Mt Wilson Cbs, 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 Mt Wilson Cbs's primary NOAA station, MT WILSON CBS.
The climate verdict for Mt Wilson Cbs
A compact 28.8°F seasonal swing gives Mt Wilson Cbs, California a steadier-than-extreme annual shape. NOAA reports an annual average of 58°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.
- 58°F
- annual average temperature (NOAA normal)
- 80/100
- comfort score, above 76% of station-mapped location scores
- 32.2"
- yearly precipitation total
- 201 days
- growing season, frost-free days
Mt Wilson Cbs: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00046006 · Mt Wilson Cbs, CA 58°F mean · 32.2" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-MID · SWING-NARROW · COMF-TOP · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 58°F
- RANK-UPPER #4,803
- PHOTO-FINISH ≈ N Fork Ranger S…
- PRCP-MID 32.2"
- SWING-NARROW 29°F
- COMF-TOP 80/100
- LOAD-HEAT 3,459 HDD
- STN-1 USC00046006
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: N Fork Ranger Station, CA (+ 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.
- Hot Faywood, NM 59°F
- Near N Fork Ranger S…, CA 59°F
- Near Picacho, NM 59°F
- Mt Wilson Cbs (this station) 58°F
- Cold Long Creek, SC 58°F
Climate Living Index · Mt Wilson Cbs
Mt Wilson Cbs: 84/100 · grade B
Mt Wilson Cbs publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Mt Wilson Cbs, not an official NOAA rating. Rankings still use Comfort Score 80/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 0 calendar days | 100/100 · A |
| Precipitation balance | 32.2 in · 2.8 from 35 in | 90/100 · A |
| Annual temperature balance | 58.4°F · 9.1° from 67.5°F | 71/100 · B |
| Frost-free season | 201 days/year | 65/100 · C |
Mt Wilson Cbs · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Mt Wilson Cbs is a temperate Köppen climate: Csa
Coldest-month mean 45.7°F and warmest-month mean 74.5°F place this station in temperate, dry-summer, hot summer climates (Csa). Class Csa is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: temperate, specifically temperate, dry-summer, hot summer.
- Köppen code
- Csa
- Group
- Temperate
- Warmest month
- 74.5°F
- Coldest month
- 45.7°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 Mt Wilson Cbs sits across the climate record
Three NOAA fields for Mt Wilson Cbs's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 30% warmest
- Among 6,861 stations, Mt Wilson Cbs sits in the warmer third of annual means.
- Annual precipitation
- 43rd percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Narrower than 92%
- Warmest-to-coldest month gap for Mt Wilson Cbs is compact versus 6,861 complete station-years.
How Mt Wilson Cbs compares across U.S. station-mapped locations
Mt Wilson Cbs'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
Mt Wilson Cbs's measured station temperature trend
MethodologyAcross 33 complete annual observations from 1949 to 2015, MT WILSON CBS warmed at a fitted rate of 0.45°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Mt Wilson Cbs primary station fitted change +0.45 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 56°F (13°C) | 38°F (3°C) | 47°F (8°C) | 7.7" | 8.8 | 0.0 |
| February | 55°F (13°C) | 37°F (3°C) | 46°F (8°C) | 8.3" | 9.8 | 0.0 |
| March | 59°F (15°C) | 39°F (4°C) | 49°F (9°C) | 5.1" | 8.1 | 0.0 |
| April | 63°F (17°C) | 42°F (5°C) | 52°F (11°C) | 2.0" | 6.0 | 0.0 |
| May | 70°F (21°C) | 48°F (9°C) | 59°F (15°C) | 1.1" | 1.7 | 0.2 |
| June | 79°F (26°C) | 58°F (14°C) | 68°F (20°C) | 0.2" | 0.1 | 1.7 |
| July | 85°F (29°C) | 64°F (18°C) | 74°F (24°C) | 0.2" | 0.0 | 5.0 |
| August | 85°F (30°C) | 64°F (18°C) | 75°F (24°C) | 0.0" | 0.0 | 5.9 |
| September | 81°F (27°C) | 59°F (15°C) | 70°F (21°C) | 0.3" | 0.0 | 2.9 |
| October | 72°F (22°C) | 51°F (11°C) | 62°F (16°C) | 1.3" | 0.9 | 0.0 |
| November | 63°F (17°C) | 43°F (6°C) | 53°F (12°C) | 1.9" | 4.1 | 0.0 |
| December | 55°F (13°C) | 37°F (3°C) | 46°F (8°C) | 4.0" | 10.9 | 0.0 |
The year, day by day
The calendar barely moves in Mt Wilson Cbs: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 36°F near February 12 and 85°F near July 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 36°F around February 12.
Where the wet dates fall
The likeliest wet date is February 19, when 30% of years recorded at least a hundredth of an inch. The driest is August 19 at 1%. Summed across the calendar, that is about 46 wet dates a year.
The widest day
September 7 carries the biggest normal gap between afternoon and dawn, 22°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Mt Wilson Cbs.
Where Mt Wilson Cbs Stands Nationally
Days and nights track unusually close together; the widest normal swing, about 22°F, is narrower than most stations record.
Mt Wilson Cbs earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
6.7 days with precipitation
8.6 days with precipitation
6.8 days with precipitation
4.4 days with precipitation
2.5 days with precipitation
1.0 days with precipitation
1.0 days with precipitation
0.4 days with precipitation
1.0 days with precipitation
2.9 days with precipitation
4.2 days with precipitation
6.8 days with precipitation
Mt Wilson Cbs'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 28.8°F seasonal spread.
- Wettest month
- February, 8.3"
- Driest month
- August, 0.0"
- Wettest three months
- February, January, March (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.
When it rains in Mt Wilson Cbs, it arrives in quantity
32.2" of precipitation falls across only about 46 wet days here, averaging 0.69 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 46 a year, 13% of all days
- Average depth per wet day
- 0.69 inches
- Most wet days
- February, about 9
- Fewest wet days
- August, about 0
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.
Frost Dates & Growing Season
First Fall Freeze
November 15
50% probability date
Last Spring Freeze
April 28
50% probability date
Growing Season
201 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
3,459
Higher = more heating needed
Cooling Degree Days
1,070
Higher = more cooling needed
Warmest Month
August
Coldest Month
February
Nationwide similar cities
Other rankable U.S. places outside CA closest to Mt Wilson Cbs 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 (58°F here).
- Camargo, OK 58°F · 0.0°F off
- Cornelia, GA 58°F · 0.0°F off
- Dayton, TN 58°F · 0.0°F off
- Decatur, TN 58°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (32.2" here), excluding temperature-peer places.
- Lampasas, TX 32.2" · 0.0" off
- Mapleton, IA 32.2" · 0.0" off
- Goodrich, MI 32.2" · 0.0" off
- Helena, OK 32.1" · 0.0" off
Data-derived climate profile
How Mt Wilson Cbs's climate pattern fits together
heating led · moderate · low swing
Heating is the larger measured load in Mt Wilson Cbs, at 3,459 degree days versus 1,070 for cooling. Unlike a strongly continental record, however, its 28.8°F month-to-month range is compact; persistent cool-season demand matters more than a dramatic summer-to-winter reversal.
Mt Wilson Cbs's frost-free season lasts about 201 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
Temperature varies within a narrow 28.8°F band across the normal year. August and February mark the typical warm and cold ends of the calendar. The annual average is 58°F. Monthly rows still matter, but they refine a steady profile rather than reveal two climatic extremes.
Mt Wilson Cbs's 32.2 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Snowfall is not added to the interpretation because its annual value is missing. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
These labels group NOAA 1991-2020 normals from Mt Wilson Cbs's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Mt Wilson Cbs, not an official NOAA class or a year-ahead forecast.
Questions about Mt Wilson Cbs's climate
How much rain does Mt Wilson Cbs get? ▼
How much energy does heating and cooling require in Mt Wilson Cbs? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Mt Wilson Cbs's primary station: MT WILSON CBS (USC00046006). 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 Mt Wilson Cbs; 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 Mt Wilson Cbs 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.