Eureka Ranger Station, MT 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 Eureka Ranger Station's primary NOAA station, EUREKA RS.
The climate verdict for Eureka Ranger Station
Dryness leads the climate profile for Eureka Ranger Station, Montana, with 15.0 inches of precipitation a year. NOAA records an annual average of 47°F. At 49/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 18% of scores.
- 47°F
- average temperature, NOAA 1991-2020 normal
- 49/100
- comfort score, above 18% of station-mapped location scores
- 15.0"
- annual precipitation · 35" snow
- 139 days
- frost-free growing season
Eureka Ranger Station: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00242827 · Eureka Ranger Station, MT 47°F mean · 15.0" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 47°F
- RANK-COOL #1,852
- PHOTO-FINISH ≈ Montague
- PRCP-DRY 15.0"
- SWING-MID 44°F
- COMF-LOW 49/100
- LOAD-HEAT 6,948 HDD
- STN-1 USC00242827
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Montague, MI (+ 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 MT station list.
- Eureka Ranger S… (this station) 47°F
- Cold Cheyenne, WY 47°F
- Hot Montague, MI 47°F
- Near Canton, PA 47°F
- Near Titusville Wtr…, PA 47°F
Eureka Ranger Station sits in Montana, the #6 coldest U.S. state at 43.4°F statewide annual average - see all 50 coldest states ranked by NOAA normals
Climate Living Index · Eureka Ranger Station
Eureka Ranger Station: 30/100 · grade F
Eureka Ranger Station publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Eureka Ranger Station, not an official NOAA rating. Rankings still use Comfort Score 49/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 161 calendar days | 39/100 · F |
| Snowfall burden | 35.1 inches/year | 33/100 · F |
| Precipitation balance | 15.0 in · 20.0 from 35 in | 28/100 · F |
| Annual temperature balance | 47.0°F · 20.5° from 67.5°F | 27/100 · F |
| Frost-free season | 139 days/year | 18/100 · F |
Eureka Ranger Station · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Eureka Ranger Station is a continental Köppen climate: Dfb
Coldest-month mean 25.8°F and warmest-month mean 69.6°F place this station in continental, no dry season, warm summer climates (Dfb). Class Dfb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, no dry season, warm summer.
- Köppen code
- Dfb
- Group
- Continental
- Warmest month
- 69.6°F
- Coldest month
- 25.8°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 Eureka Ranger Station sits across the climate record
Three NOAA fields for Eureka Ranger Station's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 73%
- Among 6,861 stations, Eureka Ranger Station sits in the cooler third of annual means.
- Annual precipitation
- Drier than 83%
- Eureka Ranger Station's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 52nd percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Eureka Ranger Station compares across U.S. station-mapped locations
Eureka Ranger Station's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
49 18th percentile score exceeds 18% 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%). This entry sits in this band.
- 50–60: 1,329 station-mapped locations (21%). Above this entry.
- 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
Eureka Ranger Station's measured station temperature trend
MethodologyAcross 50 complete annual observations from 1961 to 2024, EUREKA RS warmed at a fitted rate of 0.33°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Eureka Ranger Station primary station fitted change +0.33 °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 | 32°F (0°C) | 19°F (-7°C) | 26°F (-3°C) | 0.9" | 8.5" | 27.0 | 0.0 |
| February | 39°F (4°C) | 21°F (-6°C) | 30°F (-1°C) | 0.7" | 5.9" | 24.3 | 0.0 |
| March | 49°F (10°C) | 28°F (-2°C) | 38°F (3°C) | 0.9" | 3.7" | 22.0 | 0.0 |
| April | 60°F (15°C) | 34°F (1°C) | 47°F (8°C) | 1.0" | 1.0" | 13.5 | 0.0 |
| May | 70°F (21°C) | 42°F (5°C) | 56°F (13°C) | 1.8" | 0.2" | 3.7 | 0.3 |
| June | 77°F (25°C) | 49°F (9°C) | 63°F (17°C) | 2.5" | 0.0" | 0.1 | 2.2 |
| July | 87°F (30°C) | 53°F (12°C) | 70°F (21°C) | 1.1" | 0.0" | 0.0 | 11.4 |
| August | 86°F (30°C) | 51°F (11°C) | 69°F (20°C) | 1.1" | 0.0" | 0.0 | 11.2 |
| September | 75°F (24°C) | 44°F (7°C) | 59°F (15°C) | 1.3" | 0.0" | 2.3 | 1.3 |
| October | 57°F (14°C) | 35°F (2°C) | 46°F (8°C) | 1.2" | 0.6" | 12.8 | 0.0 |
| November | 41°F (5°C) | 27°F (-3°C) | 34°F (1°C) | 1.2" | 5.0" | 20.0 | 0.0 |
| December | 31°F (0°C) | 21°F (-6°C) | 26°F (-3°C) | 1.2" | 10.2" | 27.1 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 90°F around July 28, short of 90°F on every date, while 161 dates carry a normal low at or below freezing, the coldest 19°F near January 2.
The freezing stretch
The normal low stays at or below 32°F into April 3, then returns to freezing around October 26, covering 161 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 June 4, when 36% of years recorded at least a hundredth of an inch. The driest is August 8 at 17%. Summed across the calendar, that is about 103 wet dates a year.
The widest day
August 1 carries the biggest normal gap between afternoon and dawn, 36°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Eureka Ranger Station.
Where Eureka Ranger Station Stands Nationally
A drier-than-most normal water year — around 15 inches, below what four out of five ranked stations collect.
Daily temperature swings run wider than most of the country, peaking near 36°F between the normal high and low.
Eureka Ranger Station 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
Snow: 8.5"
10.5 days with precipitation
Snow: 5.9"
7.8 days with precipitation
Snow: 3.7"
8.8 days with precipitation
Snow: 1.0"
8.5 days with precipitation
Snow: 0.2"
9.9 days with precipitation
10.4 days with precipitation
6.6 days with precipitation
5.2 days with precipitation
6.7 days with precipitation
Snow: 0.6"
8.6 days with precipitation
Snow: 5.0"
9.3 days with precipitation
Snow: 10.2"
10.2 days with precipitation
Eureka Ranger Station spreads its precipitation across the year
Neither half of the year dominates here: June through August take 31% of the annual total and December through February 19%, with neither reaching the 35% that would mark a distinct wet season. Eureka Ranger Station has no dry season to plan around, though it does carry a 43.8°F seasonal spread.
The gap between the wettest and driest month still matters: June averages 2.5" and February 0.7". The three wettest months together take 37% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
Eureka Ranger Station is dry, and what does fall arrives gently
Only about 103 days a year record measurable precipitation here, 28% of the calendar, and they carry 15.0" 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 January at about 11 wet days; the driest is August at about 5.
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.
Winter brings real snow to Eureka Ranger Station
Eureka Ranger Station averages 35.1 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 22 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: 35.1 inches of depth.
- Days recording measurable snow: about 22 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 23% 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
September 27
50% probability date
Last Spring Freeze
May 11
50% probability date
Growing Season
139 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,948
Higher = more heating needed
Cooling Degree Days
400
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MT closest to Eureka Ranger Station 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 (47°F here).
- Alma, MI 47°F · 0.0°F off
- Anamosa, IA 47°F · 0.0°F off
- Audubon, IA 47°F · 0.0°F off
- Bly, OR 47°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (15.0" here), excluding temperature-peer places.
- Ellicott, CO 15.0" · 0.0" off
- Santa Rosa, NM 15.0" · 0.0" off
- Yoder, WY 15.0" · 0.0" off
- Bickleton, WA 15.0" · 0.0" off
Snow and freeze rhythm
When cold and snow define Eureka Ranger Station
heating led · dry · mid swing
Eureka Ranger Station's energy balance leans toward cold weather: 6,948 annual heating degree days against 400 for cooling. Its 43.8°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 139 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.
-
1. Eureka Ranger Station coldest normal
January
The monthly mean of 26°F (-3°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. Eureka Ranger Station typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Eureka Ranger Station snow peak
December
Eureka Ranger Station averages 35.1 inches of snow a year, with December the snowiest month on the normals.
Questions about Eureka Ranger Station's climate
How much snow does Eureka Ranger Station get? ▼
How cold does Eureka Ranger Station get in winter? ▼
How much energy does heating and cooling require in Eureka Ranger Station? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Eureka Ranger Station's primary station: EUREKA RS (USC00242827). 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 Eureka Ranger Station; 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 Eureka Ranger Station 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.