White Signal, New Mexico climate: Normal weather by month, frost dates and records
White Signal's normal year runs from 26°F December nights to 88°F July afternoons, with 15.2 inches of precipitation and 13 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.7°C, December lows of −3°C, July highs of 31°C, 386 mm of precipitation a year.
- NOAA stationWhite Signal
- Station IDUSC00299691
- Location32.56°N 108.36°W
- Elevation5,991 ft (1,826 m)
- Population (census place)200
On October 22, the normal high in White Signal is 71°F and the normal low 41°F, and the chance of measurable rain or snow is 13%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for White Signal.
- Jan 53° 27°
- Feb 56° 29°
- Mar 63° 33°
- Apr 71° 39°
- May 80° 48°
- Jun 89° 58°
- Jul 88° 62°
- Aug 86° 60°
- Sep 81° 54°
- Oct 72° 43°
- Nov 61° 32°
- Dec 52° 26°
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 White Signal each month?
July is the warmest month, with normal highs of 88°F; December the coldest, with normal lows of 26°F. The most precipitation falls in July (3.30 in), the least in April (0.30 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 53°F | 27°F | 39.6°F | 1.10 | 4.2 | 5 | <1 | 27 | 10 h 10 min |
| February | 56°F | 29°F | 42.8°F | 1.06 | 1.9 | 5 | <1 | 21 | 11 h |
| March | 63°F | 33°F | 48.1°F | 0.59 | 1.0 | 3 | <1 | 19 | 12 h |
| April | 71°F | 39°F | 55.2°F | 0.30 | 0.2 | 2 | <1 | 9 | 13 h |
| May | 80°F | 48°F | 63.7°F | 0.38 | 0.0 | 2 | 1 | 1 | 13 h 50 min |
| June | 89°F | 58°F | 73.3°F | 0.58 | 0.0 | 3 | 10 | <1 | 14 h 20 min |
| July | 88°F | 62°F | 74.8°F | 3.30 | 0.0 | 10 | 10 | <1 | 14 h 10 min |
| August | 86°F | 60°F | 72.8°F | 2.74 | 0.0 | 10 | 5 | <1 | 13 h 20 min |
| September | 81°F | 54°F | 67.1°F | 1.60 | 0.0 | 6 | 1 | <1 | 12 h 30 min |
| October | 72°F | 43°F | 57.4°F | 1.06 | 0.1 | 4 | <1 | 4 | 11 h 30 min |
| November | 61°F | 32°F | 46.5°F | 1.00 | 1.1 | 3 | <1 | 19 | 10 h 30 min |
| December | 52°F | 26°F | 39.1°F | 1.50 | 4.6 | 5 | <1 | 26 | 10 h |
| Year (annual) | 71°F | 43°F | 56.7°F | 15.21 | 13.1 | 59 | 27 | 125 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 12°C | −3°C | 4.2°C | 28 mm | 11 cm |
| February | 14°C | −2°C | 6.0°C | 27 mm | 5 cm |
| March | 17°C | 0°C | 8.9°C | 15 mm | 3 cm |
| April | 22°C | 4°C | 12.9°C | 8 mm | 1 cm |
| May | 26°C | 9°C | 17.6°C | 10 mm | 0 cm |
| June | 31°C | 15°C | 22.9°C | 15 mm | 0 cm |
| July | 31°C | 17°C | 23.8°C | 84 mm | 0 cm |
| August | 30°C | 16°C | 22.7°C | 70 mm | 0 cm |
| September | 27°C | 12°C | 19.5°C | 41 mm | 0 cm |
| October | 22°C | 6°C | 14.1°C | 27 mm | 0 cm |
| November | 16°C | 0°C | 8.1°C | 25 mm | 3 cm |
| December | 11°C | −3°C | 3.9°C | 38 mm | 12 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00299691; 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 White Signal?
Normal highs sit between 65°F and 85°F in April, May, September and October. Of those, April 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 USC00299691.
When is the last frost in White Signal?
In White Signal, the last spring frost (32°F) comes after April 23 in half of years and after May 10 in one year in ten; the first autumn frost comes before October 26 in half of years and before October 13 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
- April 231 year in 10 after May 10; 9 in 10 after April 4
- First autumn frost, half of years before
- October 261 year in 10 before October 13; 9 in 10 before November 8
NOAA puts the median frost-free season at 185 days, and the season without a hard freeze (28°F) at 211 days.
A hard freeze (28°F) comes after April 6 in half of springs and before November 4 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts White Signal in zone 7b in ZIP code 88061, the nearest ZIP area.
Frost dates for every NOAA station in New Mexico · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00299691; 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 White Signal?
In a normal year in White Signal, 27 days a year reach 90°F, 125 nights fall to 32°F or colder and 59 days bring measurable precipitation.
- Days at 90°F or more
- 27a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 125a normal year
- Days that stay below freezing
- 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 59a normal year
- Days with 1 inch of snow or more
- 5a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00299691.
How sunny is White Signal?
Over a year 89% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around White Signal, 5.8 kWh per square metre a day. May is the sunniest month (93%) and July the cloudiest (85%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 86% | 3.6 |
| February | 86% | 4.6 |
| March | 89% | 6.0 |
| April | 92% | 7.4 |
| May | 93% | 8.2 |
| June | 93% | 8.2 |
| July | 85% | 7.1 |
| August | 87% | 6.6 |
| September | 88% | 5.9 |
| October | 91% | 5.1 |
| November | 89% | 3.9 |
| December | 86% | 3.3 |
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 White Signal need?
A normal year in White Signal brings 3,982 heating degree days, 26% fewer than the median U.S. place (5,373), and 987 cooling degree days, 9% more than the median (908). Five months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,654 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 786 | 0 |
| February | 622 | 0 |
| March | 523 | 0 |
| April | 298 | 5 |
| May | 105 | 66 |
| June | 6 | 256 |
| July | 1 | 306 |
| August | 2 | 242 |
| September | 41 | 102 |
| October | 243 | 9 |
| November | 555 | 0 |
| December | 803 | 0 |
| Year (annual) | 3,982 | 987 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00299691. 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.
Has White Signal been warmer than normal lately?
2024 averaged 58.2°F, 1.5°F above the 1991-2020 normal of 56.7°F. 3 of the 4 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 57.5°F | +0.8°F | 13.05 | 14.5 |
| 2022 | 56.3°F | −0.4°F | 16.82 | 7.5 |
| 2023 | 57.4°F | +0.7°F | 7.09 | 13.8 |
| 2024 | 58.2°F | +1.5°F | 11.19 | 7.5 |
Source: observed years: ACIS, station USC00299691. A year counts only with all twelve months complete.
How does White Signal's climate compare?
White Signal is warmer than 60 of the other 97 places with their own NOAA record in New Mexico, and wetter than 61. Across the 7,247 U.S. stations with normals, its annual mean of 56.7°F is warmer than 66%.
In the Köppen classification computed from these normals, White Signal is BSk: cold semi-arid steppe. 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 White Signal's climate
What is the coldest month in White Signal?
December, with a normal high of 52°F and a normal low of 26°F. The warmest is July (88°F by day, 62°F at night).
Does it snow in White Signal?
Yes: 13 inches in a normal year, falling on 7 days with 0.1 inch or more, the most in December (4.6 inches).
What is the rainiest month in White Signal?
July, with 3.30 in of precipitation in a normal year; the driest is April with 0.30 in.
What plant hardiness zone is White Signal in?
The USDA's 2023 map puts White Signal in zone 7b in ZIP code 88061, the nearest ZIP area.
How late can frost come in White Signal?
In half of years the last 32°F night comes after April 23; in one year in ten it comes after May 10. Waiting until May 10 leaves about a one-in-ten chance of a later frost.
Nearby and next
- New Mexico climateThe statewide normals and every place in the state
- Fort Bayard, NM20 miles from this station, 59.6°F a year
- Cliff (11 mi SE), NM21 miles from this station, 55.6°F a year
- Redrock, NM24 miles from this station, 59.8°F a year
- Lordsburg, NM24 miles from this station, 61.3°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made