Scotts Mills, Oregon climate: Normal weather by month, frost dates and records
Scotts Mills's normal year runs from 33°F December nights to 75°F August afternoons. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.3°C, December lows of 0°C, August highs of 24°C.
- NOAA stationScotts Mills (9 mi SE)
- Station IDUSC00357631
- Location44.95°N 122.52°W
- Elevation2,315 ft (706 m)
- Population417
On October 23, the normal high in Scotts Mills is 53°F and the normal low 40°F.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Scotts Mills.
- Jan 44° 33°
- Feb 46° 33°
- Mar 49° 34°
- Apr 54° 36°
- May 61° 41°
- Jun 66° 45°
- Jul 75° 50°
- Aug 75° 51°
- Sep 70° 49°
- Oct 56° 42°
- Nov 48° 36°
- Dec 42° 33°
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 Scotts Mills each month?
August is the warmest month, with normal highs of 75°F; December the coldest, with normal lows of 33°F.
| Month | High | Low | Mean | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|
| January | 44°F | 33°F | 38.7°F | – | <1 | 15 | 9 h 10 min |
| February | 46°F | 33°F | 39.5°F | – | <1 | 12 | 10 h 20 min |
| March | 49°F | 34°F | 41.6°F | – | <1 | 13 | 11 h 50 min |
| April | 54°F | 36°F | 45.0°F | – | <1 | 8 | 13 h 30 min |
| May | 61°F | 41°F | 50.9°F | – | <1 | 2 | 14 h 50 min |
| June | 66°F | 45°F | 55.5°F | – | <1 | <1 | 15 h 30 min |
| July | 75°F | 50°F | 62.4°F | – | 1 | <1 | 15 h 20 min |
| August | 75°F | 51°F | 62.9°F | – | 1 | <1 | 14 h 10 min |
| September | 70°F | 49°F | 59.3°F | – | <1 | <1 | 12 h 40 min |
| October | 56°F | 42°F | 48.9°F | – | <1 | 2 | 11 h |
| November | 48°F | 36°F | 41.9°F | – | <1 | 9 | 9 h 40 min |
| December | 42°F | 33°F | 37.5°F | – | <1 | 15 | 8 h 50 min |
| Year (annual) | 57°F | 40°F | 48.7°F | – | 2 | 75 |
The same normals in °C and millimetres
| Month | High | Low | Mean |
|---|---|---|---|
| January | 7°C | 1°C | 3.7°C |
| February | 8°C | 1°C | 4.2°C |
| March | 10°C | 1°C | 5.3°C |
| April | 12°C | 2°C | 7.2°C |
| May | 16°C | 5°C | 10.5°C |
| June | 19°C | 7°C | 13.1°C |
| July | 24°C | 10°C | 16.9°C |
| August | 24°C | 10°C | 17.2°C |
| September | 21°C | 9°C | 15.2°C |
| October | 13°C | 5°C | 9.4°C |
| November | 9°C | 2°C | 5.5°C |
| December | 6°C | 0°C | 3.1°C |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Silverton (13 miles away), gets 1 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00357631; 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 Scotts Mills?
Normal highs sit between 65°F and 85°F in June, July, August and September.
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 USC00357631.
When is the last frost in Scotts Mills?
In Scotts Mills, the last spring frost (32°F) comes after April 27 in half of years and after May 17 in one year in ten; the first autumn frost comes before November 4 in half of years and before October 18 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
- April 271 year in 10 after May 17; 9 in 10 after April 4
- First autumn frost, half of years before
- November 41 year in 10 before October 18; 9 in 10 before November 23
NOAA puts the median frost-free season at 190 days, and the season without a hard freeze (28°F) at 245 days.
A hard freeze (28°F) comes after March 25 in half of springs and before November 24 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Scotts Mills in zone 8b in ZIP code 97362, 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 USC00357631; 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 Scotts Mills?
In a normal year in Scotts Mills, 2 days a year reach 90°F and 75 nights fall to 32°F or colder.
- Days at 90°F or more
- 2a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 75a normal year
- Days that stay below freezing
- 3high of 32°F or less
The highest temperature in this station's record (since 1956) is 99°F, on August 11, 1992; the lowest is −6°F, on December 21, 1990.
The wettest calendar year on that record is 1996, with 123.95 in; the snowiest season is 1968–69, with 191.4 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00357631; records: ACIS (NOAA Regional Climate Centers), station USC00357631. Records use complete months only; a month missing more than three days is left out.
How sunny is Scotts Mills?
Over a year 73% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Scotts Mills, 3.9 kWh per square metre a day. July is the sunniest month (89%) and December the cloudiest (53%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 56% | 1.3 |
| February | 61% | 2.2 |
| March | 59% | 3.1 |
| April | 64% | 4.5 |
| May | 70% | 5.7 |
| June | 74% | 6.4 |
| July | 89% | 7.4 |
| August | 88% | 6.3 |
| September | 81% | 4.6 |
| October | 70% | 2.8 |
| November | 58% | 1.5 |
| December | 53% | 1.1 |
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 Scotts Mills need?
A normal year in Scotts Mills brings 6,067 heating degree days, 13% more than the median U.S. place (5,373), and 127 cooling degree days, 86% fewer than the median (908). Eight months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,474 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 815 | 0 |
| February | 714 | 0 |
| March | 725 | 0 |
| April | 602 | 0 |
| May | 440 | 3 |
| June | 294 | 8 |
| July | 125 | 44 |
| August | 110 | 44 |
| September | 196 | 25 |
| October | 501 | 3 |
| November | 693 | 0 |
| December | 852 | 0 |
| Year (annual) | 6,067 | 127 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00357631. 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 Scotts Mills's climate compare?
Scotts Mills is warmer than 23 of the other 104 places with their own NOAA record in Oregon. Across the 7,247 U.S. stations with normals, its annual mean of 48.7°F is warmer than 35%.
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers.
Questions about Scotts Mills's climate
What is the coldest month in Scotts Mills?
December, with a normal high of 42°F and a normal low of 33°F. The warmest is August (75°F by day, 51°F at night).
Does it snow in Scotts Mills?
Yes. NOAA publishes no 1991-2020 snowfall normal for Scotts Mills's NOAA station; the nearest record that keeps one, Silverton (13 miles away), records 1 inches of snow in a normal year.
What plant hardiness zone is Scotts Mills in?
The USDA's 2023 map puts Scotts Mills in zone 8b in ZIP code 97362, the nearest ZIP area.
How late can frost come in Scotts Mills?
In half of years the last 32°F night comes after April 27; in one year in ten it comes after May 17. Waiting until May 17 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Oregon climateThe statewide normals and every place in the state
- Silver Creek Falls, OR8 miles from this station, 48.8°F a year
- Silverton, OR13 miles from this station, 53.0°F a year
- Molalla, OR16 miles from this station, 53.8°F a year
- Stayton, OR18 miles from this station, 52.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made