Sexton Summit, Oregon climate: Climate normals at a NOAA weather station
Sexton Summit's normal year runs from 32°F December nights to 77°F August afternoons, with 40.7 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 9.4°C, December lows of 0°C, August highs of 25°C, 1,033 mm of precipitation a year.
- NOAA stationSexton Summit
- Station IDUSW00024235
- Location42.60°N 123.36°W
- Elevation3,832 ft (1,168 m)
On October 23, the normal high in Sexton Summit is 55°F and the normal low 41°F, and the chance of measurable rain or snow is 35%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Sexton Summit.
- Jan 43° 33°
- Feb 44° 33°
- Mar 46° 33°
- Apr 52° 35°
- May 61° 41°
- Jun 68° 46°
- Jul 77° 53°
- Aug 77° 54°
- Sep 70° 51°
- Oct 58° 43°
- Nov 47° 36°
- Dec 41° 32°
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 Sexton Summit each month?
August is the warmest month, with normal highs of 77°F; December the coldest, with normal lows of 32°F. The most precipitation falls in December (8.14 in), the least in August (0.28 in).
Each month has its own page with the day-by-day normals, the month's records and its recent years:
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 43°F | 33°F | 38.2°F | 6.44 | 15 | <1 | 15 | 9 h 20 min |
| February | 44°F | 33°F | 38.2°F | 5.19 | 15 | <1 | 14 | 10 h 30 min |
| March | 46°F | 33°F | 39.7°F | 4.89 | 17 | <1 | 16 | 11 h 50 min |
| April | 52°F | 35°F | 43.4°F | 3.00 | 14 | <1 | 12 | 13 h 20 min |
| May | 61°F | 41°F | 51.0°F | 2.19 | 10 | <1 | 4 | 14 h 30 min |
| June | 68°F | 46°F | 56.7°F | 0.94 | 6 | <1 | <1 | 15 h 20 min |
| July | 77°F | 53°F | 64.9°F | 0.29 | 2 | 1 | <1 | 15 h |
| August | 77°F | 54°F | 65.3°F | 0.28 | 2 | 1 | <1 | 14 h |
| September | 70°F | 51°F | 60.5°F | 0.84 | 4 | <1 | <1 | 12 h 30 min |
| October | 58°F | 43°F | 50.8°F | 2.88 | 9 | <1 | 2 | 11 h 10 min |
| November | 47°F | 36°F | 41.5°F | 5.58 | 16 | <1 | 10 | 9 h 50 min |
| December | 41°F | 32°F | 36.8°F | 8.14 | 17 | <1 | 17 | 9 h |
| Year (annual) | 57°F | 41°F | 48.9°F | 40.66 | 126 | 4 | 90 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 6°C | 1°C | 3.4°C | 164 mm |
| February | 7°C | 0°C | 3.4°C | 132 mm |
| March | 8°C | 1°C | 4.3°C | 124 mm |
| April | 11°C | 2°C | 6.3°C | 76 mm |
| May | 16°C | 5°C | 10.6°C | 56 mm |
| June | 20°C | 8°C | 13.7°C | 24 mm |
| July | 25°C | 12°C | 18.3°C | 7 mm |
| August | 25°C | 12°C | 18.5°C | 7 mm |
| September | 21°C | 10°C | 15.8°C | 21 mm |
| October | 15°C | 6°C | 10.4°C | 73 mm |
| November | 8°C | 2°C | 5.3°C | 142 mm |
| December | 5°C | 0°C | 2.7°C | 207 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Grants Pass (12 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 USW00024235; 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 Sexton Summit?
Normal highs sit between 65°F and 85°F in June, July, August and September. 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 USW00024235.
When is the last frost at Sexton Summit?
In Sexton Summit, the last spring frost (32°F) comes after May 16 in half of years and after June 7 in one year in ten; the first autumn frost comes before October 30 in half of years and before October 8 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 161 year in 10 after June 7; 9 in 10 after April 23
- First autumn frost, half of years before
- October 301 year in 10 before October 8; 9 in 10 before November 17
NOAA puts the median frost-free season at 164 days, and the season without a hard freeze (28°F) at 211 days.
A hard freeze (28°F) comes after April 23 in half of springs and before November 17 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Sexton Summit in zone 8b in ZIP code 97526, 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 18°F (24 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 USW00024235; 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 Sexton Summit?
In a normal year in Sexton Summit, 4 days a year reach 90°F, 90 nights fall to 32°F or colder and 126 days bring measurable precipitation.
- Days at 90°F or more
- 4a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 90a normal year
- Days that stay below freezing
- 16high of 32°F or less
- Days with 0.01 inch of precipitation
- 126a normal year
The highest temperature in this station's record (since 1948) is 100°F, on June 28, 2021; the lowest is −4°F, on December 21, 1990.
The wettest calendar year on that record is 1973, with 58.45 in; the snowiest season is 1968–69, with 195.3 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00024235; records: ACIS (NOAA Regional Climate Centers), station USW00024235. Records use complete months only; a month missing more than three days is left out.
How humid and windy is it at Sexton Summit, and how clear are the skies?
The summer (June-August) dew point averages 46°F. The muggiest month is July, with an average dew point of 48°F; the driest air comes in December (28°F). December is the windiest month (11.3 mph on average), and July has the most clear or nearly clear hours (93%).
| Month | Dew point | Humidity | Afternoon humidity | Wind | Clear or few clouds | Overcast |
|---|---|---|---|---|---|---|
| January | 30°F | 70% | 65% | 10.6 mph | – | – |
| February | 30°F | 77% | 70% | 9.1 mph | – | – |
| March | 32°F | 76% | 64% | 8.0 mph | – | – |
| April | 35°F | 67% | 50% | 7.4 mph | – | – |
| May | 42°F | 69% | 50% | 7.4 mph | – | – |
| June | 46°F | 62% | 42% | 7.5 mph | – | – |
| July | 48°F | 55% | 37% | 7.6 mph | 93% | 4% |
| August | 44°F | 54% | 36% | 7.4 mph | – | – |
| September | 39°F | 53% | 42% | 7.4 mph | – | – |
| October | 35°F | 67% | 61% | 9.0 mph | – | – |
| November | 30°F | 75% | 71% | 10.4 mph | – | – |
| December | 28°F | 72% | 68% | 11.3 mph | – | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00024235. Monthly averages of all hours; afternoon humidity at 3 p.m. local standard time; sky as the share of hours NOAA's observations rate clear or few clouds (a dash where NOAA publishes no sky value).
How sunny is it at Sexton Summit?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds at Sexton Summit, 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 many heating and cooling degree days does Sexton Summit record?
A normal year at Sexton Summit brings 6,116 heating degree days, 14% more than the median U.S. place (5,373), and 275 cooling degree days, 70% 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 1,836 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 831 | 0 |
| February | 750 | 0 |
| March | 784 | 0 |
| April | 647 | 1 |
| May | 443 | 11 |
| June | 271 | 21 |
| July | 89 | 85 |
| August | 83 | 92 |
| September | 189 | 55 |
| October | 449 | 11 |
| November | 705 | 0 |
| December | 874 | 0 |
| Year (annual) | 6,116 | 275 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00024235. 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 Sexton Summit been warmer than normal?
2023 averaged 48.8°F, 0.1°F below the 1991-2020 normal of 48.9°F. 2 of the 3 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 49.6°F | +0.7°F | 41.62 |
| 2022 | 49.9°F | +1.0°F | 32.43 |
| 2023 | 48.8°F | −0.1°F | 38.88 |
Over 67 complete years from 1948 to 2023, the station's annual mean temperature rose at a fitted 4.7°F per century (+0.26°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USW00024235; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Sexton Summit's climate compare?
Sexton Summit is warmer than 24 of the 105 places with their own NOAA record in Oregon, and wetter than 55. Across the 7,247 U.S. stations with normals, its annual mean of 48.9°F is warmer than 36%.
In the Köppen classification computed from these normals, Sexton Summit 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 Sexton Summit share this climate record?
3 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.
- Merlin, OR1,355 people · 7 mi SW
- Glendale, OR867 people · 10 mi N
- Wimer, OR449 people · 12 mi E
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 Sexton Summit's climate
What is the coldest month at Sexton Summit?
December, with a normal high of 41°F and a normal low of 32°F. The warmest is August (77°F by day, 54°F at night).
Does it snow at Sexton Summit?
Rarely. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Grants Pass (12 miles away), records 1 inches of snow in a normal year.
What is the rainiest month at Sexton Summit?
December, with 8.14 in of precipitation in a normal year; the driest is August with 0.28 in.
What plant hardiness zone is Sexton Summit in?
The USDA's 2023 map puts Sexton Summit in zone 8b in ZIP code 97526, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 18°F (24 years, 1991-2020): zone 8b.
How late can frost come at Sexton Summit?
In half of years the last 32°F night comes after May 16; in one year in ten it comes after June 7. Waiting until June 7 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Sexton Summit in OctoberThis month day by day, its records and recent years
- Oregon climateThe statewide normals and every place in the state
- Grants Pass, OR12 miles from this station, 55.6°F a year
- Riddle, OR24 miles from this station, 56.7°F a year
- Medford, OR29 miles from this station, 55.9°F a year
- Ruch, OR30 miles from this station, 54.2°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made