Moccasin Exp Stn, 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 Moccasin Exp Stn's primary NOAA station, MOCCASIN EXP STN.
The climate verdict for Moccasin Exp Stn
Dryness leads the climate profile for Moccasin Exp Stn, Montana, with 15.1 inches of precipitation a year. NOAA records an annual average of 44°F. At 39/100 (below average) the climate comfort score falls in the bottom third of the station-mapped U.S. score corpus, exceeding only 4% of scores.
- 44°F
- average temperature, NOAA 1991-2020 normal
- 39/100
- comfort score, above 4% of station-mapped location scores
- 15.1"
- annual precipitation · 45" snow
- 115 days
- growing season, frost-free days
Moccasin Exp Stn: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00245761 · Moccasin Exp Stn, MT 44°F mean · 15.1" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 44°F
- RANK-COOL #892
- PHOTO-FINISH ≈ Ryegate
- PRCP-DRY 15.1"
- SWING-MID 41°F
- COMF-LOW 39/100
- LOAD-HEAT 8,074 HDD
- STN-1 USC00245761
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Ryegate, MT (+ 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.
- Moccasin (this station) 44°F
- Hot Diversion Dam, WY 44°F
- Near Ryegate, MT 44°F
- Cold Plymouth, NH 43°F
- Near East Hiram, ME 43°F
Moccasin Exp Stn 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 · Moccasin Exp Stn
Moccasin Exp Stn: 16/100 · grade F
Moccasin Exp Stn publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Moccasin Exp Stn, not an official NOAA rating. Rankings still use Comfort Score 39/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 15.1 in · 19.9 from 35 in | 29/100 · F |
| Snowfall burden | 44.5 inches/year | 24/100 · F |
| Annual temperature balance | 43.5°F · 24.0° from 67.5°F | 14/100 · F |
| Normal heat + freeze calendar | 202 calendar days | 13/100 · F |
| Frost-free season | 115 days/year | 5/100 · F |
Moccasin Exp Stn · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Moccasin Exp Stn's normals sit in a dry climate class: BSk
Precipitation is low relative to temperature but above true desert thresholds: cold semi-arid steppe (BSk). Class BSk is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically cold semi-arid steppe.
- Köppen code
- BSk
- Group
- Dry (arid or semi-arid)
- Warmest month
- 66.0°F
- Coldest month
- 24.9°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 Moccasin Exp Stn sits across the climate record
Three NOAA fields for Moccasin Exp Stn's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 87%
- Among 6,861 stations, Moccasin Exp Stn sits in the cooler third of annual means.
- Annual precipitation
- Drier than 82%
- Moccasin Exp Stn's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 41st percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Moccasin Exp Stn compares across U.S. station-mapped locations
Moccasin Exp Stn's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
39 4th percentile score exceeds 4% 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%). This entry sits in this band.
- 40–50: 1,113 station-mapped locations (18%). Above this entry.
- 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
Moccasin Exp Stn's measured station temperature trend
MethodologyAcross 96 complete annual observations from 1911 to 2015, MOCCASIN EXP STN warmed at a fitted rate of 0.18°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Moccasin Exp Stn primary station fitted change +0.18 °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 | 37°F (3°C) | 13°F (-11°C) | 25°F (-4°C) | 0.5" | 8.1" | 28.5 | 0.0 |
| February | 38°F (3°C) | 14°F (-10°C) | 26°F (-4°C) | 0.4" | 5.9" | 25.8 | 0.0 |
| March | 45°F (7°C) | 20°F (-7°C) | 33°F (0°C) | 0.6" | 6.7" | 26.7 | 0.0 |
| April | 53°F (12°C) | 28°F (-2°C) | 41°F (5°C) | 1.4" | 7.5" | 20.5 | 0.0 |
| May | 62°F (17°C) | 37°F (3°C) | 50°F (10°C) | 2.6" | 1.7" | 7.5 | 0.0 |
| June | 71°F (22°C) | 45°F (7°C) | 58°F (14°C) | 2.7" | 0.0" | 0.3 | 0.4 |
| July | 82°F (28°C) | 50°F (10°C) | 66°F (19°C) | 1.6" | 0.0" | 0.0 | 6.7 |
| August | 82°F (28°C) | 50°F (10°C) | 66°F (19°C) | 1.7" | 0.0" | 0.2 | 6.0 |
| September | 71°F (22°C) | 41°F (5°C) | 56°F (13°C) | 1.5" | 0.2" | 2.9 | 1.7 |
| October | 57°F (14°C) | 31°F (-1°C) | 44°F (7°C) | 1.1" | 3.1" | 16.5 | 0.1 |
| November | 45°F (7°C) | 21°F (-6°C) | 33°F (0°C) | 0.5" | 5.5" | 24.3 | 0.0 |
| December | 37°F (3°C) | 14°F (-10°C) | 25°F (-4°C) | 0.4" | 5.8" | 29.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 85°F around July 29, short of 90°F on every date, while 202 dates carry a normal low at or below freezing, the coldest 12°F near December 24.
The freezing stretch
The normal low stays at or below 32°F into April 30, then returns to freezing around October 12, covering 202 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 44% of years recorded at least a hundredth of an inch. The driest is January 27 at 18%. Summed across the calendar, that is about 99 wet dates a year.
The widest day
July 29 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 Moccasin Exp Stn.
Where Moccasin Exp Stn Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 202 nights a year, placing this among the most frost-prone tenth of ranked stations.
A drier-than-most normal water year — around 15 inches, below what four out of five ranked stations collect.
Moccasin Exp Stn 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: 8.1"
5.7 days with precipitation
Snow: 5.9"
5.6 days with precipitation
Snow: 6.7"
7.1 days with precipitation
Snow: 7.5"
10.4 days with precipitation
Snow: 1.7"
12.8 days with precipitation
12.3 days with precipitation
8.9 days with precipitation
8.6 days with precipitation
Snow: 0.2"
7.3 days with precipitation
Snow: 3.1"
7.8 days with precipitation
Snow: 5.5"
6.1 days with precipitation
Snow: 5.8"
6.4 days with precipitation
Moccasin Exp Stn runs a summer-peaked wet season
40% of Moccasin Exp Stn's yearly precipitation falls in June, July and August alone, against the 25% an evenly spread year would give those three months. The wettest month is June at 2.7", on a 41.1°F seasonal spread. Warm-season convection and, across the Southwest, the North American monsoon produce this shape: rain arrives in short heavy bursts during the hottest part of the year rather than as long cool-season soaking.
- Wettest three months: June, May, August, taking 47% of the annual total between them.
- Driest month: February at 0.4".
- Winter share: 8% falls in December, January and February.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A summer-peaked label means the June-August share reaches 35%; it describes timing across an average year, not any single season, and says nothing about how heavy an individual storm can be.
Moccasin Exp Stn is dry, and what does fall arrives gently
Only about 99 days a year record measurable precipitation here, 27% of the calendar, and they carry 15.1" 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 May at about 13 wet days; the driest is February at about 6.
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 Moccasin Exp Stn
Moccasin Exp Stn averages 44.5 inches of snowfall a year, with January the snowiest month on the normals, spread across roughly 32 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: 44.5 inches of depth.
- Days recording measurable snow: about 32 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 29% 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 20
50% probability date
Last Spring Freeze
May 28
50% probability date
Growing Season
115 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
8,074
Higher = more heating needed
Cooling Degree Days
249
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MT closest to Moccasin Exp Stn 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 (44°F here).
- Alpena, MI 44°F · 0.0°F off
- Amery, WI 44°F · 0.0°F off
- Blanca, CO 44°F · 0.0°F off
- Cross Village, MI 44°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (15.1" here), excluding temperature-peer places.
- Jemez Springs, NM 15.2" · 0.0" off
- Monument, OR 15.1" · 0.0" off
- Palo Alto, CA 15.1" · 0.0" off
- Gila Hot Springs, NM 15.2" · 0.0" off
Snow and freeze rhythm
When cold and snow define Moccasin Exp Stn
heating led · dry · mid swing
Moccasin Exp Stn's energy balance leans toward cold weather: 8,074 annual heating degree days against 249 for cooling. Its 41.1°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 115 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. Moccasin Exp Stn coldest normal
January
Averaging 25°F (-4°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Moccasin Exp Stn typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Moccasin Exp Stn snow peak
January
Moccasin Exp Stn averages 44.5 inches of snow a year, with January the snowiest month on the normals.
Questions about Moccasin Exp Stn's climate
How much snow does Moccasin Exp Stn get? ▼
How cold does Moccasin Exp Stn get in winter? ▼
How much energy does heating and cooling require in Moccasin Exp Stn? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Moccasin Exp Stn's primary station: MOCCASIN EXP STN (USC00245761). 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 Moccasin Exp Stn; 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 Moccasin Exp Stn 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.