Long Creek, Oregon climate: Normal weather by month, frost dates and records
Long Creek's normal year runs from 22°F December nights to 85°F August afternoons, with 17.2 inches of precipitation and 33 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.1°C, December lows of −6°C, August highs of 29°C, 436 mm of precipitation a year.
- NOAA stationLong Creek
- Station IDUSC00355020
- Location44.71°N 119.10°W
- Elevation3,740 ft (1,140 m)
- Population168
On October 23, the normal high in Long Creek is 58°F and the normal low 31°F, and the chance of measurable rain or snow is 32%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Long Creek.
- Jan 40° 22°
- Feb 44° 24°
- Mar 50° 27°
- Apr 56° 31°
- May 65° 37°
- Jun 73° 42°
- Jul 84° 47°
- Aug 85° 46°
- Sep 76° 40°
- Oct 62° 33°
- Nov 47° 27°
- Dec 39° 22°
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 Long Creek each month?
August is the warmest month, with normal highs of 85°F; December the coldest, with normal lows of 22°F. The most precipitation falls in May (2.34 in), the least in August (0.57 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 40°F | 22°F | 31.4°F | 1.60 | 7.2 | 13 | <1 | 26 | 9 h 10 min |
| February | 44°F | 24°F | 33.7°F | 1.35 | 5.6 | 11 | <1 | 24 | 10 h 20 min |
| March | 50°F | 27°F | 38.8°F | 1.70 | 5.8 | 13 | <1 | 24 | 11 h 50 min |
| April | 56°F | 31°F | 43.6°F | 1.76 | 2.3 | 14 | <1 | 18 | 13 h 30 min |
| May | 65°F | 37°F | 51.1°F | 2.34 | 0.1 | 12 | <1 | 8 | 14 h 50 min |
| June | 73°F | 42°F | 57.1°F | 1.48 | 0.0 | 8 | 1 | 2 | 15 h 30 min |
| July | 84°F | 47°F | 65.3°F | 0.62 | 0.0 | 3 | 10 | <1 | 15 h 20 min |
| August | 85°F | 46°F | 65.4°F | 0.57 | 0.0 | 3 | 9 | <1 | 14 h 10 min |
| September | 76°F | 40°F | 57.9°F | 0.66 | 0.0 | 4 | 2 | 3 | 12 h 40 min |
| October | 62°F | 33°F | 47.3°F | 1.60 | 0.3 | 9 | <1 | 14 | 11 h |
| November | 47°F | 27°F | 37.3°F | 1.65 | 3.6 | 11 | <1 | 20 | 9 h 40 min |
| December | 39°F | 22°F | 30.4°F | 1.83 | 8.2 | 12 | <1 | 26 | 8 h 50 min |
| Year (annual) | 60°F | 33°F | 46.6°F | 17.16 | 33.1 | 113 | 23 | 165 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 5°C | −5°C | −0.3°C | 41 mm | 18 cm |
| February | 7°C | −5°C | 0.9°C | 34 mm | 14 cm |
| March | 10°C | −3°C | 3.8°C | 43 mm | 15 cm |
| April | 13°C | −1°C | 6.4°C | 45 mm | 6 cm |
| May | 18°C | 3°C | 10.6°C | 59 mm | 0 cm |
| June | 23°C | 5°C | 13.9°C | 38 mm | 0 cm |
| July | 29°C | 8°C | 18.5°C | 16 mm | 0 cm |
| August | 29°C | 8°C | 18.6°C | 14 mm | 0 cm |
| September | 24°C | 5°C | 14.4°C | 17 mm | 0 cm |
| October | 16°C | 1°C | 8.5°C | 41 mm | 1 cm |
| November | 9°C | −3°C | 2.9°C | 42 mm | 9 cm |
| December | 4°C | −6°C | −0.9°C | 46 mm | 21 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00355020; 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 Long Creek?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, August has the fewest days with rain (3).
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 USC00355020.
When is the last frost in Long Creek?
In Long Creek, the last spring frost (32°F) comes after June 5 in half of years and after June 25 in one year in ten; the first autumn frost comes before September 14 in half of years and before August 30 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
- June 51 year in 10 after June 25; 9 in 10 after May 16
- First autumn frost, half of years before
- September 141 year in 10 before August 30; 9 in 10 before October 3
NOAA puts the median frost-free season at 99 days, and the season without a hard freeze (28°F) at 140 days.
A hard freeze (28°F) comes after May 13 in half of springs and before October 1 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Long Creek in zone 6b in ZIP code 97856, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Long Creek's NOAA station is in zone 6a: the coldest night of a typical year reaches −6°F (15 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 USC00355020; 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 Long Creek?
In a normal year in Long Creek, 23 days a year reach 90°F (1 of them 100°F or more), 165 nights fall to 32°F or colder and 113 days bring measurable precipitation.
- Days at 90°F or more
- 23a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 165a normal year
- Days that stay below freezing
- 15high of 32°F or less
- Days with 0.01 inch of precipitation
- 113a normal year
- Days with 1 inch of snow or more
- 13a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00355020.
How sunny is Long Creek?
Over a year 78% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Long Creek, 4.3 kWh per square metre a day. July is the sunniest month (92%) and December the cloudiest (59%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 64% | 1.6 |
| February | 67% | 2.5 |
| March | 68% | 3.7 |
| April | 72% | 5.1 |
| May | 74% | 6.1 |
| June | 81% | 7.1 |
| July | 92% | 7.8 |
| August | 90% | 6.6 |
| September | 86% | 5.0 |
| October | 76% | 3.2 |
| November | 66% | 1.8 |
| December | 59% | 1.3 |
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 Long Creek need?
A normal year in Long Creek brings 6,895 heating degree days, 28% more than the median U.S. place (5,373), and 211 cooling degree days, 77% 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 1,649 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,043 | 0 |
| February | 875 | 0 |
| March | 811 | 0 |
| April | 642 | 0 |
| May | 434 | 3 |
| June | 254 | 16 |
| July | 77 | 87 |
| August | 72 | 85 |
| September | 235 | 20 |
| October | 551 | 0 |
| November | 831 | 0 |
| December | 1,071 | 0 |
| Year (annual) | 6,895 | 211 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00355020. 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 Long Creek's climate compare?
Long Creek is warmer than 9 of the other 104 places with their own NOAA record in Oregon, and wetter than 34. Across the 7,247 U.S. stations with normals, its annual mean of 46.6°F is warmer than 26%.
In the Köppen classification computed from these normals, Long Creek is Dsb: continental, 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 Long Creek's climate
What is the coldest month in Long Creek?
December, with a normal high of 39°F and a normal low of 22°F. The warmest is August (85°F by day, 46°F at night).
Does it snow in Long Creek?
Yes: 33 inches in a normal year, falling on 24 days with 0.1 inch or more, the most in December (8.2 inches).
What is the rainiest month in Long Creek?
May, with 2.34 in of precipitation in a normal year; the driest is August with 0.57 in.
What plant hardiness zone is Long Creek in?
The USDA's 2023 map puts Long Creek in zone 6b in ZIP code 97856, the nearest ZIP area. By the same method at Long Creek's NOAA station, the coldest night of a typical year reaches −6°F (15 years, 1991-2020): zone 6a.
How late can frost come in Long Creek?
In half of years the last 32°F night comes after June 5; in one year in ten it comes after June 25. Waiting until June 25 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Oregon climateThe statewide normals and every place in the state
- Monument, OR17 miles from this station, 51.5°F a year
- John Day, OR21 miles from this station, 46.8°F a year
- Dayville, OR29 miles from this station, 53.2°F a year
- Austin (3 mi S), OR32 miles from this station, 42.6°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made