Blue Canyon Airport, California climate: Climate normals at a NOAA weather station
Blue Canyon Airport's normal year runs from 33°F February nights to 78°F July afternoons, with 62.4 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 11.2°C, February lows of 1°C, July highs of 25°C, 1,586 mm of precipitation a year.
- NOAA stationBlue Canyon Airport
- Station IDUSW00023225
- Location39.28°N 120.71°W
- Elevation5,276 ft (1,608 m)
On October 23, the normal high in Blue Canyon Airport is 60°F and the normal low 46°F, and the chance of measurable rain or snow is 20%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Blue Canyon Airport.
- Jan 47° 34°
- Feb 45° 33°
- Mar 48° 35°
- Apr 52° 38°
- May 61° 46°
- Jun 70° 54°
- Jul 78° 63°
- Aug 77° 62°
- Sep 73° 57°
- Oct 63° 48°
- Nov 51° 39°
- Dec 45° 34°
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 Blue Canyon Airport each month?
July is the warmest month, with normal highs of 78°F; February the coldest, with normal lows of 33°F. The most precipitation falls in December (10.90 in), the least in July (0.04 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 | 47°F | 34°F | 40.4°F | 10.55 | 12 | <1 | 14 | 9 h 40 min |
| February | 45°F | 33°F | 39.0°F | 10.06 | 12 | <1 | 15 | 10 h 40 min |
| March | 48°F | 35°F | 41.5°F | 8.95 | 13 | <1 | 13 | 11 h 50 min |
| April | 52°F | 38°F | 44.8°F | 5.11 | 11 | <1 | 10 | 13 h 10 min |
| May | 61°F | 46°F | 53.1°F | 4.11 | 8 | <1 | 3 | 14 h 20 min |
| June | 70°F | 54°F | 62.1°F | 1.14 | 3 | <1 | <1 | 14 h 50 min |
| July | 78°F | 63°F | 70.2°F | 0.04 | <1 | <1 | <1 | 14 h 40 min |
| August | 77°F | 62°F | 69.8°F | 0.20 | 1 | <1 | <1 | 13 h 50 min |
| September | 73°F | 57°F | 65.1°F | 0.59 | 2 | <1 | <1 | 12 h 30 min |
| October | 63°F | 48°F | 55.5°F | 3.59 | 5 | <1 | 2 | 11 h 10 min |
| November | 51°F | 39°F | 45.1°F | 7.20 | 9 | <1 | 8 | 10 h |
| December | 45°F | 34°F | 39.2°F | 10.90 | 14 | <1 | 15 | 9 h 30 min |
| Year (annual) | 59°F | 45°F | 52.1°F | 62.44 | 90 | 1 | 79 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 8°C | 1°C | 4.7°C | 268 mm |
| February | 7°C | 1°C | 3.9°C | 256 mm |
| March | 9°C | 2°C | 5.3°C | 227 mm |
| April | 11°C | 3°C | 7.1°C | 130 mm |
| May | 16°C | 8°C | 11.7°C | 104 mm |
| June | 21°C | 12°C | 16.7°C | 29 mm |
| July | 25°C | 17°C | 21.2°C | 1 mm |
| August | 25°C | 17°C | 21.0°C | 5 mm |
| September | 23°C | 14°C | 18.4°C | 15 mm |
| October | 17°C | 9°C | 13.1°C | 91 mm |
| November | 11°C | 4°C | 7.3°C | 183 mm |
| December | 7°C | 1°C | 4.0°C | 277 mm |
NOAA publishes no 1991-2020 snowfall normal for this station. The nearest record that keeps one, Nevada City (16 miles away), gets 15 inches of snow in a normal year; elevation and distance can change that.
Source: NOAA NCEI 1991-2020 monthly normals, station USW00023225; 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 Blue Canyon Airport?
Normal highs sit between 65°F and 85°F in June, July, August and September. Of those, July has the fewest days with rain (0).
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 USW00023225.
When is the last frost at Blue Canyon Airport?
In Blue Canyon Airport, the last spring frost (32°F) comes after May 4 in half of years and after May 31 in one year in ten; the first autumn frost comes before November 4 in half of years and before October 12 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 41 year in 10 after May 31; 9 in 10 after April 12
- First autumn frost, half of years before
- November 41 year in 10 before October 12; 9 in 10 before November 26
NOAA puts the median frost-free season at 183 days, and the season without a hard freeze (28°F) at 219 days.
A hard freeze (28°F) comes after April 16 in half of springs and before November 23 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Blue Canyon Airport in zone 8a in ZIP code 95715, 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 (21 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 California · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USW00023225; 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 Blue Canyon Airport?
In a normal year in Blue Canyon Airport, 1 day a year reaches 90°F, 79 nights fall to 32°F or colder and 90 days bring measurable precipitation.
- Days at 90°F or more
- 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 79a normal year
- Days that stay below freezing
- 15high of 32°F or less
- Days with 0.01 inch of precipitation
- 90a normal year
The highest temperature in this station's record (since 1943) is 97°F, on August 8, 1978; the lowest is 3°F, on December 9, 1972.
The wettest calendar year on that record is 1983, with 121.71 in; the snowiest season is 1951–52, with 526.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USW00023225; records: ACIS (NOAA Regional Climate Centers), station USW00023225. Records use complete months only; a month missing more than three days is left out.
How humid and windy is it at Blue Canyon Airport, and how clear are the skies?
The summer (June-August) dew point averages 39°F. The muggiest month is July, with an average dew point of 40°F; the driest air comes in December (21°F). February is the windiest month (6.2 mph on average), and August has the most clear or nearly clear hours (94%).
| Month | Dew point | Humidity | Afternoon humidity | Wind | Clear or few clouds | Overcast |
|---|---|---|---|---|---|---|
| January | 23°F | 50% | 50% | 5.4 mph | – | – |
| February | 25°F | 59% | 56% | 6.2 mph | – | – |
| March | 27°F | 57% | 52% | 6.1 mph | – | – |
| April | 31°F | 50% | 44% | 5.7 mph | – | – |
| May | 38°F | 49% | 45% | 4.9 mph | – | – |
| June | 40°F | 38% | 33% | 4.8 mph | – | – |
| July | 40°F | 33% | 28% | 4.2 mph | – | – |
| August | 37°F | 32% | 27% | 4.7 mph | 94% | 1% |
| September | 33°F | 35% | 31% | 4.9 mph | 84% | 8% |
| October | 28°F | 43% | 42% | 5.2 mph | – | – |
| November | 23°F | 50% | 52% | 5.6 mph | – | – |
| December | 21°F | 49% | 51% | 5.7 mph | – | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00023225. 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 Blue Canyon Airport?
Over a year 85% of the sunlight that would reach the ground under clear skies gets through the clouds at Blue Canyon Airport, 5.1 kWh per square metre a day. July is the sunniest month (95%) and December the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 73% | 2.4 |
| February | 72% | 3.2 |
| March | 73% | 4.4 |
| April | 77% | 5.8 |
| May | 82% | 7.1 |
| June | 92% | 8.3 |
| July | 95% | 8.3 |
| August | 95% | 7.4 |
| September | 93% | 5.9 |
| October | 87% | 4.2 |
| November | 77% | 2.7 |
| December | 69% | 2.0 |
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 Blue Canyon Airport record?
A normal year at Blue Canyon Airport brings 5,213 heating degree days, 3% fewer than the median U.S. place (5,373), and 552 cooling degree days, 39% 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 2,671 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 761 | 0 |
| February | 727 | 0 |
| March | 730 | 0 |
| April | 608 | 0 |
| May | 384 | 15 |
| June | 148 | 61 |
| July | 20 | 183 |
| August | 22 | 170 |
| September | 102 | 103 |
| October | 315 | 21 |
| November | 598 | 1 |
| December | 800 | 0 |
| Year (annual) | 5,213 | 552 |
Source: NOAA NCEI 1991-2020 monthly normals, station USW00023225. 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 Blue Canyon Airport been warmer than normal?
2025 averaged 53.4°F, 1.3°F above the 1991-2020 normal of 52.1°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 54.0°F | +1.9°F | 68.43 |
| 2022 | 53.6°F | +1.5°F | 52.20 |
| 2023 | 50.9°F | −1.2°F | 74.45 |
| 2024 | 53.3°F | +1.2°F | 74.09 |
| 2025 | 53.4°F | +1.3°F | 76.35 |
Over 69 complete years from 1944 to 2025, the station's annual mean temperature rose at a fitted 4.6°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 USW00023225; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Blue Canyon Airport's climate compare?
Blue Canyon Airport is warmer than 28 of the 219 places with their own NOAA record in California, and wetter than 209. Across the 7,247 U.S. stations with normals, its annual mean of 52.1°F is warmer than 50%.
In the Köppen classification computed from these normals, Blue Canyon Airport 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 Blue Canyon Airport 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.
- Alta, CA740 people · 6 mi SW
- Washington, CA124 people · 7 mi NW
- Dutch Flat, CA103 people · 8 mi SW
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 Blue Canyon Airport's climate
What is the coldest month at Blue Canyon Airport?
February, with a normal high of 45°F and a normal low of 33°F. The warmest is July (78°F by day, 63°F at night).
Does it snow at Blue Canyon Airport?
Yes. NOAA publishes no 1991-2020 snowfall normal for the station; the nearest record that keeps one, Nevada City (16 miles away), records 15 inches of snow in a normal year.
What is the rainiest month at Blue Canyon Airport?
December, with 10.90 in of precipitation in a normal year; the driest is July with 0.04 in.
What plant hardiness zone is Blue Canyon Airport in?
The USDA's 2023 map puts Blue Canyon Airport in zone 8a in ZIP code 95715, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 17°F (21 years, 1991-2020): zone 8b.
How late can frost come at Blue Canyon Airport?
In half of years the last 32°F night comes after May 4; in one year in ten it comes after May 31. Waiting until May 31 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Blue Canyon Airport in OctoberThis month day by day, its records and recent years
- California climateThe statewide normals and every place in the state
- Lake Spaulding, CA5 miles from this station, 48.1°F a year
- Bowman Dam, CA12 miles from this station, 50.4°F a year
- Nevada City, CA16 miles from this station, 56.2°F a year
- Colfax, CA18 miles from this station, 59.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made