Three Lynx, Oregon climate: Climate normals at a NOAA weather station
Three Lynx's normal year runs from 33°F December nights to 79°F August afternoons, with 69.0 inches of precipitation and 5 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.1°C, December lows of 0°C, August highs of 26°C, 1,751 mm of precipitation a year.
- NOAA stationThree Lynx
- Station IDUSC00358466
- Location45.12°N 122.07°W
- Elevation1,120 ft (341 m)
On October 22, the normal high in Three Lynx is 56°F and the normal low 41°F, and the chance of measurable rain or snow is 51%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Three Lynx.
- Jan 41° 33°
- Feb 46° 33°
- Mar 51° 35°
- Apr 57° 39°
- May 64° 44°
- Jun 69° 49°
- Jul 78° 53°
- Aug 79° 52°
- Sep 73° 48°
- Oct 59° 42°
- Nov 47° 37°
- Dec 41° 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 at Three Lynx each month?
August is the warmest month, with normal highs of 79°F; December the coldest, with normal lows of 33°F. The most precipitation falls in December (11.30 in), the least in July (0.61 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 41°F | 33°F | 36.9°F | 9.26 | 3.1 | 20 | <1 | 17 | 9 h 10 min |
| February | 46°F | 33°F | 39.3°F | 7.09 | 0.2 | 18 | <1 | 14 | 10 h 20 min |
| March | 51°F | 35°F | 43.1°F | 7.98 | 0.5 | 21 | <1 | 10 | 11 h 50 min |
| April | 57°F | 39°F | 47.9°F | 6.21 | 0.0 | 19 | <1 | 3 | 13 h 30 min |
| May | 64°F | 44°F | 54.2°F | 4.41 | 0.0 | 16 | <1 | <1 | 14 h 50 min |
| June | 69°F | 49°F | 58.9°F | 3.01 | 0.0 | 12 | 1 | <1 | 15 h 40 min |
| July | 78°F | 53°F | 65.2°F | 0.61 | 0.0 | 4 | 3 | <1 | 15 h 20 min |
| August | 79°F | 52°F | 65.5°F | 0.70 | 0.0 | 4 | 3 | <1 | 14 h 10 min |
| September | 73°F | 48°F | 60.6°F | 2.11 | 0.0 | 7 | 1 | <1 | 12 h 40 min |
| October | 59°F | 42°F | 50.7°F | 6.22 | 0.0 | 15 | <1 | 2 | 11 h |
| November | 47°F | 37°F | 42.1°F | 10.05 | 0.4 | 20 | <1 | 9 | 9 h 40 min |
| December | 41°F | 33°F | 36.6°F | 11.30 | 0.8 | 22 | <1 | 17 | 8 h 50 min |
| Year (annual) | 59°F | 41°F | 50.1°F | 68.95 | 5.0 | 176 | 9 | 73 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 5°C | 0°C | 2.7°C | 235 mm | 8 cm |
| February | 8°C | 1°C | 4.1°C | 180 mm | 1 cm |
| March | 11°C | 2°C | 6.2°C | 203 mm | 1 cm |
| April | 14°C | 4°C | 8.8°C | 158 mm | 0 cm |
| May | 18°C | 7°C | 12.3°C | 112 mm | 0 cm |
| June | 21°C | 9°C | 14.9°C | 76 mm | 0 cm |
| July | 26°C | 11°C | 18.4°C | 15 mm | 0 cm |
| August | 26°C | 11°C | 18.6°C | 18 mm | 0 cm |
| September | 23°C | 9°C | 15.9°C | 54 mm | 0 cm |
| October | 15°C | 6°C | 10.4°C | 158 mm | 0 cm |
| November | 9°C | 3°C | 5.6°C | 255 mm | 1 cm |
| December | 5°C | 0°C | 2.6°C | 287 mm | 2 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00358466; 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.
Which months are mildest at Three Lynx?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, August has the fewest days with rain (4).
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 USC00358466.
When is the last frost at Three Lynx?
In Three Lynx, the last spring frost (32°F) comes after April 5 in half of years and after April 30 in one year in ten; the first autumn frost comes before November 8 in half of years and before October 20 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 51 year in 10 after April 30; 9 in 10 after March 13
- First autumn frost, half of years before
- November 81 year in 10 before October 20; 9 in 10 before December 1
NOAA puts the median frost-free season at 217 days, and the season without a hard freeze (28°F) at 282 days.
A hard freeze (28°F) comes after February 26 in half of springs and before November 30 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Three Lynx in zone 8a in ZIP code 97023, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 8b: the coldest night of a typical year reaches 17°F (24 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Oregon · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00358466; 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 at Three Lynx?
In a normal year in Three Lynx, 9 days a year reach 90°F (1 of them 100°F or more), 73 nights fall to 32°F or colder and 176 days bring measurable precipitation.
- Days at 90°F or more
- 9a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 73a normal year
- Days that stay below freezing
- 5high of 32°F or less
- Days with 0.01 inch of precipitation
- 176a normal year
- Days with 1 inch of snow or more
- 2a normal year
The highest temperature in this station's record (since 1925) is 113°F, on June 29, 2021; the lowest is 3°F, on January 27, 1957.
The wettest calendar year on that record is 1953, with 93.59 in; the snowiest season is 1949–50, with 109.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00358466; records: ACIS (NOAA Regional Climate Centers), station USC00358466. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Three Lynx?
Over a year 70% of the sunlight that would reach the ground under clear skies gets through the clouds at Three Lynx, 3.7 kWh per square metre a day. July is the sunniest month (83%) and December the cloudiest (52%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 54% | 1.2 |
| February | 60% | 2.1 |
| March | 59% | 3.0 |
| April | 63% | 4.3 |
| May | 68% | 5.4 |
| June | 70% | 6.0 |
| July | 83% | 6.8 |
| August | 83% | 5.8 |
| September | 78% | 4.3 |
| October | 67% | 2.6 |
| November | 56% | 1.4 |
| December | 52% | 1.0 |
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 many heating and cooling degree days does Three Lynx record?
A normal year at Three Lynx brings 5,625 heating degree days, 5% more than the median U.S. place (5,373), and 201 cooling degree days, 78% 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 1,841 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 871 | 0 |
| February | 720 | 0 |
| March | 679 | 0 |
| April | 513 | 0 |
| May | 342 | 5 |
| June | 204 | 19 |
| July | 64 | 72 |
| August | 59 | 76 |
| September | 160 | 27 |
| October | 444 | 1 |
| November | 687 | 0 |
| December | 882 | 0 |
| Year (annual) | 5,625 | 201 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00358466. 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.
Have recent years at Three Lynx been warmer than normal?
2025 averaged 51.7°F, 1.6°F above the 1991-2020 normal of 50.1°F. 2 of the 2 complete years since 2023 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2023 | 52.1°F | +2.0°F | 47.23 | 0.0 |
| 2025 | 51.7°F | +1.6°F | 56.94 | – |
Over 82 complete years from 1928 to 2025, the station's annual mean temperature rose at a fitted 1.0°F per century (+0.06°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00358466; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Three Lynx's climate compare?
Three Lynx is warmer than 35 of the 105 places with their own NOAA record in Oregon, and wetter than 82. Across the 7,247 U.S. stations with normals, its annual mean of 50.1°F is warmer than 40%.
In the Köppen classification computed from these normals, Three Lynx 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 Three Lynx's climate
What is the coldest month at Three Lynx?
December, with a normal high of 41°F and a normal low of 33°F. The warmest is August (79°F by day, 52°F at night).
Does it snow at Three Lynx?
Yes: 5 inches in a normal year, falling on 2 days with 0.1 inch or more, the most in January (3.1 inches).
What is the rainiest month at Three Lynx?
December, with 11.30 in of precipitation in a normal year; the driest is July with 0.61 in.
What plant hardiness zone is Three Lynx in?
The USDA's 2023 map puts Three Lynx in zone 8a in ZIP code 97023, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 17°F (24 years, 1991-2020): zone 8b.
How late can frost come at Three Lynx?
In half of years the last 32°F night comes after April 5; in one year in ten it comes after April 30. Waiting until April 30 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Oregon climateThe statewide normals and every place in the state
- Estacada, OR16 miles from this station, 54.0°F a year
- Government Camp, OR20 miles from this station, 42.9°F a year
- Molalla, OR22 miles from this station, 53.8°F a year
- Headworks Portland Water B, OR23 miles from this station, 51.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made