Cave Junction, Oregon climate: Normal weather by month, frost dates and records
Cave Junction's normal year runs from 33°F December nights to 94°F July afternoons, with 61.2 inches of precipitation and 7 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 12.7°C, December lows of 0°C, July highs of 35°C, 1,554 mm of precipitation a year.
- NOAA stationCave Junction (1 mi WNW)
- Station IDUSC00351448
- Location42.16°N 123.64°W
- Elevation1,377 ft (420 m)
- Population2,092
On October 23, the normal high in Cave Junction is 67°F and the normal low 38°F, and the chance of measurable rain or snow is 30%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Cave Junction.
- Jan 49° 33°
- Feb 55° 33°
- Mar 60° 34°
- Apr 67° 37°
- May 76° 42°
- Jun 84° 47°
- Jul 94° 52°
- Aug 94° 49°
- Sep 87° 44°
- Oct 72° 39°
- Nov 55° 36°
- Dec 47° 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 Cave Junction each month?
July is the warmest month, with normal highs of 94°F; December the coldest, with normal lows of 33°F. The most precipitation falls in December (12.95 in), the least in July (0.25 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 49°F | 33°F | 40.7°F | 11.36 | 2.1 | 17 | <1 | 16 | 9 h 30 min |
| February | 55°F | 33°F | 44.0°F | 8.47 | 1.2 | 14 | <1 | 12 | 10 h 30 min |
| March | 60°F | 34°F | 47.3°F | 8.58 | 1.5 | 16 | <1 | 11 | 11 h 50 min |
| April | 67°F | 37°F | 51.6°F | 4.11 | 0.2 | 13 | <1 | 6 | 13 h 20 min |
| May | 76°F | 42°F | 58.9°F | 2.09 | 0.0 | 8 | 3 | 1 | 14 h 30 min |
| June | 84°F | 47°F | 65.0°F | 0.82 | 0.0 | 4 | 9 | <1 | 15 h 10 min |
| July | 94°F | 52°F | 73.1°F | 0.25 | 0.0 | 1 | 22 | <1 | 15 h |
| August | 94°F | 49°F | 71.6°F | 0.28 | 0.0 | 1 | 22 | <1 | 14 h |
| September | 87°F | 44°F | 65.7°F | 0.83 | 0.0 | 3 | 14 | <1 | 12 h 30 min |
| October | 72°F | 39°F | 55.3°F | 3.49 | 0.0 | 7 | 2 | 5 | 11 h 10 min |
| November | 55°F | 36°F | 45.5°F | 7.96 | 0.2 | 16 | <1 | 8 | 9 h 50 min |
| December | 47°F | 33°F | 39.9°F | 12.95 | 1.9 | 19 | <1 | 16 | 9 h 10 min |
| Year (annual) | 70°F | 40°F | 54.9°F | 61.19 | 7.1 | 119 | 73 | 75 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 9°C | 0°C | 4.8°C | 289 mm | 5 cm |
| February | 13°C | 1°C | 6.7°C | 215 mm | 3 cm |
| March | 16°C | 1°C | 8.5°C | 218 mm | 4 cm |
| April | 19°C | 3°C | 10.9°C | 104 mm | 1 cm |
| May | 24°C | 6°C | 14.9°C | 53 mm | 0 cm |
| June | 29°C | 8°C | 18.3°C | 21 mm | 0 cm |
| July | 35°C | 11°C | 22.8°C | 6 mm | 0 cm |
| August | 34°C | 10°C | 22.0°C | 7 mm | 0 cm |
| September | 31°C | 7°C | 18.7°C | 21 mm | 0 cm |
| October | 22°C | 4°C | 12.9°C | 89 mm | 0 cm |
| November | 13°C | 2°C | 7.5°C | 202 mm | 1 cm |
| December | 8°C | 0°C | 4.4°C | 329 mm | 5 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00351448; 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 Cave Junction?
Normal highs sit between 65°F and 85°F in April, May, June and October. Of those, June 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 USC00351448.
When is the last frost in Cave Junction?
In Cave Junction, the last spring frost (32°F) comes after May 1 in half of years and after May 23 in one year in ten; the first autumn frost comes before October 12 in half of years and before September 23 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
- May 11 year in 10 after May 23; 9 in 10 after April 14
- First autumn frost, half of years before
- October 121 year in 10 before September 23; 9 in 10 before November 2
NOAA puts the median frost-free season at 161 days, and the season without a hard freeze (28°F) at 210 days.
A hard freeze (28°F) comes after April 4 in half of springs and before November 2 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Cave Junction in zone 8b in ZIP code 97531, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Cave Junction's NOAA station is in zone 8b: the coldest night of a typical year reaches 18°F (23 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 USC00351448; 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 Cave Junction?
In a normal year in Cave Junction, 73 days a year reach 90°F (19 of them 100°F or more), 75 nights fall to 32°F or colder and 119 days bring measurable precipitation.
- Days at 90°F or more
- 73a normal year
- Days at 100°F or more
- 19a normal year
- Nights at 32°F or colder
- 75a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 119a normal year
- Days with 1 inch of snow or more
- 3a normal year
The highest temperature in this station's record (since 1962) is 114°F, on August 14, 2008; the lowest is −6°F, on December 10, 1972.
The wettest calendar year on that record is 1996, with 104.16 in; the snowiest season is 1981–82, with 83.9 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00351448; records: ACIS (NOAA Regional Climate Centers), station USC00351448. Records use complete months only; a month missing more than three days is left out.
How sunny is Cave Junction?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Cave Junction, 4.5 kWh per square metre a day. July is the sunniest month (94%) and December the cloudiest (58%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 63% | 1.7 |
| February | 66% | 2.6 |
| March | 66% | 3.6 |
| April | 71% | 5.0 |
| May | 78% | 6.4 |
| June | 84% | 7.4 |
| July | 94% | 7.9 |
| August | 93% | 6.8 |
| September | 88% | 5.2 |
| October | 79% | 3.4 |
| November | 65% | 1.9 |
| December | 58% | 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 Cave Junction need?
A normal year in Cave Junction brings 4,323 heating degree days, 20% fewer than the median U.S. place (5,373), and 656 cooling degree days, 28% 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 2,951 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 753 | 0 |
| February | 589 | 0 |
| March | 549 | 0 |
| April | 401 | 1 |
| May | 210 | 21 |
| June | 80 | 80 |
| July | 6 | 256 |
| August | 7 | 212 |
| September | 61 | 82 |
| October | 304 | 5 |
| November | 585 | 0 |
| December | 777 | 0 |
| Year (annual) | 4,323 | 656 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00351448. 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 Cave Junction been warmer than normal lately?
Over 46 complete years from 1963 to 2015, the station's annual mean temperature rose at a fitted 7.5°F per century (+0.42°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Cave Junction's climate compare?
Cave Junction is warmer than 94 of the other 104 places with their own NOAA record in Oregon, and wetter than 78. 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, Cave Junction is Csa: temperate, dry-summer, hot 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 Cave Junction share this climate record?
5 places have no NOAA station with 1991-2020 normals of their 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.
- Takilma, OR665 people · 8 mi S
- Selma, OR654 people · 8 mi N
- Happy Camp, CA580 people · 27 mi SE
- O'Brien, OR528 people · 6 mi SW
- Kerby, OR98 people · 3 mi N
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 Cave Junction's climate
What is the coldest month in Cave Junction?
December, with a normal high of 47°F and a normal low of 33°F. The warmest is July (94°F by day, 52°F at night).
Does it snow in Cave Junction?
Yes: 7 inches in a normal year, falling on 3 days with 0.1 inch or more, the most in January (2.1 inches).
What is the rainiest month in Cave Junction?
December, with 12.95 in of precipitation in a normal year; the driest is July with 0.25 in.
What plant hardiness zone is Cave Junction in?
The USDA's 2023 map puts Cave Junction in zone 8b in ZIP code 97531, the nearest ZIP area. By the same method at Cave Junction's NOAA station, the coldest night of a typical year reaches 18°F (23 years, 1991-2020): zone 8b.
How late can frost come in Cave Junction?
In half of years the last 32°F night comes after May 1; in one year in ten it comes after May 23. Waiting until May 23 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Oregon climateThe statewide normals and every place in the state
- Grants Pass, OR24 miles from this station, 55.6°F a year
- Ruch, OR31 miles from this station, 54.2°F a year
- Sexton Summit, OR34 miles from this station, 48.9°F a year
- Brookings, OR34 miles from this station, 53.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made