Biddle, MT Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: climate measurements used in PlainClimate's documented score
30-year climate normals (1991-2020) from Biddle's primary NOAA station, BIDDLE 8 SW.
The climate verdict for Biddle
Dryness leads the climate profile for Biddle, Montana, with 15.3 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
- 15.3"
- annual precipitation · 35" snow
- 137 days
- frost-free days per growing season
Biddle: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00240743 · Biddle, MT 47°F mean · 15.3" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-WIDE · COMF-LOW · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 47°F
- RANK-COOL #1,990
- PHOTO-FINISH ≈ Swan Lake
- PRCP-DRY 15.3"
- SWING-WIDE 48°F
- COMF-LOW 49/100
- LOAD-HEAT 7,048 HDD
- STN-1 USC00240743
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Swan Lake, NE (+ 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.
- Hot Grinnell, IA 48°F
- Near Taylor, NE 48°F
- Biddle (this station) 47°F
- Cold Lone Rock Tri C…, WI 47°F
- Near Swan Lake, NE 47°F
Biddle 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 · Biddle
Biddle: 22/100 · grade F
Biddle publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Biddle, not an official NOAA rating. Rankings still use Comfort Score 49/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Snowfall burden | 35.2 inches/year | 33/100 · F |
| Annual temperature balance | 47.4°F · 20.1° from 67.5°F | 29/100 · F |
| Precipitation balance | 15.3 in · 19.8 from 35 in | 29/100 · F |
| Frost-free season | 137 days/year | 17/100 · F |
| Normal heat + freeze calendar | 207 calendar days | 10/100 · F |
Biddle · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Biddle'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
- 73.2°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 Biddle sits across the climate record
Three NOAA fields for Biddle's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 71%
- Among 6,861 stations, Biddle sits in the cooler third of annual means.
- Annual precipitation
- Drier than 82%
- Biddle's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Wider than 75%
- Warmest-to-coldest month gap for Biddle is large versus 6,861 complete station-years.
How Biddle compares across U.S. station-mapped locations
Biddle'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
Biddle's measured station temperature trend
MethodologyAcross 44 complete annual observations from 1966 to 2025, BIDDLE 8 SW warmed at a fitted rate of 0.35°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Biddle primary station fitted change +0.35 °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 (-10°C) | 25°F (-4°C) | 0.4" | 4.6" | 29.9 | 0.0 |
| February | 39°F (4°C) | 15°F (-9°C) | 27°F (-3°C) | 0.5" | 5.7" | 26.5 | 0.0 |
| March | 50°F (10°C) | 24°F (-5°C) | 37°F (3°C) | 0.8" | 5.8" | 25.3 | 0.0 |
| April | 59°F (15°C) | 32°F (0°C) | 45°F (7°C) | 1.8" | 5.6" | 15.6 | 0.0 |
| May | 68°F (20°C) | 41°F (5°C) | 55°F (13°C) | 3.0" | 1.3" | 4.9 | 0.4 |
| June | 79°F (26°C) | 50°F (10°C) | 65°F (18°C) | 2.3" | 0.0" | 0.1 | 3.7 |
| July | 89°F (32°C) | 57°F (14°C) | 73°F (23°C) | 1.8" | 0.0" | 0.0 | 15.8 |
| August | 88°F (31°C) | 55°F (13°C) | 72°F (22°C) | 1.1" | 0.0" | 0.1 | 15.3 |
| September | 78°F (25°C) | 46°F (8°C) | 62°F (17°C) | 1.3" | 0.1" | 1.5 | 4.7 |
| October | 61°F (16°C) | 34°F (1°C) | 48°F (9°C) | 1.4" | 4.0" | 13.3 | 0.2 |
| November | 48°F (9°C) | 23°F (-5°C) | 35°F (2°C) | 0.5" | 3.6" | 25.7 | 0.0 |
| December | 37°F (3°C) | 14°F (-10°C) | 26°F (-3°C) | 0.4" | 4.5" | 30.3 | 0.0 |
The year, day by day
Biddle works both ends of the calendar. Normal highs climb to 91°F by July 25 and hold at or above 90°F on 25 dates, then normal lows drop to freezing or below on 182 dates, bottoming at 13°F around January 1.
When the heat sits
Normal highs reach 90°F from July 16 through August 9, covering 25 dates. The broader mild season, normal highs of 70°F or more, runs May 21 to September 29.
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 18, then returns to freezing around October 20, covering 182 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 25, when 33% of years recorded at least a hundredth of an inch. The driest is December 7 at 11%. Summed across the calendar, that is about 71 wet dates a year.
The widest day
September 2 carries the biggest normal gap between afternoon and dawn, 34°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Biddle.
Where Biddle Stands Nationally
Freezing is routine here by normals standards — the normal low reaches 32°F or colder on about 182 nights a year, more than most ranked stations.
A drier-than-most normal water year — around 15 inches, below what four out of five ranked stations collect.
Biddle 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: 4.6"
4.3 days with precipitation
Snow: 5.7"
4.2 days with precipitation
Snow: 5.8"
5.4 days with precipitation
Snow: 5.6"
7.7 days with precipitation
Snow: 1.3"
9.9 days with precipitation
9.2 days with precipitation
7.1 days with precipitation
5.2 days with precipitation
Snow: 0.1"
4.8 days with precipitation
Snow: 4.0"
6.0 days with precipitation
Snow: 3.6"
4.3 days with precipitation
Snow: 4.5"
3.5 days with precipitation
Biddle spreads its precipitation across the year
Neither half of the year dominates here: June through August take 35% of the annual total and December through February 8%, with neither reaching the 35% that would mark a distinct wet season. Biddle has no dry season to plan around, though it does carry a wide 48.3°F gap between its warmest and coldest month.
The gap between the wettest and driest month still matters: May averages 3.0" and December 0.4". The three wettest months together take 47% 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 Biddle's precipitation splits across the calendar
About 72 days a year record measurable precipitation here, carrying 15.3" between them, or roughly 0.21 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 Biddle
Biddle averages 35.2 inches of snowfall a year, with March the snowiest month on the normals, spread across roughly 17 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: 35.2 inches of depth.
- Days recording measurable snow: about 17 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 28
50% probability date
Last Spring Freeze
May 14
50% probability date
Growing Season
137 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,048
Higher = more heating needed
Cooling Degree Days
662
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside MT closest to Biddle 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).
- Allegan, MI 47°F · 0.0°F off
- Auburn, NY 47°F · 0.0°F off
- Bartow, WV 47°F · 0.0°F off
- Dulce, NM 47°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (15.3" here), excluding temperature-peer places.
- Meeker, CO 15.3" · 0.0" off
- Sterling, CO 15.2" · 0.0" off
- Tatum, NM 15.2" · 0.0" off
- Collbran, CO 15.3" · 0.0" off
Snow and freeze rhythm
When cold and snow define Biddle
heating led · dry · mid swing
Biddle's energy balance leans toward cold weather: 7,048 annual heating degree days against 662 for cooling. Its 48.3°F seasonal range still makes the monthly rows more useful than the annual average alone.
Only about 137 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. Biddle coldest normal
January
Averaging 25°F (-4°C), this month sits below freezing for the month as a whole, not merely overnight.
-
2. Biddle typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Biddle snow peak
March
Biddle averages 35.2 inches of snow a year, with March the snowiest month on the normals.
Questions about Biddle's climate
How much snow does Biddle get? ▼
How many days above 90°F does Biddle get? ▼
How much energy does heating and cooling require in Biddle? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Biddle's primary station: BIDDLE 8 SW (USC00240743). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The 2024 Census Gazetteer identifies the exact name-and-state match as a census-designated place (GEOID 3005650), not an incorporated municipality. Match rule for Biddle: exact normalized name + state only, no fuzzy expansion, so nearby differently spelled facilities stay unmatched.
On this page every temperature, precipitation, and derived score for Biddle 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.