Hart Mtn Refuge, OR 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 Hart Mtn Refuge's primary NOAA station, HART MTN REFUGE.
The climate verdict for Hart Mtn Refuge
Dryness leads the climate profile for Hart Mtn Refuge, Oregon, with 15.3 inches of precipitation a year. NOAA records an annual average of 45°F. July is the warmest month at 65°F and December the coldest at 29°F.
- 45°F
- yearly average temperature, NOAA normal
- 15.3"
- annual precipitation
Hart Mtn Refuge: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00353692 · Hart Mtn Refuge, OR 45°F mean · 15.3" precip
TEMP-COOL · RANK-COOL · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COOL 45°F
- RANK-COOL #1,304
- PHOTO-FINISH ≈ Nye
- PRCP-DRY 15.3"
- SWING-MID 36°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 7,396 HDD
- STN-1 USC00353692
- BOOK-FULL 5/6 fields
Nearest mean-temperature peer: Nye, MT (+ 0.1 °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 OR station list.
- Hart Mtn Refuge (this station) 45°F
- Cold Jarbidge, NV 45°F
- Hot Murphy (desert)…, ID 45°F
- Near Nye, MT 45°F
- Near Bayview Model B…, ID 45°F
Climate Living Index · Hart Mtn Refuge
Hart Mtn Refuge: 19/100 · grade F
Hart Mtn Refuge publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Hart Mtn Refuge, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 15.3 in · 19.7 from 35 in | 29/100 · F |
| Annual temperature balance | 45.1°F · 22.4° from 67.5°F | 20/100 · F |
| Normal heat + freeze calendar | 206 calendar days | 11/100 · F |
Hart Mtn Refuge · 2026-08-04 · NOAA NCEI Climate Normals · method .
Hart Mtn Refuge is a continental Köppen climate: Dsb
Coldest-month mean 29.4°F and warmest-month mean 64.9°F place this station in continental, dry-summer, warm summer climates (Dsb). Class Dsb is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, dry-summer, warm summer.
- Köppen code
- Dsb
- Group
- Continental
- Warmest month
- 64.9°F
- Coldest month
- 29.4°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 Hart Mtn Refuge sits across the climate record
Three NOAA fields for Hart Mtn Refuge's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 81%
- Among 6,861 stations, Hart Mtn Refuge sits in the cooler third of annual means.
- Annual precipitation
- Drier than 82%
- Hart Mtn Refuge's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 81%
- Warmest-to-coldest month gap for Hart Mtn Refuge is compact versus 6,861 complete station-years.
Hart Mtn Refuge's measured station temperature trend
MethodologyAcross 38 complete annual observations from 1940 to 2016, HART MTN REFUGE warmed at a fitted rate of 0.16°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Hart Mtn Refuge primary station fitted change +0.16 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 41°F (5°C) | 22°F (-6°C) | 31°F (0°C) | 1.3" | 28.4 | 0.0 |
| February | 42°F (5°C) | 21°F (-6°C) | 32°F (0°C) | 1.5" | 25.8 | 0.0 |
| March | 48°F (9°C) | 25°F (-4°C) | 36°F (2°C) | 1.6" | 26.7 | 0.0 |
| April | 53°F (12°C) | 28°F (-2°C) | 41°F (5°C) | 1.8" | 23.2 | 0.0 |
| May | 62°F (17°C) | 35°F (2°C) | 49°F (9°C) | 2.1" | 14.7 | 0.0 |
| June | 72°F (22°C) | 40°F (5°C) | 56°F (13°C) | 1.2" | 5.5 | 0.6 |
| July | 83°F (28°C) | 47°F (8°C) | 65°F (18°C) | 0.5" | 1.0 | 6.8 |
| August | 83°F (28°C) | 46°F (8°C) | 64°F (18°C) | 0.4" | 1.7 | 4.7 |
| September | 74°F (23°C) | 39°F (4°C) | 56°F (14°C) | 0.7" | 7.1 | 0.7 |
| October | 61°F (16°C) | 31°F (0°C) | 46°F (8°C) | 1.4" | 18.7 | 0.0 |
| November | 47°F (8°C) | 24°F (-4°C) | 36°F (2°C) | 1.4" | 24.9 | 0.0 |
| December | 39°F (4°C) | 20°F (-7°C) | 29°F (-1°C) | 1.3" | 29.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 86°F around July 27, short of 90°F on every date, while 206 dates carry a normal low at or below freezing, the coldest 19°F near December 12.
The freezing stretch
The normal low stays at or below 32°F into May 5, then returns to freezing around October 13, covering 206 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.
The widest day
July 27 carries the biggest normal gap between afternoon and dawn, 37°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Hart Mtn Refuge.
Where Hart Mtn Refuge Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 206 nights a year, placing this among the most frost-prone tenth of ranked stations.
Day-to-night contrast is extreme by national standards — the widest normal daily swing reaches about 37°F, sharper than nine in ten ranked stations see.
Hart Mtn Refuge earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
Hart Mtn Refuge spreads its precipitation across the year
Neither half of the year dominates here: June through August take 14% of the annual total and December through February 26%, with neither reaching the 35% that would mark a distinct wet season. Hart Mtn Refuge has no dry season to plan around, though it does carry a 35.5°F seasonal spread.
The gap between the wettest and driest month still matters: May averages 2.1" and August 0.4". The three wettest months together take 36% 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.
Frost Dates & Growing Season
First Fall Freeze
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
7,396
Higher = more heating needed
Cooling Degree Days
163
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside OR closest to Hart Mtn Refuge 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 (45°F here).
- Alfred, NY 45°F · 0.0°F off
- Big Sandy, MT 45°F · 0.0°F off
- Bradford, NH 45°F · 0.0°F off
- Brady, MT 45°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (15.3" here), excluding temperature-peer places.
- Collbran, CO 15.3" · 0.0" off
- Savage, MT 15.3" · 0.0" off
- Fallbrook, CA 15.3" · 0.0" off
- Meeker, CO 15.3" · 0.0" off
Data-derived climate profile
How Hart Mtn Refuge's climate pattern fits together
heating led · dry · mid swing
Hart Mtn Refuge's energy balance leans toward cold weather: 7,396 annual heating degree days against 163 for cooling. Its 35.5°F seasonal range still makes the monthly rows more useful than the annual average alone.
A frost-free growing-season length is not available for Hart Mtn Refuge. That missing field is kept separate from the observed temperature and precipitation record rather than filled from a regional estimate.
July and December mark the typical warm and cold ends of the calendar in Hart Mtn Refuge's middle-range seasonal profile. The measured spread is 35.5°F. The annual average is 45°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Hart Mtn Refuge's cold-season load does not imply a wet climate. Annual precipitation is 15.3 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.
These labels group NOAA 1991-2020 normals from Hart Mtn Refuge's primary station, so the winter figures are a thirty-year average and not a floor: a single hard season can run well below them. Treat each band as a descriptive range for Hart Mtn Refuge, not an official NOAA class or a year-ahead forecast.
Questions about Hart Mtn Refuge's climate
How much rain does Hart Mtn Refuge get? ▼
How cold does Hart Mtn Refuge get in winter? ▼
How much energy does heating and cooling require in Hart Mtn Refuge? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Hart Mtn Refuge's primary station: HART MTN REFUGE (USC00353692). 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 Hart Mtn Refuge; 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 Hart Mtn Refuge 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.