Diana, TX 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 Diana's primary NOAA station, DIANA 2 W.
The climate verdict for Diana
Water is the standout signal in Diana, Texas: 52.8 inches of precipitation in a normal year. Against that wet profile, NOAA records an annual average of 65°F. It scores 85/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 85% of them.
- 65°F
- annual average temperature (NOAA normal)
- 85/100
- comfort score, above 85% of station-mapped location scores
- 52.8"
- annual precipitation
- 250 days
- growing season, frost-free days
Diana: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00412446 · Diana, TX 65°F mean · 52.8" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-WET · SWING-MID · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 65°F
- RANK-UPPER #6,038
- PHOTO-FINISH ≈ Bienville
- PRCP-WET 52.8"
- SWING-MID 37°F
- COMF-TOP 85/100
- LOAD-MIX H/C balanced
- STN-1 USC00412446
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Bienville, LA (+ 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 TX station list.
- Diana (this station) 65°F
- Hot Evergreen, AL 65°F
- Near Bienville, LA 65°F
- Near Burbank Glendal…, CA 65°F
- Near El Cajon, CA 65°F
Diana 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 · Diana
Diana: 78/100 · grade B
Diana publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Diana, not an official NOAA rating. Rankings still use Comfort Score 85/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 65.2°F · 2.3° from 67.5°F | 92/100 · A |
| Frost-free season | 250 days/year | 89/100 · A |
| Normal heat + freeze calendar | 72 calendar days | 85/100 · A |
| Precipitation balance | 52.8 in · 17.8 from 35 in | 36/100 · F |
Diana · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Diana is a temperate Köppen climate: Cfa
Coldest-month mean 45.9°F and warmest-month mean 83.2°F place this station in temperate, no dry season, hot summer climates (Cfa). Class Cfa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, no dry season, hot summer.
- Köppen code
- Cfa
- Group
- Temperate
- Warmest month
- 83.2°F
- Coldest month
- 45.9°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 · balanced station
Where Diana sits across the climate record
Three NOAA fields for Diana's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 12% warmest
- Among 6,861 stations, Diana sits in the warmer third of annual means.
- Annual precipitation
- Top 14% wettest
- Diana's annual total ranks in the wetter third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 76%
- Warmest-to-coldest month gap for Diana is compact versus 6,861 complete station-years.
How Diana compares across U.S. station-mapped locations
Diana's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
85 Top 15% score exceeds 85% 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 56°F (13°C) | 36°F (2°C) | 46°F (8°C) | 4.5" | 13.2 | 0.0 |
| February | 61°F (16°C) | 39°F (4°C) | 50°F (10°C) | 4.5" | 7.2 | 0.0 |
| March | 69°F (21°C) | 46°F (8°C) | 58°F (14°C) | 4.9" | 3.0 | 0.0 |
| April | 75°F (24°C) | 54°F (12°C) | 65°F (18°C) | 4.8" | 0.2 | 0.2 |
| May | 82°F (28°C) | 63°F (17°C) | 73°F (23°C) | 5.6" | 0.0 | 1.6 |
| June | 89°F (32°C) | 70°F (21°C) | 80°F (27°C) | 4.3" | 0.0 | 14.2 |
| July | 93°F (34°C) | 73°F (23°C) | 83°F (28°C) | 3.5" | 0.0 | 25.2 |
| August | 94°F (34°C) | 72°F (22°C) | 83°F (28°C) | 3.0" | 0.0 | 23.6 |
| September | 88°F (31°C) | 65°F (19°C) | 77°F (25°C) | 3.8" | 0.0 | 15.5 |
| October | 78°F (25°C) | 54°F (12°C) | 66°F (19°C) | 4.8" | 0.2 | 2.4 |
| November | 67°F (19°C) | 44°F (7°C) | 55°F (13°C) | 4.0" | 5.3 | 0.0 |
| December | 58°F (15°C) | 38°F (3°C) | 48°F (9°C) | 5.3" | 9.2 | 0.0 |
The year, day by day
The year in Diana runs from a mild 35°F around January 7 to 95°F at the peak near July 30, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from June 25 through September 4, covering 72 dates. The broader mild season, normal highs of 70°F or more, runs March 19 to November 3.
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 35°F around January 7.
The widest day
October 8 carries the biggest normal gap between afternoon and dawn, 24°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Diana.
Where Diana Stands Nationally
Heat is a defining feature of the normals calendar — the normal daily high reaches 90°F on roughly 72 days a year, more than four out of five ranked stations record.
The normal water year runs well above the national norm at roughly 53 inches.
Diana earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
Diana spreads its precipitation across the year
Neither half of the year dominates here: June through August take 20% of the annual total and December through February 27%, with neither reaching the 35% that would mark a distinct wet season. Diana has no dry season to plan around, though it does carry a 37.3°F seasonal spread.
The gap between the wettest and driest month still matters: May averages 5.6" and August 3.0". The three wettest months together take 30% 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.
Frost Dates & Growing Season
First Fall Freeze
November 15
50% probability date
Last Spring Freeze
March 10
50% probability date
Growing Season
250 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,313
Higher = more heating needed
Cooling Degree Days
2,424
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside TX closest to Diana 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 (65°F here).
- Bienville, LA 65°F · 0.0°F off
- El Cajon, CA 65°F · 0.0°F off
- Evergreen, AL 65°F · 0.0°F off
- Jackson, AL 65°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (52.8" here), excluding temperature-peer places.
- Cedartown, GA 52.8" · 0.0" off
- Crestwood, KY 52.9" · 0.0" off
- Hot Springs, AR 52.9" · 0.0" off
- Lumpkin, GA 52.8" · 0.1" off
Data-derived climate profile
How Diana's climate pattern fits together
mixed demand · wet · mid swing
Water is prominent even though neither heating nor cooling wholly defines the record. Diana averages 52.8 inches of precipitation a year. Snowfall is not added to the interpretation because its annual value is missing. The monthly table supplies the seasonal distribution hidden by that annual total.
July and January mark the typical warm and cold ends of the calendar in Diana's middle-range seasonal profile. The measured spread is 37.3°F. The annual average is 65°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Heating and cooling both register in Diana's normal, at 2,313 and 2,424 degree days respectively. Neither total exceeds the other by more than two to one, so the record is better read as a mixed-demand calendar than as heating-led or cooling-led.
The frost-free window extends for about 250 days. That is a long calendar measure, but it is not a forecast and does not combine heat, rainfall, soil, or local elevation into a planting recommendation.
These labels group NOAA 1991-2020 normals from Diana's primary station, where heating and cooling demand are close enough that neither season sets the character on its own. On a balanced station like Diana, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about Diana's climate
How much rain does Diana get? ▼
How many days above 90°F does Diana get? ▼
How much energy does heating and cooling require in Diana? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Diana's primary station: DIANA 2 W (USC00412446). 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 Diana; 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 Diana 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.