Glenwood, New Mexico climate: Normal weather by month, frost dates and records
Glenwood's normal year runs from 23°F December nights to 91°F July afternoons, with 16.6 inches of precipitation and 2 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 13.6°C, December lows of −5°C, July highs of 33°C, 423 mm of precipitation a year.
- NOAA stationGlenwood
- Station IDUSC00293577
- Location33.32°N 108.88°W
- Elevation4,725 ft (1,440 m)
- Population (census place)161
On October 23, the normal high in Glenwood is 74°F and the normal low 36°F, and the chance of measurable rain or snow is 9%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Glenwood.
- Jan 57° 23°
- Feb 61° 26°
- Mar 67° 30°
- Apr 74° 34°
- May 82° 41°
- Jun 91° 50°
- Jul 91° 58°
- Aug 89° 58°
- Sep 85° 50°
- Oct 76° 39°
- Nov 65° 29°
- Dec 57° 23°
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 Glenwood each month?
July is the warmest month, with normal highs of 91°F; December the coldest, with normal lows of 23°F. The most precipitation falls in July (2.99 in), the least in April (0.35 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 57°F | 23°F | 40.3°F | 1.37 | 0.9 | 4 | <1 | 27 | 10 h 10 min |
| February | 61°F | 26°F | 43.2°F | 1.25 | 0.4 | 4 | <1 | 22 | 11 h |
| March | 67°F | 30°F | 48.4°F | 0.88 | 0.2 | 4 | <1 | 20 | 12 h |
| April | 74°F | 34°F | 54.1°F | 0.35 | 0.0 | 2 | <1 | 10 | 13 h |
| May | 82°F | 41°F | 61.5°F | 0.66 | 0.0 | 2 | 4 | 1 | 13 h 50 min |
| June | 91°F | 50°F | 70.7°F | 0.57 | 0.0 | 2 | 21 | <1 | 14 h 20 min |
| July | 91°F | 58°F | 74.6°F | 2.99 | 0.0 | 11 | 20 | <1 | 14 h 10 min |
| August | 89°F | 58°F | 73.1°F | 2.83 | 0.0 | 10 | 15 | <1 | 13 h 30 min |
| September | 85°F | 50°F | 67.5°F | 1.99 | 0.0 | 6 | 5 | <1 | 12 h 30 min |
| October | 76°F | 39°F | 57.6°F | 1.26 | 0.0 | 3 | <1 | 4 | 11 h 20 min |
| November | 65°F | 29°F | 47.0°F | 1.07 | 0.1 | 3 | <1 | 20 | 10 h 30 min |
| December | 57°F | 23°F | 40.0°F | 1.42 | 0.2 | 5 | <1 | 27 | 10 h |
| Year (annual) | 75°F | 38°F | 56.5°F | 16.64 | 1.8 | 55 | 65 | 130 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | 14°C | −5°C | 4.6°C | 35 mm | 2 cm |
| February | 16°C | −4°C | 6.2°C | 32 mm | 1 cm |
| March | 20°C | −1°C | 9.1°C | 22 mm | 1 cm |
| April | 23°C | 1°C | 12.3°C | 9 mm | 0 cm |
| May | 28°C | 5°C | 16.4°C | 17 mm | 0 cm |
| June | 33°C | 10°C | 21.5°C | 14 mm | 0 cm |
| July | 33°C | 15°C | 23.7°C | 76 mm | 0 cm |
| August | 32°C | 14°C | 22.8°C | 72 mm | 0 cm |
| September | 29°C | 10°C | 19.7°C | 51 mm | 0 cm |
| October | 25°C | 4°C | 14.2°C | 32 mm | 0 cm |
| November | 19°C | −2°C | 8.3°C | 27 mm | 0 cm |
| December | 14°C | −5°C | 4.4°C | 36 mm | 1 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00293577; 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 Glenwood?
Normal highs sit between 65°F and 85°F in March, April, May, September, October and November. Of those, May 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 USC00293577.
When is the last frost in Glenwood?
In Glenwood, the last spring frost (32°F) comes after May 6 in half of years and after May 20 in one year in ten; the first autumn frost comes before October 18 in half of years and before October 7 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 61 year in 10 after May 20; 9 in 10 after April 21
- First autumn frost, half of years before
- October 181 year in 10 before October 7; 9 in 10 before October 30
NOAA puts the median frost-free season at 164 days, and the season without a hard freeze (28°F) at 188 days.
A hard freeze (28°F) comes after April 21 in half of springs and before October 28 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Glenwood in zone 7b in ZIP code 88025, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Glenwood's NOAA station is in zone 8a: the coldest night of a typical year reaches 11°F (17 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 New Mexico · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00293577; 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 Glenwood?
In a normal year in Glenwood, 65 days a year reach 90°F (5 of them 100°F or more), 130 nights fall to 32°F or colder and 55 days bring measurable precipitation.
- Days at 90°F or more
- 65a normal year
- Days at 100°F or more
- 5a normal year
- Nights at 32°F or colder
- 130a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 55a normal year
- Days with 1 inch of snow or more
- 1a normal year
The highest temperature in this station's record (since 1941) is 108°F, on June 27, 1994; the lowest is −4°F, on January 11, 1962.
The wettest calendar year on that record is 1992, with 25.57 in; the snowiest season is 1938–39, with 16.3 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00293577; records: ACIS (NOAA Regional Climate Centers), station USC00293577. Records use complete months only; a month missing more than three days is left out.
How sunny is Glenwood?
Over a year 84% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Glenwood, 5.5 kWh per square metre a day. May is the sunniest month (89%) and July the cloudiest (74%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 83% | 3.5 |
| February | 83% | 4.4 |
| March | 86% | 5.8 |
| April | 89% | 7.2 |
| May | 89% | 7.9 |
| June | 88% | 7.8 |
| July | 74% | 6.2 |
| August | 77% | 6.0 |
| September | 83% | 5.6 |
| October | 89% | 4.9 |
| November | 87% | 3.8 |
| December | 83% | 3.1 |
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 Glenwood need?
A normal year in Glenwood brings 3,937 heating degree days, 27% fewer than the median U.S. place (5,373), and 864 cooling degree days, 5% fewer than the median (908). Six months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 3,460 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 766 | 0 |
| February | 609 | 0 |
| March | 513 | 0 |
| April | 326 | 1 |
| May | 138 | 29 |
| June | 11 | 180 |
| July | 0 | 296 |
| August | 0 | 253 |
| September | 25 | 100 |
| October | 234 | 5 |
| November | 540 | 0 |
| December | 775 | 0 |
| Year (annual) | 3,937 | 864 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00293577. 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 Glenwood's climate compare?
Glenwood is warmer than 59 of the other 97 places with their own NOAA record in New Mexico, and wetter than 75. Across the 7,247 U.S. stations with normals, its annual mean of 56.5°F is warmer than 65%.
In the Köppen classification computed from these normals, Glenwood is Csa: temperate, dry-summer, hot 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 Glenwood 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.
- Pleasanton, NM363 people · 3 mi S
- Alma, NM31 people · 4 mi N
- Mogollon, NM7 people · 7 mi NE
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 Glenwood's climate
What is the coldest month in Glenwood?
December, with a normal high of 57°F and a normal low of 23°F. The warmest is July (91°F by day, 58°F at night).
Does it snow in Glenwood?
Yes: 2 inches in a normal year, falling on 2 days with 0.1 inch or more, the most in January (0.9 inches).
What is the rainiest month in Glenwood?
July, with 2.99 in of precipitation in a normal year; the driest is April with 0.35 in.
What plant hardiness zone is Glenwood in?
The USDA's 2023 map puts Glenwood in zone 7b in ZIP code 88025, the nearest ZIP area. By the same method at Glenwood's NOAA station, the coldest night of a typical year reaches 11°F (17 years, 1991-2020): zone 8a.
How late can frost come in Glenwood?
In half of years the last 32°F night comes after May 6; in one year in ten it comes after May 20. Waiting until May 20 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
- Reserve, NM28 miles from this station, 53.7°F a year
- Clifton, AZ31 miles from this station, 67.3°F a year
- Luna, NM35 miles from this station, 48.2°F a year
- Alpine, AZ40 miles from this station, 45.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made