Brawley, CA Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Brawley's primary NOAA station, BRAWLEY 2 SW.
The climate verdict for Brawley
Brawley, California is cooling-led and dry. Its 2.4 inches of annual precipitation pairs with an annual average of 74°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.
- 74°F
- annual average temperature (NOAA normal)
- 80/100
- comfort score, above 76% of station-mapped location scores
- 2.4"
- yearly precipitation total
- 337 days
- growing season, frost-free days
Brawley: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00041048 · Brawley, CA 74°F mean · 2.4" precip
TEMP-HOT · RANK-WARM · PHOTO-FINISH · PRCP-ARID · SWING-MID · COMF-TOP · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-HOT 74°F
- RANK-WARM #6,724
- PHOTO-FINISH ≈ Hebbronville
- PRCP-ARID 2.4"
- SWING-MID 38°F
- COMF-TOP 80/100
- LOAD-COOL 4,154 CDD
- STN-1 USC00041048
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Hebbronville, TX (+ 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 CA station list.
- Brawley (this station) 74°F
- Cold Ajo, AZ 74°F
- Hot Del Rio, TX 74°F
- Near Hebbronville, TX 74°F
- Near El Centro Naf, CA 74°F
Climate Living Index · Brawley
Brawley: 54/100 · grade D
Brawley publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Brawley, not an official NOAA rating. Rankings still use Comfort Score 80/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 337 days/year | 100/100 · A |
| Snowfall burden | 0.0 inches/year | 90/100 · A |
| Annual temperature balance | 73.8°F · 6.3° from 67.5°F | 80/100 · B |
| Normal heat + freeze calendar | 177 calendar days | 27/100 · F |
| Precipitation balance | 2.4 in · 32.6 from 35 in | 0/100 · F |
Brawley · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Brawley'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
- 93.1°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 Brawley sits across the climate record
Three NOAA fields for Brawley's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 2% warmest
- Among 6,861 stations, Brawley sits in the warmer third of annual means.
- Annual precipitation
- Drier than 100%
- Brawley's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 74%
- Warmest-to-coldest month gap for Brawley is compact versus 6,861 complete station-years.
How Brawley compares across U.S. station-mapped locations
Brawley'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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 72°F (22°C) | 41°F (5°C) | 57°F (14°C) | 0.5" | 0.0" | 2.0 | 0.0 |
| February | 75°F (24°C) | 45°F (7°C) | 60°F (15°C) | 0.5" | 0.0" | 0.4 | 0.1 |
| March | 81°F (27°C) | 50°F (10°C) | 66°F (19°C) | 0.3" | 0.0" | 0.1 | 4.1 |
| April | 87°F (31°C) | 54°F (12°C) | 71°F (22°C) | 0.1" | 0.0" | 0.0 | 10.4 |
| May | 95°F (35°C) | 61°F (16°C) | 78°F (25°C) | 0.0" | 0.0" | 0.0 | 24.3 |
| June | 104°F (40°C) | 68°F (20°C) | 86°F (30°C) | 0.0" | 0.0" | 0.0 | 28.6 |
| July | 108°F (42°C) | 77°F (25°C) | 92°F (34°C) | 0.0" | 0.0" | 0.0 | 31.0 |
| August | 108°F (42°C) | 78°F (26°C) | 93°F (34°C) | 0.1" | 0.0" | 0.0 | 31.0 |
| September | 104°F (40°C) | 71°F (22°C) | 88°F (31°C) | 0.1" | 0.0" | 0.0 | 29.2 |
| October | 93°F (34°C) | 60°F (16°C) | 77°F (25°C) | 0.1" | 0.0" | 0.0 | 20.3 |
| November | 80°F (27°C) | 49°F (9°C) | 64°F (18°C) | 0.2" | 0.0" | 0.6 | 1.7 |
| December | 70°F (21°C) | 41°F (5°C) | 55°F (13°C) | 0.5" | 0.0" | 3.3 | 0.0 |
The year, day by day
The year in Brawley runs from a mild 40°F around December 18 to 109°F at the peak near July 21, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from May 1 through October 24, covering 177 dates. The broader mild season, normal highs of 70°F or more, runs January 4 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 18.
Where the wet dates fall
The likeliest wet date is February 23, when 11% of years recorded at least a hundredth of an inch. The driest is June 19 at 0%. Summed across the calendar, that is about 15 wet dates a year.
The widest day
June 10 carries the biggest normal gap between afternoon and dawn, 36°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Brawley.
Where Brawley Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 177 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 2 inches in a normal year lands this among the driest tenth of ranked stations.
Brawley 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
2.8 days with precipitation
3.1 days with precipitation
2.5 days with precipitation
0.6 days with precipitation
0.4 days with precipitation
0.0 days with precipitation
0.2 days with precipitation
0.7 days with precipitation
0.4 days with precipitation
0.6 days with precipitation
1.1 days with precipitation
2.1 days with precipitation
Brawley's wet season runs through the cold months
December, January and February carry 61% of the year's precipitation here, while June through August contribute 4%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows a 37.8°F seasonal spread.
- Wettest month
- February, 0.5"
- Driest month
- June, 0.0"
- Wettest three months
- February, January, December (61% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
Brawley is dry, and what does fall arrives gently
Only about 14 days a year record measurable precipitation here, 4% of the calendar, and they carry 2.4" between them. At roughly 0.16 inches on an average wet day, this is not the damp drizzle of a marine climate; it is an arid record in which precipitation is both uncommon and light when it appears.
The wettest month by count is February at about 3 wet days; the driest is June at about 0.
A low per-event average in a dry record is a statement about typical days only. Arid regions can still take a large share of a year's total from a single convective storm, which a normal cannot show.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, not the extremes within it.
Brawley'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 19
50% probability date
Last Spring Freeze
January 16
50% probability date
Growing Season
337 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
909
Higher = more heating needed
Cooling Degree Days
4,154
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside CA closest to Brawley 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 (74°F here).
- Port Salerno, FL 74°F · 0.1°F off
- Quartzsite, AZ 74°F · 0.1°F off
- Venice, FL 74°F · 0.1°F off
- Del Rio, TX 74°F · 0.1°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (2.4" here), excluding temperature-peer places.
- Yuma Proving Ground, AZ 3.5" · 1.2" off
- Wendover, UT 3.6" · 1.2" off
- Tacna, AZ 3.8" · 1.4" off
- Yuma, AZ 4.0" · 1.6" off
Scarce-water calendar
Where Brawley's limited precipitation lands
cooling led · dry · mid swing
Air-conditioning demand is the clearest thermal signal here. Brawley accumulates 4,154 cooling degree days, more than twice its 909 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: Brawley receives 2.4 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 December mark the typical warm and cold ends of the calendar in Brawley's middle-range seasonal profile. The measured spread is 37.8°F. The annual average is 74°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
With about 337 frost-free days, the calendar is constrained more by sustained heat than by freeze timing. This does not measure crop suitability or soil moisture; it only reports the NOAA-derived frost-free window for Brawley.
Brawley wettest normal
February
February concentrates the scarce annual total (2.4 inches).
Brawley driest normal
June
June is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Brawley's climate
How dry is Brawley? ▼
How many days above 90°F does Brawley get? ▼
How much energy does heating and cooling require in Brawley? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Brawley's primary station: BRAWLEY 2 SW (USC00041048). 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 0608058). Match rule for Brawley: 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 Brawley 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.