Roy, NM Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Roy's primary NOAA station, ROY.
The climate verdict for Roy
Dryness leads the climate profile for Roy, New Mexico, with 16.4 inches of precipitation a year. NOAA records an annual average of 53°F. At 54/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 31% of scores.
- 53°F
- average temperature, NOAA 1991-2020 normal
- 54/100
- comfort score, above 31% of station-mapped location scores
- 16.4"
- annual precipitation · 19" snow
- 168 days
- growing season, frost-free days
Roy: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00297638 · Roy, NM 53°F mean · 16.4" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 53°F
- RANK-MID #3,636
- PHOTO-FINISH ≈ Springer
- PRCP-DRY 16.4"
- SWING-MID 38°F
- COMF-LOW 54/100
- LOAD-HEAT 5,083 HDD
- STN-1 USC00297638
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Springer, NM (+ 0 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every NM station list.
- Roy (this station) 53°F
- Cold Pulaski, VA 53°F
- Hot Radford, VA 53°F
- Near Springer, NM 53°F
- Near Montague Siskiy…, CA 53°F
Climate Living Index · Roy
Roy: 44/100 · grade D
Roy publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Roy, not an official NOAA rating. Rankings still use Comfort Score 54/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 52.9°F · 14.6° from 67.5°F | 52/100 · D |
| Snowfall burden | 19.3 inches/year | 50/100 · D |
| Normal heat + freeze calendar | 156 calendar days | 42/100 · D |
| Frost-free season | 168 days/year | 40/100 · D |
| Precipitation balance | 16.4 in · 18.6 from 35 in | 33/100 · F |
Roy · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Roy's normals sit in a dry climate class: BSk
Precipitation is low relative to temperature but above true desert thresholds: cold semi-arid steppe (BSk). Class BSk is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically cold semi-arid steppe.
- Köppen code
- BSk
- Group
- Dry (arid or semi-arid)
- Warmest month
- 72.8°F
- Coldest month
- 34.4°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · heating-led station
Where Roy sits across the climate record
Three NOAA fields for Roy's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 53rd percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Drier than 79%
- Roy's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 71%
- Warmest-to-coldest month gap for Roy is compact versus 6,861 complete station-years.
How Roy compares across U.S. station-mapped locations
Roy's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
54 31st percentile score exceeds 31% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). This entry sits in this band.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 48°F (9°C) | 21°F (-6°C) | 34°F (1°C) | 0.6" | 4.5" | 28.3 | 0.0 |
| February | 52°F (11°C) | 23°F (-5°C) | 37°F (3°C) | 0.5" | 3.0" | 23.9 | 0.0 |
| March | 59°F (15°C) | 28°F (-2°C) | 44°F (7°C) | 0.8" | 4.4" | 20.8 | 0.0 |
| April | 66°F (19°C) | 35°F (1°C) | 50°F (10°C) | 0.9" | 0.5" | 8.5 | 0.0 |
| May | 76°F (24°C) | 45°F (7°C) | 61°F (16°C) | 1.3" | 0.2" | 0.9 | 1.0 |
| June | 85°F (29°C) | 54°F (12°C) | 69°F (21°C) | 2.1" | 0.0" | 0.0 | 6.7 |
| July | 88°F (31°C) | 58°F (15°C) | 73°F (23°C) | 3.1" | 0.0" | 0.0 | 9.3 |
| August | 85°F (30°C) | 57°F (14°C) | 71°F (22°C) | 3.3" | 0.0" | 0.0 | 4.9 |
| September | 79°F (26°C) | 51°F (11°C) | 65°F (18°C) | 1.9" | 0.0" | 0.0 | 1.7 |
| October | 69°F (21°C) | 38°F (3°C) | 54°F (12°C) | 1.1" | 0.2" | 5.0 | 0.0 |
| November | 57°F (14°C) | 28°F (-2°C) | 43°F (6°C) | 0.4" | 2.1" | 20.6 | 0.0 |
| December | 47°F (9°C) | 21°F (-6°C) | 34°F (1°C) | 0.6" | 4.4" | 27.6 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 88°F around July 10, short of 90°F on every date, while 156 dates carry a normal low at or below freezing, the coldest 20°F near January 1.
The freezing stretch
The normal low stays at or below 32°F into April 5, then returns to freezing around November 2, covering 156 dates in all.
Derived from the normal daily minimum. This is a different measure from the 50%-probability frost dates shown elsewhere on this page, which come from NOAA’s frost product.
Where the wet dates fall
The likeliest wet date is August 3, when 26% of years recorded at least a hundredth of an inch. The driest is January 16 at 5%. Summed across the calendar, that is about 43 wet dates a year.
The widest day
April 10 carries the biggest normal gap between afternoon and dawn, 32°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Roy.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 4.5"
1.7 days with precipitation
Snow: 3.0"
1.6 days with precipitation
Snow: 4.4"
2.4 days with precipitation
Snow: 0.5"
2.8 days with precipitation
Snow: 0.2"
3.5 days with precipitation
5.3 days with precipitation
7.2 days with precipitation
7.6 days with precipitation
4.1 days with precipitation
Snow: 0.2"
2.5 days with precipitation
Snow: 2.1"
1.7 days with precipitation
Snow: 4.4"
2.4 days with precipitation
Roy runs a summer-peaked wet season
52% of Roy's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is August at 3.3", on a 38.4°F seasonal spread. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: August, July, June, taking 52% of the annual total between them.
- Driest month: November at 0.4".
- Winter share: 10% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
When it rains in Roy, it arrives in quantity
16.3" of precipitation falls across only about 43 wet days here, averaging 0.38 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 43 a year, 12% of all days
- Average depth per wet day
- 0.38 inches
- Most wet days
- August, about 8
- Fewest wet days
- February, about 2
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Winter brings real snow to Roy
Roy averages 19.3 inches of snowfall a year, with January the snowiest month on the normals, spread across roughly 7 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 19.3 inches of depth.
- Days recording measurable snow: about 7 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 12% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
October 15
50% probability date
Last Spring Freeze
April 30
50% probability date
Growing Season
168 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,083
Higher = more heating needed
Cooling Degree Days
702
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside NM closest to Roy on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (53°F here).
- Chambersburg, PA 53°F · 0.0°F off
- Concordia, KS 53°F · 0.0°F off
- Harrisville, WV 53°F · 0.0°F off
- Langlois, OR 53°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (16.4" here), excluding temperature-peer places.
- Cheyenne Wells, CO 16.4" · 0.0" off
- Hinsdale, MT 16.3" · 0.0" off
- Coalville, UT 16.4" · 0.0" off
- Colstrip, MT 16.4" · 0.0" off
Snow and freeze rhythm
When cold and snow define Roy
heating led · dry · mid swing
Roy's energy balance leans toward cold weather: 5,083 annual heating degree days against 702 for cooling. Its 38.4°F seasonal range still makes the monthly rows more useful than the annual average alone.
Roy's frost-free season lasts about 168 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Roy coldest normal
January
The monthly mean of 34°F (1°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. Roy typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Roy snow peak
January
Roy averages 19.3 inches of snow a year, with January the snowiest month on the normals.
Questions about Roy's climate
How much snow does Roy get? ▼
How cold does Roy get in winter? ▼
How much energy does heating and cooling require in Roy? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Roy's primary station: ROY (USC00297638). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as an incorporated place (GEOID 3565070). Match rule for Roy: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Roy comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.