Chula Vista, CA Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Chula Vista's primary NOAA station, CHULA VISTA.
The climate verdict for Chula Vista
Dryness leads the climate profile for Chula Vista, California, with 9.2 inches of precipitation a year. NOAA records an annual average of 63°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.
- 63°F
- average temperature, NOAA 1991-2020 normal
- 76/100
- comfort score, above 69% of station-mapped location scores
- 9.2"
- annual precipitation
Chula Vista: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00041758 · Chula Vista, CA 63°F mean · 9.2" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-ARID · SWING-NARROW · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 63°F
- RANK-UPPER #5,763
- PHOTO-FINISH ≈ Aliceville
- PRCP-ARID 9.2"
- SWING-NARROW 15°F
- COMF-TOP 76/100
- LOAD-MIX H/C balanced
- STN-1 USC00041758
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Aliceville, 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.
- Chula Vista (this station) 63°F
- Hot Benson, AZ 63°F
- Near Aliceville, AL 63°F
- Near Aurora, NC 63°F
- Near Bastrop, LA 63°F
Climate Living Index · Chula Vista
Chula Vista: 76/100 · grade B
Chula Vista publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Chula Vista, not an official NOAA rating. Rankings still use Comfort Score 76/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 0 calendar days | 100/100 · A |
| Snowfall burden | 0.0 inches/year | 90/100 · A |
| Annual temperature balance | 63.3°F · 4.2° from 67.5°F | 87/100 · A |
| Precipitation balance | 9.2 in · 25.8 from 35 in | 10/100 · F |
Chula Vista · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Chula Vista's normals sit in a dry climate class: BSk
Precipitation is low relative to temperature but above true desert thresholds: cold semi-arid steppe (BSk). Class BSk is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically cold semi-arid steppe.
- Köppen code
- BSk
- Group
- Dry (arid or semi-arid)
- Warmest month
- 71.3°F
- Coldest month
- 56.2°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 Chula Vista sits across the climate record
Three NOAA fields for Chula Vista's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 16% warmest
- Among 6,861 stations, Chula Vista sits in the warmer third of annual means.
- Annual precipitation
- Drier than 95%
- Chula Vista's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 98%
- Warmest-to-coldest month gap for Chula Vista is compact versus 6,861 complete station-years.
How Chula Vista compares across U.S. station-mapped locations
Chula Vista'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
Chula Vista's measured station temperature trend
MethodologyAcross 58 complete annual observations from 1919 to 2025, CHULA VISTA warmed at a fitted rate of 0.18°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Chula Vista primary station fitted change +0.18 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 68°F (20°C) | 47°F (8°C) | 57°F (14°C) | 1.8" | 0.0" | 0.0 | 0.0 |
| February | 67°F (19°C) | 48°F (9°C) | 58°F (14°C) | 2.3" | 0.0" | 0.0 | 0.1 |
| March | 67°F (19°C) | 51°F (11°C) | 59°F (15°C) | 1.4" | 0.0" | 0.0 | 0.2 |
| April | 68°F (20°C) | 54°F (12°C) | 61°F (16°C) | 0.7" | 0.0" | 0.0 | 0.1 |
| May | 69°F (21°C) | 58°F (14°C) | 63°F (17°C) | 0.3" | 0.0" | 0.0 | 0.0 |
| June | 71°F (22°C) | 61°F (16°C) | 66°F (19°C) | 0.1" | 0.0" | 0.0 | 0.0 |
| July | 75°F (24°C) | 65°F (18°C) | 70°F (21°C) | 0.1" | 0.0" | 0.0 | 0.0 |
| August | 77°F (25°C) | 66°F (19°C) | 71°F (22°C) | 0.0" | 0.0" | 0.0 | 0.5 |
| September | 77°F (25°C) | 64°F (18°C) | 71°F (21°C) | 0.1" | 0.0" | 0.0 | 1.9 |
| October | 75°F (24°C) | 59°F (15°C) | 67°F (19°C) | 0.4" | 0.0" | 0.0 | 1.5 |
| November | 71°F (22°C) | 51°F (11°C) | 61°F (16°C) | 0.6" | 0.0" | 0.0 | 0.5 |
| December | 67°F (19°C) | 46°F (8°C) | 56°F (13°C) | 1.6" | 0.0" | 0.0 | 0.0 |
The year, day by day
The calendar barely moves in Chula Vista: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 46°F near December 17 and 78°F near August 29.
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 46°F around December 17.
Where the wet dates fall
The likeliest wet date is February 20, when 24% of years recorded at least a hundredth of an inch. The driest is August 5 at 1%. Summed across the calendar, that is about 33 wet dates a year.
The widest day
January 11 carries the biggest normal gap between afternoon and dawn, 21°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Chula Vista.
Where Chula Vista Stands Nationally
Aridity defines the water calendar: about 9 inches in a normal year lands this among the driest tenth of ranked stations.
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 21°F.
Chula Vista 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
5.0 days with precipitation
6.8 days with precipitation
5.0 days with precipitation
3.3 days with precipitation
1.4 days with precipitation
0.4 days with precipitation
0.3 days with precipitation
0.3 days with precipitation
0.5 days with precipitation
1.3 days with precipitation
2.8 days with precipitation
5.4 days with precipitation
Chula Vista's wet season runs through the cold months
December, January and February carry 62% 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 15.1°F seasonal spread.
- Wettest month
- February, 2.3"
- Driest month
- August, 0.0"
- Wettest three months
- February, January, December (62% 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 Chula Vista's precipitation splits across the calendar
About 33 days a year record measurable precipitation here, carrying 9.2" between them, or roughly 0.28 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.
Chula Vista'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
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
1,305
Higher = more heating needed
Cooling Degree Days
701
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside CA closest to Chula Vista 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 (63°F here).
- Aliceville, AL 63°F · 0.0°F off
- Aurora, NC 63°F · 0.0°F off
- Bastrop, LA 63°F · 0.0°F off
- Benson, AZ 63°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (9.2" here), excluding temperature-peer places.
- Battle Mountain, NV 9.2" · 0.0" off
- Circleville, UT 9.2" · 0.0" off
- Glen, MT 9.2" · 0.0" off
- Spanish Springs, NV 9.2" · 0.0" off
Scarce-water calendar
Where Chula Vista's limited precipitation lands
mixed demand · dry · low swing
Local precipitation is sparse in this otherwise mixed profile. The station reports 9.2 inches annually, within PlainClimate's dry band. Recorded annual snowfall is negligible. 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 15.1°F apart, while the annual precipitation total remains below PlainClimate's dry threshold. The annual average is 63°F. The monthly rows show whether that limited precipitation is spread through the year or concentrated in a shorter interval.
Chula Vista combines a compact 15.1°F annual temperature range with meaningful demand on both sides of the thermostat: 1,305 heating and 701 cooling degree days. The balance matters more here than either annual total in isolation.
A frost-free growing-season length is not available for Chula Vista. That missing field is kept separate from the observed temperature and precipitation record rather than filled from a regional estimate.
Chula Vista wettest normal
February
February concentrates the scarce annual total (9.2 inches).
Chula Vista driest normal
August
August is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Chula Vista's climate
How dry is Chula Vista? ▼
How much energy does heating and cooling require in Chula Vista? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Chula Vista's primary station: CHULA VISTA (USC00041758). 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 0613392). Match rule for Chula Vista: 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 Chula Vista 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.