PlainClimate
NOAA 1991–2020 normals 58°F annual avg Public-domain federal data

Guymon Muni, OK Climate

Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →

58°F
Avg annual temp
68/100
Comfort score
17.8"
Annual precip
188d
Growing season

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Guymon Muni

Guymon Muni, Oklahoma averages 58°F a year and scores 68/100 on the comfort index - good, milder than 58% of U.S. cities.

58°F
yearly average temperature, NOAA normal
68/100
comfort score, milder than 58% of U.S. cities
17.8"
precipitation, annual total
188 days
frost-free days per growing season

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

58°F (14°C)

Avg High

72°F

Avg Low

43°F

Annual Precip

17.8"

Comfort Score

68/100

Good

Climate Comfort Score

68/100

Good

Avg Annual Temperature

58°F

30-year mean (NOAA NCEI)

Annual Precipitation

17.8"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Guymon Muni) 68.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Guymon Muni area.

How Guymon Muni compares to every U.S. city

Guymon Muni's comfort score vs. all U.S. cities

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

68 Top 42% higher than 58% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). This entry sits in this band. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020

Warming context for Guymon Muni

Methodology

Zooming out from Guymon Muni's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 51°F (10°C) 22°F (-6°C) 36°F (2°C)
February 54°F (12°C) 24°F (-4°C) 39°F (4°C)
March 63°F (17°C) 32°F (0°C) 48°F (9°C)
April 71°F (22°C) 41°F (5°C) 56°F (13°C)
May 81°F (27°C) 51°F (11°C) 66°F (19°C)
June 91°F (33°C) 62°F (16°C) 76°F (25°C)
July 95°F (35°C) 67°F (19°C) 81°F (27°C)
August 92°F (33°C) 65°F (18°C) 79°F (26°C)
September 85°F (30°C) 57°F (14°C) 71°F (22°C)
October 73°F (23°C) 43°F (6°C) 58°F (14°C)
November 61°F (16°C) 31°F (-1°C) 46°F (8°C)
December 50°F (10°C) 23°F (-5°C) 36°F (2°C)

Monthly Precipitation

Average monthly rainfall

January 0.4"

3.2 days with precipitation

February 0.3"

3.5 days with precipitation

March 1.1"

5.3 days with precipitation

April 1.5"

6.2 days with precipitation

May 2.3"

7.2 days with precipitation

June 2.9"

7.7 days with precipitation

July 2.4"

8.6 days with precipitation

August 2.6"

8.5 days with precipitation

September 1.4"

6.5 days with precipitation

October 1.8"

5.8 days with precipitation

November 0.5"

3.1 days with precipitation

December 0.7"

3.6 days with precipitation

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

What Guymon Muni's climate means for you

Guymon Muni runs 58°F a year - peaking in July, coldest in January.

  • Gardeners get about 188 frost-free days, with the last spring freeze near April 18 - plan the planting calendar around it, not the regional average.
  • Energy bills track 4,293 heating and 1,640 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: Guymon Muni, OK

Guymon Muni, Oklahoma runs an annual average of 58°F, ranging from a mean daily high of 72°F to a mean daily low of 43°F, per NOAA's 1991–2020 climate normals. July is typically the warmest month of the year, while January is the coldest. Drawn from station USW00003030, these thirty-year averages smooth out year-to-year swings into a baseline for what a typical month looks like here.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Guymon Muni receives roughly 17.8 inches of precipitation each year, predominantly as rainfall. The frost-free season averages 188 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 18 and the first fall freeze near October 23. For energy use, 4,293 heating degree days and 1,640 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Guymon Muni scores 68/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and January-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.

Frequently Asked Questions

What is the average temperature in Guymon Muni, OK?
The average annual temperature in Guymon Muni, Oklahoma is 58°F. The warmest month averages 95°F (35°C) and the coldest averages 22°F (-6°C).
How much rain does Guymon Muni get?
Guymon Muni receives 17.8 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Guymon Muni?
Guymon Muni has a climate comfort score of 68/100 (Good), milder than 58% of U.S. cities in the PlainClimate database.
When is the growing season in Guymon Muni?
Guymon Muni has approximately 188 frost-free days per year, with the last spring freeze around April 18 and the first fall freeze around October 23.
How much energy does heating and cooling require in Guymon Muni?
Guymon Muni has 4,293 heating degree days and 1,640 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Guymon Muni climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00003030 near Guymon Muni.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00003030. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.