Penwell, TX Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from Penwell's primary NOAA station, PENWELL.
The climate verdict for Penwell
Dryness leads the climate profile for Penwell, Texas, with 12.5 inches of precipitation a year. NOAA records an annual average of 66°F. It scores 87/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 87% of them.
- 66°F
- annual average temperature (NOAA normal)
- 87/100
- comfort score, above 87% of station-mapped location scores
- 12.5"
- annual precipitation · 2" snow
- 245 days
- frost-free days per growing season
Penwell: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00416932 · Penwell, TX 66°F mean · 12.5" precip
TEMP-MILD · RANK-WARM · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 66°F
- RANK-WARM #6,244
- PHOTO-FINISH ≈ Beaumont Expsta…
- PRCP-DRY 12.5"
- SWING-MID 39°F
- COMF-TOP 87/100
- LOAD-MIX H/C balanced
- STN-1 USC00416932
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Beaumont Expstation, MS (+ 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.
- Penwell (this station) 66°F
- Hot Crane, TX 66°F
- Near Beaumont Expsta…, MS 66°F
- Near Brooklet, GA 66°F
- Near Coleman, TX 66°F
Penwell 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 · Penwell
Penwell: 65/100 · grade C
Penwell publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Penwell, not an official NOAA rating. Rankings still use Comfort Score 87/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 66.3°F · 1.2° from 67.5°F | 95/100 · A |
| Frost-free season | 245 days/year | 87/100 · A |
| Snowfall burden | 1.5 inches/year | 79/100 · B |
| Normal heat + freeze calendar | 146 calendar days | 49/100 · D |
| Precipitation balance | 12.5 in · 22.5 from 35 in | 20/100 · F |
Penwell · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Penwell'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
- 84.6°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 Penwell sits across the climate record
Three NOAA fields for Penwell's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 9% warmest
- Among 6,861 stations, Penwell sits in the warmer third of annual means.
- Annual precipitation
- Drier than 89%
- Penwell's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 70%
- Warmest-to-coldest month gap for Penwell is compact versus 6,861 complete station-years.
How Penwell compares across U.S. station-mapped locations
Penwell's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
87 Top 13% score exceeds 87% 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 | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 60°F (16°C) | 32°F (0°C) | 46°F (8°C) | 0.6" | 0.8" | 20.8 | 0.0 |
| February | 65°F (18°C) | 36°F (2°C) | 51°F (10°C) | 0.6" | 0.0" | 11.4 | 0.0 |
| March | 73°F (23°C) | 44°F (7°C) | 59°F (15°C) | 0.6" | 0.0" | 4.9 | 1.0 |
| April | 82°F (28°C) | 51°F (11°C) | 67°F (19°C) | 0.7" | 0.0" | 1.3 | 6.6 |
| May | 90°F (32°C) | 62°F (16°C) | 76°F (24°C) | 1.4" | 0.0" | 0.0 | 16.7 |
| June | 97°F (36°C) | 70°F (21°C) | 84°F (29°C) | 1.1" | 0.0" | 0.0 | 25.7 |
| July | 97°F (36°C) | 73°F (23°C) | 85°F (29°C) | 1.2" | 0.0" | 0.0 | 26.7 |
| August | 97°F (36°C) | 72°F (22°C) | 84°F (29°C) | 1.5" | 0.0" | 0.0 | 27.4 |
| September | 89°F (32°C) | 65°F (18°C) | 77°F (25°C) | 2.0" | 0.0" | 0.0 | 15.6 |
| October | 81°F (27°C) | 53°F (12°C) | 67°F (20°C) | 1.3" | 0.0" | 0.7 | 5.2 |
| November | 69°F (21°C) | 42°F (5°C) | 55°F (13°C) | 0.7" | 0.1" | 6.6 | 0.0 |
| December | 61°F (16°C) | 33°F (1°C) | 47°F (8°C) | 0.7" | 0.6" | 18.5 | 0.0 |
The year, day by day
Penwell works both ends of the calendar. Normal highs climb to 98°F by August 6 and hold at or above 90°F on 118 dates, then normal lows drop to freezing or below on 28 dates, bottoming at 32°F around January 2.
When the heat sits
Normal highs reach 90°F from May 18 through September 12, covering 118 dates. The broader mild season, normal highs of 70°F or more, runs March 7 to November 12.
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 January 20, then returns to freezing around December 24, covering 28 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 September 14, when 15% of years recorded at least a hundredth of an inch. The driest is December 5 at 7%. Summed across the calendar, that is about 39 wet dates a year.
The widest day
April 7 carries the biggest normal gap between afternoon and dawn, 31°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Penwell.
Where Penwell Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 118 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
A drier-than-most normal water year — around 13 inches, below what four out of five ranked stations collect.
Penwell 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: 0.8"
2.8 days with precipitation
2.6 days with precipitation
2.7 days with precipitation
2.1 days with precipitation
3.6 days with precipitation
3.4 days with precipitation
4.4 days with precipitation
4.1 days with precipitation
4.4 days with precipitation
3.9 days with precipitation
Snow: 0.1"
2.4 days with precipitation
Snow: 0.6"
2.4 days with precipitation
Penwell 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 16%, with neither reaching the 35% that would mark a distinct wet season. Penwell has no dry season to plan around, though it does carry a 38.7°F seasonal spread.
The gap between the wettest and driest month still matters: September averages 2.0" and March 0.6". The three wettest months together take 39% 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 Penwell's precipitation splits across the calendar
About 39 days a year record measurable precipitation here, carrying 12.5" 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.
Snow reaches Penwell, but rarely amounts to much
The normals record 1.5 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
November 14
50% probability date
Last Spring Freeze
March 14
50% probability date
Growing Season
245 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,261
Higher = more heating needed
Cooling Degree Days
2,786
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside TX closest to Penwell 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 (66°F here).
- Brooklet, GA 66°F · 0.0°F off
- Fitzgerald, GA 66°F · 0.0°F off
- Hemet, CA 66°F · 0.0°F off
- Jasper, FL 66°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (12.5" here), excluding temperature-peer places.
- Cedaredge, CO 12.5" · 0.0" off
- Brockway, MT 12.4" · 0.0" off
- Stevensville, MT 12.4" · 0.0" off
- Brady, MT 12.5" · 0.0" off
Scarce-water calendar
Where Penwell's limited precipitation lands
mixed demand · dry · mid swing
Local precipitation is sparse in this otherwise mixed profile. The station reports 12.5 inches annually, within PlainClimate's dry band. Annual snowfall totals 1.5 inches. The monthly distribution matters because the total alone does not reveal the timing.
July and January mark the typical warm and cold ends of the calendar in Penwell's middle-range seasonal profile. The measured spread is 38.7°F. The annual average is 66°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Heating and cooling both register in Penwell's normal, at 2,261 and 2,786 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.
Penwell has a long frost-free window of roughly 245 days, but the dry annual profile is a separate constraint. Growing-season length says when freezes are unlikely, not whether rainfall is sufficient.
Penwell wettest normal
September
September concentrates the scarce annual total (12.5 inches).
Penwell driest normal
March
March is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Penwell's climate
How dry is Penwell? ▼
How many days above 90°F does Penwell get? ▼
How much energy does heating and cooling require in Penwell? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Penwell's primary station: PENWELL (USC00416932). 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 Penwell; 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 Penwell 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.