Organ Pipe Cactus National Monument, AZ Climate: Temperature & Rain by Month
Explore NOAA NCEI's 1991–2020 climate normals → and a clearly labeled PlainClimate comfort calculation
30-year climate normals (1991-2020) from Organ Pipe Cactus National Monument's primary NOAA station, ORGAN PIPE CACTUS NM.
The climate verdict for Organ Pipe Cactus National Monument
Organ Pipe Cactus National Monument, Arizona is cooling-led and dry. Its 9.3 inches of annual precipitation pairs with an annual average of 72°F. It scores 80/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 76% of them.
- 72°F
- average temperature, NOAA 1991-2020 normal
- 80/100
- comfort score, above 76% of station-mapped location scores
- 9.3"
- yearly precipitation total
- 314 days
- frost-free days per growing season
Organ Pipe Cactus National Monument: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00026132 · Organ Pipe Cactus National Monument, AZ 72°F mean · 9.3" precip
TEMP-HOT · RANK-WARM · PHOTO-FINISH · PRCP-ARID · SWING-MID · COMF-TOP · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-HOT 72°F
- RANK-WARM #6,655
- PHOTO-FINISH ≈ Tilden
- PRCP-ARID 9.3"
- SWING-MID 34°F
- COMF-TOP 80/100
- LOAD-COOL 3,630 CDD
- STN-1 USC00026132
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Tilden, TX ( -0.2 °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 AZ station list.
- Organ Pipe Cact… (this station) 72°F
- Cold Tilden, TX 72°F
- Hot Falfurrias, TX 72°F
- Near Encinal, TX 72°F
- Near Freer, TX 72°F
Climate Living Index · Organ Pipe Cactus National Monument
Organ Pipe Cactus National Monument: 60/100 · grade C
Organ Pipe Cactus National Monument publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Organ Pipe Cactus National Monument, not an official NOAA rating. Rankings still use Comfort Score 80/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 314 days/year | 100/100 · A |
| Snowfall burden | 0.0 inches/year | 90/100 · A |
| Annual temperature balance | 72.0°F · 4.5° from 67.5°F | 86/100 · A |
| Normal heat + freeze calendar | 164 calendar days | 36/100 · F |
| Precipitation balance | 9.3 in · 25.7 from 35 in | 10/100 · F |
Organ Pipe Cactus National Monument · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Organ Pipe Cactus National Monument's normals sit in a dry climate class: BWh
Annual precipitation falls well below the aridity threshold for this temperature regime, so the normals classify as hot desert (BWh). Class BWh is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically hot desert.
- Köppen code
- BWh
- Group
- Dry (arid or semi-arid)
- Warmest month
- 89.7°F
- Coldest month
- 55.4°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 · cooling-led station
Where Organ Pipe Cactus National Monument sits across the climate record
Three NOAA fields for Organ Pipe Cactus National Monument's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 3% warmest
- Among 6,861 stations, Organ Pipe Cactus National Monument sits in the warmer third of annual means.
- Annual precipitation
- Drier than 95%
- Organ Pipe Cactus National Monument's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 84%
- Warmest-to-coldest month gap for Organ Pipe Cactus National Monument is compact versus 6,861 complete station-years.
How Organ Pipe Cactus National Monument compares across U.S. station-mapped locations
Organ Pipe Cactus National Monument's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
80 Top 24% score exceeds 76% 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%). Below this entry.
- 80–90: 921 station-mapped locations (15%). This entry sits in this band.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Organ Pipe Cactus National Monument's measured station temperature trend
MethodologyAcross 48 complete annual observations from 1949 to 2023, ORGAN PIPE CACTUS NM warmed at a fitted rate of 0.29°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Organ Pipe Cactus National Monument primary station fitted change +0.29 °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 | 71°F (22°C) | 41°F (5°C) | 56°F (13°C) | 1.0" | 0.0" | 2.9 | 0.1 |
| February | 73°F (23°C) | 43°F (6°C) | 58°F (14°C) | 0.9" | 0.0" | 1.5 | 0.2 |
| March | 79°F (26°C) | 47°F (8°C) | 63°F (17°C) | 0.8" | 0.0" | 0.2 | 3.1 |
| April | 86°F (30°C) | 52°F (11°C) | 69°F (20°C) | 0.3" | 0.0" | 0.0 | 9.8 |
| May | 93°F (34°C) | 59°F (15°C) | 76°F (25°C) | 0.2" | 0.0" | 0.0 | 22.4 |
| June | 102°F (39°C) | 68°F (20°C) | 85°F (29°C) | 0.1" | 0.0" | 0.0 | 29.1 |
| July | 104°F (40°C) | 76°F (24°C) | 90°F (32°C) | 1.3" | 0.0" | 0.0 | 31.0 |
| August | 103°F (40°C) | 75°F (24°C) | 89°F (32°C) | 1.8" | 0.0" | 0.0 | 30.6 |
| September | 99°F (37°C) | 70°F (21°C) | 85°F (29°C) | 0.8" | 0.0" | 0.0 | 28.8 |
| October | 90°F (32°C) | 59°F (15°C) | 74°F (24°C) | 0.6" | 0.0" | 0.0 | 17.1 |
| November | 79°F (26°C) | 48°F (9°C) | 63°F (17°C) | 0.4" | 0.0" | 0.3 | 2.8 |
| December | 70°F (21°C) | 41°F (5°C) | 55°F (13°C) | 1.1" | 0.0" | 3.2 | 0.0 |
The year, day by day
The year in Organ Pipe Cactus National Monument runs from a mild 40°F around December 20 to 104°F at the peak near July 6, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from May 6 through October 16, covering 164 dates. The broader mild season, normal highs of 70°F or more, runs January 8 to December 11.
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.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 40°F around December 20.
Where the wet dates fall
The likeliest wet date is August 13, when 19% of years recorded at least a hundredth of an inch. The driest is June 2 at 1%. Summed across the calendar, that is about 34 wet dates a year.
The widest day
June 4 carries the biggest normal gap between afternoon and dawn, 35°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Organ Pipe Cactus National Monument.
Where Organ Pipe Cactus National Monument Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 164 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
Aridity defines the water calendar: about 9 inches in a normal year lands this among the driest tenth of ranked stations.
Organ Pipe Cactus National Monument 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
3.2 days with precipitation
3.7 days with precipitation
3.0 days with precipitation
1.1 days with precipitation
0.6 days with precipitation
0.5 days with precipitation
4.3 days with precipitation
6.0 days with precipitation
3.0 days with precipitation
1.8 days with precipitation
2.1 days with precipitation
4.0 days with precipitation
Organ Pipe Cactus National Monument runs a summer-peaked wet season
35% of Organ Pipe Cactus National Monument'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 1.8", on a 34.3°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, December, taking 46% of the annual total between them.
- Driest month: June at 0.1".
- Winter share: 32% 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 Organ Pipe Cactus National Monument's precipitation splits across the calendar
About 33 days a year record measurable precipitation here, carrying 9.3" between them, or roughly 0.28 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.
Organ Pipe Cactus National Monument's record shows no measurable snowfall
This station measured snowfall across the 1991-2020 period and recorded none: the annual normal is 0.0 inches. That is a measured zero rather than missing data, which is a meaningful distinction here , most stations in the database simply do not report snow at all, and those pages say nothing about it.
A thirty-year normal of zero describes the typical year at this station. It is not a claim that snow has never fallen in the area.
Frost Dates & Growing Season
First Fall Freeze
December 15
50% probability date
Last Spring Freeze
February 4
50% probability date
Growing Season
314 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,055
Higher = more heating needed
Cooling Degree Days
3,630
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside AZ closest to Organ Pipe Cactus National Monument 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 (72°F here).
- Benavides, TX 72°F · 0.1°F off
- Fort Green, FL 72°F · 0.1°F off
- Sarita, TX 72°F · 0.1°F off
- Arcadia, FL 72°F · 0.2°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (9.3" here), excluding temperature-peer places.
- Arlington, OR 9.3" · 0.0" off
- St George, UT 9.3" · 0.0" off
- Terlingua, TX 9.3" · 0.0" off
- Los Lunas, NM 9.2" · 0.0" off
Scarce-water calendar
Where Organ Pipe Cactus National Monument's limited precipitation lands
cooling led · dry · mid swing
Air-conditioning demand is the clearest thermal signal here. Organ Pipe Cactus National Monument accumulates 3,630 cooling degree days, more than twice its 1,055 heating total; the monthly table shows when that imbalance builds rather than treating it as a year-round condition.
Heat demand sits beside limited local precipitation: Organ Pipe Cactus National Monument receives 9.3 inches in a normal year, inside PlainClimate's dry range. Recorded annual snowfall is negligible. Month-level precipitation is the useful check on when that small annual total arrives.
July and December mark the typical warm and cold ends of the calendar in Organ Pipe Cactus National Monument's middle-range seasonal profile. The measured spread is 34.3°F. The annual average is 72°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Organ Pipe Cactus National Monument has a long frost-free window of roughly 314 days, but the dry annual profile is a separate constraint. Growing-season length says when freezes are unlikely, not whether rainfall is sufficient.
Organ Pipe Cactus National Monument wettest normal
August
August concentrates the scarce annual total (9.3 inches).
Organ Pipe Cactus National Monument driest normal
June
June is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Organ Pipe Cactus National Monument's climate
How dry is Organ Pipe Cactus National Monument? ▼
How many days above 90°F does Organ Pipe Cactus National Monument get? ▼
How much energy does heating and cooling require in Organ Pipe Cactus National Monument? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Organ Pipe Cactus National Monument's primary station: ORGAN PIPE CACTUS NM (USC00026132). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. No exact Gazetteer row for Organ Pipe Cactus National Monument; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Organ Pipe Cactus National Monument 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.