Crystal City, TX 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 Crystal City's primary NOAA station, CRYSTAL CITY.
The climate verdict for Crystal City
Crystal City, Texas is cooling-led and dry. Its 19.5 inches of annual precipitation pairs with an annual average of 73°F. It scores 90/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 91% of them.
- 73°F
- annual average temperature (NOAA normal)
- 90/100
- comfort score, above 91% of station-mapped location scores
- 19.5"
- annual precipitation
- 303 days
- frost-free growing season
Crystal City: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00412160 · Crystal City, TX 73°F mean · 19.5" precip
TEMP-HOT · RANK-WARM · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-TOP · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-HOT 73°F
- RANK-WARM #6,655
- PHOTO-FINISH ≈ Castle Hot Spri…
- PRCP-DRY 19.5"
- SWING-MID 32°F
- COMF-TOP 90/100
- LOAD-COOL 3,838 CDD
- STN-1 USC00412160
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Castle Hot Springs, AZ ( -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 TX station list.
- Crystal City (this station) 73°F
- Cold Dateland Whitew…, AZ 73°F
- Hot Cotulla La Sall…, TX 73°F
- Near Castle Hot Spri…, AZ 73°F
- Near Imperial, CA 73°F
Crystal City sits in Texas, the #4 hottest U.S. state at 66.2°F statewide annual average - see all 50 hottest states ranked by NOAA normals
Climate Living Index · Crystal City
Crystal City: 71/100 · grade B
Crystal City publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Crystal City, not an official NOAA rating. Rankings still use Comfort Score 90/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 303 days/year | 100/100 · A |
| Snowfall burden | 0.0 inches/year | 90/100 · A |
| Annual temperature balance | 72.7°F · 5.2° from 67.5°F | 84/100 · B |
| Normal heat + freeze calendar | 139 calendar days | 53/100 · D |
| Precipitation balance | 19.5 in · 15.5 from 35 in | 45/100 · D |
Crystal City · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Crystal City's normals sit in a dry climate class: BSh
Precipitation is low relative to temperature but above true desert thresholds: hot semi-arid steppe (BSh). Class BSh is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically hot semi-arid steppe.
- Köppen code
- BSh
- Group
- Dry (arid or semi-arid)
- Warmest month
- 87.4°F
- Coldest month
- 55.3°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 · cooling-led station
Where Crystal City sits across the climate record
Three NOAA fields for Crystal City'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, Crystal City sits in the warmer third of annual means.
- Annual precipitation
- Drier than 73%
- Crystal City's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 87%
- Warmest-to-coldest month gap for Crystal City is compact versus 6,861 complete station-years.
How Crystal City compares across U.S. station-mapped locations
Crystal City's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
90 Top 9% score exceeds 91% 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%). Below this entry.
- 90–100: 564 station-mapped locations (9%). This entry sits in this band.
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 | 67°F (19°C) | 44°F (7°C) | 55°F (13°C) | 1.0" | 0.0" | 2.7 | 0.0 |
| February | 72°F (22°C) | 49°F (9°C) | 60°F (16°C) | 0.8" | 0.0" | 1.0 | 0.6 |
| March | 79°F (26°C) | 55°F (13°C) | 67°F (19°C) | 1.7" | 0.0" | 0.6 | 3.2 |
| April | 86°F (30°C) | 62°F (17°C) | 74°F (23°C) | 1.3" | 0.0" | 0.0 | 9.6 |
| May | 91°F (33°C) | 70°F (21°C) | 80°F (27°C) | 2.2" | 0.0" | 0.0 | 20.4 |
| June | 96°F (36°C) | 75°F (24°C) | 86°F (30°C) | 2.1" | 0.0" | 0.0 | 27.5 |
| July | 97°F (36°C) | 76°F (24°C) | 86°F (30°C) | 2.1" | 0.0" | 0.0 | 28.8 |
| August | 99°F (37°C) | 76°F (24°C) | 87°F (31°C) | 1.9" | 0.0" | 0.0 | 29.6 |
| September | 93°F (34°C) | 72°F (22°C) | 82°F (28°C) | 2.4" | 0.0" | 0.0 | 23.9 |
| October | 85°F (29°C) | 64°F (18°C) | 74°F (24°C) | 2.0" | 0.0" | 0.1 | 9.7 |
| November | 74°F (23°C) | 53°F (12°C) | 64°F (18°C) | 1.0" | 0.0" | 0.5 | 0.3 |
| December | 68°F (20°C) | 45°F (7°C) | 56°F (14°C) | 0.8" | 0.0" | 2.9 | 0.0 |
The year, day by day
The year in Crystal City runs from a mild 43°F around January 2 to 100°F at the peak near August 10, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from May 12 through September 27, covering 139 dates. The broader mild season, normal highs of 70°F or more, runs February 5 to November 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.
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 43°F around January 2.
Where the wet dates fall
The likeliest wet date is January 14, when 20% of years recorded at least a hundredth of an inch. The driest is July 31 at 12%. Summed across the calendar, that is about 60 wet dates a year.
The widest day
April 8 carries the biggest normal gap between afternoon and dawn, 25°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Crystal City.
Where Crystal City Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 139 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
Crystal City earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall and snowfall
6.3 days with precipitation
5.1 days with precipitation
5.3 days with precipitation
4.6 days with precipitation
5.3 days with precipitation
4.7 days with precipitation
4.6 days with precipitation
4.1 days with precipitation
5.5 days with precipitation
4.7 days with precipitation
4.6 days with precipitation
5.2 days with precipitation
Crystal City spreads its precipitation across the year
Neither half of the year dominates here: June through August take 31% of the annual total and December through February 14%, with neither reaching the 35% that would mark a distinct wet season. Crystal City has no dry season to plan around, though it does carry a 32.1°F seasonal spread.
The gap between the wettest and driest month still matters: September averages 2.4" and December 0.8". The three wettest months together take 35% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
How Crystal City's precipitation splits across the calendar
About 60 days a year record measurable precipitation here, carrying 19.5" between them, or roughly 0.32 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.
Crystal City'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 10
50% probability date
Last Spring Freeze
February 10
50% probability date
Growing Season
303 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
990
Higher = more heating needed
Cooling Degree Days
3,838
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside TX closest to Crystal City 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 (73°F here).
- Leesburg, FL 73°F · 0.1°F off
- Sebring, FL 73°F · 0.1°F off
- Palm Bay, FL 73°F · 0.1°F off
- Sanford, FL 73°F · 0.1°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (19.5" here), excluding temperature-peer places.
- Zortman, MT 19.5" · 0.0" off
- Winona, KS 19.5" · 0.0" off
- Albin, WY 19.5" · 0.0" off
- Kenmare, ND 19.5" · 0.0" off
Data-derived climate profile
How Crystal City's climate pattern fits together
cooling led · dry · mid swing
Air-conditioning demand is the clearest thermal signal here. Crystal City accumulates 3,838 cooling degree days, more than twice its 990 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: Crystal City receives 19.5 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.
August and January mark the typical warm and cold ends of the calendar in Crystal City's middle-range seasonal profile. The measured spread is 32.1°F. The annual average is 73°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Crystal City has a long frost-free window of roughly 303 days, but the dry annual profile is a separate constraint. Growing-season length says when freezes are unlikely, not whether rainfall is sufficient.
These labels group NOAA 1991-2020 normals from Crystal City's primary station, so the summer figures are a thirty-year average rather than a ceiling: individual years have run hotter and will again. For Crystal City that means a descriptive range only — not an official NOAA classification and not a prediction for next summer.
Questions about Crystal City's climate
How much rain does Crystal City get? ▼
How many days above 90°F does Crystal City get? ▼
How much energy does heating and cooling require in Crystal City? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Crystal City's primary station: CRYSTAL CITY (USC00412160). 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 4818020). Match rule for Crystal City: 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 Crystal City 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.