Norris Madison Pwr House, MT Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
30-year climate normals (1991-2020) from Norris Madison Pwr House's primary NOAA station, NORRIS MADISON PWR HOUSE.
The climate verdict for Norris Madison Pwr House
Dryness leads the climate profile for Norris Madison Pwr House, Montana, with 18.4 inches of precipitation a year. NOAA records an annual average of 49°F. At 44/100 (moderate) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 10% of scores.
- 49°F
- yearly average temperature, NOAA normal
- 44/100
- comfort score, above 10% of station-mapped location scores
- 18.4"
- annual precipitation · 52" snow
- 163 days
- growing season, frost-free days
Norris Madison Pwr House: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00246157 · Norris Madison Pwr House, MT 49°F mean · 18.4" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 49°F
- RANK-COOL #2,470
- PHOTO-FINISH ≈ Manti
- PRCP-DRY 18.4"
- SWING-MID 41°F
- COMF-LOW 44/100
- LOAD-HEAT 6,262 HDD
- STN-1 USC00246157
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Manti, UT (+ 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.
- Norris Madison… (this station) 49°F
- Cold N Foster, RI 49°F
- Hot Chaco Canyon Na…, NM 49°F
- Near Manti, UT 49°F
- Near Mosquito Creek…, OH 49°F
Norris Madison Pwr House 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 · Norris Madison Pwr House
Norris Madison Pwr House: 41/100 · grade D
Norris Madison Pwr House publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Norris Madison Pwr House, not an official NOAA rating. Rankings still use Comfort Score 44/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 135 calendar days | 56/100 · C |
| Precipitation balance | 18.4 in · 16.6 from 35 in | 41/100 · D |
| Annual temperature balance | 49.2°F · 18.3° from 67.5°F | 37/100 · F |
| Frost-free season | 163 days/year | 36/100 · F |
| Snowfall burden | 51.8 inches/year | 20/100 · F |
Norris Madison Pwr House · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Norris Madison Pwr House is a continental Köppen climate: Dfb
Coldest-month mean 30.8°F and warmest-month mean 71.3°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
- 71.3°F
- Coldest month
- 30.8°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 Norris Madison Pwr House sits across the climate record
Three NOAA fields for Norris Madison Pwr House's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 36th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Drier than 75%
- Norris Madison Pwr House's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 38th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Norris Madison Pwr House compares across U.S. station-mapped locations
Norris Madison Pwr House's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
44 10th percentile score exceeds 10% 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
Norris Madison Pwr House's measured station temperature trend
MethodologyAcross 96 complete annual observations from 1908 to 2025, NORRIS MADISON PWR HOUSE warmed at a fitted rate of 0.20°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Norris Madison Pwr House primary station fitted change +0.20 °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 | 39°F (4°C) | 24°F (-5°C) | 31°F (0°C) | 0.5" | 7.1" | 25.3 | 0.0 |
| February | 42°F (5°C) | 25°F (-4°C) | 33°F (1°C) | 0.7" | 12.9" | 22.0 | 0.0 |
| March | 50°F (10°C) | 30°F (-1°C) | 40°F (4°C) | 1.2" | 7.1" | 18.3 | 0.0 |
| April | 57°F (14°C) | 36°F (2°C) | 46°F (8°C) | 2.3" | 5.3" | 10.6 | 0.0 |
| May | 66°F (19°C) | 43°F (6°C) | 55°F (13°C) | 3.0" | 1.6" | 1.8 | 0.1 |
| June | 75°F (24°C) | 50°F (10°C) | 63°F (17°C) | 3.2" | 0.0" | 0.0 | 1.2 |
| July | 85°F (30°C) | 57°F (14°C) | 71°F (22°C) | 1.3" | 0.0" | 0.0 | 9.6 |
| August | 85°F (29°C) | 56°F (13°C) | 71°F (21°C) | 1.4" | 0.0" | 0.0 | 8.5 |
| September | 75°F (24°C) | 49°F (9°C) | 62°F (17°C) | 1.4" | 0.0" | 0.5 | 1.2 |
| October | 60°F (16°C) | 39°F (4°C) | 50°F (10°C) | 1.7" | 2.7" | 6.5 | 0.0 |
| November | 47°F (8°C) | 30°F (-1°C) | 38°F (4°C) | 0.8" | 5.4" | 17.1 | 0.0 |
| December | 38°F (3°C) | 24°F (-5°C) | 31°F (-1°C) | 0.8" | 9.7" | 25.1 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 88°F around July 26, short of 90°F on every date, while 135 dates carry a normal low at or below freezing, the coldest 23°F near December 21.
The freezing stretch
The normal low stays at or below 32°F into March 22, then returns to freezing around November 9, covering 135 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 May 30, when 41% of years recorded at least a hundredth of an inch. The driest is January 17 at 17%. Summed across the calendar, that is about 91 wet dates a year.
The widest day
August 2 carries the biggest normal gap between afternoon and dawn, 29°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Norris Madison Pwr House.
Monthly Precipitation
Average monthly rainfall and snowfall
Snow: 7.1"
4.9 days with precipitation
Snow: 12.9"
5.9 days with precipitation
Snow: 7.1"
6.9 days with precipitation
Snow: 5.3"
10.2 days with precipitation
Snow: 1.6"
11.6 days with precipitation
11.4 days with precipitation
7.0 days with precipitation
6.9 days with precipitation
5.9 days with precipitation
Snow: 2.7"
7.7 days with precipitation
Snow: 5.4"
5.8 days with precipitation
Snow: 9.7"
6.1 days with precipitation
Norris Madison Pwr House spreads its precipitation across the year
Neither half of the year dominates here: June through August take 32% of the annual total and December through February 11%, with neither reaching the 35% that would mark a distinct wet season. Norris Madison Pwr House has no dry season to plan around, though it does carry a 40.5°F seasonal spread.
The gap between the wettest and driest month still matters: June averages 3.2" and January 0.5". The three wettest months together take 46% 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.
How Norris Madison Pwr House's precipitation splits across the calendar
About 90 days a year record measurable precipitation here, carrying 18.4" between them, or roughly 0.20 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.
Winter brings real snow to Norris Madison Pwr House
Norris Madison Pwr House averages 51.8 inches of snowfall a year, with February the snowiest month on the normals, spread across roughly 18 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: 51.8 inches of depth.
- Days recording measurable snow: about 18 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 28% 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 10
50% probability date
Last Spring Freeze
April 30
50% probability date
Growing Season
163 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
6,262
Higher = more heating needed
Cooling Degree Days
523
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside MT closest to Norris Madison Pwr House 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 (49°F here).
- Battle Creek, MI 49°F · 0.0°F off
- Beaconsfield, IA 49°F · 0.0°F off
- Black Forest, CO 49°F · 0.0°F off
- Council, ID 49°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (18.4" here), excluding temperature-peer places.
- Hulett, WY 18.4" · 0.0" off
- Lodi, CA 18.4" · 0.0" off
- Boise City, OK 18.3" · 0.0" off
- Lubbock, TX 18.3" · 0.0" off
Snow and freeze rhythm
When cold and snow define Norris Madison Pwr House
heating led · dry · mid swing
Norris Madison Pwr House's energy balance leans toward cold weather: 6,262 annual heating degree days against 523 for cooling. Its 40.5°F seasonal range still makes the monthly rows more useful than the annual average alone.
Norris Madison Pwr House's frost-free season lasts about 163 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Norris Madison Pwr House coldest normal
December
The monthly mean of 31°F (-1°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. Norris Madison Pwr House typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Norris Madison Pwr House snow peak
February
Norris Madison Pwr House averages 51.8 inches of snow a year, with February the snowiest month on the normals.
Questions about Norris Madison Pwr House's climate
How much snow does Norris Madison Pwr House get? ▼
How cold does Norris Madison Pwr House get in winter? ▼
How much energy does heating and cooling require in Norris Madison Pwr House? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Norris Madison Pwr House's primary station: NORRIS MADISON PWR HOUSE (USC00246157). 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 Norris Madison Pwr House; 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 Norris Madison Pwr House 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.