Chino, CA 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 Chino's primary NOAA station, CHINO AP.
The climate verdict for Chino
Dryness leads the climate profile for Chino, California, with 10.0 inches of precipitation a year. NOAA records an annual average of 66°F. It scores 76/100 for climate comfort (good), putting it in the top third of station-mapped location scores and exceeding 69% of them.
- 66°F
- yearly average temperature, NOAA normal
- 76/100
- comfort score, above 69% of station-mapped location scores
- 10.0"
- precipitation, annual total
- 336 days
- growing season, frost-free days
Chino: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00003179 · Chino, CA 66°F mean · 10.0" precip
TEMP-MILD · RANK-WARM · PHOTO-FINISH · PRCP-ARID · SWING-NARROW · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 66°F
- RANK-WARM #6,175
- PHOTO-FINISH ≈ Coden
- PRCP-ARID 10.0"
- SWING-NARROW 25°F
- COMF-TOP 76/100
- LOAD-MIX H/C balanced
- STN-1 USW00003179
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Coden, AL (+ 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 CA station list.
- Chino (this station) 66°F
- Hot Hazlehurst, GA 66°F
- Near Coden, AL 66°F
- Near Glennville, GA 66°F
- Near Greenville Cren…, AL 66°F
Climate Living Index · Chino
Chino: 73/100 · grade B
Chino publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Chino, not an official NOAA rating. Rankings still use Comfort Score 76/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 336 days/year | 100/100 · A |
| Annual temperature balance | 66.1°F · 1.4° from 67.5°F | 94/100 · A |
| Normal heat + freeze calendar | 93 calendar days | 78/100 · B |
| Precipitation balance | 10.0 in · 25.0 from 35 in | 12/100 · F |
Chino · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Chino'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
- 79.8°F
- Coldest month
- 54.6°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 Chino sits across the climate record
Three NOAA fields for Chino's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 10% warmest
- Among 6,861 stations, Chino sits in the warmer third of annual means.
- Annual precipitation
- Drier than 94%
- Chino's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 94%
- Warmest-to-coldest month gap for Chino is compact versus 6,861 complete station-years.
How Chino compares across U.S. station-mapped locations
Chino's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
76 Top 31% score exceeds 69% 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%). This entry sits in this band.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 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 | 70°F (21°C) | 42°F (5°C) | 56°F (13°C) | 2.2" | 3.1 | 0.0 |
| February | 70°F (21°C) | 43°F (6°C) | 56°F (14°C) | 2.7" | 2.1 | 0.2 |
| March | 73°F (23°C) | 46°F (8°C) | 59°F (15°C) | 1.4" | 0.4 | 1.0 |
| April | 77°F (25°C) | 49°F (9°C) | 63°F (17°C) | 0.6" | 0.1 | 2.5 |
| May | 81°F (27°C) | 54°F (12°C) | 68°F (20°C) | 0.2" | 0.0 | 5.1 |
| June | 88°F (31°C) | 59°F (15°C) | 73°F (23°C) | 0.0" | 0.0 | 11.3 |
| July | 94°F (34°C) | 63°F (17°C) | 78°F (26°C) | 0.1" | 0.0 | 23.2 |
| August | 96°F (36°C) | 63°F (17°C) | 80°F (27°C) | 0.0" | 0.0 | 25.1 |
| September | 93°F (34°C) | 60°F (16°C) | 77°F (25°C) | 0.1" | 0.0 | 18.8 |
| October | 85°F (29°C) | 53°F (12°C) | 69°F (21°C) | 0.5" | 0.0 | 9.2 |
| November | 76°F (25°C) | 45°F (7°C) | 61°F (16°C) | 0.6" | 0.9 | 2.5 |
| December | 69°F (20°C) | 40°F (5°C) | 55°F (13°C) | 1.7" | 4.8 | 0.0 |
The year, day by day
The year in Chino runs from a mild 40°F around December 14 to 97°F at the peak near August 21, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from June 24 through September 24, covering 93 dates. The broader mild season, normal highs of 70°F or more, runs February 21 to December 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 40°F around December 14.
Where the wet dates fall
The likeliest wet date is February 22, when 22% of years recorded at least a hundredth of an inch. The driest is August 16 at 1%. Summed across the calendar, that is about 35 wet dates a year.
The widest day
August 26 carries the biggest normal gap between afternoon and dawn, 34°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Chino.
Where Chino Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 93 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 10 inches in a normal year lands this among the driest tenth of ranked stations.
Chino earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
4.8 days with precipitation
6.2 days with precipitation
4.7 days with precipitation
3.6 days with precipitation
1.4 days with precipitation
0.3 days with precipitation
0.3 days with precipitation
0.2 days with precipitation
0.7 days with precipitation
3.0 days with precipitation
4.4 days with precipitation
4.9 days with precipitation
Chino's wet season runs through the cold months
December, January and February carry 66% of the year's precipitation here, while June through August contribute 1%. 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 an unusually narrow 25.2°F seasonal spread.
- Wettest month
- February, 2.7"
- Driest month
- August, 0.0"
- Wettest three months
- February, January, December (66% 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.
How Chino's precipitation splits across the calendar
About 35 days a year record measurable precipitation here, carrying 10.0" between them, or roughly 0.29 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.
Frost Dates & Growing Season
First Fall Freeze
December 19
50% probability date
Last Spring Freeze
January 17
50% probability date
Growing Season
336 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,387
Higher = more heating needed
Cooling Degree Days
1,817
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside CA closest to Chino 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).
- Glennville, GA 66°F · 0.0°F off
- Hazlehurst, GA 66°F · 0.0°F off
- Hillsboro, TX 66°F · 0.0°F off
- Meadview, AZ 66°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (10.0" here), excluding temperature-peer places.
- Truth OR Consequences, NM 10.0" · 0.0" off
- Cubero, NM 10.0" · 0.0" off
- Vale, OR 10.0" · 0.0" off
- Picacho, AZ 9.9" · 0.0" off
Scarce-water calendar
Where Chino's limited precipitation lands
mixed demand · dry · low swing
Local precipitation is sparse in this otherwise mixed profile. The station reports 10.0 inches annually, within PlainClimate's dry band. Snowfall is not added to the interpretation because its annual value is missing. The monthly distribution matters because the total alone does not reveal the timing.
The calendar stays thermally compact and dry. August and December mark the typical warm and cold ends of the calendar, only 25.2°F apart, while the annual precipitation total remains below PlainClimate's dry threshold. The annual average is 66°F. The monthly rows show whether that limited precipitation is spread through the year or concentrated in a shorter interval.
Chino combines a compact 25.2°F annual temperature range with meaningful demand on both sides of the thermostat: 1,387 heating and 1,817 cooling degree days. The balance matters more here than either annual total in isolation.
Chino has a long frost-free window of roughly 336 days, but the dry annual profile is a separate constraint. Growing-season length says when freezes are unlikely, not whether rainfall is sufficient.
Chino wettest normal
February
February concentrates the scarce annual total (10.0 inches).
Chino driest normal
August
August is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Chino's climate
How dry is Chino? ▼
How many days above 90°F does Chino get? ▼
How much energy does heating and cooling require in Chino? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Chino's primary station: CHINO AP (USW00003179). 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 0613210). Match rule for Chino: 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 Chino 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.