Cuyamaca, 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 Cuyamaca's primary NOAA station, CUYAMACA.
The climate verdict for Cuyamaca
A compact 29.5°F seasonal swing gives Cuyamaca, California a steadier-than-extreme annual shape. NOAA reports an annual average of 54°F. Its climate comfort score of 68/100 (good) lands mid-pack nationally, exceeding 56% of station-mapped location scores.
- 54°F
- annual average temperature (NOAA normal)
- 68/100
- comfort score, above 56% of station-mapped location scores
- 30.3"
- annual precipitation · 20" snow
- 191 days
- frost-free days per growing season
Cuyamaca: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00042239 · Cuyamaca, CA 54°F mean · 30.3" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-MID · SWING-NARROW · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 54°F
- RANK-MID #3,911
- PHOTO-FINISH ≈ Ruch
- PRCP-MID 30.3"
- SWING-NARROW 30°F
- COMF-MID 68/100
- LOAD-HEAT 4,519 HDD
- STN-1 USC00042239
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Ruch, OR (+ 0.2 °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.
- Cuyamaca (this station) 54°F
- Cold Elk, NM 54°F
- Hot Lake Toxaway, NC 54°F
- Near Ruch, OR 54°F
- Near Germany Valley, GA 54°F
Climate Living Index · Cuyamaca
Cuyamaca: 72/100 · grade B
Cuyamaca publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Cuyamaca, not an official NOAA rating. Rankings still use Comfort Score 68/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 23 calendar days | 97/100 · A |
| Precipitation balance | 30.3 in · 4.8 from 35 in | 83/100 · B |
| Frost-free season | 191 days/year | 58/100 · C |
| Annual temperature balance | 54.0°F · 13.5° from 67.5°F | 56/100 · C |
| Snowfall burden | 19.9 inches/year | 49/100 · D |
Cuyamaca · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Cuyamaca is a temperate Köppen climate: Csb
Coldest-month mean 41.3°F and warmest-month mean 70.8°F place this station in temperate, dry-summer, warm summer climates (Csb). Class Csb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, dry-summer, warm summer.
- Köppen code
- Csb
- Group
- Temperate
- Warmest month
- 70.8°F
- Coldest month
- 41.3°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 · heating-led station
Where Cuyamaca sits across the climate record
Three NOAA fields for Cuyamaca's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 57th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- 40th percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Narrower than 91%
- Warmest-to-coldest month gap for Cuyamaca is compact versus 6,861 complete station-years.
How Cuyamaca compares across U.S. station-mapped locations
Cuyamaca's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
68 Top 44% score exceeds 56% 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%). This entry sits in this band.
- 70–80: 650 station-mapped locations (11%). Above this entry.
- 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
Cuyamaca's measured station temperature trend
MethodologyAcross 83 complete annual observations from 1904 to 2025, CUYAMACA warmed at a fitted rate of 0.23°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Cuyamaca primary station fitted change +0.23 °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 | 51°F (11°C) | 33°F (1°C) | 42°F (6°C) | 5.5" | 3.8" | 17.4 | 0.0 |
| February | 51°F (11°C) | 34°F (1°C) | 42°F (6°C) | 6.4" | 5.4" | 15.4 | 0.0 |
| March | 55°F (13°C) | 36°F (2°C) | 46°F (8°C) | 4.9" | 5.5" | 11.6 | 0.0 |
| April | 60°F (15°C) | 39°F (4°C) | 49°F (10°C) | 2.3" | 3.1" | 6.4 | 0.0 |
| May | 67°F (19°C) | 44°F (7°C) | 55°F (13°C) | 1.1" | 0.1" | 0.9 | 0.1 |
| June | 76°F (24°C) | 51°F (11°C) | 64°F (18°C) | 0.2" | 0.0" | 0.1 | 1.7 |
| July | 83°F (28°C) | 58°F (15°C) | 71°F (22°C) | 0.3" | 0.0" | 0.0 | 6.7 |
| August | 84°F (29°C) | 58°F (14°C) | 71°F (22°C) | 0.5" | 0.0" | 0.0 | 7.9 |
| September | 79°F (26°C) | 51°F (11°C) | 65°F (18°C) | 0.6" | 0.0" | 0.1 | 2.3 |
| October | 69°F (20°C) | 42°F (5°C) | 55°F (13°C) | 1.5" | 0.0" | 2.9 | 0.0 |
| November | 59°F (15°C) | 35°F (2°C) | 47°F (8°C) | 2.6" | 0.7" | 12.1 | 0.0 |
| December | 51°F (10°C) | 32°F (0°C) | 41°F (5°C) | 4.3" | 1.3" | 19.9 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 84°F around July 31, short of 90°F on every date, while 23 dates carry a normal low at or below freezing, the coldest 31°F near December 10.
The freezing stretch
Freezing normal lows set in around December 3, covering 23 dates.
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 February 20, when 29% of years recorded at least a hundredth of an inch. The driest is June 22 at 3%. Summed across the calendar, that is about 52 wet dates a year.
The widest day
September 20 carries the biggest normal gap between afternoon and dawn, 28°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Cuyamaca.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 3.8"
7.2 days with precipitation
Snow: 5.4"
7.9 days with precipitation
Snow: 5.5"
7.2 days with precipitation
Snow: 3.1"
5.3 days with precipitation
Snow: 0.1"
3.2 days with precipitation
0.9 days with precipitation
1.7 days with precipitation
1.9 days with precipitation
1.7 days with precipitation
3.5 days with precipitation
Snow: 0.7"
4.4 days with precipitation
Snow: 1.3"
7.3 days with precipitation
Cuyamaca's wet season runs through the cold months
December, January and February carry 54% of the year's precipitation here, while June through August contribute 3%. 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 29.5°F seasonal spread.
- Wettest month
- February, 6.4"
- Driest month
- June, 0.2"
- Wettest three months
- February, January, March (56% 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.
When it rains in Cuyamaca, it arrives in quantity
30.3" of precipitation falls across only about 52 wet days here, averaging 0.58 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 52 a year, 14% of all days
- Average depth per wet day
- 0.58 inches
- Most wet days
- February, about 8
- Fewest wet days
- June, about 1
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Winter brings real snow to Cuyamaca
Cuyamaca averages 19.9 inches of snowfall a year, with March the snowiest month on the normals, spread across roughly 8 days that record measurable snow. That is depth accumulating on the ground, which is why it can exceed the annual precipitation figure: precipitation counts the liquid the snow melts down to, and fresh snow is mostly air.
- Annual snowfall: 19.9 inches of depth.
- Days recording measurable snow: about 8 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 7% of the year's precipitation.
NOAA 1991-2020 normals. The ten-to-one ratio is a convention, not a measurement: real ratios vary with temperature, so treat the share as an order of magnitude rather than an exact split.
Frost Dates & Growing Season
First Fall Freeze
October 27
50% probability date
Last Spring Freeze
April 19
50% probability date
Growing Season
191 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,519
Higher = more heating needed
Cooling Degree Days
537
Higher = more cooling needed
Warmest Month
August
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside CA closest to Cuyamaca 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 (54°F here).
- Boardman, OR 54°F · 0.0°F off
- Damascus, MD 54°F · 0.0°F off
- Elsberry, MO 54°F · 0.0°F off
- Estacada, OR 54°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (30.3" here), excluding temperature-peer places.
- Penn Yan, NY 30.2" · 0.0" off
- Sibley, IA 30.2" · 0.0" off
- Marquette, MI 30.2" · 0.1" off
- Concordia, KS 30.3" · 0.1" off
Snow and freeze rhythm
When cold and snow define Cuyamaca
heating led · moderate · low swing
Heating is the larger measured load in Cuyamaca, at 4,519 degree days versus 537 for cooling. Unlike a strongly continental record, however, its 29.5°F month-to-month range is compact; persistent cool-season demand matters more than a dramatic summer-to-winter reversal.
Cuyamaca's frost-free season lasts about 191 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Cuyamaca coldest normal
December
The coldest month still averages 41°F (5°C), above freezing, so this calendar has no hard winter.
-
2. Cuyamaca typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Cuyamaca snow peak
March
Cuyamaca averages 19.9 inches of snow a year, with March the snowiest month on the normals.
Questions about Cuyamaca's climate
How much snow does Cuyamaca get? ▼
How much energy does heating and cooling require in Cuyamaca? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Cuyamaca's primary station: CUYAMACA (USC00042239). 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 Cuyamaca; 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 Cuyamaca 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.