Montague Siskiyou County, 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 Montague Siskiyou County's primary NOAA station, MONTAGUE SISKIYOU CO AP.
The climate verdict for Montague Siskiyou County
Dryness leads the climate profile for Montague Siskiyou County, California, with 12.0 inches of precipitation a year. NOAA records an annual average of 53°F. At 52/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 24% of scores.
- 53°F
- annual average temperature (NOAA normal)
- 52/100
- comfort score, above 24% of station-mapped location scores
- 12.0"
- precipitation, annual total
- 149 days
- frost-free days per growing season
Montague Siskiyou County: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00024259 · Montague Siskiyou County, CA 53°F mean · 12.0" precip
TEMP-COOL · RANK-MID · PHOTO-FINISH · PRCP-ARID · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 53°F
- RANK-MID #3,568
- PHOTO-FINISH ≈ Union
- PRCP-ARID 12.0"
- SWING-MID 38°F
- COMF-LOW 52/100
- LOAD-HEAT 5,126 HDD
- STN-1 USW00024259
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Union, WV (+ 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.
- Montague Siskiy… (this station) 53°F
- Cold Covington Fltr…, VA 53°F
- Hot Union, WV 53°F
- Near Cubero, NM 53°F
- Near John Day, OR 53°F
Climate Living Index · Montague Siskiyou County
Montague Siskiyou County: 27/100 · grade F
Montague Siskiyou County publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Montague Siskiyou County, not an official NOAA rating. Rankings still use Comfort Score 52/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 52.8°F · 14.7° from 67.5°F | 52/100 · D |
| Frost-free season | 149 days/year | 24/100 · F |
| Precipitation balance | 12.0 in · 23.0 from 35 in | 18/100 · F |
| Normal heat + freeze calendar | 209 calendar days | 9/100 · F |
Montague Siskiyou County · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Montague Siskiyou County is a temperate Köppen climate: Csa
Coldest-month mean 35.8°F and warmest-month mean 74.0°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
- 74.0°F
- Coldest month
- 35.8°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 · heating-led station
Where Montague Siskiyou County sits across the climate record
Three NOAA fields for Montague Siskiyou County's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 52nd percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Drier than 90%
- Montague Siskiyou County's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 72%
- Warmest-to-coldest month gap for Montague Siskiyou County is compact versus 6,861 complete station-years.
How Montague Siskiyou County compares across U.S. station-mapped locations
Montague Siskiyou County's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
52 24th percentile score exceeds 24% 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%). This entry sits in this band.
- 60–70: 1,236 station-mapped locations (20%). Above this entry.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 47°F (8°C) | 26°F (-3°C) | 37°F (3°C) | 1.4" | 25.0 | 0.0 |
| February | 53°F (11°C) | 27°F (-3°C) | 40°F (4°C) | 1.4" | 21.8 | 0.0 |
| March | 58°F (15°C) | 31°F (-1°C) | 44°F (7°C) | 1.3" | 19.6 | 0.0 |
| April | 64°F (18°C) | 34°F (1°C) | 49°F (9°C) | 1.1" | 12.2 | 0.0 |
| May | 74°F (23°C) | 41°F (5°C) | 57°F (14°C) | 1.1" | 3.6 | 2.1 |
| June | 83°F (28°C) | 47°F (8°C) | 65°F (18°C) | 0.6" | 0.0 | 8.1 |
| July | 93°F (34°C) | 55°F (13°C) | 74°F (23°C) | 0.2" | 0.0 | 23.1 |
| August | 92°F (33°C) | 53°F (11°C) | 72°F (22°C) | 0.3" | 0.0 | 21.3 |
| September | 84°F (29°C) | 45°F (7°C) | 65°F (18°C) | 0.3" | 0.5 | 10.2 |
| October | 70°F (21°C) | 36°F (2°C) | 53°F (12°C) | 0.9" | 10.5 | 0.3 |
| November | 54°F (12°C) | 30°F (-1°C) | 42°F (5°C) | 1.3" | 20.0 | 0.0 |
| December | 46°F (8°C) | 26°F (-3°C) | 36°F (2°C) | 2.3" | 24.1 | 0.0 |
The year, day by day
Montague Siskiyou County works both ends of the calendar. Normal highs climb to 95°F by July 24 and hold at or above 90°F on 57 dates, then normal lows drop to freezing or below on 152 dates, bottoming at 26°F around December 20.
When the heat sits
Normal highs reach 90°F from July 3 through August 28, covering 57 dates. The broader mild season, normal highs of 70°F or more, runs May 4 to October 15.
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.
The freezing stretch
The normal low stays at or below 32°F into April 1, then returns to freezing around November 2, covering 152 dates in all.
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 December 16, when 38% of years recorded at least a hundredth of an inch. The driest is August 28 at 3%. Summed across the calendar, that is about 80 wet dates a year.
The widest day
September 1 carries the biggest normal gap between afternoon and dawn, 40°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Montague Siskiyou County.
Where Montague Siskiyou County Stands Nationally
Day-to-night contrast is extreme by national standards — the widest normal daily swing reaches about 40°F, sharper than nine in ten ranked stations see.
A drier-than-most normal water year — around 12 inches, below what four out of five ranked stations collect.
Montague Siskiyou County earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
10.6 days with precipitation
8.5 days with precipitation
10.6 days with precipitation
9.1 days with precipitation
7.1 days with precipitation
3.5 days with precipitation
1.7 days with precipitation
1.4 days with precipitation
1.5 days with precipitation
4.9 days with precipitation
9.4 days with precipitation
11.9 days with precipitation
Montague Siskiyou County's wet season runs through the cold months
December, January and February carry 42% of the year's precipitation here, while June through August contribute 9%. 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 38.2°F seasonal spread.
- Wettest month
- December, 2.3"
- Driest month
- July, 0.2"
- Wettest three months
- December, January, February (42% 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.
Montague Siskiyou County is dry, and what does fall arrives gently
Only about 80 days a year record measurable precipitation here, 22% of the calendar, and they carry 12.0" between them. At roughly 0.15 inches on an average wet day, this is not the damp drizzle of a marine climate; it is an arid record in which precipitation is both uncommon and light when it appears.
The wettest month by count is December at about 12 wet days; the driest is August at about 1.
A low per-event average in a dry record is a statement about typical days only. Arid regions can still take a large share of a year's total from a single convective storm, which a normal cannot show.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, not the extremes within it.
Frost Dates & Growing Season
First Fall Freeze
October 8
50% probability date
Last Spring Freeze
May 12
50% probability date
Growing Season
149 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,126
Higher = more heating needed
Cooling Degree Days
705
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside CA closest to Montague Siskiyou County 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 (53°F here).
- Alderson, WV 53°F · 0.0°F off
- Anacortes, WA 53°F · 0.0°F off
- Bentley, IL 53°F · 0.0°F off
- Biglerville, PA 53°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (12.0" here), excluding temperature-peer places.
- Kremmling, CO 12.0" · 0.0" off
- Williams, AZ 12.0" · 0.0" off
- Chelan, WA 12.0" · 0.0" off
- Jackson, MT 11.9" · 0.0" off
Scarce-water calendar
Where Montague Siskiyou County's limited precipitation lands
heating led · dry · mid swing
Montague Siskiyou County's energy balance leans toward cold weather: 5,126 annual heating degree days against 705 for cooling. Its 38.2°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 149 days are frost-free in a normal year. That short interval is consistent with the cold-season signal, but the measure does not predict the exact first or last freeze in any one year.
July and December mark the typical warm and cold ends of the calendar in Montague Siskiyou County's middle-range seasonal profile. The measured spread is 38.2°F. The annual average is 53°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Montague Siskiyou County's cold-season load does not imply a wet climate. Annual precipitation is 12.0 inches, which places the station in PlainClimate's dry range. Snowfall is not added to the interpretation because its annual value is missing. The snowfall and rainfall fields should be read separately rather than inferred from temperature.
Montague Siskiyou County wettest normal
December
December concentrates the scarce annual total (12.0 inches).
Montague Siskiyou County driest normal
July
July is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Montague Siskiyou County's climate
How dry is Montague Siskiyou County? ▼
How many days above 90°F does Montague Siskiyou County get? ▼
How much energy does heating and cooling require in Montague Siskiyou County? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Montague Siskiyou County's primary station: MONTAGUE SISKIYOU CO AP (USW00024259). 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 Montague Siskiyou County; 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 Montague Siskiyou County 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.