Climate Comfort Score
78/100
Good
NOAA 1991–2020 normals 59°F annual avg Public-domain federal data
Hammon, OK Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 59°F
- Avg annual temp
- 78/100
- Comfort score
- 27.6"
- Annual precip
- 190d
- Growing season
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Hammon
Hammon, Oklahoma averages 59°F a year and scores 78/100 on the comfort index - good, milder than 74% of U.S. cities.
- 59°F
- annual average temperature (NOAA normal)
- 78/100
- comfort score, milder than 74% of U.S. cities
- 27.6"
- annual precipitation · 7" snow
- 190 days
- frost-free growing season
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
59°F (15°C)
Avg High
73°F
Avg Low
45°F
Annual Precip
27.6"
Annual Snow
7.1"
Comfort Score
78/100
Good
Avg Annual Temperature
59°F
30-year mean (NOAA NCEI)
Annual Precipitation
27.6"
Plus 7.1" of snow
Comfort score vs national 100-point ceiling (Hammon) 78.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Hammon area.
How Hammon compares to every U.S. city
Hammon's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
78 Top 26% higher than 74% of 6,915 US cities
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 Hammon
MethodologySince 1900, U.S. land temperatures have tracked (and diverged from) the global mean - the chart below shows how. Hammon's current NOAA 1991-2020 normal sits within that longer spread, and the most recent decade runs warmer than the 30-year mean.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 50°F (10°C) | 22°F (-5°C) | 36°F (2°C) | 0.9" | 1.8" | 27.9 | 0.0 |
| February | 55°F (13°C) | 25°F (-4°C) | 40°F (5°C) | 0.8" | 1.2" | 21.1 | 0.1 |
| March | 64°F (18°C) | 34°F (1°C) | 49°F (9°C) | 2.0" | 1.8" | 15.4 | 0.1 |
| April | 73°F (23°C) | 43°F (6°C) | 58°F (14°C) | 2.6" | 0.0" | 4.5 | 0.6 |
| May | 81°F (27°C) | 54°F (12°C) | 67°F (19°C) | 3.9" | 0.0" | 0.1 | 4.6 |
| June | 89°F (32°C) | 64°F (18°C) | 77°F (25°C) | 3.5" | 0.0" | 0.0 | 11.8 |
| July | 94°F (35°C) | 69°F (20°C) | 81°F (27°C) | 2.2" | 0.0" | 0.0 | 24.1 |
| August | 94°F (34°C) | 67°F (19°C) | 80°F (27°C) | 2.9" | 0.0" | 0.0 | 22.7 |
| September | 85°F (30°C) | 58°F (14°C) | 71°F (22°C) | 2.9" | 0.0" | 0.3 | 9.2 |
| October | 74°F (23°C) | 45°F (7°C) | 59°F (15°C) | 2.6" | 0.0" | 3.5 | 1.0 |
| November | 62°F (16°C) | 32°F (0°C) | 47°F (8°C) | 1.5" | 0.0" | 16.1 | 0.1 |
| December | 51°F (11°C) | 23°F (-5°C) | 37°F (3°C) | 1.5" | 2.3" | 26.8 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 0.9"
Snow: 1.8"
2.8 days with precipitation
February 0.8"
Snow: 1.2"
2.3 days with precipitation
March 2.0"
Snow: 1.8"
4.4 days with precipitation
April 2.6"
4.4 days with precipitation
May 3.9"
6.2 days with precipitation
June 3.5"
7.0 days with precipitation
July 2.2"
3.5 days with precipitation
August 2.9"
4.5 days with precipitation
September 2.9"
4.9 days with precipitation
October 2.6"
4.3 days with precipitation
November 1.5"
3.4 days with precipitation
December 1.5"
Snow: 2.3"
3.2 days with precipitation
Frost Dates & Growing Season
First Fall Freeze
October 23
50% probability date
Last Spring Freeze
April 16
50% probability date
Growing Season
190 days
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
4,086
Higher = more heating needed
Cooling Degree Days
1,777
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Hammon's climate means for you
Hammon runs 59°F a year - peaking in July, coldest in January.
- Gardeners get about 190 frost-free days, with the last spring freeze near April 16 - plan the planting calendar around it, not the regional average.
- Energy bills track 4,086 heating and 1,777 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: Hammon, OK
An annual average temperature of 59°F, ranging from a mean daily high of 73°F to a mean daily low of 45°F is what the NOAA 1991–2020 climate normals report for Hammon, Oklahoma. July is typically the warmest month of the year, while January is the coldest. That baseline comes from station USC00343871 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Beyond temperature, Hammon averages 27.6 inches of precipitation annually, with 7.1 inches typically falling as snow - a real factor for anyone planning to live, garden, or travel here. The frost-free season averages 190 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 16 and the first fall freeze near October 23. Turning to energy use, 4,086 heating degree days and 1,777 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Hammon scores 78/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows, shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.
Frequently Asked Questions
What is the average temperature in Hammon, OK? ▼
The average annual temperature in Hammon, Oklahoma is 59°F. The warmest month averages 94°F (35°C) and the coldest averages 22°F (-5°C).
How much rain does Hammon get? ▼
Hammon receives 27.6 inches of precipitation annually, including 7.1 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Hammon? ▼
Hammon has a climate comfort score of 78/100 (Good), milder than 74% of U.S. cities in the PlainClimate database.
When is the growing season in Hammon? ▼
Hammon has approximately 190 frost-free days per year, with the last spring freeze around April 16 and the first fall freeze around October 23.
How much energy does heating and cooling require in Hammon? ▼
Hammon has 4,086 heating degree days and 1,777 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 Hammon climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00343871 near Hammon.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00343871. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
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.