Guymon Muni, OK Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Guymon Muni's primary NOAA station, GUYMON MUNI AP.
The climate verdict for Guymon Muni
Dryness leads the climate profile for Guymon Muni, Oklahoma, with 17.8 inches of precipitation a year. NOAA records an annual average of 58°F. Its climate comfort score of 68/100 (good) lands mid-pack nationally, exceeding 56% of station-mapped location scores.
- 58°F
- yearly average temperature, NOAA normal
- 68/100
- comfort score, above 56% of station-mapped location scores
- 17.8"
- precipitation, annual total
- 188 days
- frost-free days per growing season
Guymon Muni: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00003030 · Guymon Muni, OK 58°F mean · 17.8" precip
TEMP-MILD · RANK-UPPER · PHOTO-FINISH · PRCP-DRY · SWING-MID · COMF-MID · LOAD-HEAT · STN-1 · BOOK-FULL
- TEMP-MILD 58°F
- RANK-UPPER #4,665
- PHOTO-FINISH ≈ Independence
- PRCP-DRY 17.8"
- SWING-MID 45°F
- COMF-MID 68/100
- LOAD-HEAT 4,293 HDD
- STN-1 USW00003030
- BOOK-FULL 6/6 fields
Nearest mean-temperature peer: Independence, KS (+ 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.
- Guymon (this station) 58°F
- Cold Stockton Dam, MO 58°F
- Hot Follett, TX 58°F
- Near Independence, KS 58°F
- Near Vienna, MO 58°F
Climate Living Index · Guymon Muni
Guymon Muni: 42/100 · grade D
Guymon Muni publishes 4 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 2 missing weights rescale to 100.
PlainClimate-derived for Guymon Muni, not an official NOAA rating. Rankings still use Comfort Score 68/100 (separate formula). Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Annual temperature balance | 57.6°F · 9.9° from 67.5°F | 68/100 · C |
| Frost-free season | 188 days/year | 56/100 · C |
| Precipitation balance | 17.8 in · 17.3 from 35 in | 39/100 · F |
| Normal heat + freeze calendar | 204 calendar days | 12/100 · F |
Guymon Muni · 2026-08-04 · NOAA NCEI Climate Normals · method · Comfort Score method.
Guymon Muni'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
- 80.8°F
- Coldest month
- 36.3°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 Guymon Muni sits across the climate record
Three NOAA fields for Guymon Muni's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- 68th percentile warmth
- Mid-pack annual mean versus 6,861 station normals.
- Annual precipitation
- Drier than 76%
- Guymon Muni's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- 56th percentile swing
- Typical seasonal amplitude versus 6,861 complete station-years.
How Guymon Muni compares across U.S. station-mapped locations
Guymon Muni's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
68 Top 44% score exceeds 56% 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%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). This entry sits in this band.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 51°F (10°C) | 22°F (-6°C) | 36°F (2°C) | 0.4" | 28.3 | 0.0 |
| February | 54°F (12°C) | 24°F (-4°C) | 39°F (4°C) | 0.3" | 24.0 | 0.1 |
| March | 63°F (17°C) | 32°F (0°C) | 48°F (9°C) | 1.1" | 15.8 | 0.2 |
| April | 71°F (22°C) | 41°F (5°C) | 56°F (13°C) | 1.5" | 4.7 | 1.9 |
| May | 81°F (27°C) | 51°F (11°C) | 66°F (19°C) | 2.3" | 0.2 | 7.6 |
| June | 91°F (33°C) | 62°F (16°C) | 76°F (25°C) | 2.9" | 0.0 | 17.7 |
| July | 95°F (35°C) | 67°F (19°C) | 81°F (27°C) | 2.4" | 0.0 | 25.3 |
| August | 92°F (33°C) | 65°F (18°C) | 79°F (26°C) | 2.6" | 0.0 | 21.6 |
| September | 85°F (30°C) | 57°F (14°C) | 71°F (22°C) | 1.4" | 0.0 | 11.6 |
| October | 73°F (23°C) | 43°F (6°C) | 58°F (14°C) | 1.8" | 3.8 | 3.0 |
| November | 61°F (16°C) | 31°F (-1°C) | 46°F (8°C) | 0.5" | 17.2 | 0.0 |
| December | 50°F (10°C) | 23°F (-5°C) | 36°F (2°C) | 0.7" | 27.9 | 0.0 |
The year, day by day
Guymon Muni works both ends of the calendar. Normal highs climb to 95°F by July 12 and hold at or above 90°F on 79 dates, then normal lows drop to freezing or below on 125 dates, bottoming at 22°F around January 1.
When the heat sits
Normal highs reach 90°F from June 13 through August 30, covering 79 dates. The broader mild season, normal highs of 70°F or more, runs April 10 to October 23.
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 15, then returns to freezing around November 12, covering 125 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 August 3, when 29% of years recorded at least a hundredth of an inch. The driest is January 3 at 10%. Summed across the calendar, that is about 69 wet dates a year.
The widest day
March 20 carries the biggest normal gap between afternoon and dawn, 31°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Guymon Muni.
Where Guymon Muni Stands Nationally
Heat is a defining feature of the normals calendar — the normal daily high reaches 90°F on roughly 79 days a year, more than four out of five ranked stations record.
Guymon Muni 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
3.2 days with precipitation
3.5 days with precipitation
5.3 days with precipitation
6.2 days with precipitation
7.2 days with precipitation
7.7 days with precipitation
8.6 days with precipitation
8.5 days with precipitation
6.5 days with precipitation
5.8 days with precipitation
3.1 days with precipitation
3.6 days with precipitation
Guymon Muni runs a summer-peaked wet season
44% of Guymon Muni'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 2.9", on a 44.5°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, August, July, taking 44% of the annual total between them.
- Driest month: February at 0.3".
- 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.
How Guymon Muni's precipitation splits across the calendar
About 69 days a year record measurable precipitation here, carrying 17.8" between them, or roughly 0.26 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.
Frost Dates & Growing Season
First Fall Freeze
October 23
50% probability date
Last Spring Freeze
April 18
50% probability date
Growing Season
188 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,293
Higher = more heating needed
Cooling Degree Days
1,640
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside OK closest to Guymon Muni 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 (58°F here).
- Big Water, UT 58°F · 0.0°F off
- Gladeville, TN 58°F · 0.0°F off
- Independence, KS 58°F · 0.0°F off
- Moab, UT 58°F · 0.0°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (17.8" here), excluding temperature-peer places.
- Hart, TX 17.7" · 0.0" off
- Ulysses, KS 17.8" · 0.0" off
- Afton, WY 17.7" · 0.0" off
- Garrison, ND 17.8" · 0.0" off
Data-derived climate profile
How Guymon Muni's climate pattern fits together
heating led · dry · mid swing
Guymon Muni's energy balance leans toward cold weather: 4,293 annual heating degree days against 1,640 for cooling. Its 44.5°F seasonal range still makes the monthly rows more useful than the annual average alone.
Guymon Muni's frost-free season lasts about 188 days, a middle-length window whose endpoints matter more than the annual average. It describes freeze probability, not year-specific planting conditions.
July and January mark the typical warm and cold ends of the calendar in Guymon Muni's middle-range seasonal profile. The measured spread is 44.5°F. The annual average is 58°F. Neither the annual mean nor one extreme month represents the full calendar on its own.
Guymon Muni's cold-season load does not imply a wet climate. Annual precipitation is 17.8 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 Guymon Muni'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 Guymon Muni, not an official NOAA class or a year-ahead forecast.
Questions about Guymon Muni's climate
How much rain does Guymon Muni get? ▼
How many days above 90°F does Guymon Muni get? ▼
How much energy does heating and cooling require in Guymon Muni? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Guymon Muni's primary station: GUYMON MUNI AP (USW00003030). 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 Guymon Muni; 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 Guymon Muni 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.