Boise City, OK 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 Boise City's primary NOAA station, BOISE CITY 2 E.
The climate verdict for Boise City
Dryness leads the climate profile for Boise City, Oklahoma, with 18.3 inches of precipitation a year. NOAA records an annual average of 56°F. Its climate comfort score of 59/100 (moderate) lands mid-pack nationally, exceeding 37% of station-mapped location scores.
- 56°F
- annual average temperature (NOAA normal)
- 59/100
- comfort score, above 37% of station-mapped location scores
- 18.3"
- annual precipitation · 32" snow
- 174 days
- growing season, frost-free days
Boise City: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USC00340908 · Boise City, OK 56°F mean · 18.3" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 56°F
- RANK-UPPER #4,460
- PHOTO-FINISH ≈ Williamstown
- PRCP-DRY 18.3"
- SWING-MID 42°F
- COMF-MID 59/100
- LOAD-HEAT 4,405 HDD
- STN-1 USC00340908
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Williamstown, KY (+ 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 OK station list.
- Hot Hawthorne, NV 57°F
- Boise City (this station) 56°F
- Cold English, IN 56°F
- Near Williamstown, KY 56°F
- Near Lexington Blueg…, KY 56°F
Climate Living Index · Boise City
Boise City: 38/100 · grade F
Boise City publishes 5 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 1 missing weight rescale to 100.
PlainClimate-derived for Boise City, not an official NOAA rating. Rankings still use Comfort Score 59/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 56.4°F · 11.1° from 67.5°F | 64/100 · C |
| Frost-free season | 174 days/year | 45/100 · D |
| Precipitation balance | 18.3 in · 16.7 from 35 in | 41/100 · D |
| Snowfall burden | 31.8 inches/year | 36/100 · F |
| Normal heat + freeze calendar | 209 calendar days | 9/100 · F |
Boise City · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Boise City'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
- 78.3°F
- Coldest month
- 36.1°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 Boise City sits across the climate record
Three NOAA fields for Boise City's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 65th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Drier than 75%
- Boise City's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 45th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Boise City compares across U.S. station-mapped locations
Boise City's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
59 37th percentile score exceeds 37% 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%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). This entry sits in this band.
- 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
Boise City's measured station temperature trend
MethodologyAcross 74 complete annual observations from 1909 to 2016, BOISE CITY 2 E warmed at a fitted rate of 0.05°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Boise City primary station fitted change +0.05 °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 | 52°F (11°C) | 20°F (-6°C) | 36°F (2°C) | 0.5" | 7.3" | 29.0 | 0.0 |
| February | 56°F (13°C) | 23°F (-5°C) | 39°F (4°C) | 0.4" | 2.5" | 25.2 | 0.0 |
| March | 64°F (18°C) | 30°F (-1°C) | 47°F (8°C) | 1.1" | 7.2" | 19.7 | 0.0 |
| April | 72°F (22°C) | 38°F (3°C) | 55°F (13°C) | 1.4" | 2.3" | 7.0 | 0.6 |
| May | 80°F (27°C) | 47°F (8°C) | 64°F (18°C) | 1.8" | 0.2" | 0.9 | 5.3 |
| June | 90°F (32°C) | 58°F (14°C) | 74°F (23°C) | 2.3" | 0.0" | 0.0 | 16.6 |
| July | 94°F (34°C) | 63°F (17°C) | 78°F (26°C) | 3.1" | 0.0" | 0.0 | 23.6 |
| August | 91°F (33°C) | 62°F (16°C) | 76°F (24°C) | 3.2" | 0.0" | 0.0 | 18.6 |
| September | 85°F (29°C) | 54°F (12°C) | 69°F (21°C) | 1.8" | 0.0" | 0.1 | 8.5 |
| October | 74°F (23°C) | 40°F (5°C) | 57°F (14°C) | 1.5" | 1.3" | 4.9 | 0.9 |
| November | 61°F (16°C) | 29°F (-1°C) | 45°F (7°C) | 0.6" | 3.1" | 19.6 | 0.0 |
| December | 51°F (11°C) | 22°F (-6°C) | 37°F (3°C) | 0.7" | 7.9" | 28.6 | 0.0 |
The year, day by day
Boise City works both ends of the calendar. Normal highs climb to 94°F by July 11 and hold at or above 90°F on 70 dates, then normal lows drop to freezing or below on 139 dates, bottoming at 20°F around January 1.
When the heat sits
Normal highs reach 90°F from June 14 through August 22, covering 70 dates. The broader mild season, normal highs of 70°F or more, runs April 9 to October 25.
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 March 25, then returns to freezing around November 8, covering 139 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 July 27, when 25% of years recorded at least a hundredth of an inch. The driest is November 19 at 9%. Summed across the calendar, that is about 52 wet dates a year.
The widest day
March 21 carries the biggest normal gap between afternoon and dawn, 35°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Boise City.
Where Boise City Stands Nationally
Heat is a defining feature of the normals calendar — the normal daily high reaches 90°F on roughly 70 days a year, more than four out of five ranked stations record.
Daily temperature swings run wider than most of the country, peaking near 35°F between the normal high and low.
Boise City 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: 7.3"
2.7 days with precipitation
Snow: 2.5"
2.6 days with precipitation
Snow: 7.2"
3.6 days with precipitation
Snow: 2.3"
4.4 days with precipitation
Snow: 0.2"
5.9 days with precipitation
5.8 days with precipitation
7.2 days with precipitation
6.6 days with precipitation
4.0 days with precipitation
Snow: 1.3"
3.4 days with precipitation
Snow: 3.1"
2.6 days with precipitation
Snow: 7.9"
3.2 days with precipitation
Boise City runs a summer-peaked wet season
47% of Boise City'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 August at 3.2", on a 42.2°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: August, July, June, taking 47% of the annual total between them.
- Driest month: February at 0.4".
- Winter share: 9% 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.
When it rains in Boise City, it arrives in quantity
18.3" of precipitation falls across only about 52 wet days here, averaging 0.35 inches each. Fewer days carry more water: the year's total is delivered in comparatively heavy events rather than persistent damp.
- Days with measurable precipitation
- about 52 a year, 14% of all days
- Average depth per wet day
- 0.35 inches
- Most wet days
- July, about 7
- Fewest wet days
- February, about 3
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, and a per-day average is not a forecast of any individual storm.
Winter brings real snow to Boise City
Boise City averages 31.8 inches of snowfall a year, with December the snowiest month on the normals, spread across roughly 12 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: 31.8 inches of depth.
- Days recording measurable snow: about 12 a year.
- At a rough ten-to-one melt ratio, snow accounts for on the order of 17% 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 17
50% probability date
Last Spring Freeze
April 26
50% probability date
Growing Season
174 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,405
Higher = more heating needed
Cooling Degree Days
1,305
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside OK closest to Boise City 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 (56°F here).
- Appomattox, VA 56°F · 0.0°F off
- Dalhart, TX 56°F · 0.0°F off
- Hudson, KS 56°F · 0.0°F off
- Lipscomb, TX 56°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (18.3" here), excluding temperature-peer places.
- Hulett, WY 18.4" · 0.0" off
- Lubbock, TX 18.3" · 0.0" off
- New Salem, ND 18.3" · 0.0" off
- Lodi, CA 18.4" · 0.0" off
Snow and freeze rhythm
When cold and snow define Boise City
heating led · dry · mid swing
Boise City's energy balance leans toward cold weather: 4,405 annual heating degree days against 1,305 for cooling. Its 42.2°F seasonal range still makes the monthly rows more useful than the annual average alone.
Boise City's frost-free season lasts about 174 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
-
1. Boise City coldest normal
January
The monthly mean of 36°F (2°C) sits near freezing, so cold nights and above-freezing afternoons share the same month.
-
2. Boise City typical freeze period
January through December
The station reports average freezing days from January through December.
-
3. Boise City snow peak
December
Boise City averages 31.8 inches of snow a year, with December the snowiest month on the normals.
Questions about Boise City's climate
How much snow does Boise City get? ▼
How many days above 90°F does Boise City get? ▼
How much energy does heating and cooling require in Boise City? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Boise City's primary station: BOISE CITY 2 E (USC00340908). 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 an incorporated place (GEOID 4007300). Match rule for Boise City: 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 Boise City 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.