Drain, Oregon climate: Normal weather by month, frost dates and records
Drain's normal year runs from 35°F December nights to 86°F August afternoons, with 47.6 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.3°C, December lows of 2°C, August highs of 30°C, 1,209 mm of precipitation a year.
- NOAA stationDrain
- Station IDUSC00352406
- Location43.66°N 123.33°W
- Elevation292 ft (89 m)
- Population1,198
On October 23, the normal high in Drain is 64°F and the normal low 41°F, and the chance of measurable rain or snow is 48%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Drain.
- Jan 51° 35°
- Feb 55° 35°
- Mar 59° 37°
- Apr 64° 39°
- May 71° 44°
- Jun 76° 48°
- Jul 85° 52°
- Aug 86° 51°
- Sep 80° 46°
- Oct 68° 42°
- Nov 55° 39°
- Dec 49° 35°
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 Drain each month?
August is the warmest month, with normal highs of 86°F; December the coldest, with normal lows of 35°F. The most precipitation falls in December (8.54 in), the least in July (0.33 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 51°F | 35°F | 42.6°F | 7.31 | 20 | <1 | 9 | 9 h 20 min |
| February | 55°F | 35°F | 44.8°F | 5.49 | 17 | <1 | 8 | 10 h 30 min |
| March | 59°F | 37°F | 47.8°F | 5.44 | 19 | <1 | 6 | 11 h 50 min |
| April | 64°F | 39°F | 51.5°F | 4.25 | 17 | <1 | 2 | 13 h 20 min |
| May | 71°F | 44°F | 57.2°F | 2.69 | 12 | 1 | <1 | 14 h 40 min |
| June | 76°F | 48°F | 62.0°F | 1.24 | 8 | 2 | <1 | 15 h 30 min |
| July | 85°F | 52°F | 68.1°F | 0.33 | 2 | 9 | <1 | 15 h 10 min |
| August | 86°F | 51°F | 68.2°F | 0.42 | 3 | 10 | <1 | 14 h |
| September | 80°F | 46°F | 63.3°F | 1.42 | 6 | 5 | <1 | 12 h 30 min |
| October | 68°F | 42°F | 54.8°F | 3.51 | 13 | <1 | 2 | 11 h 10 min |
| November | 55°F | 39°F | 46.9°F | 6.96 | 20 | <1 | 5 | 9 h 40 min |
| December | 49°F | 35°F | 41.8°F | 8.54 | 20 | <1 | 9 | 9 h |
| Year (annual) | 66°F | 42°F | 54.1°F | 47.60 | 158 | 26 | 41 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 10°C | 2°C | 5.9°C | 186 mm |
| February | 13°C | 2°C | 7.1°C | 139 mm |
| March | 15°C | 3°C | 8.8°C | 138 mm |
| April | 18°C | 4°C | 10.8°C | 108 mm |
| May | 22°C | 7°C | 14.0°C | 68 mm |
| June | 24°C | 9°C | 16.7°C | 31 mm |
| July | 29°C | 11°C | 20.1°C | 8 mm |
| August | 30°C | 10°C | 20.1°C | 11 mm |
| September | 27°C | 8°C | 17.4°C | 36 mm |
| October | 20°C | 5°C | 12.7°C | 89 mm |
| November | 13°C | 4°C | 8.3°C | 177 mm |
| December | 9°C | 2°C | 5.4°C | 217 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00352406; 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 Drain?
Normal highs sit between 65°F and 85°F in May, June, July, 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 USC00352406.
When is the last frost in Drain?
In Drain, the last spring frost (32°F) comes after April 16 in half of years and after May 8 in one year in ten; the first autumn frost comes before October 25 in half of years and before October 2 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 161 year in 10 after May 8; 9 in 10 after March 23
- First autumn frost, half of years before
- October 251 year in 10 before October 2; 9 in 10 before November 25
NOAA puts the median frost-free season at 193 days, and the season without a hard freeze (28°F) at 258 days.
A hard freeze (28°F) comes after March 10 in half of springs and before November 21 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Drain in zone 8b in ZIP code 97435, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Drain's NOAA station is in zone 8b: the coldest night of a typical year reaches 19°F (26 complete years).
Frost dates for every NOAA station in Oregon · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00352406; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. 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 Drain?
In a normal year in Drain, 26 days a year reach 90°F (2 of them 100°F or more), 41 nights fall to 32°F or colder and 158 days bring measurable precipitation.
- Days at 90°F or more
- 26a normal year
- Days at 100°F or more
- 2a normal year
- Nights at 32°F or colder
- 41a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 158a normal year
The highest temperature in this station's record (since 1902) is 112°F, on June 28, 2021; the lowest is 0°F, on January 22, 1962.
The wettest calendar year on that record is 1996, with 78.38 in; the snowiest season is 1970–71, with 23.2 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00352406; records: ACIS (NOAA Regional Climate Centers), station USC00352406. Records use complete months only; a month missing more than three days is left out.
How sunny is Drain?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Drain, 4.0 kWh per square metre a day. July is the sunniest month (88%) and December the cloudiest (55%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 59% | 1.5 |
| February | 62% | 2.3 |
| March | 63% | 3.4 |
| April | 67% | 4.7 |
| May | 72% | 5.9 |
| June | 76% | 6.6 |
| July | 88% | 7.3 |
| August | 88% | 6.3 |
| September | 83% | 4.8 |
| October | 72% | 3.0 |
| November | 60% | 1.6 |
| December | 55% | 1.2 |
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 Drain need?
A normal year in Drain brings 4,300 heating degree days, 20% fewer than the median U.S. place (5,373), and 339 cooling degree days, 63% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,472 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 693 | 0 |
| February | 566 | 0 |
| March | 535 | 0 |
| April | 406 | 1 |
| May | 252 | 11 |
| June | 123 | 33 |
| July | 25 | 122 |
| August | 24 | 123 |
| September | 97 | 45 |
| October | 321 | 3 |
| November | 542 | 0 |
| December | 718 | 0 |
| Year (annual) | 4,300 | 339 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00352406. 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.
Has Drain been warmer than normal lately?
2025 averaged 56.2°F, 2.1°F above the 1991-2020 normal of 54.1°F. 2 of the 2 complete years since 2024 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2024 | 55.5°F | +1.4°F | 53.54 |
| 2025 | 56.2°F | +2.1°F | 38.05 |
Over 99 complete years from 1904 to 2025, the station's annual mean temperature rose at a fitted 2.9°F per century (+0.16°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00352406; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Drain's climate compare?
Drain is warmer than 88 of the other 104 places with their own NOAA record in Oregon, and wetter than 66. Across the 7,247 U.S. stations with normals, its annual mean of 54.1°F is warmer than 57%.
In the Köppen classification computed from these normals, Drain 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.
Which places near Drain share this climate record?
Yoncalla has no NOAA station with 1991-2020 normals of its own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Yoncalla, OR1,033 people · 4 mi S
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Drain's climate
What is the coldest month in Drain?
December, with a normal high of 49°F and a normal low of 35°F. The warmest is August (86°F by day, 51°F at night).
Does it snow in Drain?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month in Drain?
December, with 8.54 in of precipitation in a normal year; the driest is July with 0.33 in.
What plant hardiness zone is Drain in?
The USDA's 2023 map puts Drain in zone 8b in ZIP code 97435, the nearest ZIP area. By the same method at Drain's NOAA station, the coldest night of a typical year reaches 19°F (26 years, 1991-2020): zone 8b.
How late can frost come in Drain?
In half of years the last 32°F night comes after April 16; in one year in ten it comes after May 8. Waiting until May 8 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Oregon climateThe statewide normals and every place in the state
- Elkton, OR13 miles from this station, 54.4°F a year
- Cottage Grove, OR17 miles from this station, 52.3°F a year
- Dorena, OR20 miles from this station, 52.0°F a year
- Winchester, OR26 miles from this station, 54.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made