 | 2 | 3 | <1 | 14 h |
| September | 79°F | 49°F | 64.0°F | 1.13 | 5 | 4 | <1 | 12 h 30 min |
| October | 70°F | 43°F | 56.7°F | 3.76 | 11 | 1 | 1 | 11 h 10 min |
| November | 58°F | 41°F | 49.1°F | 7.93 | 17 | <1 | 6 | 9 h 50 min |
| December | 52°F | 37°F | 44.1°F | 10.82 | 18 | <1 | 11 | 9 h |
| Year (annual) | 66°F | 44°F | 54.9°F | 58.62 | 138 | 11 | 40 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 12°C | 3°C | 7.6°C | 238 mm |
| February | 14°C | 3°C | 8.4°C | 190 mm |
| March | 15°C | 4°C | 9.6°C | 200 mm |
| April | 17°C | 5°C | 11.1°C | 138 mm |
| May | 20°C | 8°C | 13.8°C | 74 mm |
| June | 23°C | 10°C | 16.3°C | 33 mm |
| July | 26°C | 12°C | 18.8°C | 7 mm |
| August | 27°C | 11°C | 19.1°C | 8 mm |
| September | 26°C | 9°C | 17.8°C | 29 mm |
| October | 21°C | 6°C | 13.7°C | 96 mm |
| November | 14°C | 5°C | 9.5°C | 201 mm |
| December | 11°C | 3°C | 6.7°C | 275 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00356820; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Powers?
Normal highs sit between 65°F and 85°F in May, June, July, August, September and October. Of those, July has the fewest days with rain (2).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00356820.
When is the last frost in Powers?
In Powers, the last spring frost (32°F) comes after March 21 in half of years and after April 12 in one year in ten; the first autumn frost comes before November 14 in half of years and before October 21 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- March 211 year in 10 after April 12; 9 in 10 after February 16
- First autumn frost, half of years before
- November 141 year in 10 before October 21; 9 in 10 before December 14
NOAA puts the median frost-free season at 241 days, and the season without a hard freeze (28°F) at 310 days.
A hard freeze (28°F) comes after February 6 in half of springs and before December 9 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Powers in zone 9a in ZIP code 97466, the nearest ZIP area.
Frost dates for every NOAA station in Oregon · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00356820; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Powers?
In a normal year in Powers, 11 days a year reach 90°F (1 of them 100°F or more), 40 nights fall to 32°F or colder and 138 days bring measurable precipitation.
- Days at 90°F or more
- 11a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 40a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 138a normal year
The highest temperature in this station's record (since 1932) is 105°F, on August 4, 1932; the lowest is 5°F, on December 21, 1990.
The wettest calendar year on that record is 1996, with 95.35 in; the snowiest season is 1949–50, with 18.9 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00356820; records: ACIS (NOAA Regional Climate Centers), station USC00356820. Records use complete months only; a month missing more than three days is left out.
How sunny is Powers?
Over a year 76% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Powers, 4.2 kWh per square metre a day. July is the sunniest month (87%) and December the cloudiest (60%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 63% | 1.7 |
| February | 65% | 2.5 |
| March | 66% | 3.6 |
| April | 71% | 5.0 |
| May | 77% | 6.3 |
| June | 81% | 7.0 |
| July | 87% | 7.3 |
| August | 85% | 6.2 |
| September | 82% | 4.8 |
| October | 75% | 3.2 |
| November | 65% | 1.9 |
| December | 60% | 1.4 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Powers need?
A normal year in Powers brings 3,883 heating degree days, 28% fewer than the median U.S. place (5,373), and 199 cooling degree days, 78% fewer than the median (908). Six months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,467 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 600 | 0 |
| February | 501 | 0 |
| March | 488 | 0 |
| April | 392 | 1 |
| May | 254 | 5 |
| June | 127 | 16 |
| July | 32 | 57 |
| August | 26 | 70 |
| September | 75 | 45 |
| October | 263 | 6 |
| November | 476 | 0 |
| December | 648 | 0 |
| Year (annual) | 3,883 | 199 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00356820. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
How does Powers's climate compare?
Powers is warmer than 94 of the other 104 places with their own NOAA record in Oregon, and wetter than 76. Across the 7,247 U.S. stations with normals, its annual mean of 54.9°F is warmer than 60%.
In the Köppen classification computed from these normals, Powers is Csb: temperate, dry-summer, warm summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Questions about Powers's climate
What is the coldest month in Powers?
December, with a normal high of 52°F and a normal low of 37°F. The warmest is August (80°F by day, 52°F at night).
Does it snow in Powers?
Rarely: NOAA's normal is 0.6 inch a year.
What is the rainiest month in Powers?
December, with 10.82 in of precipitation in a normal year; the driest is July with 0.29 in.
What plant hardiness zone is Powers in?
The USDA's 2023 map puts Powers in zone 9a in ZIP code 97466, the nearest ZIP area.
How late can frost come in Powers?
In half of years the last 32°F night comes after March 21; in one year in ten it comes after April 12. Waiting until April 12 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Oregon climateThe statewide normals and every place in the state
- Illahe, OR18 miles from this station, 55.9°F a year
- Langlois, OR20 miles from this station, 52.9°F a year
- Coquille, OR22 miles from this station, 53.2°F a year
- Port Orford, OR24 miles from this station, 53.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made