Hillsboro, NM Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Hillsboro's primary NOAA station, HILLSBORO.
The climate verdict for Hillsboro
Dryness leads the climate profile for Hillsboro, New Mexico, with 12.3 inches of precipitation a year. NOAA records an annual average of 58°F. Its climate comfort score of 73/100 (good) lands mid-pack nationally, exceeding 66% of station-mapped location scores.
- 58°F
- average temperature, NOAA 1991-2020 normal
- 73/100
- comfort score, above 66% of station-mapped location scores
- 12.3"
- annual precipitation · 3" snow
- 183 days
- growing season, frost-free days
Hillsboro: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00294009 · Hillsboro, NM 58°F mean · 12.3" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 58°F
- RANK-UPPER #4,734
- PHOTO-FINISH ≈ Waterville
- PRCP-DRY 12.3"
- SWING-MID 37°F
- COMF-MID 73/100
- LOAD-HEAT 3,677 HDD
- STN-1 USC00294009
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Waterville, NC ( -0.1 °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.
- Hillsboro (this station) 58°F
- Cold Clayton, GA 58°F
- Hot Jasper, GA 58°F
- Near Waterville, NC 58°F
- Near Georgetown Rang…, CA 58°F
Climate Living Index · Hillsboro
Hillsboro: 46/100 · grade D
Hillsboro publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Hillsboro, not an official NOAA rating. Rankings still use Comfort Score 73/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Snowfall burden | 2.7 inches/year | 74/100 · B |
| Annual temperature balance | 58.1°F · 9.4° from 67.5°F | 70/100 · B |
| Frost-free season | 183 days/year | 52/100 · D |
| Normal heat + freeze calendar | 181 calendar days | 24/100 · F |
| Precipitation balance | 12.3 in · 22.7 from 35 in | 19/100 · F |
Hillsboro · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Hillsboro'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
- 76.7°F
- Coldest month
- 39.3°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 Hillsboro sits across the climate record
Three NOAA fields for Hillsboro's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 69th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Drier than 89%
- Hillsboro's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 75%
- Warmest-to-coldest month gap for Hillsboro is compact versus 6,861 complete station-years.
How Hillsboro compares across U.S. station-mapped locations
Hillsboro's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
73 Top 34% score exceeds 66% 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%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). This entry sits in this band.
- 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
Hillsboro's measured station temperature trend
MethodologyAcross 55 complete annual observations from 1956 to 2025, HILLSBORO warmed at a fitted rate of 0.09°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Hillsboro primary station fitted change +0.09 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 55°F (13°C) | 25°F (-4°C) | 40°F (4°C) | 0.6" | 1.2" | 25.6 | 0.0 |
| February | 60°F (16°C) | 28°F (-2°C) | 44°F (7°C) | 0.4" | 0.3" | 19.7 | 0.0 |
| March | 67°F (20°C) | 34°F (1°C) | 51°F (10°C) | 0.3" | 0.0" | 13.5 | 0.0 |
| April | 75°F (24°C) | 40°F (5°C) | 58°F (14°C) | 0.3" | 0.0" | 4.2 | 0.4 |
| May | 83°F (29°C) | 48°F (9°C) | 66°F (19°C) | 0.7" | 0.0" | 0.3 | 6.5 |
| June | 93°F (34°C) | 56°F (13°C) | 74°F (24°C) | 0.8" | 0.0" | 0.0 | 22.3 |
| July | 92°F (33°C) | 62°F (17°C) | 77°F (25°C) | 2.1" | 0.0" | 0.0 | 22.1 |
| August | 89°F (32°C) | 60°F (16°C) | 75°F (24°C) | 2.4" | 0.0" | 0.0 | 17.4 |
| September | 84°F (29°C) | 53°F (12°C) | 69°F (20°C) | 2.0" | 0.0" | 0.0 | 6.2 |
| October | 75°F (24°C) | 42°F (5°C) | 58°F (15°C) | 1.0" | 0.3" | 2.6 | 0.3 |
| November | 63°F (17°C) | 31°F (0°C) | 47°F (8°C) | 0.7" | 0.3" | 16.5 | 0.0 |
| December | 54°F (12°C) | 25°F (-4°C) | 39°F (4°C) | 0.9" | 0.6" | 25.7 | 0.0 |
The year, day by day
Hillsboro works both ends of the calendar. Normal highs climb to 94°F by June 22 and hold at or above 90°F on 66 dates, then normal lows drop to freezing or below on 115 dates, bottoming at 24°F around December 22.
When the heat sits
Normal highs reach 90°F from June 3 through August 7, covering 66 dates. The broader mild season, normal highs of 70°F or more, runs March 25 to October 30.
This counts calendar dates whose 1991–2020 normal high reaches 90°F. It is a smaller number than the 90°F+ day counts in the monthly table above, which measure how often the threshold was actually crossed in a typical year. A date can average 88°F and still exceed 90°F in half of all years.
The freezing stretch
The normal low stays at or below 32°F into March 6, then returns to freezing around November 13, covering 115 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 July 28, when 33% of years recorded at least a hundredth of an inch. The driest is April 9 at 5%. Summed across the calendar, that is about 53 wet dates a year.
The widest day
June 4 carries the biggest normal gap between afternoon and dawn, 37°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Hillsboro.
Where Hillsboro Stands Nationally
Day-to-night contrast is extreme by national standards — the widest normal daily swing reaches about 37°F, sharper than nine in ten ranked stations see.
Heat is a defining feature of the normals calendar — the normal daily high reaches 90°F on roughly 66 days a year, more than four out of five ranked stations record.
Hillsboro earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 1.2"
2.8 days with precipitation
Snow: 0.3"
2.3 days with precipitation
2.0 days with precipitation
1.7 days with precipitation
3.0 days with precipitation
4.0 days with precipitation
10.1 days with precipitation
9.7 days with precipitation
6.6 days with precipitation
Snow: 0.3"
4.1 days with precipitation
Snow: 0.3"
2.7 days with precipitation
Snow: 0.6"
3.5 days with precipitation
Hillsboro runs a summer-peaked wet season
43% of Hillsboro'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 2.4", on a 37.4°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, September, taking 53% of the annual total between them.
- Driest month: March at 0.3".
- Winter share: 16% 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.
How Hillsboro's precipitation splits across the calendar
About 53 days a year record measurable precipitation here, carrying 12.3" between them, or roughly 0.23 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Snow reaches Hillsboro, but rarely amounts to much
The normals record 2.7 inches of snow a year here, most likely in January. That is a real but marginal amount: enough that snow is part of the local record, not enough to define the winter.
A figure in this range usually reflects a handful of events that melt quickly rather than a season of accumulation; about 1 days a year record any measurable snow at all.
NOAA 1991-2020 normals. An average across thirty years can smooth away a single heavy winter, so a small annual figure does not mean a significant snowfall is impossible.
Frost Dates & Growing Season
First Fall Freeze
October 23
50% probability date
Last Spring Freeze
April 23
50% probability date
Growing Season
183 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,677
Higher = more heating needed
Cooling Degree Days
1,173
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside NM closest to Hillsboro 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 (58°F here).
- Cairo, IL 58°F · 0.0°F off
- Dickson, TN 58°F · 0.0°F off
- Henderson, TN 58°F · 0.0°F off
- Marble Hill, MO 58°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (12.3" here), excluding temperature-peer places.
- Chester, MT 12.3" · 0.0" off
- Odessa, TX 12.3" · 0.0" off
- Chicken, AK 12.3" · 0.0" off
- Turner, MT 12.3" · 0.0" off
Scarce-water calendar
Where Hillsboro's limited precipitation lands
heating led · dry · mid swing
Hillsboro's energy balance leans toward cold weather: 3,677 annual heating degree days against 1,173 for cooling. Its 37.4°F seasonal range still makes the monthly rows more useful than the annual average alone.
Hillsboro's frost-free season lasts about 183 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and December mark the typical warm and cold ends of the calendar in Hillsboro's middle-range seasonal profile. The measured spread is 37.4°F. The annual average is 58°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Hillsboro's cold-season load does not imply a wet climate. Annual precipitation is 12.3 inches, which places the station in PlainClimate's dry range. Annual snowfall totals 2.7 inches. The snowfall and rainfall fields should be read separately rather than inferred from temperature.
Hillsboro wettest normal
August
August concentrates the scarce annual total (12.3 inches).
Hillsboro driest normal
March
March is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Hillsboro's climate
How dry is Hillsboro? ▼
How many days above 90°F does Hillsboro get? ▼
How much energy does heating and cooling require in Hillsboro? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Hillsboro's primary station: HILLSBORO (USC00294009). 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 a census-designated place (GEOID 3532380), not an incorporated municipality. Match rule for Hillsboro: 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 Hillsboro 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.