Grizzly, Oregon climate: Climate normals at a NOAA weather station
Grizzly's normal year runs from 22°F December nights to 84°F July afternoons, with 13.4 inches of precipitation and 21 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.4°C, December lows of −6°C, July highs of 29°C, 340 mm of precipitation a year.
- NOAA stationGrizzly
- Station IDUSC00353542
- Location44.52°N 120.94°W
- Elevation3,635 ft (1,108 m)
On October 23, the normal high in Grizzly is 58°F and the normal low 29°F, and the chance of measurable rain or snow is 28%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Grizzly.
- Jan 42° 23°
- Feb 45° 23°
- Mar 51° 25°
- Apr 57° 27°
- May 66° 33°
- Jun 73° 37°
- Jul 84° 41°
- Aug 83° 41°
- Sep 75° 36°
- Oct 62° 30°
- Nov 48° 26°
- Dec 41° 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 at Grizzly each month?
July is the warmest month, with normal highs of 84°F; December the coldest, with normal lows of 22°F. The most precipitation falls in December (1.69 in), the least in August (0.42 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 42°F | 23°F | 32.6°F | 1.36 | 5.1 | 10 | <1 | 25 | 9 h 10 min |
| February | 45°F | 23°F | 33.8°F | 1.07 | 4.1 | 9 | <1 | 24 | 10 h 30 min |
| March | 51°F | 25°F | 38.0°F | 1.23 | 1.8 | 11 | <1 | 26 | 11 h 50 min |
| April | 57°F | 27°F | 42.2°F | 1.28 | 0.4 | 10 | <1 | 22 | 13 h 30 min |
| May | 66°F | 33°F | 49.3°F | 1.50 | 0.2 | 10 | <1 | 15 | 14 h 50 min |
| June | 73°F | 37°F | 55.0°F | 1.15 | 0.0 | 7 | 1 | 8 | 15 h 30 min |
| July | 84°F | 41°F | 62.5°F | 0.49 | 0.0 | 3 | 8 | 2 | 15 h 10 min |
| August | 83°F | 41°F | 62.1°F | 0.42 | 0.0 | 3 | 6 | 2 | 14 h 10 min |
| September | 75°F | 36°F | 55.8°F | 0.55 | 0.0 | 4 | 2 | 8 | 12 h 40 min |
| October | 62°F | 30°F | 45.8°F | 1.14 | 0.4 | 8 | <1 | 19 | 11 h |
| November | 48°F | 26°F | 36.9°F | 1.49 | 2.0 | 12 | <1 | 22 | 9 h 40 min |
| December | 41°F | 22°F | 31.2°F | 1.69 | 7.2 | 11 | <1 | 27 | 8 h 50 min |
| Year (annual) | 61°F | 30°F | 45.4°F | 13.37 | 21.2 | 97 | 17 | 199 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 6°C | −5°C | 0.3°C | 35 mm | 13 cm |
| February | 7°C | −5°C | 1.0°C | 27 mm | 10 cm |
| March | 10°C | −4°C | 3.3°C | 31 mm | 5 cm |
| April | 14°C | −3°C | 5.7°C | 33 mm | 1 cm |
| May | 19°C | 0°C | 9.6°C | 38 mm | 1 cm |
| June | 23°C | 3°C | 12.8°C | 29 mm | 0 cm |
| July | 29°C | 5°C | 16.9°C | 12 mm | 0 cm |
| August | 28°C | 5°C | 16.7°C | 11 mm | 0 cm |
| September | 24°C | 2°C | 13.2°C | 14 mm | 0 cm |
| October | 16°C | −1°C | 7.7°C | 29 mm | 1 cm |
| November | 9°C | −4°C | 2.7°C | 38 mm | 5 cm |
| December | 5°C | −6°C | −0.4°C | 43 mm | 18 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00353542; 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 Grizzly?
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 USC00353542.
How hot and how cold does it get at Grizzly?
In a normal year in Grizzly, 17 days a year reach 90°F (1 of them 100°F or more), 199 nights fall to 32°F or colder and 97 days bring measurable precipitation.
- Days at 90°F or more
- 17a normal year
- Days at 100°F or more
- 1a normal year
- Nights at 32°F or colder
- 199a normal year
- Days that stay below freezing
- 13high of 32°F or less
- Days with 0.01 inch of precipitation
- 97a normal year
- Days with 1 inch of snow or more
- 10a normal year
The highest temperature in this station's record (since 1935) is 112°F, on June 29, 2021; the lowest is −29°F, on December 21, 1990.
The wettest calendar year on that record is 1998, with 22.25 in; the snowiest season is 1968–69, with 90.6 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00353542; records: ACIS (NOAA Regional Climate Centers), station USC00353542. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Grizzly?
Over a year 79% of the sunlight that would reach the ground under clear skies gets through the clouds at Grizzly, 4.4 kWh per square metre a day. July is the sunniest month (93%) and December the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 64% | 1.6 |
| February | 68% | 2.5 |
| March | 69% | 3.7 |
| April | 73% | 5.2 |
| May | 76% | 6.3 |
| June | 83% | 7.3 |
| July | 93% | 7.8 |
| August | 91% | 6.6 |
| September | 87% | 5.0 |
| October | 78% | 3.2 |
| November | 67% | 1.9 |
| December | 62% | 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 many heating and cooling degree days does Grizzly record?
A normal year at Grizzly brings 7,211 heating degree days, 34% more than the median U.S. place (5,373), and 99 cooling degree days, 89% fewer than the median (908). Nine months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 1,285 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,004 | 0 |
| February | 874 | 0 |
| March | 837 | 0 |
| April | 684 | 0 |
| May | 487 | 1 |
| June | 307 | 8 |
| July | 123 | 45 |
| August | 127 | 37 |
| September | 285 | 7 |
| October | 596 | 0 |
| November | 842 | 0 |
| December | 1,048 | 0 |
| Year (annual) | 7,211 | 99 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00353542. 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 Grizzly been warmer than normal?
2025 averaged 48.2°F, 2.8°F above the 1991-2020 normal of 45.4°F. 5 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 48.0°F | +2.6°F | 11.72 | – |
| 2022 | 46.8°F | +1.4°F | 13.77 | – |
| 2023 | 47.5°F | +2.1°F | 12.07 | – |
| 2024 | 46.9°F | +1.5°F | 15.21 | 39.0 |
| 2025 | 48.2°F | +2.8°F | 15.16 | – |
Over 31 complete years from 1953 to 2024, the station's annual mean temperature rose at a fitted 3.4°F per century (+0.19°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00353542; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Grizzly's climate compare?
Grizzly is warmer than 7 of the 105 places with their own NOAA record in Oregon, and wetter than 20. Across the 7,247 U.S. stations with normals, its annual mean of 45.4°F is warmer than 21%.
In the Köppen classification computed from these normals, Grizzly 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.
Which places near Grizzly share this climate record?
Ochoco West 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.
- Ochoco West, OR340 people · 8 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 Grizzly's climate
What is the coldest month at Grizzly?
December, with a normal high of 41°F and a normal low of 22°F. The warmest is July (84°F by day, 41°F at night).
Does it snow at Grizzly?
Yes: 21 inches in a normal year, falling on 10 days with 0.1 inch or more, the most in December (7.2 inches).
What is the rainiest month at Grizzly?
December, with 1.69 in of precipitation in a normal year; the driest is August with 0.42 in.
What plant hardiness zone is Grizzly in?
The USDA's 2023 map puts Grizzly in zone 7a in ZIP code 97741, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −6°F (23 years, 1991-2020): zone 6a.
Nearby and next
- Oregon climateThe statewide normals and every place in the state
- Madras, OR14 miles from this station, 49.0°F a year
- Prineville, OR16 miles from this station, 49.4°F a year
- Redmond, OR21 miles from this station, 48.9°F a year
- Pelton Dam, OR21 miles from this station, 52.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made