Wrightwood, California climate: Normal weather by month, frost dates and records
Wrightwood's normal year runs from 25°F December nights to 83°F July afternoons, with 21.1 inches of precipitation and 62 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 10.0°C, December lows of −4°C, July highs of 29°C, 535 mm of precipitation a year.
- NOAA stationWrightwood
- Station IDUSC00049822
- Location34.36°N 117.64°W
- Elevation6,000 ft (1,829 m)
- Population (census place)4,907
On October 23, the normal high in Wrightwood is 62°F and the normal low 35°F, and the chance of measurable rain or snow is 10%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Wrightwood.
- Jan 48° 26°
- Feb 48° 25°
- Mar 54° 29°
- Apr 60° 32°
- May 69° 39°
- Jun 78° 44°
- Jul 83° 53°
- Aug 82° 51°
- Sep 75° 46°
- Oct 64° 37°
- Nov 55° 29°
- Dec 48° 25°
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 Wrightwood each month?
July is the warmest month, with normal highs of 83°F; December the coldest, with normal lows of 25°F. The most precipitation falls in February (4.93 in), the least in June (0.08 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 48°F | 26°F | 36.6°F | 4.37 | 10.5 | 5 | <1 | 26 | 10 h 10 min |
| February | 48°F | 25°F | 36.4°F | 4.93 | 24.8 | 9 | <1 | 25 | 11 h |
| March | 54°F | 29°F | 41.8°F | 1.85 | 8.3 | 5 | <1 | 23 | 11 h 50 min |
| April | 60°F | 32°F | 46.1°F | 0.80 | 7.2 | 5 | <1 | 18 | 13 h |
| May | 69°F | 39°F | 54.0°F | 0.79 | 1.6 | 2 | <1 | 6 | 14 h |
| June | 78°F | 44°F | 61.2°F | 0.08 | 0.0 | 1 | <1 | 1 | 14 h 30 min |
| July | 83°F | 53°F | 67.9°F | 1.06 | 0.0 | 2 | 3 | <1 | 14 h 20 min |
| August | 82°F | 51°F | 66.7°F | 0.31 | 0.0 | 2 | 1 | <1 | 13 h 30 min |
| September | 75°F | 46°F | 60.6°F | 0.38 | 0.0 | 2 | <1 | 1 | 12 h 30 min |
| October | 64°F | 37°F | 50.5°F | 1.21 | 0.5 | 3 | <1 | 10 | 11 h 20 min |
| November | 55°F | 29°F | 41.8°F | 1.14 | 3.6 | 3 | <1 | 21 | 10 h 20 min |
| December | 48°F | 25°F | 36.0°F | 4.14 | 5.3 | 5 | <1 | 28 | 9 h 50 min |
| Year (annual) | 64°F | 36°F | 50.0°F | 21.06 | 61.8 | 42 | 4 | 159 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 9°C | −4°C | 2.6°C | 111 mm | 27 cm |
| February | 9°C | −4°C | 2.4°C | 125 mm | 63 cm |
| March | 12°C | −1°C | 5.4°C | 47 mm | 21 cm |
| April | 16°C | 0°C | 7.8°C | 20 mm | 18 cm |
| May | 21°C | 4°C | 12.2°C | 20 mm | 4 cm |
| June | 26°C | 7°C | 16.2°C | 2 mm | 0 cm |
| July | 29°C | 11°C | 19.9°C | 27 mm | 0 cm |
| August | 28°C | 11°C | 19.3°C | 8 mm | 0 cm |
| September | 24°C | 8°C | 15.9°C | 10 mm | 0 cm |
| October | 18°C | 3°C | 10.3°C | 31 mm | 1 cm |
| November | 13°C | −2°C | 5.4°C | 29 mm | 9 cm |
| December | 9°C | −4°C | 2.2°C | 105 mm | 13 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00049822; 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 Wrightwood?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, June has the fewest days with rain (1).
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 USC00049822.
When is the last frost in Wrightwood?
In Wrightwood, the last spring frost (32°F) comes after May 16 in half of years and after June 9 in one year in ten; the first autumn frost comes before October 13 in half of years and before September 25 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 9; 9 in 10 after April 25
- First autumn frost, half of years before
- October 131 year in 10 before September 25; 9 in 10 before November 1
NOAA puts the median frost-free season at 151 days, and the season without a hard freeze (28°F) at 186 days.
A hard freeze (28°F) comes after April 25 in half of springs and before October 30 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Wrightwood in zone 7b in ZIP code 92397.
Frost dates for every NOAA station in California · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00049822; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026. 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 Wrightwood?
In a normal year in Wrightwood, 4 days a year reach 90°F, 159 nights fall to 32°F or colder and 42 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
- 159a normal year
- Days that stay below freezing
- 4high of 32°F or less
- Days with 0.01 inch of precipitation
- 42a normal year
- Days with 1 inch of snow or more
- 13a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00049822.
How sunny is Wrightwood?
Over a year 92% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Wrightwood, 5.8 kWh per square metre a day. August is the sunniest month (96%) and December the cloudiest (85%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 85% | 3.3 |
| February | 85% | 4.2 |
| March | 89% | 5.7 |
| April | 90% | 6.9 |
| May | 92% | 7.8 |
| June | 96% | 8.4 |
| July | 94% | 7.9 |
| August | 96% | 7.4 |
| September | 95% | 6.3 |
| October | 93% | 4.9 |
| November | 90% | 3.6 |
| December | 85% | 2.9 |
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 Wrightwood need?
A normal year in Wrightwood brings 5,692 heating degree days, 6% more than the median U.S. place (5,373), and 237 cooling degree days, 74% 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 2,050 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 881 | 0 |
| February | 799 | 0 |
| March | 719 | 0 |
| April | 565 | 0 |
| May | 345 | 2 |
| June | 135 | 20 |
| July | 22 | 111 |
| August | 35 | 86 |
| September | 149 | 17 |
| October | 448 | 1 |
| November | 696 | 0 |
| December | 897 | 0 |
| Year (annual) | 5,692 | 237 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00049822. 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 Wrightwood's climate compare?
Wrightwood is warmer than 16 of the other 218 places with their own NOAA record in California, and wetter than 141. Across the 7,247 U.S. stations with normals, its annual mean of 50.0°F is warmer than 40%.
In the Köppen classification computed from these normals, Wrightwood 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 Wrightwood 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.
- Phelan, CA18,059 people · 8 mi NE
- Piñon Hills, CA7,149 people · 6 mi N
- Lytle Creek, CA588 people · 11 mi SE
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 Wrightwood's climate
What is the coldest month in Wrightwood?
December, with a normal high of 48°F and a normal low of 25°F. The warmest is July (83°F by day, 53°F at night).
Does it snow in Wrightwood?
Yes: 62 inches in a normal year, falling on 18 days with 0.1 inch or more, the most in February (24.8 inches).
What is the rainiest month in Wrightwood?
February, with 4.93 in of precipitation in a normal year; the driest is June with 0.08 in.
What plant hardiness zone is Wrightwood in?
The USDA's 2023 map puts Wrightwood in zone 7b in ZIP code 92397.
How late can frost come in Wrightwood?
In half of years the last 32°F night comes after May 16; in one year in ten it comes after June 9. Waiting until June 9 leaves about a one-in-ten chance of a later frost.
Nearby and next
- California climateThe statewide normals and every place in the state
- El Mirage, CA16 miles from this station, 61.2°F a year
- Pearblossom, CA17 miles from this station, 64.3°F a year
- Pomona, CA21 miles from this station, 65.0°F a year
- Ontario, CA21 miles from this station, 66.8°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made