Bonham Rsvr, CO Climate: Temperature & Rain by Month
Annual temperature and rainfall from NOAA NCEI's 1991–2020 normals →; comfort score computed by PlainClimate
30-year climate normals (1991-2020) from Bonham Rsvr's primary NOAA station, BONHAM RSVR.
The climate verdict for Bonham Rsvr
Bonham Rsvr, Colorado has a mixed annual climate rather than one dominant extreme. Its NOAA normal shows an annual average of 33°F. July is the warmest month at 55°F and December the coldest at 15°F.
- 33°F
- average temperature, NOAA 1991-2020 normal
- 31.4"
- yearly precipitation total
Bonham Rsvr: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00050825 · Bonham Rsvr, CO 33°F mean · 31.4" precip
TEMP-COLD · RANK-COOL · PHOTO-FINISH · PRCP-MID · SWING-MID · COMF-UNK · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-COLD 33°F
- RANK-COOL #69
- PHOTO-FINISH ≈ Climax
- PRCP-MID 31.4"
- SWING-MID 40°F
- COMF-UNK Comfort n/a
- LOAD-HEAT 11,618 HDD
- STN-1 USC00050825
- BOOK-FULL 5/6 fields
Nearest mean-temperature peer: Climax, CO ( -0.9 °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 CO station list.
- Hot Soldotna, AK 34°F
- Near Campbell Creek…, AK 34°F
- Bonham Rsvr (this station) 33°F
- Cold Yellowstone Lake, WY 32°F
- Near Climax, CO 32°F
Climate Living Index · Bonham Rsvr
Bonham Rsvr: 20/100 · grade F
Bonham Rsvr publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Bonham Rsvr, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Precipitation balance | 31.4 in · 3.6 from 35 in | 87/100 · A |
| Annual temperature balance | 33.1°F · 34.4° from 67.5°F | 0/100 · F |
| Normal heat + freeze calendar | 249 calendar days | 0/100 · F |
Bonham Rsvr · 2026-08-04 · NOAA NCEI Climate Normals · method .
Bonham Rsvr is a continental Köppen climate: Dsc
Coldest-month mean 15.2°F and warmest-month mean 55.0°F place this station in continental, dry-summer, cool summer climates (Dsc). Class Dsc is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: continental, specifically continental, dry-summer, cool summer.
- Köppen code
- Dsc
- Group
- Continental
- Warmest month
- 55.0°F
- Coldest month
- 15.2°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 Bonham Rsvr sits across the climate record
Three NOAA fields for Bonham Rsvr's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Cooler than 99%
- Among 6,861 stations, Bonham Rsvr sits in the cooler third of annual means.
- Annual precipitation
- 42nd percentile wetness
- Neither arid nor torrential versus 6,352 station totals.
- Seasonal temperature swing
- 35th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 26°F (-3°C) | 6°F (-14°C) | 16°F (-9°C) | 2.9" | 31.0 | 0.0 |
| February | 27°F (-3°C) | 4°F (-16°C) | 15°F (-9°C) | 3.6" | 27.9 | 0.0 |
| March | 34°F (1°C) | 12°F (-11°C) | 23°F (-5°C) | 3.1" | 30.6 | 0.0 |
| April | 40°F (4°C) | 17°F (-8°C) | 29°F (-2°C) | 3.0" | 29.1 | 0.0 |
| May | 49°F (10°C) | 27°F (-3°C) | 38°F (3°C) | 2.1" | 25.8 | 0.0 |
| June | 62°F (17°C) | 37°F (3°C) | 49°F (10°C) | 1.1" | 8.3 | 0.0 |
| July | 68°F (20°C) | 42°F (6°C) | 55°F (13°C) | 2.0" | 0.9 | 0.0 |
| August | 64°F (18°C) | 40°F (5°C) | 52°F (11°C) | 2.2" | 1.9 | 0.0 |
| September | 57°F (14°C) | 34°F (1°C) | 46°F (8°C) | 2.5" | 13.6 | 0.0 |
| October | 45°F (7°C) | 24°F (-4°C) | 35°F (2°C) | 2.6" | 26.8 | 0.0 |
| November | 34°F (1°C) | 14°F (-10°C) | 24°F (-5°C) | 2.5" | 29.3 | 0.0 |
| December | 26°F (-3°C) | 5°F (-15°C) | 15°F (-9°C) | 3.8" | 31.0 | 0.0 |
The year, day by day
Summer here tops out rather than builds: the warmest normal high is 68°F around July 10, short of 90°F on every date, while 249 dates carry a normal low at or below freezing, the coldest 3°F near February 12.
The freezing stretch
The normal low stays at or below 32°F into May 29, then returns to freezing around September 24, covering 249 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 1 carries the biggest normal gap between afternoon and dawn, 27°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Bonham Rsvr.
Where Bonham Rsvr Stands Nationally
Winters bite deep and often: the normal nightly low dips to freezing or below on around 249 nights a year, placing this among the most frost-prone tenth of ranked stations.
Bonham Rsvr earns one nationally notable standing (outer quintile) against 6,860 NOAA 1991–2020 normals stations, middle-of-the-pack metrics stay silent here.
Monthly Precipitation
Average monthly rainfall
Bonham Rsvr spreads its precipitation across the year
Neither half of the year dominates here: June through August take 17% of the annual total and December through February 33%, with neither reaching the 35% that would mark a distinct wet season. Bonham Rsvr has no dry season to plan around, though it does carry a 39.8°F seasonal spread.
The gap between the wettest and driest month still matters: December averages 3.8" and June 1.1". The three wettest months together take 33% 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
11,618
Higher = more heating needed
Cooling Degree Days
0
Higher = more cooling needed
Warmest Month
July
Coldest Month
December
Nationwide similar cities
Other rankable U.S. places outside CO closest to Bonham Rsvr 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 (33°F here).
- Soldotna, AK 34°F · 1.0°F off
- Cooke City, MT 34°F · 1.1°F off
- Kenai, AK 34°F · 1.1°F off
- Silver Gate, MT 34°F · 1.2°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (31.4" here), excluding temperature-peer places.
- Dansville, NY 31.4" · 0.0" off
- Amasa, MI 31.4" · 0.0" off
- Primghar, IA 31.4" · 0.0" off
- New London, MN 31.4" · 0.0" off
Data-derived climate profile
How Bonham Rsvr's climate pattern fits together
heating led · moderate · mid swing
Bonham Rsvr's energy balance leans toward cold weather: 11,618 annual heating degree days against 0 for cooling. Its 39.8°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 Bonham Rsvr. 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 Bonham Rsvr's middle-range seasonal profile. The measured spread is 39.8°F. The annual average is 33°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Bonham Rsvr's 31.4 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Snowfall is not added to the interpretation because its annual value is missing. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
These labels group NOAA 1991-2020 normals from Bonham Rsvr'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 Bonham Rsvr, not an official NOAA class or a year-ahead forecast.
Questions about Bonham Rsvr's climate
How much rain does Bonham Rsvr get? ▼
How cold does Bonham Rsvr get in winter? ▼
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Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Bonham Rsvr's primary station: BONHAM RSVR (USC00050825). 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 Bonham Rsvr; 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 Bonham Rsvr 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.