Red Bluff Muni, 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 Red Bluff Muni's primary NOAA station, RED BLUFF MUNI AP.
The climate verdict for Red Bluff Muni
Red Bluff Muni, California has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 63°F. It scores 96/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 96% of them.
- 63°F
- average temperature, NOAA 1991-2020 normal
- 96/100
- comfort score, above 96% of station-mapped location scores
- 23.1"
- yearly precipitation total
- 280 days
- frost-free growing season
Red Bluff Muni: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00024216 · Red Bluff Muni, CA 63°F mean · 23.1" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-TOP · LOAD-MIX · STN-1 · BOOK-FULL
- TEMP-MILD 63°F
- RANK-UPPER #5,763
- PHOTO-FINISH ≈ Aliceville
- PRCP-DRY 23.1"
- SWING-MID 35°F
- COMF-TOP 96/100
- LOAD-MIX H/C balanced
- STN-1 USW00024216
- 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.
- Red Bluff (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 · Red Bluff Muni
Red Bluff Muni: 81/100 · grade B
Red Bluff Muni publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals · NOAA hourly normals); 1 missing weight rescale to 100.
PlainClimate-derived for Red Bluff Muni, not an official NOAA rating. Rankings still use Comfort Score 96/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Frost-free season | 280 days/year | 97/100 · A |
| Summer moisture balance | 49.7°F mean dew point | 90/100 · A |
| Annual temperature balance | 63.3°F · 4.2° from 67.5°F | 87/100 · A |
| Normal heat + freeze calendar | 100 calendar days | 76/100 · B |
| Precipitation balance | 23.1 in · 11.9 from 35 in | 58/100 · C |
Red Bluff Muni · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Red Bluff Muni is a temperate Köppen climate: Csa
Coldest-month mean 46.8°F and warmest-month mean 82.0°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
- 82.0°F
- Coldest month
- 46.8°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 Red Bluff Muni sits across the climate record
Three NOAA fields for Red Bluff Muni'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, Red Bluff Muni sits in the warmer third of annual means.
- Annual precipitation
- 32nd percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- Narrower than 82%
- Warmest-to-coldest month gap for Red Bluff Muni is compact versus 6,861 complete station-years.
How Red Bluff Muni compares across U.S. station-mapped locations
Red Bluff Muni's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
96 Top 4% score exceeds 96% 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%). Below this entry.
- 90–100: 564 station-mapped locations (9%). This entry sits in this band.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Red Bluff Muni's measured station temperature trend
MethodologyAcross 142 complete annual observations from 1872 to 2025, RED BLUFF MUNI AP cooled at a fitted rate of 0.13°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Red Bluff Muni primary station fitted change -0.13 °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 | 57°F (14°C) | 38°F (3°C) | 47°F (9°C) | 4.7" | 5.9 | 0.0 |
| February | 61°F (16°C) | 41°F (5°C) | 51°F (10°C) | 4.2" | 3.0 | 0.0 |
| March | 66°F (19°C) | 44°F (7°C) | 55°F (13°C) | 2.9" | 0.6 | 0.0 |
| April | 72°F (22°C) | 47°F (8°C) | 60°F (15°C) | 1.6" | 0.1 | 1.0 |
| May | 82°F (28°C) | 55°F (13°C) | 68°F (20°C) | 1.3" | 0.0 | 7.6 |
| June | 91°F (33°C) | 62°F (17°C) | 76°F (25°C) | 0.4" | 0.0 | 17.9 |
| July | 98°F (37°C) | 66°F (19°C) | 82°F (28°C) | 0.1" | 0.0 | 28.0 |
| August | 96°F (36°C) | 64°F (18°C) | 80°F (27°C) | 0.1" | 0.0 | 26.4 |
| September | 91°F (33°C) | 59°F (15°C) | 75°F (24°C) | 0.2" | 0.0 | 18.7 |
| October | 79°F (26°C) | 51°F (11°C) | 65°F (18°C) | 1.0" | 0.0 | 4.3 |
| November | 64°F (18°C) | 43°F (6°C) | 53°F (12°C) | 2.5" | 1.8 | 0.0 |
| December | 56°F (13°C) | 38°F (3°C) | 47°F (8°C) | 4.2" | 7.2 | 0.0 |
The year, day by day
The year in Red Bluff Muni runs from a mild 37°F around December 22 to 99°F at the peak near July 18, and the normal low never reaches freezing on any date in the record.
When the heat sits
Normal highs reach 90°F from June 14 through September 21, covering 100 dates. The broader mild season, normal highs of 70°F or more, runs April 10 to November 2.
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 37°F around December 22.
Where the wet dates fall
The likeliest wet date is December 18, when 35% of years recorded at least a hundredth of an inch. The driest is July 25 at 1%. Summed across the calendar, that is about 68 wet dates a year.
The widest day
August 30 carries the biggest normal gap between afternoon and dawn, 33°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Red Bluff Muni.
Where Red Bluff Muni Stands Nationally
Summers here run among the most heat-heavy normals calendars in the country: on about 100 days a year the normal daily high itself reaches 90°F — a count fewer than one station in ten exceeds.
Daily temperature swings run wider than most of the country, peaking near 33°F between the normal high and low.
Red Bluff Muni earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
10.3 days with precipitation
9.5 days with precipitation
9.7 days with precipitation
6.6 days with precipitation
5.4 days with precipitation
2.4 days with precipitation
0.3 days with precipitation
0.4 days with precipitation
1.1 days with precipitation
4.0 days with precipitation
7.4 days with precipitation
11.0 days with precipitation
Red Bluff Muni's wet season runs through the cold months
December, January and February carry 57% of the year's precipitation here, while June through August contribute 2%. 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 35.2°F seasonal spread.
- Wettest month
- January, 4.7"
- Driest month
- August, 0.1"
- Wettest three months
- January, December, February (57% 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 Red Bluff Muni's precipitation splits across the calendar
About 68 days a year record measurable precipitation here, carrying 23.1" between them, or roughly 0.34 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
November 29
50% probability date
Last Spring Freeze
February 22
50% probability date
Growing Season
280 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
2,525
Higher = more heating needed
Cooling Degree Days
1,926
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Humidity & Wind
Monthly averages from hourly observations
| Month | Humidity | Wind (mph) | Clear Sky % | Overcast % |
|---|---|---|---|---|
| January | 69% | 7.2 | 57% | 29% |
| February | 63% | 8.9 | 52% | 27% |
| March | 57% | 8.9 | 59% | 19% |
| April | 47% | 8.6 | 65% | 14% |
| May | 43% | 8.1 | 71% | 10% |
| June | 37% | 7.7 | 86% | 3% |
| July | 39% | 6.5 | 91% | 1% |
| August | 36% | 6.8 | 89% | 1% |
| September | 40% | 7.1 | 83% | 4% |
| October | 52% | 7.3 | 70% | 15% |
| November | 67% | 7.4 | 58% | 25% |
| December | 72% | 7.3 | 56% | 31% |
Nationwide similar cities
Other rankable U.S. places outside CA closest to Red Bluff Muni 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 (23.1" here), excluding temperature-peer places.
- Forman, ND 23.2" · 0.1" off
- Norton, KS 23.1" · 0.1" off
- Winner, SD 23.2" · 0.1" off
- Baudette, MN 23.2" · 0.1" off
Data-derived climate profile
How Red Bluff Muni's climate pattern fits together
mixed demand · moderate · mid swing
July and December mark the typical warm and cold ends of the calendar in Red Bluff Muni's middle-range seasonal profile. The measured spread is 35.2°F. The annual average is 63°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Heating and cooling both register in Red Bluff Muni's normal, at 2,525 and 1,926 degree days respectively. Neither total exceeds the other by more than two to one, so the record is better read as a mixed-demand calendar than as heating-led or cooling-led.
The frost-free window extends for about 280 days. That is a long calendar measure, but it is not a forecast and does not combine heat, rainfall, soil, or local elevation into a planting recommendation.
Red Bluff Muni's 23.1 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 Red Bluff Muni's primary station, where heating and cooling demand are close enough that neither season sets the character on its own. On a balanced station like Red Bluff Muni, the bands are descriptive ranges rather than an official NOAA classification or a forecast.
Questions about Red Bluff Muni's climate
How much rain does Red Bluff Muni get? ▼
How many days above 90°F does Red Bluff Muni get? ▼
How much energy does heating and cooling require in Red Bluff Muni? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Red Bluff Muni's primary station: RED BLUFF MUNI AP (USW00024216). 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 Red Bluff Muni; 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 Red Bluff Muni 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.